Water Body Name: | Imperial Valley Drains |
Water Body ID: | CAR7231000019990205150323 |
Water Body Type: | River & Stream |
DECISION ID |
164761 |
Region 7 |
Imperial Valley Drains |
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Pollutant: | Endosulfan |
Final Listing Decision: | Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Reason for Delisting: | Applicable WQS attained; according to new assessment method |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. The COMM beneficial use has not been designated to this waterbody. Beneficial use support will be reassessed in a future cycle, if more data are available. Additionally, LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Eight lines of evidence are available in the administrative record to assess this pollutant. Ten of 40 samples exceed the water quality objective, however the exceedances occurred from 1985 to 1996. LOE No. 46183 is combined with LOE No. 5607 for a use rating determination because both of them were assessed for the same beneficial uses, in the same matrix, and the same water quality objectives. Zero samples out of 61 exceed the OEHHA Fish Contaminant Goal for endosulfan. Organochlorine (OC) pesticides are man-made chemicals. There are no natural sources of these OC compounds. Endosulfan is one of the OC compounds, which was used for mainly agricultural uses during 1980s and 1990s. However, USEPA has initiated action to end the use of Endosulfan based on the Endosulfan Memorandum of Agreement in 2010. The use of Endosulfan is phasing out, and the registrants of Endosulfan are voluntarily cancelling all existing Endosulfan uses. Since OC compounds are attached to sediments, sediment management practices (MPs) plays important roles in reducing the compounds. A USEPA approved TMDL, Imperial Valley Drains (IVDs) Sediment TMDL and Prohibition, is already in place in Imperial County, which requires farmers/growers to implement improved sediment MPs. According to the CA Department of Pesticide Regulations (DPR) pesticide use reporting (PUR), the annual use of Endosulfan in Imperial County, where this waterbody is located, is significantly reduced past 20 years. The reported annual Endosulfan uses were 247, 400 pounds in 1990, and the amount reduced to 22 pounds in 2010. Although the use of Endosulfan for Alfalfa seed, which is the major crop produced in the Imperial County, will be ended by July 31, 2016, the farmers in Imperial County have stopped its uses since 2011. No uses of Endosulfan were reported in the PUR in 2011 in the Imperial County. In addition, seven additional fish tissue samples, which were not included in the current assessment cycle due to data solicitation cutoff date, were collected by the SWAMP and CA Department of Fish and Game (DFG) in 2011, and none of the samples exceeded applicable water quality objectives. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Ten of 40 total fraction fish tissue samples exceeded the NAS fish tissue guideline and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. However, the uses of Endosulfan is phasing out; the farmers have stopped using the Endosulfan for Alfalfa seed since 2011; the last exceedance was occurred on 11/3/1996; and more recent data, collected from 1999-2011, indicates that the water quality standard is attained. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be removed from the section 303(d) list because applicable water quality standards for the pollutant are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
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LOE ID: | 46182 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Endosulfan, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Total endosulfan was calculated as the sum of endosulfan l and endosulfan ll. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for endosulfan (l and ll) in fish tissue is 13,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
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LOE ID: | 126208 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 7 samples exceeded the water quality standard for Endosulfan. Data were collected for 6 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Endosulfan, Total concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723RICEDR, 723PEACHD, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
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LOE ID: | 126398 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 10 samples exceeded the water quality standard for Endosulfan. Data were collected for 6 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Endosulfan, Total concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723NRFGDN, 723BARWDR, 723NRGNDN, 723RI3DRN, 723SCNTDR, 723CNTDRN, 723OLANDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
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LOE ID: | 126506 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 10 samples exceeded the water quality standard for Endosulfan. Data were collected for 6 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for endosulfan (l and ll) in fish tissue is 13,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723NRFGDN, 723BARWDR, 723NRGNDN, 723RI3DRN, 723SCNTDR, 723CNTDRN, 723OLANDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
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LOE ID: | 46183 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Endosulfan, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Total endosulfan was calculated as the sum of endosulfan l and endosulfan ll. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total Endosulfan concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
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LOE ID: | 126458 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 7 samples exceeded the water quality standard for Endosulfan. Data were collected for 6 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for endosulfan (l and ll) in fish tissue is 13,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723RICEDR, 723PEACHD, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
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LOE ID: | 5533 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value. (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 20,000 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
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LOE ID: | 5607 | ||||
Pollutant: | Endosulfan | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 10 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, 6 fish fillet samples and 4 whole fish samples collected at 6 locations exceeded the NAS tissue guideline. At Rose drain exceedances were found in 1 carp fillet composite sample collected on 11/17/1998, and 1 mosquitofish whole fish composite sample collected on 8/17/1991. At South Central drain an exceedance was found in 1 carp single fish fillet sample collected on 8/01/1990. At Rice drain 3 exceedances were found in 2 carp fillet composite samples collected on 10/10/1985, and 10/15/1986. At Pumice drain exceedances were found in 1 channel catfish fillet composite sample collected on 11/20/1990, and 1 carp fillet composite sample collected on 11/20/1990. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample collected on 8/16/19991. At Peach drain exceedences were found in 1 mosquitofish whole fish composite sample collected on 11/03/1996, and 1 sailfin molly whole fish composite sample collected on 9/17/1992 (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. Exceedances were found in samples collected from 10/10/1985 through 11/17/1998. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
DECISION ID |
170104 |
Region 7 |
Imperial Valley Drains |
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Pollutant: | DDE (Dichlorodiphenyldichloroethylene) |
Final Listing Decision: | Delist from 303(d) list (being addressed by USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2020) |
Revision Status | Revised |
Reason for Delisting: | Flaws in original listing |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
Date TMDL Approved by USEPA: | 03/19/2024 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. The number of measured exceedances is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicant pollutants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that this water segment-pollutant combination should not be placed on the CWA section 303(d) List. Refer to the lines of evidence in this fact sheet for the data and information, sample counts and exceedances, quality assurance documentation, beneficial uses, and water quality objectives or numeric evaluation guidelines relied upon for this decision. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be removed from the section 303(d) list because applicable water quality standards for the pollutant are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 220743 | ||||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Not Recorded | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP Sportfish Rivers and Streams data for Kern River, North Fork to determine beneficial use support and the results are as follows 0 of the 1 samples exceeded the water quality standard for Endosulfan. Data were collected for 1 fish species (1 composite(s) of Rainbow Trout each composed of 5 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | This is a placeholder LOE use to generate a decision on the 2020 cyce. It should not be considered for assessment and should be deleted once it has been used for its purpose. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Placeholder | ||||
Temporal Representation: | Placeholder | ||||
Environmental Conditions: | |||||
QAPP Information: | Placeholder | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 333604 | ||||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Sum DDE from MacDonald et al., 2000a which states that the probable effect concentration for Sum DDE is 31.3 ug/kg. (dw = Dry Weight) | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-08 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353919 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv). | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723STRDRN ( R Drain Tributary at Alcott and wister road ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-04-10. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353879 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Growth (wt/surv indiv) on 2019-10-15. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723SSDS03 ( Salton Sea Drain S3 (Trifolium TD1) ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353719 | ||||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Sum DDE from MacDonald et al., 2000a which states that the probable effect concentration for Sum DDE is 31.3 ug/kg. (dw = Dry Weight) | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353718 | ||||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Sum DDE from MacDonald et al., 2000a which states that the probable effect concentration for Sum DDE is 31.3 ug/kg. (dw = Dry Weight) | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353716 | ||||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Sum DDE from MacDonald et al., 2000a which states that the probable effect concentration for Sum DDE is 31.3 ug/kg. (dw = Dry Weight) | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
169424 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Ammonia |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2020) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal from the CWA section 303(d) List under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. Eighteen lines of evidence are available in the administrative record to assess pollutant. Four of the 29 total fraction water samples and 8 out of 31 toxicity samples exceed the threshold. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Four of the 29 total fraction water samples and eight of 31 toxicity samples exceed the threshold and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354037 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354045 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354041 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354046 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354047 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354042 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354043 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-01-14 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354038 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354044 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354052 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354049 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 127558 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 29 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 4 of 29 samples exceeded the water quality standard for Ammonia as N. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 28 monitoring site(s) (723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD, 728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 220742 | ||||
Pollutant: | Ammonia | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Not Recorded | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP Sportfish Contamination in Lakes and Resrv data for Isabella Lake to determine beneficial use support and the results are as follows 0 of the 1 samples exceeded the water quality standard for Endosulfan. Data were collected for 1 fish species (1 composite(s) of Channel Catfish each composed of 4 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | This is a placeholder LOE use to generate a decision on the 2020 cyce. It should not be considered for assessment and should be deleted once it has been used for its purpose. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Placeholder | ||||
Temporal Representation: | Placeholder | ||||
Environmental Conditions: | |||||
QAPP Information: | Placeholder | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 334567 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-01-08 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354035 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354050 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for AmmoniaNAFreshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156116 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Disulfoton |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2020) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal from the CWA section 303(d) List under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. Nine lines of evidence are available in the administrative record to assess pollutant. 2 of the 2 total water samples exceed the guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 2 of 2 total fraction water samples exceeded the evaluation guideline and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 128890 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality standard for Disulfoton. Although a total of 7 samples were collected, 5 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Disulfoton is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | Data was collected from 23 station(s): (Station Codes 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-08 to 2012-05-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 320880 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354486 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Disulfoton. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Disulfoton is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354494 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Disulfoton. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Disulfoton is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354490 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Disulfoton. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Disulfoton is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354493 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Disulfoton. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Disulfoton is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354487 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Disulfoton. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Disulfoton is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
159222 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Imidacloprid |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal from the CWA section 303(d) List under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. 49 lines of evidence are available in the administrative record to assess pollutant. 33 of the 36 water samples exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 17 of 17 dissolved water samples exceeded the criteria and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 4. 8 of 11 total water samples exceeded the criteria and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 5. 8 of 8 water samples with no fraction reported exceeded the criteria and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 351813 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335417 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354719 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality threshold for Imidacloprid. Although a total of 3 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPVD69). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354710 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354715 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354721 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354725 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354712 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355861 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354713 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354732 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354729 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355863 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355858 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354736 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354739 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354728 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355870 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354723 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Imidacloprid. Although a total of 3 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPMV61). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355860 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355859 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355884 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355872 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355867 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354716 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354738 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355874 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355876 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355879 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354718 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality threshold for Imidacloprid. Although a total of 3 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354726 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354711 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355877 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355880 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355857 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MALVAD (Malva Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355869 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354720 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 3 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355873 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355868 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354733 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355875 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355878 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355862 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355864 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355865 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355866 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Imidacloprid. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355883 | ||||
Pollutant: | Imidacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Imidacloprid. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the 4-day average concentration of Imidacloprid does not exceed 0.016 ug/L. | ||||
Guideline Reference: | Water Quality Criteria Report for Imidacloprid Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology. University of California, Davis | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156142 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | PCBs (Polychlorinated biphenyls) |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | Agriculture |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal on the section 303(d) list under sections 2.2, 3.11, 4.1, 4.5 and 4.6 of the Listing Policy. Under these sections of the Policy, a minimum of one line of evidence is needed to assess listing status. At least two lines of evidence are necessary to assess listing status for pollutants sediment, and pollutant concentrations in sediment must be associated with sediment toxicity to justify adding that pollutant to the CWA section 303(d) List. Under section 3.11 when all other listing factors do not result in the listing of a water segment but information indicates non-attainment of standards, a water segment shall be evaluated to determine whether the weight of evidence demonstrates that water quality standard is not attained. If the weight of evidence indicates non-attainment, the water segment shall be placed on the CWA section 303(d) List. They may be approved by RBs in resolutions The COMM beneficial use has not been designated to this waterbody. While there is not a specific health advisory for Imperial Valley Drains, in 2022 OEHHA released Statewide Health Advisory and Guidelines for Eating Fish from California’s Rivers, Streams, and Creeks without Site-Specific Advice for PCBs. Fishing occurs at Imperial Valley Drains and the fish species common carp used for the assessments in LOE 126632 and 126267 are part of 2022 Advisory.¿ Also, data were collected in this waterbody by the Surface Water Ambient Monitoring Program to monitor pollutants in fish tissue for the purpose of evaluating risks to human health from consumption. Twelve lines of evidence are available in the administrative record to assess this pollutant. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. LOE 5108 was removed from the decision because it was split apart into multiple individual pollutant LOEs. LOE 321033 replaces the corresponding data. Eight of 8 total fraction fish tissue samples exceeded the OEHHA fish contaminant goal. Nine of 12 fish fillet fraction fish tissue samples exceeded the modified OEHHA fish tissue evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Eight of 8 total fraction fish tissue samples exceeded the OEHHA fish contaminant goal. Nine of 12 fish fillet fraction fish tissue samples exceeded the modified OEHHA fish tissue evaluation guideline. These exceed the allowable frequency listed in Table 4.1 of the Listing Policy. This pollutant is a possible cause or contributor to toxicity. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 321033 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353825 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PCBs (Polychlorinated biphenyls) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total PCBs is the probable effect concentration (PEC) of 676 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355071 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for PCBs (Polychlorinated biphenyls). Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The PCB, total aroclors criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.014 ug/L. This value corresponds to the sum of aroclors 1242, 1254, 1221, 1232, 1248, 1260, and 1016 (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 46230 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 4 samples exceed the criterion for PCB, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites were averaged for species collected at the same time and location. Composites comprised of 2-3 fish for channel catfish and 1 fish for Tilapia spp. and flathead catfish. Total PCB was assessed for as follows: PCB aroclors and congeners were summed separately and the sum that yielded the highest value was used for the assessment. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in fish tissue is 2.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5647 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in imperial valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline. (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 500 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 126632 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 2 of the 3 samples exceeded the water quality standard for PCBs (Polychlorinated biphenyls). Data were collected for 3 fish species (1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). Of these, 1 species (Mosquitofish) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in fish tissue is 2.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723SCNTDR, 723CNTDRN, 723NRFGDN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-10-15 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126518 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 5 samples exceeded the water quality standard for PCBs (Polychlorinated biphenyls). Data were collected for 5 fish species (1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total PCB concentration of 500 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-11 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126633 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 3 samples exceeded the water quality standard for PCBs (Polychlorinated biphenyls). Data were collected for 3 fish species (1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total PCB concentration of 500 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723SCNTDR, 723CNTDRN, 723NRFGDN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-10-15 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46243 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for PCB, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites were averaged for species collected at the same time and location. Total PCB was assessed for as follows: PCB aroclors and congeners were summed separately and the sum that yielded the highest value was used for the assessment. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total PCB concentration of 500 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5441 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 8 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. Eighteen fish fillet and 14 whole fish sample results could not be used in this assessment because the sample results were non-detect and the detection limit was above the criteria concentration. The 3 fish fillet samples and 5 whole fish samples that were acceptable were generally collected from 12/1999 through 11/2000. Of these total samples, 3 fish fillet samples and 5 whole fish samples collected at 5 locations exceeded the OEHHA Fish Contaminant Goal. At Holtville Main drain an exceedance was found in 1 channel catfish fillet composite sample collected on 12/05/1999. At Central drain exceedances were found in 1 carp fillet composite sample collected on 12/05/1999, and 1 sailfin molly whole fish composite sample collected on 11/08/2000. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample collected on 12/05/1999, and 1 sailfin molly whole fish composite sample collected on 11/08/2000. At Greeson an exceedance was found in 1 mosquitofish whole fish composite sample collected on 11/07/2000. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples collected on (2)11/08/2000 (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal of 3.6 ug/kg to protect human health when consuming fish (OEHHA, 2008). | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. The exceedances were found in samples collected from 12/05/1999 through 11/08/2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 126267 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 4 of the 5 samples exceeded the water quality standard for PCBs (Polychlorinated biphenyls). Data were collected for 5 fish species (1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). Of these, 2 species (Mosquitofish, Common Carp) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in fish tissue is 2.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-11 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
159219 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Selenium |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal from the section 303(d) list under section 4.1, 4.5, and 4.6 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. Beneficial use support for Commercial or recreational collection of fish, shellfish, or organisms will be reassessed in a future cycle, if more data are available. Thirteen lines of evidence are available in the administrative record to assess pollutant. Zero sediment and tissue samples exceeded the objectives. Forty-two of 63 dissolved water samples exceed the continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater (California Toxics Rule, 2000) for the "Warm Freshwater Habitat" beneficial use assessed. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero sediment and tissue samples exceeded the objectives, however, forty-two of 63 dissolved water samples exceed the continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater (California Toxics Rule, 2000) for the "Warm Freshwater Habitat" beneficial use assessed. This exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. This pollutant is a possible cause or contributor to toxicity. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355271 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355378 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed USGS California Water Science Center data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | WQX from the NWQMP for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: USGS-331043115365301 (SONNY BONO SALTON SEA NWR E POND NR NILAND CA). | ||||
Temporal Representation: | The samples were collected between the dates of 2021-05-14 and 2021-05-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | QAPP for USGS Data Collected during the 2026 Integrated Report Cycle | ||||
QAPP Information Reference(s): | QAPP for USGS Data Collected during the 2026 Integrated Report Cycle | ||||
|
|||||
LOE ID: | 355379 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed USGS California Water Science Center data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | WQX from the NWQMP for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: USGS-331052115365301 (SONNY BONO SALTON SEA NWR NE POND SITE C NR NILAND). | ||||
Temporal Representation: | The samples were collected between the dates of 2021-05-14 and 2021-05-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | QAPP for USGS Data Collected during the 2026 Integrated Report Cycle | ||||
QAPP Information Reference(s): | QAPP for USGS Data Collected during the 2026 Integrated Report Cycle | ||||
|
|||||
LOE ID: | 355273 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355274 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 129013 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 56 | ||||
Number of Exceedances: | 40 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 40 of 56 samples exceeded the water quality standard for Selenium. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 32 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 336173 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 30274 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).
No evaluation guideline for the sediment fraction of Selenium for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5443 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 47 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-three fish fillet samples and 24 whole fish samples were taken at 19 locations in Imperial Valley drains. The samples were generally collected from 10/1986 through 11/2000. Of these total samples, none exceeded the OEHHA Fish Contaminant Goal (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal of 7400 ppb to protect human health when consuming fish (OEHHA, 2008). | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach drain, Tokay drain, Barbara Worth drain, Warren drain, Dixie drain No.1, Dixie drain No.3, Dixie drain No.5, Forgetmenot drain, and West Side drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1986 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-three fish fillet samples of carp, tilapia, channel catfish, flathead catfish, spiny soft shell turtle, redbelly tilapia, and Mozambique tilapia were collected. Seven carp fillet composite samples were collected in the years 1985, (2)1986, (3)1990 and 1999. Three carp single fish fillet samples were collected in the years 1986, 1989-90. Two tilapia fillet composite samples were collected in the years 1996, and 2000. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. One flathead catfish single fish fillet sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. Three Mozambique tilapia fillet composite samples were collected in year (3)1986. Twenty-four whole fish composite samples of mosquitofish, and sailfin molly were collected. Fifteen mosquitofish whole fish composite samples were collected in the years 1985, (2)1986, 1989, (2)1990, (4)1991, 1995-96, (3)2000. Nine sailfin molly whole fish composite samples were collected in the years (3)1986, (2)1989, 1991, (2)1992, 2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 46244 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Selenium. Seventeen composites (1 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The OEHHA Fish Contaminant Goal for selenium in fish tissue is 7.4 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A background dietary consumption rate of 0.114 mg/day is applied for this micronutrient. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126269 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Selenium. Data were collected for 8 fish species (1 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 105 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 3 composite(s) of Common Carp each composed of 1 fish per composite, 5 composite(s) of Tilapia spp. each composed of 1 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The OEHHA Fish Contaminant Goal for selenium in fish tissue is 7.4 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A background dietary consumption rate of 0.114 mg/day is applied for this micronutrient. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723BARWDR, 723SCNTDR, 723NRGNDN, 723OLANDR, 723NRFGDN, 723CNTDRN, 723PEACHD. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-08 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156150 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Toxaphene |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal on the section 303(d) list under sections 2.2 and 4.5 of the Listing Policy. Under these sections of the Policy, a minimum of one line of evidence is needed to assess listing status. The COMM beneficial use has not been designated to this waterbody. However, data were collected in this waterbody by the Surface Water Ambient Monitoring Program to monitor pollutants in fish tissue for the purpose of evaluating risks to human health from consumption. Data were collected as recent as 2012 and 23 out of 23 samples exceed the allowable frequency based on table 3.1 of the Listing Policy. The weight of evidence of the data and information indicate water quality standards are not attained. Seven lines of evidence are available in the administrative record to assess this pollutant. Twenty-three of 23 total fraction fish tissue samples exceeded the OEHHA fish contaminant goal. Twenty-one of 40 total fraction fish tissue samples exceeded the NAS fish tissue evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Twenty-three of 23 total fraction fish tissue samples exceeded the OEHHA fish contaminant goal. Twenty-one of 40 total fraction fish tissue samples exceeded the NAS fish tissue evaluation guideline. These exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
LOE ID: | 46245 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Toxaphene. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Eleven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for toxaphene in fish tissue is 4.3 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 46246 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Toxaphene. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Toxaphene concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 355333 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Toxaphene. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The toxaphene criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0002 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319648 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aldrin, Chlorpyrifos, Diazinon, or Toxaphene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 127204 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Toxaphene. Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Toxaphene criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0002 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Data was collected from 23 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5658 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 21 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, 12 fish fillet samples and 9 whole fish samples collected at 12 locations exceeded the NAS tissue guideline. At Rose drain an exceedance was found in 1 carp fillet composite sample. At Holtville Main drain exceedances were found in 2 channel catfish fillet composite samples. At Central drain an exceedance was found in 1 carp fillet composite sample. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample, 1 carp single fish fillet sample, and 1 sailfin molly whole fish composite. At Rice drain 3 exceedances were found in 2 carp fillet composite samples. At Verde drain an exceedance was found in 1 carp single fish fillet. At Greeson exceedances were found in 1 carp fillet composite sample, and 1 yellow bullhead fillet composite sample. At Pumice drain exceedances were found in 1 channel catfish fillet composite sample. At Mayflower drain an exceedence was found in 1 mosquitofish whole fish composite sample. At Orange drain an exceedance was found in 1 mosquitofish whole fish composite. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. Exceedances were found in samples collected from 10/10/1985 through 11/08/2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 2958 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 5 | ||||
Data and Information Type: | Not Specified | ||||
Data Used to Assess Water Quality: | Five out of 5 samples exceeded the NAS guideline. A total of 5 whole fish composite samples of mosquitofish and sailfin molly were collected. Two mosquitofish samples were collected in 2000 and 3 sailfin molly samples were collected in 1992 and 2001-02. The guideline was exceeded in all samples (TSMP, 2002).
Two out of 2 samples exceeded the OEHHA guideline. One filet composite sample (1999) and 1 individual filet sample (2002) of carp were collected. Both samples were in exceedance. Three out of 3 samples exceeded the NAS guideline. A total of 3 whole fish composite samples of sailfin molly and mosquitofish were collected. One sailfin molly sample was collected in 1992 and 2 mosquitofish samples were collected in 1995-96. The guideline was exceeded in all samples. |
||||
Data Reference: | Placeholder reference 2006 303(d) | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Colorado River Basin RWQCB Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Placeholder reference 2006 303(d) | ||||
Evaluation Guideline: | NAS Guideline (whole fish) 100 ng/g and OEHHA Screening Value 30 ng/g. | ||||
Guideline Reference: | Placeholder reference 2006 303(d) | ||||
Spatial Representation: | The Barbara Worth Drain, Peach Drain, and Rice Drain only. For the 5 samples: 1 station located off Anderhold Road south of Highway S80 where drain comes alongside road. This information only applies to the Barbara Worth Drain area of the Imperial Valley Drains. For the 2 samples: 1 station located downstream of Meloland Road. This information only applies to the Central Drain area of the Imperial Valley Drains. For the 3 samples: One station located at highway 115 crossing. This information only applies to the Peach Drain area of the Imperial Valley Drains. | ||||
Temporal Representation: | Samples were collected on 12-5-1999, 10/22/2002, in 1992, 1995-1996 and 2000-2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | Toxic Substances Monitoring Program 1992-93 Data Report.
Environmental Chemistry Quality Assurance and Data Report for the Toxic Substances Monitoring Program, 1996-2000. Department of Fish and Game. Environmental Chemistry Quality Assurance and Data Report for the Toxic Substances Monitoring Program, 2001-2002. Department of Fish and Game. |
||||
QAPP Information Reference(s): | |||||
|
|||||
LOE ID: | 5442 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 23 | ||||
Number of Exceedances: | 23 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. Nine fish fillet and eight whole fish sample results could not be used in this assessment because the sample results were non-detect and the detection limit was above the criteria concentrations. The 12 fish fillet samples and 11 whole fish samples that were acceptable were generally collected from 12/1922 through 11/2000. Of these total samples, 12 fish fillet samples and 11 whole fish samples collected at 12 locations exceeded the OEHHA Fish Contaminant Goal. At Rose drain an exceedance was found in 1 carp fillet composite sample. At Holtville Main drain exceedances were found in 2 channel catfish fillet composite samples. At Central drain exceedances were found in 1 carp fillet composite sample, and 1 sailfin molly whole fish composite sample. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample, 1 carp single fish fillet sample, and 1 sailfin molly whole fish composite sample. At Rice drain 3 exceedances were found in 2 carp fillet composite samples. At Verde drain an exceedance was found in 1 carp single fish fillet sample. At Greeson drain exceedances were found in 1 carp fillet composite sample, 1 yellow bullhead fillet composite sample, and 1 mosquitofish whole fish composite sample. At Pumice drain an exceedance was found in 1 channel catfish fillet composite sample. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Orange drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal of 6.1 ug/kg to protect human health when consuming fish (OEHHA, 20008). | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. The exceedances were found in samples collected from 10/10/1985 through 12/05/1999. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
DECISION ID |
159220 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Toxicity |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown | Agriculture |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal from the CWA section 303(d) List under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess pollutant in the water and sediment matrices. Ten of the 39 water samples exceed the evaluation guideline for water aquatic life toxicity. One of the 3 sediment samples exceed the evaluation guideline for sediment aquatic life toxicity. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Ten of the 39 water samples exceed the evaluation guideline for water aquatic life toxicity and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 353916 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723WRMWDD ( Wormwood Drain ). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 353879 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Growth (wt/surv indiv) on 2019-10-15. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723SSDS03 ( Salton Sea Drain S3 (Trifolium TD1) ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353891 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 3 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Survival on 2019-04-08. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723SSDS03 ( Salton Sea Drain S3 (Trifolium TD1) ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353905 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Survival. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723STRDRN ( R Drain Tributary at Alcott and wister road ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353886 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Survival on 2020-01-08. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723IPYG46 ( Vail Drain Near Young ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-10-16 and 2020-01-08. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353919 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv). | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723STRDRN ( R Drain Tributary at Alcott and wister road ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-04-10. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156104 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chlordane |
Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | Agriculture |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
Date TMDL Approved by USEPA: | 03/19/2024 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal on the section 303(d) list under sections 2.2 and 4.5 of the Listing Policy. Under these sections of the Policy, a single line of evidence is needed to assess listing status. The COMM beneficial use has not been designated to this waterbody. However, data were collected in this waterbody by the Surface Water Ambient Monitoring Program to monitor pollutants in fish tissue for the purpose of evaluating risks to human health from consumption. LOE 5438 was not used for this assessment and the data has been replaced with LOE 46768 due to an updated Fish Contaminant Goal from OEHHA. 11 LOEs are available for to assess this pollutant. 15 of 27 samples exceed the tissue quality threshold for the fish fillet fraction for commercial or recreational collection of fish and 20 of 40 samples exceed the tissue quality threshold for the total fraction for commercial or recreational collection of fish. This does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. The weight of evidence of the data and information indicate water quality standards are not attained. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Twenty of 40 total fraction and 15 of 27 fish fillet fraction fish tissue samples exceeded the modified OEHHA fish contaminant goal for the "Commercial or recreational collection of fish, shellfish, or organisms" beneficial use assessed. This does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 353642 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chlordane . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chlordane is the probable effect concentration (PEC) of 17.6 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320035 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320863 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5581 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, 1 fish fillet samples collected at 1 location exceeded the NAS tissue guideline. At Rice drain 3 an exceedence was found in 1 carp fillet composite sample collected on 10/10/1985. (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. An exceedance was found in a sample collected on 10/10/1985. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | |||||
|
|||||
LOE ID: | 46768 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 20 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish tissue samples were generally collected from 10/1985 through 11/2000. Of these total samples, 9 fish fillet samples and 10 whole fish samples collected at 10 locations exceeded the OEHHA Fish Contaminant Goal. At Holtville Main drain exceedances were found in 2 channel catfish fillet composite samples collected on 10/28/1989, and 12/05/1999. At Central drain exceedances were found in 1 carp fillet composite sample collected on 12/05/1999, and 1 sailfin molly whole fish composite sample collected on 11/08/2000. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample collected on 12/05/1999, and 1 carp single fish fillet collected on 8/01/1990. At Rice drain 3 an exceedance was found in 1 carp fillet composite sample collected on 10/10/1985. At Greeson exceedances were found in 1 carp fillet composite sample collected on 11/15/1985, 1 spiny soft-shelled turtle collected on 9/18/1992, and 1 mosquitofish whole fish composite sample collected on 11/07/2000. At Pumice drain an exceedance was found in 1 channel catfish fillet composite sample collected on 11/20/1990. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample collected on 8/16/1991. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples collected on 10/28/1995, and 11/03/1996, and 1 sailfin molly whole fish composite sample collected on 9/17/1992. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples collected on (2)11/08/2000, and 1 sailfin molly whole fish composite sample collected on 9/17/1992. At Warren Drain an exceedance was found in 1 mosquitofish whole fish composite sample collected on 9/09/1990 (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total chlordane in fish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. The exceedances were found in samples collected from 10/10/1985 through 11/08/2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 126607 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 7 of the 8 samples exceeded the water quality standard for Total Chlordanes. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). Of these, 2 species (Mosquitofish, Common Carp) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total chlordane in fish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46001 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Chlordane, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Total chlordane was calculated as the sum of the following chlordane isomers: cis- and trans-chlordane, cis- and trans-nonachlor, and oxychlordane. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total Chlordane concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126387 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Total Chlordanes. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total Chlordane concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126565 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 15 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 15 samples exceeded the water quality standard for Total Chlordanes. Data were collected for 11 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total Chlordane concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723OLANDR, 723NRGNDN, 723PEACHD, 723CNTDRN, 723NRFGDN, 723RI3DRN, 723SCNTDR, 723BARWDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46000 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 4 samples exceed the criterion for Chlordane, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Total chlordane was calculated as the sum of the following chlordane isomers: cis- and trans-chlordane, cis- and trans-nonachlor, and oxychlordane. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total chlordane in fish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126564 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 15 | ||||
Number of Exceedances: | 5 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 5 of the 15 samples exceeded the water quality standard for Total Chlordanes. Data were collected for 11 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). Of these, 1 species (Mosquitofish) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total chlordane in fish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723OLANDR, 723NRGNDN, 723PEACHD, 723CNTDRN, 723NRFGDN, 723RI3DRN, 723SCNTDR, 723BARWDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5438 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 19 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish tissue samples were generally collected from 10/1985 through 11/2000. Of these total samples, 9 fish fillet samples and 10 whole fish samples collected at 10 locations exceeded the OEHHA Fish Contaminant Goal. At Holtville Main drain exceedances were found in 2 channel catfish fillet composite samples collected on 10/28/1989, and 12/05/1999. At Central drain exceedances were found in 1 carp fillet composite sample collected on 12/05/1999, and 1 sailfin molly whole fish composite sample collected on 11/08/2000. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample collected on 12/05/1999, and 1 carp single fish fillet collected on 8/01/1990. At Rice drain 3 an exceedance was found in 1 carp fillet composite sample collected on 10/10/1985. At Greeson exceedances were found in 1 carp fillet composite sample collected on 11/15/1985, 1 spiny soft-shelled turtle collected on 9/18/1992, and 1 mosquitofish whole fish composite sample collected on 11/07/2000. At Pumice drain an exceedance was found in 1 channel catfish fillet composite sample collected on 11/20/1990. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample collected on 8/16/1991. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples collected on 10/28/1995, and 11/03/1996, and 1 sailfin molly whole fish composite sample collected on 9/17/1992. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples collected on (2)11/08/2000, and 1 sailfin molly whole fish composite sample collected on 9/17/1992. At Warren Drain an exceedance was found in 1 mosquitofish whole fish composite sample collected on 9/09/1990 (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal of 5.6 ug/kg to protect human health when consuming fish (OEHHA, 2008). | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. The exceedances were found in samples collected from 10/10/1985 through 11/08/2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
DECISION ID |
156105 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chlorpyrifos |
Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | Agriculture |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
Date TMDL Approved by USEPA: | 03/19/2024 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal on the CWA section 303(d) List under sections 2.2 and 4.1 of the Listing Policy. Under 4.1 of the Policy, a minimum of one line of evidence is needed to assess listing status. 20 lines of evidence are available in the administrative record to assess this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. There is sufficient justification to place it in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by RWQCB and USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 24 of 33 samples exceeded the water quality threshold for warm freshwater habitat for the not recorded fraction, 16 of 18 samples exceeded the water quality threshold for warm freshwater habitat for the total fraction, and 8 of 31 samples exceeded the toxicity threshold for warm freshwater habitat and these exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. The Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL was approved by USEPA on 3/19/2024. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354225 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 334761 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354220 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 8 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 8 of 8 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354208 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 6 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 6 of 7 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354210 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Chlorpyrifos. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354209 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354213 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Chlorpyrifos. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354211 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354216 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354212 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354221 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 2 of 8 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354222 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 8 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 8 of 8 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354205 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Chlorpyrifos. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354230 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354203 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005) | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 319634 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aldrin, Chlorpyrifos, Diazinon, or Toxaphene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127974 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 12 | ||||
Number of Exceedances: | 12 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 12 of the 12 samples exceeded the water quality standard for Chlorpyrifos. Although a total of 23 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.014 ug/L (Siepmann and Finlayson 2000). | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Spatial Representation: | Data was collected from 49 station(s): (Station Codes 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46002 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Chlorpyrifos. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for chlorpyrifos in fish tissue is 660 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5531 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 10000 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
DECISION ID |
169663 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) |
Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | Agriculture |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
Date TMDL Approved by USEPA: | 03/19/2024 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal on the section 303(d) list under sections 2.2 and 4.5 of the Listing Policy. Under these sections of the Policy, a minimum of one line of evidence is needed to assess listing status. The COMM beneficial use has not been designated to this waterbody. However, data were collected in this waterbody by the Surface Water Ambient Monitoring Program to monitor pollutants in fish tissue for the purpose of evaluating risks to human health from consumption. Data were collected as recent as 2018 and 39 of 40 and 20 of 28 samples exceed the allowable frequency based on table 4.1 of the Listing Policy. The weight of evidence of the data and information indicate water quality standards are not attained. Nineteen lines of evidence are available in the administrative record to assess this pollutant. Thirty-nine of 40 tissue samples exceeded the Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal for consuming fish for the total fraction for the "Commercial or recreational collection of fish, shellfish, or organisms" (COMM) beneficial use assessed. Twenty of 28 tissue samples exceeded the modified OEHHA Fish Contaminant Goal for consuming fish for the fish fillet fraction for the COMM beneficial use assessed. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. There were no exceedances for water samples; however, tissue samples exceedances (see a, b and d below) and sediment sample exceedances (see g below), did not allow for delisting. Exceedances are as follows: a) Thirty-nine of 40 tissue samples exceeded the OEHHA Fish Contaminant Goal for consuming fish for the total fraction for the COMM beneficial use assessed. b) Twenty of 28 tissue samples exceeded the modified OEHHA Fish Contaminant Goal for consuming fish for the fish fillet fraction for the COMM beneficial use assessed. c) Fourteen of 40 tissue samples exceeded the National Academy of Science (NAS) tissue guideline for the protection of aquatic life uses (NAS, 1973). for the total fraction for the "Warm Freshwater Habitat" beneficial use assessed. d) Two of 28 tissue samples exceeded the National Academy of Science guidelines (NAS 1972) maximum concentration (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. for the fish fillet fraction for the "Warm Freshwater Habitat" beneficial use assessed. e) Zero of six water samples exceeded the California Toxics Rule (CTR) Criterion Maximum Concentration (CMC) for the protection of freshwater aquatic life uses (USEPA, 2000) for the dissolved fraction for the "Warm Freshwater Habitat" beneficial use assessed. f) Zero of 43 water samples exceeded the criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater (California Toxics Rule, 2000) for the total fraction for the "Warm Freshwater Habitat" beneficial use assessed. g.) Three of 6 sediment samples exceeded the probable effect concentration (PEC) of 572 ug/kg dry weight to protect aquatic life for the "Warm Freshwater Habitat" beneficial use and sediment toxicity is not exhibited. Tissue samples exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354360 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for DDT(p,p'). Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The DDT(4,4') criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.001 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 126593 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 16 | ||||
Number of Exceedances: | 8 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 8 of the 16 samples exceeded the water quality standard for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Data were collected for 12 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). Of these, 2 species (Mosquitofish, Common Carp) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total DDT in fish tissue is 15 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723CNTDRN, 723OLANDR, 723BARWDR, 723RI3DRN, 723NRGNDN, 723SCNTDR, 723PEACHD, 723NRFGDN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 353854 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353853 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353857 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 353919 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv). | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723STRDRN ( R Drain Tributary at Alcott and wister road ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-04-10. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 353879 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Growth (wt/surv indiv) on 2019-10-15. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723SSDS03 ( Salton Sea Drain S3 (Trifolium TD1) ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 5058 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentration (CMC) of 1.1 ug/l for the protection of freshwater aquatic life uses (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
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LOE ID: | 5439 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 39 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, 20 fish fillet samples and 19 whole fish samples collected at 15 locations exceeded the OEHHA Fish Contaminant Goal. At Rose drain exceedances were found in 1 carp fillet composite sample, and 1 mosquitofish whole fish composite sample. At Holtville Main drain exceedances were found in 2 channel catfish fillet composite samples, 1 tilapia fillet compostie sample, and 1 carp fillet composite sample. At Central drain exceedances were found in 1 carp fillet composite sample, 1 flathead catfish single fish fillet sample, and 1 sailfin molly whole fish composite sample. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample, 1 carp single fish fillet sample, 1 spiny soft shelled turtle fillet composite sample, and 1 sailfin molly whole fish composite sample. At Rice drain 3 exceedances were found in 2 carp fillet composite samples. At Verde drain an exceedance was found in 1 carp single fish fillet sample. At Greeson exceedances were found in 1 carp fillet composite sample, 1 yellow bullhead fillet composite sample, 1 spiny soft shelled turtle fillet composite sample, and 1 mosquitofish whole fish composite sample. At Fig drain exceedances were found in 1 carp fillet composite sample, 1 mosquitofish whole fish composite sample, and 3 sailfin molly whole fish composite samples. At Pumice drain exceedances were found in 1 channel catfish fillet composite sample, 1 tilapia fish composite sample, and 1 carp fillet composite sample. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Orange drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample. At Tokay drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample. At Warren drain exceedances were found in 2 mosquitofish whole fish composite samples (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal of 21 ug/kg to protect human health when consuming fish (OEHHA, 2008). | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. The exceedances were found in samples collected from 9/10/1985 through 12/05/1999. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 5591 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 14 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, 5 fish fillet samples and 9 whole fish samples collected at 9 locations exceeded the NAS tissue guideline. At Central drain an exceedance was found in 1 carp fillet composite sample. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample, 1 carp single fish fillet sample. At Rice drain 3 exceedances were found in 1 carp fillet composite sample. At Greeson an exceedance was found in 1 mosquitofish whole fish composite sample. At Pumice drain an exceedance was found in 1 channel catfish fillet composite sample. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Peach drain exceedances were found in 2 mosquitofish whole fish composites, and 1 sailfin molly whole fish composite sample. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composites. At Warren Drain exceedances were found in 2 mosquitofish whole fish composites (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 1000 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. Exceedances were found in samples collected from 10/10/1985 through 11/08/2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 127400 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for DDT (Dichlorodiphenyltrichloroethane). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The DDT(4,4') criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.001 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127818 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for DDT (Dichlorodiphenyltrichloroethane). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The DDT(4,4') criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.001 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723CNTDRN, 723NRGNDN, 723SSPDRN, 723RICEDR, 723SSDS02, 723RI3DRN, 723MUNDRN, 723SSDS03, 723SCNTDR, 723ARNDRN, 723HLVLDR, 723TI2DRN, 723OLANDR, 723VERDRN, 723MAGDRN, 723ROSDRN, 723BARWDR, 723SPRDRN, 723PEACHD, 723NRFGDN, 723ARIDRN, 723NETDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 333736 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-08 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 46166 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for DDT, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Total DDT was calculated as the sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total DDT concentration of 1000 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126594 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 16 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 2 of the 16 samples exceeded the water quality standard for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Data were collected for 12 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). Of these, 1 species (Mosquitofish) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total DDT concentration of 1000 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723CNTDRN, 723OLANDR, 723BARWDR, 723RI3DRN, 723NRGNDN, 723SCNTDR, 723PEACHD, 723NRFGDN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126361 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum total DDT concentration of 1000 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46165 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 4 of 4 samples exceed the criterion for DDT, Total. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Total DDT was calculated as the sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total DDT in fish tissue is 15 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126155 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 8 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 8 of the 8 samples exceeded the water quality standard for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). Of these, 2 species (Mosquitofish, Common Carp) exceeded the water quality standard. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for total DDT in fish tissue is 15 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 353724 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for DDT (Dichlorodiphenyltrichloroethane) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the sum of DDT is the probable effect concentration (PEC) of 62.9 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156115 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dieldrin |
Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | Agriculture |
TMDL Name: | Imperial Valley Organochlorine Compounds and Organophosphate Pesticides TMDL |
TMDL Project Code: | 1289 |
Date TMDL Approved by USEPA: | 03/19/2024 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for removal on the CWA section 303(d) List under sections 2.2 and 4.1 of the Listing Policy. Under 4.1 of the Policy, a minimum of one line of evidence is needed to assess listing status. 16 lines of evidence are available in the administrative record to assess this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. There is sufficient justification to place it in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by RWQCB and USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Eight of eight samples exceed the tissue quality threshold for the fish fillet fraction for commercial or recreational collection of fish, 36 of 36 samples exceed the tissue quality threshold for the total fraction for the commercial or recreational collection of fish, four of 40 samples exceed the tissue quality threshold for warm freshwater habitat, and eight of 31 samples exceed the water quality threshold for warm freshwater habitat. These exceed the allowable frequency listed in Table NUMBER of the Listing Policy. 4. The TMDL NAME was approved by USEPA on MM/DD/YEAR. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 320997 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319308 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 1724 ug/l Chromium, 0.24 ug/l Dieldrin, and 0.086 ug/l Endrin (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353735 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Dieldrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dieldrin is the probable effect concentration (PEC) of 61.8 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354438 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dieldrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dieldrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.056 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 126645 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 2 of the 2 samples exceeded the water quality standard for Dieldrin. Data were collected for 3 fish species (1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 5 fish per composite, 2 composite(s) of Tilapia spp. each composed of 5 fish per composite). Of these species, 2 species (Tilapia spp., Common Carp) exceeded the evaluation guideline. Although a total of 4 samples were collected 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for dieldrin in fish tissue is 0.32 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723NRFGDN, 723RI3DRN, 723NRGNDN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-10-15 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126583 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 2 of the 2 samples exceeded the water quality standard for Dieldrin. Data were collected for 3 fish species (1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite). Of these species, 2 species (Common Carp, Mosquitofish) exceeded the evaluation guideline. Although a total of 3 samples were collected 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for dieldrin in fish tissue is 0.32 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723BARWDR, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-04-20 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46168 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 4 of 4 samples exceed the criterion for Dieldrin. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for dieldrin in fish tissue is 0.32 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126246 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 3 samples exceeded the water quality standard for Dieldrin. Data were collected for 3 fish species (1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Dieldrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723BARWDR, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-04-20 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46181 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Dieldrin. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Dieldrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126657 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 4 samples exceeded the water quality standard for Dieldrin. Data were collected for 3 fish species (1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 5 fish per composite, 2 composite(s) of Tilapia spp. each composed of 5 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Dieldrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 3 station(s) with the station code(s): 723NRFGDN, 723RI3DRN, 723NRGNDN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-10-15 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5440 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 36 | ||||
Number of Exceedances: | 36 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. Four fish fillet sample results could not be used in this assessment because the sample results were non-detect and the detection limit was above the criteria concentration. The 17 fish fillet samples and 19 whole fish samples that were acceptable were generally collected from 5/1986 through 11/2000. Of these total samples, 17 fish fillet samples and 19 whole fish samples collected at 15 locations exceeded the OEHHA Fish Contaminant Goal. At Rose drain exceedances were found in 1 carp fillet composite sample, and 1 mosquitofish whole fish composite sample. At Holtville Main drain exceedances were found in 2 channel catfish fillet composite samples, and 1 carp fillet composite sample. At Central drain exceedances were found in 1 carp fillet composite sample, 1 flathead catfish single fish fillet sample, and 1 sailfin molly whole fish composite sample. At South Central drain exceedances were found in 1 channel catfish single fish fillet sample, 1 carp single fish fillet sample, 1 spiny soft shelled turtle fish composite sample, and 1 sailfin molly whole fish composite sample. At Rice drain 3 exceedances were found in 2 carp fillet composite samples. At Verde drain an exceedance was found in 1 carp single fish fillet sample. At Greeson exceedances were found in 1 carp fillet composite sample, 1 yellow bullhead fillet composite sample, 1 spiny soft shelled turtle fillet composite sample, and 1 mosquitofish whole fish composite sample. At Fig drain exceedances were found in 1 mosquitofish whole fish composite sample, and 3 sailfin molly whole fish composite samples. At Pumice drain exceedances were found in 1 channel catfish fillet composite sample, and 1 carp fillet composite sample. At Mayflower drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Orange drain an exceedance was found in 1 mosquitofish whole fish composite. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample. At Tokay drain an exceedance was found in 1 mosquitofish whole fish composite sample. At Barbara Worth drain exceedances were found in 2 mosquitofish whole fish composite samples, and 1 sailfin molly whole fish composite sample. At Warren Drain exceedances were found in 2 mosquitofish whole fish composite samples (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Fish Contaminant Goal of 0.46 ug/kg to protect human health when consuming fish (OEHHA, 2008). | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. The exceedances were found in samples collected from 9/10/1985 through 12/05/1999. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | |||||
|
|||||
LOE ID: | 5600 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, 1 fish fillet samples and 3 whole fish samples collected at 3 locations exceeded the NAS tissue guideline. At Rice drain 3 an exceedance was found in 1 carp fillet composite sample collected on 10/10/1985. At Peach drain exceedances were found in 2 mosquitofish whole fish composite samples collected on 10/28/1995, and 9/17/1992. At Warren drain an exceedance was found in 1 mosquitofish whole fish composite sample collected on 10/26/1989 (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. Exceedances were found in samples collected from 10/10/1985 through 10/28/1995. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | |||||
|
|||||
LOE ID: | 127164 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 41 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 41 samples exceeded the water quality standard for Dieldrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Dieldrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.056 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 128140 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Dieldrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Dieldrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.056 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 125395 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 4 samples collected by DPR Surface Water Study 290 Name for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Chironomus dilutus, for Ash Free Dry Mass, Chironomus dilutus, for Survival | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for DPR Surface Water Study 290 Name. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 4 stations. Monitoring site(s): ( 723IPHV10, 723IPMV61, 723IPRC99, 723IPVD69 ) | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | A QAPP was not required for this data | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 125408 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 27 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 7 of the 27 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day, at the same location with the same lab sample ID (if provided). The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca, for Survival, Hyalella azteca, for Growth (wt/surv indiv) | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 27 stations. Monitoring site(s): ( 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD ) | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-11-04. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156177 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | 1-Methylnaphthalene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320055 | ||||
Pollutant: | 1-Methylnaphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320000 | ||||
Pollutant: | 1-Methylnaphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Naphthalene, Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156176 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | 1-Methylphenanthrene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319267 | ||||
Pollutant: | 1-Methylphenanthrene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Phenanthrene, or 1-Methylphenanthrene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156178 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | 2,3,5-Trimethylnaphthalene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320056 | ||||
Pollutant: | 2,3,5-Trimethylnaphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320001 | ||||
Pollutant: | 2,3,5-Trimethylnaphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Naphthalene, Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156179 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | 2,6-Dimethylnaphthalene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320013 | ||||
Pollutant: | 2,6-Dimethylnaphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Naphthalene, Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319845 | ||||
Pollutant: | 2,6-Dimethylnaphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156146 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | 2-Methylnaphthalene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320014 | ||||
Pollutant: | 2-Methylnaphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Naphthalene, Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319846 | ||||
Pollutant: | 2-Methylnaphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156154 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Acenaphthene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319387 | ||||
Pollutant: | Acenaphthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthene, pp-DCBP, or Indeno(1,2,3,c,d)Pyrene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156155 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Acenaphthylene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319847 | ||||
Pollutant: | Acenaphthylene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320015 | ||||
Pollutant: | Acenaphthylene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Naphthalene, Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171953 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Acetamiprid |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 353938 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353936 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353937 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353933 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353942 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353934 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353941 | ||||
Pollutant: | Acetamiprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Acetamiprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for acetamiprid is the USEPA Aquatic Life Benchmark of 2.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171970 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Aldicarb |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 0 of the 5 samples exceed the OBJECTIVE/GUIDELINE/CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 0 of 5 samples exceeded the OBJECTIVE/GUIDELINE/CRITERIA and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 353950 | ||||
Pollutant: | Aldicarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for aldicarb is the USEPA Aquatic Life Benchmark of 0.46 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353945 | ||||
Pollutant: | Aldicarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for aldicarb is the USEPA Aquatic Life Benchmark of 0.46 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353948 | ||||
Pollutant: | Aldicarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for aldicarb is the USEPA Aquatic Life Benchmark of 0.46 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353947 | ||||
Pollutant: | Aldicarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for aldicarb is the USEPA Aquatic Life Benchmark of 0.46 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353949 | ||||
Pollutant: | Aldicarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for aldicarb is the USEPA Aquatic Life Benchmark of 0.46 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
171962 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Aldicarb sulfone |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 0 of the 5 samples exceed the OBJECTIVE/GUIDELINE/CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 0 of 5 samples exceeded the OBJECTIVE/GUIDELINE/CRITERIA and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 353961 | ||||
Pollutant: | Aldicarb sulfone | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfone. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfone is the USEPA Aquatic Life Benchmark of 140 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353953 | ||||
Pollutant: | Aldicarb sulfone | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfone. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfone is the USEPA Aquatic Life Benchmark of 140 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353956 | ||||
Pollutant: | Aldicarb sulfone | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfone. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfone is the USEPA Aquatic Life Benchmark of 140 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353954 | ||||
Pollutant: | Aldicarb sulfone | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfone. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfone is the USEPA Aquatic Life Benchmark of 140 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353958 | ||||
Pollutant: | Aldicarb sulfone | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfone. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfone is the USEPA Aquatic Life Benchmark of 140 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
171963 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Aldicarb sulfoxide |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353972 | ||||
Pollutant: | Aldicarb sulfoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfoxide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfoxide is the USEPA Aquatic Life Benchmark of 21.5 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353967 | ||||
Pollutant: | Aldicarb sulfoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfoxide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfoxide is the USEPA Aquatic Life Benchmark of 21.5 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353969 | ||||
Pollutant: | Aldicarb sulfoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfoxide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfoxide is the USEPA Aquatic Life Benchmark of 21.5 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353965 | ||||
Pollutant: | Aldicarb sulfoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfoxide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfoxide is the USEPA Aquatic Life Benchmark of 21.5 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353968 | ||||
Pollutant: | Aldicarb sulfoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldicarb Sulfoxide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Aldicarb Sulfoxide is the USEPA Aquatic Life Benchmark of 21.5 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156170 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Aldrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 319633 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aldrin, Chlorpyrifos, Diazinon, or Toxaphene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126344 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Aldrin. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Aldrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723BARWDR, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126541 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 11 samples exceeded the water quality standard for Aldrin. Data were collected for 7 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Aldrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723BARWDR, 723NRFGDN, 723CNTDRN, 723RI3DRN, 723NRGNDN, 723OLANDR, 723SCNTDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320033 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126961 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Aldrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Aldrin criterion maximum concentration to protect aquatic life in freshwater is 3 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126934 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Aldrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Aldrin criterion maximum concentration to protect aquatic life in freshwater is 3 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5573 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 45990 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Aldrin. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Aldrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353973 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The aldrin criterion maximum concentration (expressed as a 1-day average) to protect aquatic life in freshwater is 1.5 ug/L. The criterion of 3 ug/L provided in the California Toxics Rule is an instantaneous maximum concentration and was divided by 2 in order to better represent a criterion maximum concentration (CMC) value as specified in footnote (g) of Table (b)(1) of the California Toxics Rule (2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
159225 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Alkalinity as CaCO3 |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. 15 lines of evidence are available in the administrative record to assess this pollutant. Zero of the 18 samples exceed the guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of 18 samples exceeded the guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 334465 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-10-16 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354001 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-10-16 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353996 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-26 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354013 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-10-15 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354011 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-26 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353993 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-26 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353998 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353997 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354003 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-25 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354005 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-25 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353986 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-25 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353990 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354000 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-26 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354012 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353991 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2022-04-26 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171949 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Allethrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354015 | ||||
Pollutant: | Allethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Allethrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Allethrin is the USEPA Aquatic Life Benchmark of 1.05 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156210 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Aluminum |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354017 | ||||
Pollutant: | Aluminum | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Aluminum. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The aluminum criterion for the protection of aquatic life, is pH, total hardness, and dissolved organic carbon (DOC) dependent. When total hardness or DOC data were not available, default values based on the level III ecoregions developed by U.S EPA were substituted (EPA, 2018). When pH data were not available, the median pH value for the ecoregion, a pH value from a comparable waterbody, or a pH value from a local study in the same waterbody was used as a comparable surrogate. | ||||
Guideline Reference: | Final Aquatic Life Ambient Water Quality Criteria for Aluminum. EPA-822-R-18-001. Washington, D.C.: Office of Water, USEPA. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319499 | ||||
Pollutant: | Aluminum | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aluminum, Manganese, or Silver for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354021 | ||||
Pollutant: | Aluminum | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Aluminum. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The aluminum criterion for the protection of aquatic life, is pH, total hardness, and dissolved organic carbon (DOC) dependent. When total hardness or DOC data were not available, default values based on the level III ecoregions developed by U.S EPA were substituted (EPA, 2018). When pH data were not available, the median pH value for the ecoregion, a pH value from a comparable waterbody, or a pH value from a local study in the same waterbody was used as a comparable surrogate. | ||||
Guideline Reference: | Final Aquatic Life Ambient Water Quality Criteria for Aluminum. EPA-822-R-18-001. Washington, D.C.: Office of Water, USEPA. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334511 | ||||
Pollutant: | Aluminum | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Aluminum. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The aluminum criterion for the protection of aquatic life, is pH, total hardness, and dissolved organic carbon (DOC) dependent. When total hardness or DOC data were not available, default values based on the level III ecoregions developed by U.S EPA were substituted (EPA, 2018). When pH data were not available, the median pH value for the ecoregion, a pH value from a comparable waterbody, or a pH value from a local study in the same waterbody was used as a comparable surrogate. | ||||
Guideline Reference: | Final Aquatic Life Ambient Water Quality Criteria for Aluminum. EPA-822-R-18-001. Washington, D.C.: Office of Water, USEPA. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156198 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Ametryn |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319806 | ||||
Pollutant: | Ametryn | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ametryn, Prometryn, Simetryn, or Terbutryn for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156095 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Anthracene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353581 | ||||
Pollutant: | Anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Anthracene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for anthracene is the probable effect concentration (PEC) of 845 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319482 | ||||
Pollutant: | Anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Anthracene, Benz(a)Anthracene, or Dibenzo(a,h)Anthracene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353583 | ||||
Pollutant: | Anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Anthracene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for anthracene is the probable effect concentration (PEC) of 845 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156096 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Arsenic |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 5072 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the USFWS Biological Effects Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | United State Fish and Wildlife Service (USFWS) Biological Effect Criteria of 0.25 mg/l for the protection of aquatic life uses (USDOI, 1998). | ||||
Guideline Reference: | Guidelines for Interpretation of the Biological Effect of Selected Constituents in Biota, Water, and Sediment. US Department of Interior report. | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128658 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 57 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 57 samples exceeded the water quality standard for Arsenic. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for dissolved arsenic is 150 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 33 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 45991 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Arsenic. Seventeen composites (1 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Seventeen samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for arsenic in fish tissue is 0.0034 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. It is assumed that 10% of the total arsenic is present as inorganic arsenic. This constituent is a carcinogen therefore the risk level is set to one in a million. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5545 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 12 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-three fish fillet samples and 24 whole fish samples were taken at 19 locations in Imperial Valley drains. Nineteen fish fillet and 16 whole fish sample results could not be used in this assessment because the consituent was not analyzed in the sample. The 4 fish fillet samples and 8 whole fish samples that were acceptable were generally collected from 8/1990 through 11/2000 at nine locations. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 1 mg/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach drain, Tokay drain, Barbara Worth drain, Warren drain, Dixie drain No.1, Dixie drain No.3, Dixie drain No.5, Forgetmenot drain, and West Side drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1986 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-three fish fillet samples of carp, tilapia, channel catfish, flathead catfish, spiny soft shell turtle, redbelly tilapia, and Mozambique tilapia were collected. Seven carp fillet composite samples were collected in the years 1985, (2)1986, (3)1990 and 1999. Three carp single fish fillet samples were collected in the years 1986, 1989-90. Two tilapia fillet composite samples were collected in the years 1996, and 2000. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. One flathead catfish single fish fillet sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. Three Mozambique tilapia fillet composite samples were collected in year (3)1986. Twenty-four whole fish composite samples of mosquitofish, and sailfin molly were collected. Fifteen mosquitofish whole fish composite samples were collected in the years 1985, (2)1986, 1989, (2)1990, (4)1991, 1995-96, (3)2000. Nine sailfin molly whole fish composite samples were collected in the years (3)1986, (2)1989, 1991, (2)1992, 2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 321176 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320034 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353602 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Arsenic . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for arsenic is the probable effect concentration (PEC) of 33 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353603 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Arsenic . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for arsenic is the probable effect concentration (PEC) of 33 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353596 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Arsenic . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for arsenic is the probable effect concentration (PEC) of 33 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353597 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Arsenic . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for arsenic is the probable effect concentration (PEC) of 33 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354065 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Arsenic. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 150 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354067 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Arsenic. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 150 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333477 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Arsenic . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for arsenic is the probable effect concentration (PEC) of 33 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334598 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Arsenic. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 150 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171956 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Atrazine |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354073 | ||||
Pollutant: | Atrazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Atrazine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Atrazine is the USEPA Aquatic Life Benchmark of < 1 ug/L for a nonvascular plant (acute). The benchmark was derived from a 'less-than' value (for example, <1,500) and may underestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-03-24 and 2015-03-24 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354074 | ||||
Pollutant: | Atrazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Atrazine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Atrazine is the USEPA Aquatic Life Benchmark of < 1 ug/L for a nonvascular plant (acute). The benchmark was derived from a 'less-than' value (for example, <1,500) and may underestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-03-24 and 2015-03-24 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354077 | ||||
Pollutant: | Atrazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Atrazine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Atrazine is the USEPA Aquatic Life Benchmark of < 1 ug/L for a nonvascular plant (acute). The benchmark was derived from a 'less-than' value (for example, <1,500) and may underestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-03-24 and 2015-03-24 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156202 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Atroton |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319465 | ||||
Pollutant: | Atroton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Atroton, Prometon, or Secbumeton for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156191 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Azinphos, Ethyl (Ethyl Guthion) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319271 | ||||
Pollutant: | Azinphos, Ethyl (Ethyl Guthion) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Azinphos, methyl, or Azinphos, ethyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156123 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Azinphos-methyl (Guthion) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319272 | ||||
Pollutant: | Azinphos-methyl (Guthion) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Azinphos, methyl, or Azinphos, ethyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128925 | ||||
Pollutant: | Azinphos-methyl (Guthion) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Azinphos Methyl. Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The National Recommended Water Quality Criteria for Azinphos Methyl (Guthion) expressed as a 4-day average for the protection of freshwater aquatic life is a maximum of 0.01 ug/l. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | Data was collected from 23 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
159232 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Bensulide |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354089 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354087 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354090 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354093 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354099 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 334637 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354088 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354092 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354098 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354083 | ||||
Pollutant: | Bensulide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Bensulide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Bensulide is the USEPA Aquatic Life Benchmark of 11 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156098 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Benzo(a)anthracene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353608 | ||||
Pollutant: | Benzo(a)anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Benz(a)anthracene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for benz[a]anthrazene is the probable effect concentration (PEC) of 1050 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319483 | ||||
Pollutant: | Benzo(a)anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Anthracene, Benz(a)Anthracene, or Dibenzo(a,h)Anthracene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 321177 | ||||
Pollutant: | Benzo(a)anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353606 | ||||
Pollutant: | Benzo(a)anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Benz(a)anthracene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for benz[a]anthrazene is the probable effect concentration (PEC) of 1050 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156097 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Benzo(a)pyrene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353613 | ||||
Pollutant: | Benzo(a)pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Benzo(a)pyrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for benzo[a]pyrene is the probable effect concentration (PEC) of 1450 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 4963 | ||||
Pollutant: | Benzo(a)pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were generally collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentration (PEC) of 1450 ug/kg for the protection of freshwater organisms to toxic effects (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected at each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353612 | ||||
Pollutant: | Benzo(a)pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Benzo(a)pyrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for benzo[a]pyrene is the probable effect concentration (PEC) of 1450 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156197 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Benzo(e)Pyrene (4,5-benzopyrene) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319791 | ||||
Pollutant: | Benzo(e)Pyrene (4,5-benzopyrene) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, Biphenyl, or Terbufos for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319469 | ||||
Pollutant: | Benzo(e)Pyrene (4,5-benzopyrene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, or Biphenyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156099 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Benzo[b]fluoranthene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319320 | ||||
Pollutant: | Benzo[b]fluoranthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Benzo(b)Fluoranthene, or Benzo(k)Fluoranthene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156100 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Benzo[g,h,i]perylene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319470 | ||||
Pollutant: | Benzo[g,h,i]perylene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, or Biphenyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319807 | ||||
Pollutant: | Benzo[g,h,i]perylene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, Biphenyl, or Terbufos for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156101 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Benzo[k]fluoranthene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319321 | ||||
Pollutant: | Benzo[k]fluoranthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Benzo(b)Fluoranthene, or Benzo(k)Fluoranthene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156102 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Biphenyl |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319481 | ||||
Pollutant: | Biphenyl | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, or Biphenyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319808 | ||||
Pollutant: | Biphenyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, Biphenyl, or Terbufos for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156171 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Bolstar |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320851 | ||||
Pollutant: | Bolstar | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156103 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Cadmium |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 45992 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Cadmium. Seventeen composites (1 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for cadmium in fish tissue is 2.2 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 127093 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 55 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 55 samples exceeded the water quality standard for Cadmium. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 32 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 333516 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Cadmium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cadmium is the probable effect concentration (PEC) of 4.98 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334667 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 2.2 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354136 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 2.2 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353621 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cadmium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cadmium is the probable effect concentration (PEC) of 4.98 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353637 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Cadmium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cadmium is the probable effect concentration (PEC) of 4.98 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319382 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were generally collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Hardness Dependent Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: Cadmium, Lead, Nickel, and Zinc (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 321178 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5546 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 9 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-three fish fillet samples and 24 whole fish samples were taken at 19 locations in Imperial Valley drains. Twenty-two fish fillet and 16 whole fish sample results could not be used in this assessment because the consituent was not analyzed in the sample. The 1 fillet and 8 whole fish samples that were acceptable were generally collected from 8/1990 through 11/2000 at seven locations. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 3 mg/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach drain, Tokay drain, Barbara Worth drain, Warren drain, Dixie drain No.1, Dixie drain No.3, Dixie drain No.5, Forgetmenot drain, and West Side drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1986 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-three fish fillet samples of carp, tilapia, channel catfish, flathead catfish, spiny soft shell turtle, redbelly tilapia, and Mozambique tilapia were collected. Seven carp fillet composite samples were collected in the years 1985, (2)1986, (3)1990 and 1999. Three carp single fish fillet samples were collected in the years 1986, 1989-90. Two tilapia fillet composite samples were collected in the years 1996, and 2000. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. One flathead catfish single fish fillet sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. Three Mozambique tilapia fillet composite samples were collected in year (3)1986. Twenty-four whole fish composite samples of mosquitofish, and sailfin molly were collected. Fifteen mosquitofish whole fish composite samples were collected in the years 1985, (2)1986, 1989, (2)1990, (4)1991, 1995-96, (3)2000. Nine sailfin molly whole fish composite samples were collected in the years (3)1986, (2)1989, 1991, (2)1992, 2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 353632 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cadmium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cadmium is the probable effect concentration (PEC) of 4.98 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354137 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 2.2 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353641 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Cadmium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cadmium is the probable effect concentration (PEC) of 4.98 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171957 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Carbaryl |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354154 | ||||
Pollutant: | Carbaryl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbaryl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA National Recommended Aquatic Life criteria pursuant to Section 304(a) of the Clean Water Act for Carbaryl is 2.1 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354152 | ||||
Pollutant: | Carbaryl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbaryl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA National Recommended Aquatic Life criteria pursuant to Section 304(a) of the Clean Water Act for Carbaryl is 2.1 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354151 | ||||
Pollutant: | Carbaryl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbaryl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA National Recommended Aquatic Life criteria pursuant to Section 304(a) of the Clean Water Act for Carbaryl is 2.1 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354153 | ||||
Pollutant: | Carbaryl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbaryl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA National Recommended Aquatic Life criteria pursuant to Section 304(a) of the Clean Water Act for Carbaryl is 2.1 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354155 | ||||
Pollutant: | Carbaryl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbaryl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA National Recommended Aquatic Life criteria pursuant to Section 304(a) of the Clean Water Act for Carbaryl is 2.1 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
171958 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Carbofuran |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 0 of the 5 samples exceed the OBJECTIVE/GUIDELINE/CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 0 of 5 samples exceeded the OBJECTIVE/GUIDELINE/CRITERIA and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 354165 | ||||
Pollutant: | Carbofuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbofuran. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for carbofuran is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertibrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354160 | ||||
Pollutant: | Carbofuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbofuran. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for carbofuran is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertibrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354161 | ||||
Pollutant: | Carbofuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbofuran. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for carbofuran is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertibrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354163 | ||||
Pollutant: | Carbofuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbofuran. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for carbofuran is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertibrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354159 | ||||
Pollutant: | Carbofuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Carbofuran. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for carbofuran is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertibrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156180 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Carbophenothion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320901 | ||||
Pollutant: | Carbophenothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156163 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chlorfenvinphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320706 | ||||
Pollutant: | Chlorfenvinphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
159215 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chloride |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this pollutant. Three of the three samples exceed the threshold. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Three of the three samples exceed the threshold and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 334726 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chloride. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-01-08 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354173 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Chloride. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354170 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354182 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chloride. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-01-14 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354180 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 129026 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality standard for Chloride. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
171959 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chlorothalonil |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354191 | ||||
Pollutant: | Chlorothalonil | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorothalonil. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chlorothalonil is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-03-05 and 2013-03-05 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354187 | ||||
Pollutant: | Chlorothalonil | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorothalonil. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chlorothalonil is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-03-05 and 2014-03-05 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354190 | ||||
Pollutant: | Chlorothalonil | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorothalonil. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chlorothalonil is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-03-05 and 2013-03-05 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354186 | ||||
Pollutant: | Chlorothalonil | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorothalonil. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chlorothalonil is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-03-05 and 2013-03-05 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156207 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chlorpyrifos, methyl |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29876; LOE Replacement(s): 320707 The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354237 | ||||
Pollutant: | Chlorpyrifos, methyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos Methyl. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Chlorpyrifos Methyl is the USEPA Aquatic Life Benchmark of 0.085 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354241 | ||||
Pollutant: | Chlorpyrifos, methyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos Methyl. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Chlorpyrifos Methyl is the USEPA Aquatic Life Benchmark of 0.085 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354244 | ||||
Pollutant: | Chlorpyrifos, methyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorpyrifos Methyl. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Chlorpyrifos Methyl is the USEPA Aquatic Life Benchmark of 0.085 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320707 | ||||
Pollutant: | Chlorpyrifos, methyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 129053 | ||||
Pollutant: | Chlorpyrifos, methyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 72 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 72 samples exceeded the water quality standard for Chlorpyrifos Methyl. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Chlorpyrifos Methyl is the USEPA Aquatic Life Benchmark of 0.085 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 49 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156209 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chromium |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354250 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chromium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved chromium (III) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 180 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-10-15 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320985 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353662 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chromium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353659 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Chromium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354247 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Chromium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved chromium (III) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 180 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334796 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Chromium. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved chromium (III) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 180 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333555 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Chromium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353665 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Chromium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353650 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chromium . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319307 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 1724 ug/l Chromium, 0.24 ug/l Dieldrin, and 0.086 ug/l Endrin (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
69929 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chromium (total) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the section 303(d) list under section 3.1 and 3.6 of the Listing Policy.
Under section 3.1 a single line of evidence is necessary to assess listing status. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants sediment, and pollutant concentrations in sediment must be associated with sediment toxicity to justify adding that pollutant to the CWA section 303(d) List. Two lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the objectives. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the samples exceed the objectives. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 127595 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 56 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 56 samples exceeded the water quality standard for Chromium. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 32 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156106 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Chrysene (C1-C4) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353675 | ||||
Pollutant: | Chrysene (C1-C4) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chrysene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chrysene is the probable effect concentration (PEC) of 1290 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353670 | ||||
Pollutant: | Chrysene (C1-C4) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chrysene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chrysene is the probable effect concentration (PEC) of 1290 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353671 | ||||
Pollutant: | Chrysene (C1-C4) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chrysene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for chrysene is the probable effect concentration (PEC) of 1290 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320986 | ||||
Pollutant: | Chrysene (C1-C4) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
170780 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Cinerin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | LOEs 128113 and 127353 are reassessed and replaced by LOE 355456. Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355456 | ||||
Pollutant: | Cinerin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cinerin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cinerin is the USEPA Aquatic Life Benchmark of 0.04 ug/L for freshwater invertebrates (chronic) and is the sum of cinerin-1 and cinerin-2. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156172 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Ciodrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320864 | ||||
Pollutant: | Ciodrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171973 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Clothianidin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354267 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354261 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354259 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354262 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354265 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354266 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354264 | ||||
Pollutant: | Clothianidin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Clothianidin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Clothianidin is the USEPA Aquatic Life Benchmark of 1.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156107 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Copper |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 4944 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were generally collected and analyzed twice, in May and October of 2002 at 3 Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule Hardness Dependent Criterion Maximum Concentration (CMC) for the protection of freshwater aquatic life uses (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5073 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the USFWS Biological Effects Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | United State Fish and Wildlife Service (USFWS) Biological Effects Criteria of 15 mg/l for the protection of aquatic life uses (USDOI, 1998). | ||||
Guideline Reference: | Guidelines for Interpretation of the Biological Effect of Selected Constituents in Biota, Water, and Sediment. US Department of Interior report. | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 127120 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 57 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 57 samples exceeded the water quality standard for Copper. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 33 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320987 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353696 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Copper . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for copper is the probable effect concentration (PEC) of 149 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353676 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Copper . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for copper is the probable effect concentration (PEC) of 149 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354279 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Copper. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 9 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353693 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Copper . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for copper is the probable effect concentration (PEC) of 149 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353682 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Copper . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for copper is the probable effect concentration (PEC) of 149 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354269 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Copper. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 9 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334863 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Copper. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 9 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333596 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Copper . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for copper is the probable effect concentration (PEC) of 149 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
102629 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Coumaphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1, a single line(s) of evidence is necessary to assess listing status.
One line of evidence is available in the administrative record to assess this pollutant. Zero of zero samples exceed the USEPA Aquatic Life Benchmark for an invertebrate (chronic). Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5 Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of zero samples exceed the USEPA Aquatic Life Benchmark for an invertebrate (chronic). Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5 This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 127998 | ||||
Pollutant: | Coumaphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Coumaphos. Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Coumaphos is the USEPA Aquatic Life Benchmark of 0.0337 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | Data was collected from 23 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156164 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Cuomaphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320708 | ||||
Pollutant: | Cuomaphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
159228 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Cyfluthrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.6 of the Listing Policy. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355519 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 351681 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355515 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354293 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354301 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355500 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355482 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354289 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355496 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354303 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355469 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355507 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355477 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355485 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355489 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354300 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355494 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355499 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354309 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355506 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354291 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354296 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355492 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354286 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355483 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354295 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354302 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355513 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355520 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355464 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355467 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354287 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355466 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355474 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355518 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355470 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353700 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyfluthrin, total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cyfluthrin is the median lethal concentration (LC50) of 1.1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.1 ug/g is the geometric mean of LC50 values for cyfluthrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353701 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyfluthrin, total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cyfluthrin is the median lethal concentration (LC50) of 1.1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.1 ug/g is the geometric mean of LC50 values for cyfluthrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353698 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyfluthrin, total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cyfluthrin is the median lethal concentration (LC50) of 1.1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.1 ug/g is the geometric mean of LC50 values for cyfluthrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355484 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355498 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125821 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 25 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 25 samples exceeded the evaluation guideline for Cyfluthrin, total. Although a total of 26 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cyfluthrin is the median lethal concentration (LC50) of 1.1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.1 ug/g is the geometric mean of LC50 values for cyfluthrin from Amweg et al. (2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 26 (Station Codes: 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 334885 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355472 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cyfluthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cyfluthrin is 0.2 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cyfluthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cyfluthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
159229 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Cyhalothrin, Lambda |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.6 of the Listing Policy. One sample exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 355939 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355948 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355919 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355923 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354774 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355938 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355912 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354750 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354773 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Lambda-cyhalothrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355926 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355901 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355907 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355909 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355943 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354755 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353705 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyhalothrin, Total lambda- . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lambda-cyhalothrin is the median lethal concentration (LC50) of 0.44 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.44 ug/g is the geometric mean of LC50 values for lambda-cyhalothrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355934 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355931 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355937 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355928 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354768 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Lambda-cyhalothrin. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 125526 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 24 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 24 samples exceeded the evaluation guideline for Cyhalothrin, Total lambda-. Although a total of 25 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lambda-cyhalothrin is the median lethal concentration (LC50) of 0.44 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.44 ug/g is the geometric mean of LC50 values for lambda-cyhalothrin from Amweg et al. (2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 25 (Station Codes: 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OLANDR, 723OSAGED, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 335427 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 351842 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355940 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355910 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355922 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353703 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyhalothrin, Total lambda- . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lambda-cyhalothrin is the median lethal concentration (LC50) of 0.44 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.44 ug/g is the geometric mean of LC50 values for lambda-cyhalothrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354759 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Lambda-cyhalothrin. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354765 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Lambda-cyhalothrin. Although a total of 3 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPVD69). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
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LOE ID: | 353704 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyhalothrin, Total lambda- . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lambda-cyhalothrin is the median lethal concentration (LC50) of 0.44 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.44 ug/g is the geometric mean of LC50 values for lambda-cyhalothrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355927 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355932 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 355947 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355905 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 354751 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
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LOE ID: | 354754 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
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LOE ID: | 354767 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355936 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 355946 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355929 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355914 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Lambda-cyhalothrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354758 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Lambda-cyhalothrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
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LOE ID: | 354763 | ||||
Pollutant: | Cyhalothrin, Lambda | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 4 of the 4 samples exceeded the water quality threshold for Lambda-cyhalothrin. Although a total of 7 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for lambda-cyhalothrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of lambda-cyhalothrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Lambda-cyhalothrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
172119 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | DDD (Dichlorodiphenyldichloroethane) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 353712 | ||||
Pollutant: | DDD (Dichlorodiphenyldichloroethane) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for DDD (Dichlorodiphenyldichloroethane) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the sum of DDD is the probable effect concentration (PEC) of 28 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156108 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dacthal |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29878, 30057; LOE Replacement(s): 320865, 319453 The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 127379 | ||||
Pollutant: | Dacthal | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 32 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 32 samples exceeded the water quality standard for Dacthal. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dacthal is the USEPA Aquatic Life Benchmark of > 11000 ug/L for a nonvascular plant (acute) and vascular plant (acute). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319453 | ||||
Pollutant: | Dacthal | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Dacthal, Mirex, or Oxadiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128754 | ||||
Pollutant: | Dacthal | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Dacthal. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dacthal is the USEPA Aquatic Life Benchmark of > 11000 ug/L for a nonvascular plant (acute) and vascular plant (acute). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320865 | ||||
Pollutant: | Dacthal | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
169360 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Deltamethrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355632 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355640 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355595 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355596 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355597 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355598 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355604 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355613 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 351731 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 348845 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program  | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357546 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357541 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723KDRAIN (K Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357567 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357547 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357559 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SCENTD (South Central Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357552 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357565 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OSAGED (Osage Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357575 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357569 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357555 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357574 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357572 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723EDRAIN (E Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357543 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357566 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357542 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357550 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VERDED (Verde Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357562 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357556 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BDRAIN (B Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357570 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357540 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357577 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357545 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357576 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357573 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 355637 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355642 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355624 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355634 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355590 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355607 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355620 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354365 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355622 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355638 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355643 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355619 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353727 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355625 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354368 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355603 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353726 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354363 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354366 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355623 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355608 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355635 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355599 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355600 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Deltamethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the USEPA Aquatic Life Benchmark of 0.000026 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353730 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156110 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Demeton s |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320866 | ||||
Pollutant: | Demeton s | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171948 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Desethyl-Atrazine |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354378 | ||||
Pollutant: | Desethyl-Atrazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Desethyl-Atrazine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for desethyl-atrazine is the USEPA Aquatic Life Benchmark of 1000 ug/L for a nonvascular plant (acute) for triazine DEA degradate. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-03-24 and 2015-03-24 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354381 | ||||
Pollutant: | Desethyl-Atrazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Desethyl-Atrazine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for desethyl-atrazine is the USEPA Aquatic Life Benchmark of 1000 ug/L for a nonvascular plant (acute) for triazine DEA degradate. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-03-24 and 2015-03-24 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354377 | ||||
Pollutant: | Desethyl-Atrazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Desethyl-Atrazine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for desethyl-atrazine is the USEPA Aquatic Life Benchmark of 1000 ug/L for a nonvascular plant (acute) for triazine DEA degradate. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-03-24 and 2015-03-24 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156111 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Diazinon |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. The number of measured exceedances is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicant pollutants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that this water segment-pollutant combination should not be placed on the CWA section 303(d) List. Refer to the lines of evidence in this fact sheet for the data and information, sample counts and exceedances, quality assurance documentation, beneficial uses, and water quality objectives or numeric evaluation guidelines relied upon for this decision. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 354408 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354387 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354407 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354383 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 46167 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Diazinon. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for diazinon in fish tissue is 1,500 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5532 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value. (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 300 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 127143 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 72 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 72 samples exceeded the water quality standard for Diazinon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 49 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319647 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aldrin, Chlorpyrifos, Diazinon, or Toxaphene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354415 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354409 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354396 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354412 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354397 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354403 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354395 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354404 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354414 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 334998 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Diazinon. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 4952 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains. Of these total samples, none exceeded the CDFG Hazardous Assessment Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | California Department of Fish and Game (CDFG) Hazardous Assessment Criteria of 0.16 ug/l for the protection of aquatic life uses (Siepmann and Finlayson, 2000). | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance and Quality Control for the sampling and analysis of this study was conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156112 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dibenz[a,h]anthracene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319484 | ||||
Pollutant: | Dibenz[a,h]anthracene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Anthracene, Benz(a)Anthracene, or Dibenzo(a,h)Anthracene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156181 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dichlofenthion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320902 | ||||
Pollutant: | Dichlofenthion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156113 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dichlorobenzophenone |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319400 | ||||
Pollutant: | Dichlorobenzophenone | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthene, pp-DCBP, or Indeno(1,2,3,c,d)Pyrene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156114 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dichlorvos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354423 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354432 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 320878 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354430 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354424 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354431 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354427 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156165 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dicrotophos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320709 | ||||
Pollutant: | Dicrotophos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156158 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dimethoate |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29878; LOE Replacement(s): 320879 The number of measured exceedances is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicant pollutants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that this water segment-pollutant combination should not be placed on the CWA section 303(d) List. Refer to the lines of evidence in this fact sheet for the data and information, sample counts and exceedances, quality assurance documentation, beneficial uses, and water quality objectives or numeric evaluation guidelines relied upon for this decision. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 354456 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354467 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 320879 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128135 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 44 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 2 of 44 samples exceeded the water quality standard for Dimethoate. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354450 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 8 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 335050 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354473 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354458 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 2 of 8 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354465 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354469 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354457 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 2 of 8 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354472 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 7 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354464 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dimethoate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
171954 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dinotefuran |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354475 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354482 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354481 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354477 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354484 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354483 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354479 | ||||
Pollutant: | Dinotefuran | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Dinotefuran. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Dinotefuran is the USEPA Aquatic Life Benchmark of > 6360 ug/L for a fish (chronic). The benchmark was derived from a 'greater-than' value (for example, > 265,000) and may overestimate toxicity. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156208 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dioxathion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320903 | ||||
Pollutant: | Dioxathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156117 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dyfonate (Fonofos or Fonophos) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354665 | ||||
Pollutant: | Dyfonate (Fonofos or Fonophos) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fonofos. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fonofos is the maximum acceptable toxicant concentration (MATC) of 0.45 ug/L. The MATC is calculated as the geometric mean of the lowest observed effect concentration (LOEC) of 0.64 ug/L and the no observed effect concentration (NOEC) of 0.31 ug/L, as determined in a 21 day toxicity study with the water flea, Daphnia magna. Threshold values (LOEC and NOEC) are from USEPA Office of Pesticide Programs Ecotoxicity database. | ||||
Guideline Reference: | OPP Pesticide Ecotoxicity Database. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354669 | ||||
Pollutant: | Dyfonate (Fonofos or Fonophos) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fonofos. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fonofos is the maximum acceptable toxicant concentration (MATC) of 0.45 ug/L. The MATC is calculated as the geometric mean of the lowest observed effect concentration (LOEC) of 0.64 ug/L and the no observed effect concentration (NOEC) of 0.31 ug/L, as determined in a 21 day toxicity study with the water flea, Daphnia magna. Threshold values (LOEC and NOEC) are from USEPA Office of Pesticide Programs Ecotoxicity database. | ||||
Guideline Reference: | OPP Pesticide Ecotoxicity Database. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354667 | ||||
Pollutant: | Dyfonate (Fonofos or Fonophos) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fonofos. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fonofos is the maximum acceptable toxicant concentration (MATC) of 0.45 ug/L. The MATC is calculated as the geometric mean of the lowest observed effect concentration (LOEC) of 0.64 ug/L and the no observed effect concentration (NOEC) of 0.31 ug/L, as determined in a 21 day toxicity study with the water flea, Daphnia magna. Threshold values (LOEC and NOEC) are from USEPA Office of Pesticide Programs Ecotoxicity database. | ||||
Guideline Reference: | OPP Pesticide Ecotoxicity Database. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320720 | ||||
Pollutant: | Dyfonate (Fonofos or Fonophos) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156118 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Endosulfan sulfate |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319496 | ||||
Pollutant: | Endosulfan sulfate | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Endosulfan 1, Endosulfan 2, or Endosulfan Sulfate for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156119 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Endrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 127347 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Endrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.036 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126524 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 7 samples exceeded the water quality standard for Endrin. Data were collected for 6 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for endrin in fish tissue is 660 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723BARWDR, 723PEACHD, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126440 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 10 samples exceeded the water quality standard for Endrin. Data were collected for 6 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for endrin in fish tissue is 660 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723NRGNDN, 723NRFGDN, 723RI3DRN, 723SCNTDR, 723CNTDRN, 723BARWDR, 723OLANDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46184 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Endrin. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for endrin in fish tissue is 660 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353738 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Endrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for endrin is the probable effect concentration (PEC) of 207 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354529 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Endrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The endrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.036 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 46197 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Endrin. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Endrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126417 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 7 samples exceeded the water quality standard for Endrin. Data were collected for 6 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Endrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723BARWDR, 723PEACHD, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5534 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 1000 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 5615 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 126439 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 10 samples exceeded the water quality standard for Endrin. Data were collected for 6 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Endrin concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723NRGNDN, 723NRFGDN, 723RI3DRN, 723SCNTDR, 723CNTDRN, 723BARWDR, 723OLANDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127191 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Endrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.036 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319309 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 1724 ug/l Chromium, 0.24 ug/l Dieldrin, and 0.086 ug/l Endrin (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320998 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156173 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Endrin Ketone |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320881 | ||||
Pollutant: | Endrin Ketone | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171968 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Ethalfluralin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 0 of the 20 samples exceed the OBJECTIVE/GUIDELINE/CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 0 of 20 samples exceeded the OBJECTIVE/GUIDELINE/CRITERIA and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 354568 | ||||
Pollutant: | Ethalfluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ethalfluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Ethalfluralin is the USEPA Aquatic Life Benchmark of 0.4 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354571 | ||||
Pollutant: | Ethalfluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Ethalfluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Ethalfluralin is the USEPA Aquatic Life Benchmark of 0.4 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354573 | ||||
Pollutant: | Ethalfluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for Ethalfluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Ethalfluralin is the USEPA Aquatic Life Benchmark of 0.4 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354560 | ||||
Pollutant: | Ethalfluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Ethalfluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Ethalfluralin is the USEPA Aquatic Life Benchmark of 0.4 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354566 | ||||
Pollutant: | Ethalfluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Ethalfluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Ethalfluralin is the USEPA Aquatic Life Benchmark of 0.4 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156153 |
Region 7 |
Imperial Valley Drains |
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Pollutant: | Ethion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
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LOE ID: | 355734 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355751 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 351783 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 5541 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 2000 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
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LOE ID: | 320916 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
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LOE ID: | 355783 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355791 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MAGDRN (Magnolia Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355787 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355788 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355781 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 354589 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355742 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355765 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355773 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354587 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355798 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDRN (Verde Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355767 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355763 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ROSDRN (Rose Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355764 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-09 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355774 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARNDRN (N Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355754 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355778 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723HLVLDR (Holtville Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355753 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCNTDR (South Central Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355752 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355760 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355780 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355782 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355772 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355761 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354581 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355777 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355771 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355730 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NETDRN (Nettle Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355786 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355755 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723RICEDR (Rice Drain at Headgate 101). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355756 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355736 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355750 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355733 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723RI3DRN (Rice 3 Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355796 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355759 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355766 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARCDRN (C Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355775 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARIDRN (I Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355779 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355731 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355793 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355762 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRDRN (Spruce Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355789 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723TI2DRN (Timothy 2 Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355739 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355743 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MUNDRN (Munyon Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355732 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355749 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156159 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Ethoprop |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 128733 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 72 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 72 samples exceeded the water quality standard for Ethoprop. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 49 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320893 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354600 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354590 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354610 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354612 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354606 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354603 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354609 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354615 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354611 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ethoprop. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156174 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Famphur |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320894 | ||||
Pollutant: | Famphur | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171971 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fenamiphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354620 | ||||
Pollutant: | Fenamiphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenamiphos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenamiphos is the USEPA Aquatic Life Benchmark of 0.12 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354623 | ||||
Pollutant: | Fenamiphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenamiphos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenamiphos is the USEPA Aquatic Life Benchmark of 0.12 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354617 | ||||
Pollutant: | Fenamiphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenamiphos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenamiphos is the USEPA Aquatic Life Benchmark of 0.12 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354621 | ||||
Pollutant: | Fenamiphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenamiphos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenamiphos is the USEPA Aquatic Life Benchmark of 0.12 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354619 | ||||
Pollutant: | Fenamiphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenamiphos. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenamiphos is the USEPA Aquatic Life Benchmark of 0.12 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156166 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fenchlorphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320721 | ||||
Pollutant: | Fenchlorphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156182 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fenitrothion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 128603 | ||||
Pollutant: | Fenitrothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 72 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 72 samples exceeded the water quality standard for Fenitrothion. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenitrothion is the USEPA Aquatic Life Benchmark of 0.087 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 49 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320917 | ||||
Pollutant: | Fenitrothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354635 | ||||
Pollutant: | Fenitrothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenitrothion. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenitrothion is the USEPA Aquatic Life Benchmark of 0.087 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354628 | ||||
Pollutant: | Fenitrothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenitrothion. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenitrothion is the USEPA Aquatic Life Benchmark of 0.087 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354634 | ||||
Pollutant: | Fenitrothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenitrothion. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenitrothion is the USEPA Aquatic Life Benchmark of 0.087 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
170655 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fenpropathrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 and 3.6 of the Listing Policy. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354638 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Fenpropathrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355799 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355822 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353747 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fenpropathrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenpropathrin is the median lethal concentration (LC50) of 1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1 ug/g is the geometric mean of LC50 values for fenpropathrin from Ding et al., ( 2011). | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355847 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355843 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355803 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 351812 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125785 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 26 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 26 samples exceeded the evaluation guideline for Fenpropathrin . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenpropathrin is the median lethal concentration (LC50) of 1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1 ug/g is the geometric mean of LC50 values for fenpropathrin from Ding et al. ( 2011). | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Spatial Representation: | Data were collected from 26 (Station Codes: 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 355852 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355845 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355849 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353744 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fenpropathrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenpropathrin is the median lethal concentration (LC50) of 1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1 ug/g is the geometric mean of LC50 values for fenpropathrin from Ding et al., ( 2011). | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354657 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 4 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-03-22 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355815 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355832 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355825 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355807 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355818 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355829 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355820 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355836 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354651 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353746 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fenpropathrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fenpropathrin is the median lethal concentration (LC50) of 1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1 ug/g is the geometric mean of LC50 values for fenpropathrin from Ding et al., ( 2011). | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355805 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355809 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355835 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355839 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355840 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355838 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354650 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354652 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354649 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 4 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-03-22 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355826 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355814 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355806 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355834 | ||||
Pollutant: | Fenpropathrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenpropathrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenpropathrin is the USEPA Aquatic Life Benchmark of 0.0015 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156183 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fensulfothion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320918 | ||||
Pollutant: | Fensulfothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156184 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fenthion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29872; LOE Replacement(s): 320919 |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 127939 | ||||
Pollutant: | Fenthion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenthion. Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Fenthion is the USEPA Aquatic Life Benchmark of 0.013 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | Data was collected from 23 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320919 | ||||
Pollutant: | Fenthion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156121 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fluoranthene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353749 | ||||
Pollutant: | Fluoranthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fluoranthene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fluoranthene is the probable effect concentration (PEC) of 2230 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333618 | ||||
Pollutant: | Fluoranthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fluoranthene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fluoranthene is the probable effect concentration (PEC) of 2230 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-08 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320999 | ||||
Pollutant: | Fluoranthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353752 | ||||
Pollutant: | Fluoranthene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fluoranthene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fluoranthene is the probable effect concentration (PEC) of 2230 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156122 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Fluorene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353759 | ||||
Pollutant: | Fluorene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fluorene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fluorene is the probable effect concentration (PEC) for Fluorene is 536 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353760 | ||||
Pollutant: | Fluorene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Fluorene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for fluorene is the probable effect concentration (PEC) for Fluorene is 536 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321009 | ||||
Pollutant: | Fluorene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156124 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Heptachlor |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 128077 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Heptachlor. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Heptachlor criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5625 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 126483 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Heptachlor. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Heptachlor concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723BARWDR, 723PEACHD, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126231 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 11 samples exceeded the water quality standard for Heptachlor. Data were collected for 7 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Heptachlor concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723BARWDR, 723NRFGDN, 723SCNTDR, 723NRGNDN, 723RI3DRN, 723CNTDRN, 723OLANDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354697 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Heptachlor. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The heptachlor criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 127489 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Heptachlor. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Heptachlor criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319322 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Heptachlor, or Heptachlor Epoxide for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320048 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 46200 | ||||
Pollutant: | Heptachlor | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Heptachlor. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Heptachlor concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156125 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Heptachlor epoxide |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 126611 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 15 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 15 samples exceeded the water quality standard for Heptachlor Epoxide. Data were collected for 11 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Heptachlor Epoxide concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723PEACHD, 723NRFGDN, 723BARWDR, 723CNTDRN, 723OLANDR, 723NRGNDN, 723SCNTDR, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126152 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Heptachlor Epoxide. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Heptachlor Epoxide concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126610 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Waterboard staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: Zero of Zero samples exceeded the water quality standard for Heptachlor Epoxide. Although data was collected for 11 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite), all 15 sample(s) had to be thrown out due to quantitation issues. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for heptachlor epoxide in fish tissue is 0.93 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 1999) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Public Health Goal for Heptachlor and Heptachlor Epoxide in Drinking Water | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723PEACHD, 723NRFGDN, 723BARWDR, 723CNTDRN, 723OLANDR, 723NRGNDN, 723SCNTDR, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126497 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Waterboard staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows: Zero of Zero samples exceeded the water quality standard for Heptachlor Epoxide. Although data was collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite), all 8 sample(s) had to be thrown out due to quantitation issues. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for heptachlor epoxide in fish tissue is 0.93 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 1999) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Public Health Goal for Heptachlor and Heptachlor Epoxide in Drinking Water | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 46213 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Heptachlor epoxide. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Eleven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for heptachlor epoxide in fish tissue is 0.93 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Public Health Goal for Heptachlor and Heptachlor Epoxide in Drinking Water | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 46214 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Heptachlor epoxide. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Heptachlor Epoxide concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354709 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Heptachlor Epoxide. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The heptachlor epoxide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319323 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Heptachlor, or Heptachlor Epoxide for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320049 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126893 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Heptachlor Epoxide. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Heptachlor Epoxide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127802 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Heptachlor Epoxide. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Heptachlor Epoxide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 5634 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 5542 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 9 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. Seventeen fish fillet and 14 whole fish sample results could not be used in this assessment because the sample results were non-detect and the detection limit was above the criteria concentrations. The 4 fish fillet samples and 5 whole fish samples that were acceptable were generally collected from 12/1999 through 11/2000 at five locations. Of these total samples, none OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 4 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
DECISION ID |
156126 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Hexachlorobenzene/ HCB |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 319617 | ||||
Pollutant: | Hexachlorobenzene/ HCB | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of alpha-HCH, beta-HCH, Hexachlorobenzene, or Methoxychlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 5543 | ||||
Pollutant: | Hexachlorobenzene/ HCB | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 20 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies a Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 46215 | ||||
Pollutant: | Hexachlorobenzene/ HCB | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Hexachlorobenzene. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for hexachlorobenzene in fish tissue is 2.8 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126355 | ||||
Pollutant: | Hexachlorobenzene/ HCB | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for Hexachlorobenzene. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for hexachlorobenzene in fish tissue is 2.8 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 2005) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723RICEDR, 723PEACHD, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126377 | ||||
Pollutant: | Hexachlorobenzene/ HCB | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 11 samples exceeded the water quality standard for Hexachlorobenzene. Data were collected for 7 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for hexachlorobenzene in fish tissue is 2.8 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 2005) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723BARWDR, 723CNTDRN, 723NRFGDN, 723NRGNDN, 723RI3DRN, 723SCNTDR, 723OLANDR. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156206 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Hydroxide |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319275 | ||||
Pollutant: | Hydroxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Three water quality samples were collected and analyzed in October of 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for Hydroxide, or Pheophytin a for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Three water samples were collected. Water samples were collected from all three sampling locations and analyzed in May of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156128 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Indeno[1,2,3-cd]pyrene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319401 | ||||
Pollutant: | Indeno[1,2,3-cd]pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Acenaphthene, pp-DCBP, or Indeno(1,2,3,c,d)Pyrene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
170781 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Jasmolin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 355894 | ||||
Pollutant: | Jasmolin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Jasmolin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for jasmolin is the USEPA Aquatic Life Benchmark of 0.04 ug/L for freshwater invertebrates (chronic) and is the sum of jasmolin-1 and jasmolin-2. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156129 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Lead |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 353776 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Lead . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lead is the probable effect concentration (PEC) of 128 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353766 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Lead . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lead is the probable effect concentration (PEC) of 128 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354785 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Lead. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 2.5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-10-16 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321010 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319383 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were generally collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Hardness Dependent Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: Cadmium, Lead, Nickel, and Zinc (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 335461 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Lead. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 2.5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333650 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Lead . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lead is the probable effect concentration (PEC) of 128 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353762 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Lead . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lead is the probable effect concentration (PEC) of 128 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353775 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Lead . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lead is the probable effect concentration (PEC) of 128 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354782 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Lead. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 2.5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 129064 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 55 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 55 samples exceeded the water quality standard for Lead. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 31 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAMPAD, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156167 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Leptophos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320722 | ||||
Pollutant: | Leptophos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156130 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 46198 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for HCH, gamma. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for lindane in fish tissue is 4.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128307 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for HCH, gamma-. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The gamma-BHC (Lindane) criterion maximum concentration to protect aquatic life in freshwater is 0.95 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 129081 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for HCH, gamma-. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The gamma-BHC (Lindane) criterion maximum concentration to protect aquatic life in freshwater is 0.95 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 6742 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 5544 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the OEHHA Screening Value (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Office of Environmental Health Hazard Assessment (OEHHA) Screening Value of 30 ug/kg to protect human health when consuming fish (OEHHA, 1999). | ||||
Guideline Reference: | Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 353761 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for HCH, gamma- . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for lindane is the probable effect concentration (PEC) for Lindane is 4.99 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321011 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 46199 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for HCH, gamma. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Composites collected at the same time on the same day for the same species were averaged in accordance with the listing policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Lindane concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126223 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for HCH, gamma-. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Lindane concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126183 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 16 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 16 samples exceeded the water quality standard for HCH, gamma-. Data were collected for 12 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | National Academy of Science guidelines (NAS 1972) establish a maximum Lindane concentration of 100 ug/Kg (wet weight) in tissue samples for protection of aquatic life from bioaccumulation of toxic substances. | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723OLANDR, 723PEACHD, 723NRGNDN, 723SCNTDR, 723CNTDRN, 723NRFGDN, 723BARWDR, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126354 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 8 samples exceeded the water quality standard for HCH, gamma-. Data were collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for lindane in fish tissue is 4.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 2005) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723RICEDR, 723BARWDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 126184 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 16 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows 0 of the 16 samples exceeded the water quality standard for HCH, gamma-. Data were collected for 12 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Mosquitofish each composed of 15 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Mosquitofish each composed of 60 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Mosquitofish each composed of 7 fish per composite, 1 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 37 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for lindane in fish tissue is 4.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 2005) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values. | ||||
Spatial Representation: | Data was collected from 8 station(s) with the station code(s): 723OLANDR, 723PEACHD, 723NRGNDN, 723SCNTDR, 723CNTDRN, 723NRFGDN, 723BARWDR, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354681 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for HCH, gamma-. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The gamma-BHC (Lindane, gamma-HCH) criterion maximum concentration to protect aquatic life in freshwater is 0.95 ug/L. (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156131 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Malathion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29872 ; LOE Replacement(s): 320931 |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354800 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Malathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354820 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Malathion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354801 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 2 of the 6 samples exceeded the water quality threshold for Malathion. Although a total of 8 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPVD69). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354788 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Malathion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354796 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Malathion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354789 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 5 samples exceeded the water quality threshold for Malathion. Although a total of 7 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354823 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 5 samples exceeded the water quality threshold for Malathion. Although a total of 8 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPHV10). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354787 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Malathion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320931 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128461 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Malathion. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | Data was collected from 49 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354803 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Malathion. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354802 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Malathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354786 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 5 samples exceeded the water quality threshold for Malathion. Although a total of 8 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPMV61). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354808 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Malathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354818 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Malathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 335495 | ||||
Pollutant: | Malathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Malathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The UC Davis Criteria for Malathion for the protection of aquatic organisms is a 4 day average of 0.028 ug/L. | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
DECISION ID |
156132 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Manganese |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319385 | ||||
Pollutant: | Manganese | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aluminum, Manganese, or Silver for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
172118 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Mercury |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | "This pollutant is being considered for placement on the section 303(d) list under sections 3.1, 3.5 and 3.6 of the Listing Policy. Under sections 3.1 and 3.5 a single line of evidence is necessary to assess listing status. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants sediment, and pollutant concentrations in sediment must be associated with sediment toxicity to justify adding that pollutant to the CWA section 303(d) List. Thirteen lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. LOE 46228 was re-assessed using the new objective and was not included in the final use rating. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. LOE 12737 for COMM water data was retired due to undesignated COMM. LOE 5108 is replaced with LOE 321021 due to a multipollutant LOE being split into LOEs for individual pollutants. The following LOEs were replaced because of reassessment of previous data due to adoption of the statewide mercury objectives: 1) LOE 5565 is replaced with LOEs 357755 and 357759 2) LOE 46228 is replaced with LOEs 133043 and 133339 This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of three TL4 fish tissue samples exceeded the Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing (CDFW). Zero of four TL4 fish tissue samples exceeded the Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat (200-500 mm). Zero of one samples exceeded the Statewide Prey Fish Water Quality Objective for the protection of Wildlife Habitat (50-150 mm) for the Wildlife Habitat beneficial use assessed. None of 17 sediment sample exceeded the sediment quality guideline. None of three dissolved and one total water samples exceeded the criteria. These do not exceed the allowable frequency of the Listing Policy in Table 3.1. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met." |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 133336 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 2 fish were aggregated into 1 annual averages, which consisted of 1 fish species (1 composite(s) of Common Carp each composed of 2 fish per composite). | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-02 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 132970 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 7 fish were aggregated into 1 annual averages, which consisted of 2 fish species (1 composite(s) of Channel Catfish each composed of 3 fish per composite, 1 composite(s) of Channel Catfish each composed of 4 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723NROTWM. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-09 and 2011-11-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133249 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 7 fish were aggregated into 1 annual averages, which consisted of 2 fish species (1 composite(s) of Channel Catfish each composed of 4 fish per composite, 1 composite(s) of Channel Catfish each composed of 3 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723NROTWM. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-09 and 2011-11-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133043 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 17 fish were aggregated into 2 annual averages, which consisted of 2 fish species (5 composite(s) of Channel Catfish each composed of 3 fish per composite, 1 composite(s) of Channel Catfish each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 2 station(s) with the station code(s): 723GRSDRN, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 132890 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 7 fish were aggregated into 1 annual averages, which consisted of 2 fish species (1 composite(s) of Channel Catfish each composed of 4 fish per composite, 1 composite(s) of Channel Catfish each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723NROTWM. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-09 and 2011-11-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133054 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 17 fish were aggregated into 2 annual averages, which consisted of 2 fish species (5 composite(s) of Channel Catfish each composed of 3 fish per composite, 1 composite(s) of Channel Catfish each composed of 2 fish per composite). | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 2 station(s) with the station code(s): 723CNTDRN, 723GRSDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 133277 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 19 fish were aggregated into 6 annual averages, which consisted of 4 fish species (1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Common Carp each composed of 2 fish per composite, 2 composite(s) of Common Carp each composed of 3 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 5 station(s) with the station code(s): 723OLANDR, 723NROTWM, 723NRFGDN, 723RI3DRN, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-04-04 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133145 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 19 fish were aggregated into 6 annual averages, which consisted of 4 fish species (1 composite(s) of Common Carp each composed of 2 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 2 composite(s) of Common Carp each composed of 3 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 5 station(s) with the station code(s): 723NROTWM, 723OLANDR, 723NRFGDN, 723CNTDRN, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-04-04 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133004 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 2 fish were aggregated into 1 annual averages, which consisted of 1 fish species (1 composite(s) of Common Carp each composed of 2 fish per composite). | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-02 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 132912 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 2 fish were aggregated into 1 annual averages, which consisted of 1 fish species (1 composite(s) of Common Carp each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-02 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 133140 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 19 fish were aggregated into 6 annual averages, which consisted of 4 fish species (2 composite(s) of Common Carp each composed of 3 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Common Carp each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 5 station(s) with the station code(s): 723NROTWM, 723OLANDR, 723NRFGDN, 723RI3DRN, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-04-04 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357759 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Toxic Substances Monitoring Program data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 2 fish were aggregated into 1 annual averages, which consisted of 1 fish species (1 composite(s) of Channel Catfish each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): Pumice Drain. | ||||
Temporal Representation: | Data for this line of evidence were collected between 1990-11-20 and 1990-11-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 357755 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Toxic Substances Monitoring Program data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 2 fish were aggregated into 1 annual averages, which consisted of 1 fish species (1 composite(s) of Channel Catfish each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of the Commercial and Sport Fishing beneficial comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): Pumice Drain. | ||||
Temporal Representation: | Data for this line of evidence were collected between 1990-11-20 and 1990-11-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
|
|||||
LOE ID: | 354835 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentration (4-day average concentrations) for freshwater aquatic organisms exposure to total mercury is 0.77 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321021 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 354829 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentration (4-day average concentrations) for freshwater aquatic organisms exposure to total mercury is 0.77 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354831 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentration (4-day average concentrations) for freshwater aquatic organisms exposure to total mercury is 0.77 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354834 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentration (4-day average concentrations) for freshwater aquatic organisms exposure to total mercury is 0.77 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125454 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 12 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 12 samples exceeded the evaluation guideline for Mercury . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Mercury from MacDonald et al., 2000a which states that the probable effect concentration for Mercury is 1.06 mg/kg. (dw = Dry Weight) | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 12 (Station Codes: 723CENTD2, 723CTD3MA, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723SCENTD, 723TRI12D, 723UADGUN, 723VERDED). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133339 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 17 fish were aggregated into 2 annual averages, which consisted of 2 fish species (1 composite(s) of Channel Catfish each composed of 2 fish per composite, 5 composite(s) of Channel Catfish each composed of 3 fish per composite). | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 2 station(s) with the station code(s): 723GRSDRN, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 132967 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 7 fish were aggregated into 1 annual averages, which consisted of 2 fish species (1 composite(s) of Channel Catfish each composed of 4 fish per composite, 1 composite(s) of Channel Catfish each composed of 3 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723NROTWM. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-09 and 2011-11-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133341 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. All fish collected within the same calendar year with a reported length of 50-150 mm were averaged into a single sample, independent of species or trophic level, for comparison with the objective. This LOE consists of a total of 7 fish, which were aggregated into 1 annual averages, consisting of 1 fish species (1 composite(s) of Mosquitofish each composed of 7 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Prey Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.05 mg/Kg wet weight whole fish samples of any fish species between 50 to 150 mm in total length collected between February 1 and July 31. (SWRCB Resolution No. 2017-0027) | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723PEACHD. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-10-15 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133109 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 4 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 17 fish were aggregated into 2 annual averages, which consisted of 2 fish species (5 composite(s) of Channel Catfish each composed of 3 fish per composite, 1 composite(s) of Channel Catfish each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 2 station(s) with the station code(s): 723GRSDRN, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 133069 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 19 fish were aggregated into 6 annual averages, which consisted of 4 fish species (1 composite(s) of Common Carp each composed of 1 fish per composite, 2 composite(s) of Common Carp each composed of 3 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Common Carp each composed of 2 fish per composite). | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 5 station(s) with the station code(s): 723OLANDR, 723NRFGDN, 723CNTDRN, 723NROTWM, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-04-04 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 133167 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Wildlife Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality standard for Mercury. This LOE contains data only for trophic level 3 fish. The concentration of Mercury in fish collected within the same calendar year, for the same trophic level were averaged into a single sample for comparison with the objective. A total of 2 fish were aggregated into 1 annual averages, which consisted of 1 fish species (1 composite(s) of Common Carp each composed of 2 fish per composite). This LOE does not contain data from fish whos average length was outside of the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The Statewide Sport Fish Water Quality Objective for the protection of Wildlife Habitat comes from the Statewide Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California, and is 0.2 mg/Kg wet weight skinless fillet samples of trophic level 3, or trophic level 4 fish (whichever is highest in the water body) over a one year averaging period. If trophic level 3 fish are used in the assessment then the Prey Fish Water Quality Objective must also be used to determine that the Sport Fish Objective is being met. Trophic levels of applicable fish are defined in, but not limited to those in Attachment C of the Final Regulatory Language document (Appendix A) of State Water Resources Control Board Resolution No. 2017-0027. | ||||
Guideline Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Spatial Representation: | Data was collected from 1 station(s) with the station code(s): 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2004-11-02 and 2004-11-02 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156168 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Merphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320723 | ||||
Pollutant: | Merphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156156 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Methidathion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29872; LOE Replacement(s): 320932 The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354859 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354849 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354852 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354837 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354843 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354855 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354858 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354844 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 320932 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128040 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 45 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 45 samples exceeded the water quality standard for Methidathion. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 335538 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354860 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354847 | ||||
Pollutant: | Methidathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methidathion. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methidathion is the USEPA Aquatic Life Benchmark of 0.66 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
171964 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Methiocarb |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354863 | ||||
Pollutant: | Methiocarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methiocarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methiocarb is the USEPA Aquatic Life Benchmark of 2.75 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354864 | ||||
Pollutant: | Methiocarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methiocarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methiocarb is the USEPA Aquatic Life Benchmark of 2.75 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354862 | ||||
Pollutant: | Methiocarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methiocarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methiocarb is the USEPA Aquatic Life Benchmark of 2.75 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354869 | ||||
Pollutant: | Methiocarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methiocarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methiocarb is the USEPA Aquatic Life Benchmark of 2.75 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354870 | ||||
Pollutant: | Methiocarb | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methiocarb. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methiocarb is the USEPA Aquatic Life Benchmark of 2.75 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
171965 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Methomyl |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354880 | ||||
Pollutant: | Methomyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Methomyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methomyl is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354882 | ||||
Pollutant: | Methomyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Methomyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methomyl is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354872 | ||||
Pollutant: | Methomyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methomyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methomyl is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354878 | ||||
Pollutant: | Methomyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Methomyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methomyl is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354877 | ||||
Pollutant: | Methomyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Methomyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methomyl is the USEPA Aquatic Life Benchmark of 0.6 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156133 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Methoxychlor |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 30073; LOE Replacement(s): 319618 The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 354887 | ||||
Pollutant: | Methoxychlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methoxychlor. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA national ambient water quality criterion for freshwater aquatic life Criterion Continuous Concentration (CCC) expressed as a 4-day average for methoxychlor is 0.03 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 127658 | ||||
Pollutant: | Methoxychlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Methoxychlor. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | According to the National Recommended Water Quality Criteria, the maximum (instantaneous) criteria to protect aquatic life from levels of mirex in water is 0.03 ug/l. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 128692 | ||||
Pollutant: | Methoxychlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Methoxychlor. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | According to the National Recommended Water Quality Criteria, the maximum (instantaneous) criteria to protect aquatic life from levels of mirex in water is 0.03 ug/l. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319618 | ||||
Pollutant: | Methoxychlor | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of alpha-HCH, beta-HCH, Hexachlorobenzene, or Methoxychlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171975 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Methoxyfenozide |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 354904 | ||||
Pollutant: | Methoxyfenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methoxyfenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methoxyfenozide is the USEPA Aquatic Life Benchmark of 3.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354896 | ||||
Pollutant: | Methoxyfenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methoxyfenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methoxyfenozide is the USEPA Aquatic Life Benchmark of 3.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354897 | ||||
Pollutant: | Methoxyfenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methoxyfenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methoxyfenozide is the USEPA Aquatic Life Benchmark of 3.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354900 | ||||
Pollutant: | Methoxyfenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Methoxyfenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for methoxyfenozide is the USEPA Aquatic Life Benchmark of 3.1 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156134 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Methyl Parathion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). LOE Removal(s): 29872, 30054; LOE Replacement(s): 320933, 319290 |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 355054 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Parathion, Methyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355048 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Parathion, Methyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 128940 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Methyl. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous criteria for Methyl Parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | Data was collected from 49 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319290 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Ethyl Parathion, or Methyl Parathion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320933 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 355057 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Methyl. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355046 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Parathion, Methyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355070 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Methyl. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355064 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Methyl. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355050 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Parathion, Methyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355069 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Parathion, Methyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355062 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Parathion, Methyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental phyusiological responses in human, plant, animal, or indigenous aquatic life. (Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156169 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Mevinphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320736 | ||||
Pollutant: | Mevinphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156135 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Mirex |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 126274 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Waterboard staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: Zero of Zero samples exceeded the water quality standard for Mirex. Although data was collected for 7 fish species (1 composite(s) of Mosquitofish each composed of 25 fish per composite, 2 composite(s) of Common Carp each composed of 5 fish per composite, 1 composite(s) of Common Carp each composed of 3 fish per composite, 4 composite(s) of Tilapia spp. each composed of 5 fish per composite, 1 composite(s) of Tilapia spp. each composed of 6 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Grass Carp each composed of 4 fish per composite), all 11 sample(s) had to be thrown out due to quantitation issues. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for mirex in fish tissue is 0.28 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 1992) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens. | ||||
Spatial Representation: | Data was collected from 7 station(s) with the station code(s): 723NRFGDN, 723BARWDR, 723NRGNDN, 723OLANDR, 723CNTDRN, 723SCNTDR, 723RI3DRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2012-05-07 and 2014-12-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320895 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 128349 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Mirex. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The criterion continuous concentraion for Mirex is 0.001 ug/l from the National Recommended Water Quality Criteria. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | Data was collected from 1 station(s) (Station Code(s) 723CNTDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2011-02-11 to 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 128916 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Mirex. Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The criterion continuous concentraion for Mirex is 0.001 ug/l from the National Recommended Water Quality Criteria. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | Data was collected from 23 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319454 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Dacthal, Mirex, or Oxadiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 46229 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Mirex. Eleven composites (2 - 3 fish per composite) were generated from three species: common carp, Tilapia spp, and channel catfish. Eleven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. | ||||
Data Reference: | RWB7 Fish Tissue Study 2004 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for mirex in fish tissue is 0.28 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens. | ||||
Spatial Representation: | Data for this line of evidence for Imperial Valley Drains was collected at 2 monitoring sites [ Central Drain - 723CNTDRN, Greeson Drain - 723GRSDRN] | ||||
Temporal Representation: | Data was collected over the time period 11/2/2004-11/4/2004. | ||||
Environmental Conditions: | Staff is not aware of any special conditions that might affect interpretation of the data. | ||||
QAPP Information: | The SWAMP QAPP (2002) was followed. | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 126488 | ||||
Pollutant: | Mirex | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Fish fillet | ||||
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Waterboard staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and the results are as follows: Zero of Zero samples exceeded the water quality standard for Mirex. Although data was collected for 7 fish species (2 composite(s) of Mosquitofish each composed of 48 fish per composite, 1 composite(s) of Mosquitofish each composed of 45 fish per composite, 1 composite(s) of Common Carp each composed of 1 fish per composite, 1 composite(s) of Common Carp each composed of 4 fish per composite, 1 composite(s) of Mosquitofish each composed of 117 fish per composite, 1 composite(s) of Mosquitofish each composed of 72 fish per composite, 1 composite(s) of Mosquitofish each composed of 18 fish per composite), all 8 sample(s) had to be thrown out due to quantitation issues. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or indigenous aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The modified OEHHA Fish Contaminant Goal for mirex in fish tissue is 0.28 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 1992) | ||||
Guideline Reference: | Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene | ||||
Guideline Reference: | Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens. | ||||
Spatial Representation: | Data was collected from 4 station(s) with the station code(s): 723PEACHD, 723BARWDR, 723RICEDR, 723CNTDRN. | ||||
Temporal Representation: | Data for this line of evidence were collected between 2011-02-07 and 2011-04-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
156175 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Naled |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320896 | ||||
Pollutant: | Naled | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156136 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Naphthalene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354921 | ||||
Pollutant: | Naphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Naphthalene. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The USEPA recommended naphthalene criterion for the protection of freshwater aquatic life is 620 ug/l. (EPA 440/5-80-059) | ||||
Guideline Reference: | Ambient Water Quality Criteria for Naphthalene | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321022 | ||||
Pollutant: | Naphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320016 | ||||
Pollutant: | Naphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Naphthalene, Acenaphthylene, 1-Methylnaphthalene, 2-Methynaphthalene, 2,6-Dimethylnaphthalene, or 2,3,5-Trimethylnaphthalene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353787 | ||||
Pollutant: | Naphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Naphthalene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for naphthalene is the probable effect concentration (PEC) of 561 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353789 | ||||
Pollutant: | Naphthalene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Naphthalene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for naphthalene is the probable effect concentration (PEC) of 561 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156137 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Nickel |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 353806 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Nickel . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for nickel is the probable effect concentration (PEC) of 48.6 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354924 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Nickel. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 52 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353800 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Nickel . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for nickel is the probable effect concentration (PEC) of 48.6 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333669 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Nickel . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for nickel is the probable effect concentration (PEC) of 48.6 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353797 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Nickel . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for nickel is the probable effect concentration (PEC) of 48.6 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354927 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Nickel. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 52 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353803 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Nickel . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for nickel is the probable effect concentration (PEC) of 48.6 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335613 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Nickel. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 52 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319718 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were generally collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Hardness Dependent Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: Cadmium, Lead, Nickel, and Zinc (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 127670 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 56 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 56 samples exceeded the water quality standard for Nickel. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 32 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 321023 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171966 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Oryzalin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. Zero of the 20 samples exceed the guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 20 samples exceed the guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354947 | ||||
Pollutant: | Oryzalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Oryzalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oryzalin is the USEPA Aquatic Life Benchmark of 13 ug/L for a vascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354938 | ||||
Pollutant: | Oryzalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oryzalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oryzalin is the USEPA Aquatic Life Benchmark of 13 ug/L for a vascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354940 | ||||
Pollutant: | Oryzalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Oryzalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oryzalin is the USEPA Aquatic Life Benchmark of 13 ug/L for a vascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354937 | ||||
Pollutant: | Oryzalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Oryzalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oryzalin is the USEPA Aquatic Life Benchmark of 13 ug/L for a vascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354936 | ||||
Pollutant: | Oryzalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for Oryzalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oryzalin is the USEPA Aquatic Life Benchmark of 13 ug/L for a vascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156138 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Oxadiazon |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. 25 lines of evidence are available in the administrative record to assess this pollutant. Zero samples exceed the guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero samples exceeded the guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 356027 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356030 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723TI2DRN (Timothy 2 Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355995 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCNTDR (South Central Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356029 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356021 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ROSDRN (Rose Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356035 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MAGDRN (Magnolia Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356016 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723RICEDR (Rice Drain at Headgate 101). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355991 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723RI3DRN (Rice 3 Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356023 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDRN (Verde Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356000 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356009 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRDRN (Spruce Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356008 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356007 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-09 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355999 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356024 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARIDRN (I Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356015 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARNDRN (N Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356005 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356014 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355996 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723HLVLDR (Holtville Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356020 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MUNDRN (Munyon Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356010 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARCDRN (C Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355998 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NETDRN (Nettle Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355992 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxadiazon. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Oxadiazon is the USEPA Aquatic Life Benchmark of 0.88 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319455 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Dacthal, Mirex, or Oxadiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320908 | ||||
Pollutant: | Oxadiazon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlordane, Bolstar, Ciodrin, Dacthal, Demeton s, Dichlorvos, Dimethoate, Disulfoton, Endrin Ketone, Ethoprop, Famphur, Mirex, Naled, or Oxodiazon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171960 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Oxamyl (Vydate) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354964 | ||||
Pollutant: | Oxamyl (Vydate) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxamyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oxamyl is the USEPA Aquatic Life Benchmark of 27 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 73 (Pine Drain btwn HWY 115 and Anderson). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354971 | ||||
Pollutant: | Oxamyl (Vydate) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxamyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oxamyl is the USEPA Aquatic Life Benchmark of 27 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354967 | ||||
Pollutant: | Oxamyl (Vydate) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxamyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oxamyl is the USEPA Aquatic Life Benchmark of 27 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354972 | ||||
Pollutant: | Oxamyl (Vydate) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxamyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oxamyl is the USEPA Aquatic Life Benchmark of 27 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354963 | ||||
Pollutant: | Oxamyl (Vydate) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxamyl. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for oxamyl is the USEPA Aquatic Life Benchmark of 27 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-10-11 and 2011-10-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156192 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Oxychlordane |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320734 | ||||
Pollutant: | Oxychlordane | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319456 | ||||
Pollutant: | Oxychlordane | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Oxychlordane, Perylene, or Tedion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171967 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Oxyfluorfen |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 1 of the 20 samples exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 1 of 20 samples exceeded the evaluation guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 354989 | ||||
Pollutant: | Oxyfluorfen | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for Oxyfluorfen. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of oxyfluorfen does not exceed 0.14 ug/L (Bower, et al. 2017). | ||||
Guideline Reference: | Water quality criteria report for Oxyfluorfen. Phase III: application of the pesticide water quality criteria methodology. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354973 | ||||
Pollutant: | Oxyfluorfen | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Oxyfluorfen. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of oxyfluorfen does not exceed 0.14 ug/L (Bower, et al. 2017). | ||||
Guideline Reference: | Water quality criteria report for Oxyfluorfen. Phase III: application of the pesticide water quality criteria methodology. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354975 | ||||
Pollutant: | Oxyfluorfen | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Oxyfluorfen. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of oxyfluorfen does not exceed 0.14 ug/L (Bower, et al. 2017). | ||||
Guideline Reference: | Water quality criteria report for Oxyfluorfen. Phase III: application of the pesticide water quality criteria methodology. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354976 | ||||
Pollutant: | Oxyfluorfen | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 5 samples exceeded the water quality threshold for Oxyfluorfen. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of oxyfluorfen does not exceed 0.14 ug/L (Bower, et al. 2017). | ||||
Guideline Reference: | Water quality criteria report for Oxyfluorfen. Phase III: application of the pesticide water quality criteria methodology. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354984 | ||||
Pollutant: | Oxyfluorfen | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxyfluorfen. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of oxyfluorfen does not exceed 0.14 ug/L (Bower, et al. 2017). | ||||
Guideline Reference: | Water quality criteria report for Oxyfluorfen. Phase III: application of the pesticide water quality criteria methodology. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
159216 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Oxygen, Dissolved |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. 19 lines of evidence are available in the administrative record to assess this pollutant. Five of 109 samples exceed the Water Quality Control Plan, Colorado River Basin, Warm Water Habitat Objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Five of 109 samples exceed the Water Quality Control Plan, Colorado River Basin, Warm Water Habitat Objective. This does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355005 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354998 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355031 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355025 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355011 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355008 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355012 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355006 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355016 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355029 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354999 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354991 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355004 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355030 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355017 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355020 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335722 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 127297 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 76 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 76 samples exceeded the water quality standard for Oxygen, Dissolved. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for cold water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 51 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MALVAD, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD, 728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354992 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355000 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, Colorado River Basin, WARM Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for warm water habitats shall not be reduced below 5.0 mg/l at any time. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
169598 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 333706 | ||||
Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PAHs (Polycyclic Aromatic Hydrocarbons) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total PAHs is the probable effect concentration (PEC) of 22800 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-08 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353813 | ||||
Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PAHs (Polycyclic Aromatic Hydrocarbons) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total PAHs is the probable effect concentration (PEC) of 22800 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353818 | ||||
Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PAHs (Polycyclic Aromatic Hydrocarbons) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total PAHs is the probable effect concentration (PEC) of 22800 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353816 | ||||
Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PAHs (Polycyclic Aromatic Hydrocarbons) . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for total PAHs is the probable effect concentration (PEC) of 22800 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156140 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Parathion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 355042 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Ethyl. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The criterion continuous concentraion for Parathion, Ethyl is 0.013 ug/l from the National Recommended Water Quality Criteria. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 128491 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Ethyl. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The criterion continuous concentraion for Parathion, Ethyl is 0.013 ug/l from the National Recommended Water Quality Criteria. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | Data was collected from 49 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 355044 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Ethyl. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The criterion continuous concentraion for Parathion, Ethyl is 0.013 ug/l from the National Recommended Water Quality Criteria. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319291 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Ethyl Parathion, or Methyl Parathion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 355037 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Ethyl. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The criterion continuous concentraion for Parathion, Ethyl is 0.013 ug/l from the National Recommended Water Quality Criteria. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320934 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171969 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Pendimethalin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 1 of the 20 samples exceed the OBJECTIVE/GUIDELINE/CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 1 of 20 samples exceeded the OBJECTIVE/GUIDELINE/CRITERIA and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 355085 | ||||
Pollutant: | Pendimethalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for Pendimethalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pendimethalin is the USEPA Aquatic Life Benchmark of 5.2 ug/L for a nonvascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355083 | ||||
Pollutant: | Pendimethalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Pendimethalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pendimethalin is the USEPA Aquatic Life Benchmark of 5.2 ug/L for a nonvascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355086 | ||||
Pollutant: | Pendimethalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Pendimethalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pendimethalin is the USEPA Aquatic Life Benchmark of 5.2 ug/L for a nonvascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355074 | ||||
Pollutant: | Pendimethalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 5 samples exceeded the water quality threshold for Pendimethalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pendimethalin is the USEPA Aquatic Life Benchmark of 5.2 ug/L for a nonvascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355079 | ||||
Pollutant: | Pendimethalin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Pendimethalin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pendimethalin is the USEPA Aquatic Life Benchmark of 5.2 ug/L for a nonvascular plant (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156193 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Perylene (Dibenz(de,kl)anthracene) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320735 | ||||
Pollutant: | Perylene (Dibenz(de,kl)anthracene) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319467 | ||||
Pollutant: | Perylene (Dibenz(de,kl)anthracene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Oxychlordane, Perylene, or Tedion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156141 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Phenanthrene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 353836 | ||||
Pollutant: | Phenanthrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Phenanthrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phenanthrene is the probable effect concentration (PEC) of 1170 ug/kg dry weight (MacDonald et al.). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353831 | ||||
Pollutant: | Phenanthrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Phenanthrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phenanthrene is the probable effect concentration (PEC) of 1170 ug/kg dry weight (MacDonald et al.). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353835 | ||||
Pollutant: | Phenanthrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Phenanthrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phenanthrene is the probable effect concentration (PEC) of 1170 ug/kg dry weight (MacDonald et al.). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319268 | ||||
Pollutant: | Phenanthrene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Phenanthrene, or 1-Methylphenanthrene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 321034 | ||||
Pollutant: | Phenanthrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156205 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Pheophytin a |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319276 | ||||
Pollutant: | Pheophytin a | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Three water quality samples were collected and analyzed in October of 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for Hydroxide, or Pheophytin a for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Three water samples were collected. Water samples were collected from all three sampling locations and analyzed in May of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156160 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Phorate |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). The number of measured exceedances is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicant pollutants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that this water segment-pollutant combination should not be placed on the CWA section 303(d) List. Refer to the lines of evidence in this fact sheet for the data and information, sample counts and exceedances, quality assurance documentation, beneficial uses, and water quality objectives or numeric evaluation guidelines relied upon for this decision. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 127850 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 45 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 45 samples exceeded the water quality standard for Phorate. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320748 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 355173 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Phorate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355163 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Phorate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355166 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phorate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355169 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Phorate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355178 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Phorate. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156185 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Phosmet |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. 22 lines of evidence are available in the administrative record to assess this pollutant. Zero samples exceed the guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero samples exceeded the guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 356147 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MAGDRN (Magnolia Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356119 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356121 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356125 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARCDRN (C Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356132 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCNTDR (South Central Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356135 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356133 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MUNDRN (Munyon Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356128 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDRN (Verde Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356158 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723RICEDR (Rice Drain at Headgate 101). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356139 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723TI2DRN (Timothy 2 Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 320749 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 356117 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356144 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-09 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356120 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356134 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723HLVLDR (Holtville Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356112 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356137 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARIDRN (I Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356140 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ARNDRN (N Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356142 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ROSDRN (Rose Drain RWB7). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356109 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRDRN (Spruce Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356113 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NETDRN (Nettle Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356118 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723RI3DRN (Rice 3 Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356138 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Phosmet. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-08 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156186 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Phosphamidon |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320750 | ||||
Pollutant: | Phosphamidon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171972 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Prodiamine |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 355185 | ||||
Pollutant: | Prodiamine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Prodiamine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for prodiamine is the USEPA Aquatic Life Benchmark of 1.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355192 | ||||
Pollutant: | Prodiamine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Prodiamine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for prodiamine is the USEPA Aquatic Life Benchmark of 1.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355183 | ||||
Pollutant: | Prodiamine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for Prodiamine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for prodiamine is the USEPA Aquatic Life Benchmark of 1.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355190 | ||||
Pollutant: | Prodiamine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Prodiamine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for prodiamine is the USEPA Aquatic Life Benchmark of 1.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355187 | ||||
Pollutant: | Prodiamine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Prodiamine. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for prodiamine is the USEPA Aquatic Life Benchmark of 1.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156143 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Prometon (Prometone) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319466 | ||||
Pollutant: | Prometon (Prometone) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Atroton, Prometon, or Secbumeton for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156157 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Prometryn |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319819 | ||||
Pollutant: | Prometryn | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ametryn, Prometryn, Simetryn, or Terbutryn for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156203 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Propazine |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319273 | ||||
Pollutant: | Propazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Propazine, or Terbuthylazine for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156144 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Pyrene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 321035 | ||||
Pollutant: | Pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed biannually from 5/2002 through 5/2005 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentrations (PECs) for the protection of freshwater organisms to toxic effects were used for the following constituents: 33 mg/kg Arsenic, 1050 ug/kg Benz[a]anthrazene, 4.98 mg/kg Cadmium, 111 mg/kg Chromium, 1290 ug/kg Chrysene, 149 mg/kg Copper, 61.8 ug/g Dieldrin, 207 ug/kg Endrin, 2230 ug/kg Fluoranthene, 536 ug/kg Fluorene, 128 mg/kg Lead, 4.99 ug/kg Lindane/Hexachlorocyclohexane (HCH), 1.06 mg/kg Mercury, 561 ug/kg Naphthalene, 48.6 mg/kg Nickel, 676 ug/kg PCBs (Polychlorinated biphenyls), 1170 ug/kg Phenanthrene , 1520 ug/kg Pyrene (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 353842 | ||||
Pollutant: | Pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pyrene is the probable effect concentration (PEC) of 1520 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-07 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353844 | ||||
Pollutant: | Pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pyrene is the probable effect concentration (PEC) of 1520 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-14 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353840 | ||||
Pollutant: | Pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pyrene is the probable effect concentration (PEC) of 1520 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2017-07-11 to 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333721 | ||||
Pollutant: | Pyrene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrene . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pyrene is the probable effect concentration (PEC) of 1520 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2020-01-08 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
170782 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Pyrethrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and retired. Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 356211 | ||||
Pollutant: | Pyrethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Pyrethrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pyrethrin is the USEPA Aquatic Life Benchmark of 0.04 ug/L for freshwater invertebrates (chronic) and is the sum of pyrethrin-1 and pyrethrin-2. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171951 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Pyrethrins |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 356235 | ||||
Pollutant: | Pyrethrins | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Pyrethrins. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for pyrethrins is the USEPA Aquatic Life Benchmark of 0.04 ug/L for an invertebrate (chronic), and is the sum of cinerin-1, cinerin-2, jasmolin-1, jasmolin-2, pyrethrin-1, and pyrethrin-2. | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156201 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Secbumeton |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319477 | ||||
Pollutant: | Secbumeton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Atroton, Prometon, or Secbumeton for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156145 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Silver |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. The number of measured exceedances is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicant pollutants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that this water segment-pollutant combination should not be placed on the CWA section 303(d) List. Refer to the lines of evidence in this fact sheet for the data and information, sample counts and exceedances, quality assurance documentation, beneficial uses, and water quality objectives or numeric evaluation guidelines relied upon for this decision. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 127532 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 56 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 56 samples exceeded the water quality standard for Silver. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion maximum concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 32 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 355292 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Silver. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved silver criterion maximum concentration (CMC) to protect aquatic life in freshwater is hardnesss dependent. The criterion when calculated using a default hardness of 100 mg/L is 3.4 ug/L. This criterion was divided by 2 in order to better represent a CMC value as specified in footnote (g) of Table (b)(1) of the California Toxics Rule, 2000. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 5063 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Hardness Dependent Criterion Maximum Concentrations (CMC) for the protection of freshwater aquatic life (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 336227 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Silver. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved silver criterion maximum concentration (CMC) to protect aquatic life in freshwater is hardnesss dependent. The criterion when calculated using a default hardness of 100 mg/L is 3.4 ug/L. This criterion was divided by 2 in order to better represent a CMC value as specified in footnote (g) of Table (b)(1) of the California Toxics Rule, 2000. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319386 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Aluminum, Manganese, or Silver for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 355283 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Silver. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved silver criterion maximum concentration (CMC) to protect aquatic life in freshwater is hardnesss dependent. The criterion when calculated using a default hardness of 100 mg/L is 3.4 ug/L. This criterion was divided by 2 in order to better represent a CMC value as specified in footnote (g) of Table (b)(1) of the California Toxics Rule, 2000. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156199 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Simetryn |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319820 | ||||
Pollutant: | Simetryn | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ametryn, Prometryn, Simetryn, or Terbutryn for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156187 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Sulfotep |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320751 | ||||
Pollutant: | Sulfotep | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171950 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | T-Fluvalinate |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355300 | ||||
Pollutant: | T-Fluvalinate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for T-Fluvalinate. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for tau-fluvalinate is the USEPA Aquatic Life Benchmark of 0.064 ug/L for a fish (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171976 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Tebufenozide |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355303 | ||||
Pollutant: | Tebufenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Tebufenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for tebufenozide is the USEPA Aquatic Life Benchmark of 29 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355309 | ||||
Pollutant: | Tebufenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Tebufenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for tebufenozide is the USEPA Aquatic Life Benchmark of 29 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355308 | ||||
Pollutant: | Tebufenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Tebufenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for tebufenozide is the USEPA Aquatic Life Benchmark of 29 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355302 | ||||
Pollutant: | Tebufenozide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Tebufenozide. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for tebufenozide is the USEPA Aquatic Life Benchmark of 29 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
156194 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Tedion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320524 | ||||
Pollutant: | Tedion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319468 | ||||
Pollutant: | Tedion | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Oxychlordane, Perylene, or Tedion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156147 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Terbufos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available Multi-pollutant LOEs were removed and replaced by single-pollutant LOEs to comply with modern database requirements. Detailed information is included in the replacement LOE(s). |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 127968 | ||||
Pollutant: | Terbufos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Terbufos. Although a total of 6 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for Terbufos is the USEPA Aquatic Life Benchmark of 0.03 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | Data was collected from 23 station(s) (Station Code(s) 723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN). | ||||
Temporal Representation: | Date for this waterbody was collected over the date range 2012-05-07 to 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319805 | ||||
Pollutant: | Terbufos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Benzo(g,h,i)Perylene, Benzo(e)Pyrene, Biphenyl, or Terbufos for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156204 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Terbuthylazine |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319274 | ||||
Pollutant: | Terbuthylazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Propazine, or Terbuthylazine for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156200 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Terbutryn |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319821 | ||||
Pollutant: | Terbutryn | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ametryn, Prometryn, Simetryn, or Terbutryn for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156148 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Tetrachlorvinphos |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320737 | ||||
Pollutant: | Tetrachlorvinphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Chlorfenvinphos, Cuomaphos, Dicrotophos, Fenchchlorphos, Dyfonate, Leptophos, Merphos, Mevinphos, Tetrachlorvinphos, or Chlorpyrifos Methyl for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
171952 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Tetramethrin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355312 | ||||
Pollutant: | Tetramethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Tetramethrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for tetramethrin is the USEPA Aquatic Life Benchmark of 1.85 ug/L for a fish (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171955 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Thiacloprid |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355316 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355317 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355321 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355322 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355320 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355314 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355315 | ||||
Pollutant: | Thiacloprid | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiacloprid. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiacloprid is the USEPA Aquatic Life Benchmark of 0.97 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171974 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Thiamethoxam |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 355325 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355326 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355327 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355328 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2020-10-27 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355330 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355332 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355331 | ||||
Pollutant: | Thiamethoxam | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Thiamethoxam. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for thiamethoxam is the USEPA Aquatic Life Benchmark of 0.74 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2020-10-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156195 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Thionazin |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320525 | ||||
Pollutant: | Thionazin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156188 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Tokuthion |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320946 | ||||
Pollutant: | Tokuthion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Ethion, Carbophenothion, Dichlofenthion, Dioxathion, Parathion, Fenitrothion, Fensulfothion, Fenthion, Malathion, Methidathion, Methyl Parathion, or Tokuthion for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156149 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Total Dissolved Solids |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 321361 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 1/14/2020 from the following Imperial Valley Drain location: Station Code 723STRDRN. The sample did not exceed the Basin Plan objective for total dissolved solids of 4000 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723STRDRN. | ||||
Temporal Representation: | One water sample was collected 1/14/2020 from the following Imperial Valley Drain location: Station Code 723STRDRN. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321367 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 1/8/2020 from the following Imperial Valley Drain location: Station Code 723IPYG46. The sample did not exceed the Basin Plan objective for total dissolved solids of 4500 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723IPYG46. | ||||
Temporal Representation: | One water sample was collected 1/8/2020 from the following Imperial Valley Drain location: Station Code 723IPYG46. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321372 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 723SSDS02. The sample did not exceed the Basin Plan objective for total dissolved solids of 4500 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723SSDS02. | ||||
Temporal Representation: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 723SSDS02. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321373 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 728SSDS01. The sample did not exceed the Basin Plan objective for total dissolved solids of 4500 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 728SSDS01. | ||||
Temporal Representation: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 728SSDS01. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321360 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample (365-day-avg) was collected 4/8/2019 to 1/7/2020 from the following Imperial Valley Drain location: Station Code 723SSDS03. The sample did not exceed the Basin Plan objective for total dissolved solids of 4000 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723SSDS03. | ||||
Temporal Representation: | One water sample (365-day-avg) was collected 4/8/2019 to 1/7/2020 from the following Imperial Valley Drain location: Station Code 723SSDS03. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321354 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 1/8/2020 from the following Imperial Valley Drain location: Station Code 723IPYG46. The sample did not exceed the Basin Plan objective for total dissolved solids of 4000 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723IPYG46. | ||||
Temporal Representation: | One water sample was collected 1/8/2020 from the following Imperial Valley Drain location: Station Code 723IPYG46. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321359 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 723SSDS02. The sample did not exceed the Basin Plan objective for total dissolved solids of 4000 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723SSDS02. | ||||
Temporal Representation: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 723SSDS02. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125377 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Zero of the 2 samples exceeded the maximum concentration objective and none exceeded the annual average objective. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The site-pecific objective for Total Dissolved Solids (TDS) in the Colorado River Basin Plan on page 3-3, includes an annual average of 4000 mg/L and a maximum of 4500 mg/L. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected at station 728SSDS01, Salton Sea Drain S1 (W Drain). | ||||
Temporal Representation: | Samples were collected on 4/22/2013, and 10/21/2013. | ||||
Environmental Conditions: | |||||
QAPP Information: | The SWAMP QAPP (2008) was followed. | ||||
QAPP Information Reference(s): | Surface Water Ambient Monitoring Program Quality Assurance Program Plan | ||||
|
|||||
LOE ID: | 321362 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 728SSDS01. The sample did not exceed the Basin Plan objective for total dissolved solids of 4000 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 728SSDS01. | ||||
Temporal Representation: | One water sample was collected 10/26/2016 from the following Imperial Valley Drain location: Station Code 723S728SSDS01TRDRN. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321376 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | One water sample was collected 1/14/2020 from the following Imperial Valley Drain location: Station Code 723STRDRN. The sample did not exceed the Basin Plan objective for total dissolved solids of 4500 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | A sample was collected from the following Imperial Valley Drain location: Station Code 723STRDRN. | ||||
Temporal Representation: | One water sample was collected 1/14/2020 from the following Imperial Valley Drain location: Station Code 723STRDRN. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 321375 | ||||
Pollutant: | Total Dissolved Solids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Two water samples were collected 4/8/2019 to 1/7/2020 from the following Imperial Valley Drain location: Station Code 723SSDS03. The samples did not exceed the Basin Plan objective for total dissolved solids of 4500 mg/L to protect the WA beneficial use. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Any discharge, excepting discharges from agricultural sources, shall not cause concentration of total dissolved solids (TDS) in surface waters to exceed the following limits of TDS (mg/L): Annual Average 4000, Maximum 4500 | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Two samples were collected from the following Imperial Valley Drain location: Station Code 723SSDS03. | ||||
Temporal Representation: | Two water samples were collected 4/8/2019 to 1/7/2020 from the following Imperial Valley Drain location: Station Code 723SSDS03. | ||||
Environmental Conditions: | |||||
QAPP Information: | SWAMP QAPrP 2009 | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156151 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Trichlorfon |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320526 | ||||
Pollutant: | Trichlorfon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156196 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Trichloronate |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 320527 | ||||
Pollutant: | Trichloronate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of Oxychlordane, Perylene, Phorate, Phosmet, Phosphamidon, Sulfotep, Tedion, Thionazin, Trichloronate, or Trichlorfon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156152 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Zinc |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 127951 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 56 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 56 samples exceeded the water quality standard for Zinc. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 32 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CENTD2, 723CNTDRN, 723CTD3MA, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAMPAD, 723PEACHD, 723PMLEOD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723UADGUN, 723VERDED, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 4969 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were generally collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains. Of these total samples, none exceeded the PEC (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | Consensus Based Sediment Quality Guideline Probable Effects Concentration (PEC) of 459 mg/kg for the protection of freshwater organisms to toxic effects (Macdonald et al, 2000). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were generally collected and analyzed twice, in May and October of 2002.Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319719 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were generally collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Hardness Dependent Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: Cadmium, Lead, Nickel, and Zinc (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. Samples were not collected from each location every sampling round. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 355356 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Zinc. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 120 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353866 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Zinc . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for zinc is the probable effect concentration (PEC) of 459 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336413 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Zinc. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 120 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2019-10-16 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353862 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the evaluation guideline for Zinc . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for zinc is the probable effect concentration (PEC) of 459 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-10 to 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353871 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Zinc . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for zinc is the probable effect concentration (PEC) of 459 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2018-11-14 to 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353860 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Zinc . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for zinc is the probable effect concentration (PEC) of 459 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-08 to 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 333748 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 3 samples exceeded the evaluation guideline for Zinc . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for zinc is the probable effect concentration (PEC) of 459 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2019-04-09 to 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355363 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Zinc. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 120 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156189 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | alpha-Chlordene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319292 | ||||
Pollutant: | alpha-Chlordene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of alpha-Chlordene, or gamma-Chlordene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319269 | ||||
Pollutant: | alpha-Chlordene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of alpha-Chlordene, or gamma-Chlordene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156109 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | alpha-Endosulfan (Endosulfan 1) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 127471 | ||||
Pollutant: | alpha-Endosulfan (Endosulfan 1) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Endosulfan I. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endosulfan I criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for alpha-endosulfan is 0.056 ug/L. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354506 | ||||
Pollutant: | alpha-Endosulfan (Endosulfan 1) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Endosulfan I. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endosulfan I criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for alpha-endosulfan is 0.056 ug/L. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 128182 | ||||
Pollutant: | alpha-Endosulfan (Endosulfan 1) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Endosulfan I. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endosulfan I criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for alpha-endosulfan is 0.056 ug/L. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 319497 | ||||
Pollutant: | alpha-Endosulfan (Endosulfan 1) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Endosulfan 1, Endosulfan 2, or Endosulfan Sulfate for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 320050 | ||||
Pollutant: | alpha-Endosulfan (Endosulfan 1) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156094 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | alpha.-BHC (Benzenehexachloride or alpha-HCH) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319631 | ||||
Pollutant: | alpha.-BHC (Benzenehexachloride or alpha-HCH) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of alpha-HCH, beta-HCH, Hexachlorobenzene, or Methoxychlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156127 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | beta-BHC (Benzenehexachloride or beta-HCH) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available LOEs for this waterbody-pollutant combination from previous cycles were reviewed, determined to be inaccurate, and removed. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319632 | ||||
Pollutant: | beta-BHC (Benzenehexachloride or beta-HCH) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of alpha-HCH, beta-HCH, Hexachlorobenzene, or Methoxychlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156139 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | beta-Endosulfan (Endosulfan 2) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 354513 | ||||
Pollutant: | beta-Endosulfan (Endosulfan 2) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Endosulfan II. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endosulfan II criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for beta-endosulfan is 0.056 ug/L. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 319498 | ||||
Pollutant: | beta-Endosulfan (Endosulfan 2) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of Endosulfan 1, Endosulfan 2, or Endosulfan Sulfate for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 127641 | ||||
Pollutant: | beta-Endosulfan (Endosulfan 2) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 42 samples exceeded the water quality standard for Endosulfan II. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endosulfan II criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for beta-endosulfan is 0.056 ug/L. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 23 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723CNTDRN, 723HLVLDR, 723MAGDRN, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OLANDR, 723PEACHD, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCNTDR, 723SPRDRN, 723SSDS02, 723SSDS03, 723SSPDRN, 723TI2DRN, 723VERDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2012-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127813 | ||||
Pollutant: | beta-Endosulfan (Endosulfan 2) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed RWB7 TMDL data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality standard for Endosulfan II. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for RWB7 TMDL. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Endosulfan II criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for beta-endosulfan is 0.056 ug/L. | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s) (723CNTDRN) | ||||
Temporal Representation: | The samples were collected between the dates of 2011-02-11 and 2011-02-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 320051 | ||||
Pollutant: | beta-Endosulfan (Endosulfan 2) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains. Of these total samples, none exceeded the CTR Criteria (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | California Toxics Rule (CTR) Criterion Maximum Concentrations (CMCs) for the protection of freshwater aquatic life uses were used for the following constituents: 3 ug/l Aldrin, 0.22 ug/l alpha Endosulfan, 340 ug/l Arsenic, 0.22 ug/l beta-Endosulfan, 2.4 ug/l Chlordane, 0.52 ug/l Heptachlor, and 0.52 ug/l Heptachlor epoxide (USEPA, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156161 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | cis-Nonachlor |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319334 | ||||
Pollutant: | cis-Nonachlor | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of cis-Nonachlor, or trans-Nonachlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319265 | ||||
Pollutant: | cis-Nonachlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of cis-Nonachlor, or trans-Nonachlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
156190 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | gama-Chlordene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319270 | ||||
Pollutant: | gama-Chlordene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of alpha-Chlordene, or gamma-Chlordene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319293 | ||||
Pollutant: | gama-Chlordene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of alpha-Chlordene, or gamma-Chlordene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
159217 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | pH |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for conventional or other pollutants (Table 3.2 of the Listing Policy). The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded. |
|
|||||
LOE ID: | 355128 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336067 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355161 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355160 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355159 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355121 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355162 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355150 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335947 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355132 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355147 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355137 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355133 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355127 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355143 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355124 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355148 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355144 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355156 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 5118 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality measurements were collected and analyzed twice in 2002 at 3 locations in Imperial Valley drains. Of these total measurements, none exceeded the Basin Plan Objective (SWAMP, 2007). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. May 2002-May 2005. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0 (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Measurements were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six measurements were collected. Measurements were generally collected and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 127708 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Freshwater Replenishment | ||||
Number of Samples: | 76 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 76 samples exceeded the water quality standard for pH. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 51 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MALVAD, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD, 728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 128592 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 76 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 76 samples exceeded the water quality standard for pH. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 51 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MALVAD, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD, 728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127322 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 76 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 76 samples exceeded the water quality standard for pH. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 51 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MALVAD, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD, 728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 127318 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 76 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 76 samples exceeded the water quality standard for pH. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 51 monitoring site(s) (723ARCDRN, 723ARIDRN, 723ARNDRN, 723BARWDR, 723BDRAIN, 723CENTD2, 723CENTD3, 723CNTDRN, 723CTD3MA, 723EDRAIN, 723ELML6D, 723HLVLDR, 723KDRAIN, 723MAGDRN, 723MALVAD, 723MARIGD, 723MCALD1, 723MUNDRN, 723NETDRN, 723NRFGDN, 723NRGNDN, 723OASISD, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PEACHD, 723PMLEOD, 723QLATDR, 723RI3DRN, 723RICEDR, 723ROSDRN, 723SCENTD, 723SCNTDR, 723SPRDRN, 723SPRUCD, 723SSDS02, 723SSDS03, 723SSPDRN, 723THIS5D, 723TI2DRN, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723VERDRN, 723WILDCD, 728SSDS01) | ||||
Temporal Representation: | The samples were collected between the dates of 2012-05-07 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 336084 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335961 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335962 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336089 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335844 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335995 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336125 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335872 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336002 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335882 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335883 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336013 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335887 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336022 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335918 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Freshwater Replenishment | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336076 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335912 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336059 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336065 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723STRDRN (R Drain Tributary at Alcott and wister road). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2020-01-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335820 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335821 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335950 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS03 (Salton Sea Drain S3 (Trifolium TD1)). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2020-01-07 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335963 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRFGDN (New River at Fig Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335966 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723NRGNDN (New River at Greeson Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2018-11-14 and 2018-11-14 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336090 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335970 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335848 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CC0065 (Fig Drain ~1.2mi N Westside Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335851 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CNTDRN (Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335977 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336109 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-09 and 2020-01-08 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336116 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARWDR (Barbara Worth Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-28 and 2022-04-25 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335993 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336004 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PEACHD (Peach Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336132 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335888 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Non-Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335911 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SSDS02 (Salton Sea Drain S2 (Niland 4)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336053 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2016-10-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335927 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355131 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | The Water Quality Control Plan for the Colorado River Basin Region's water quality objective for all surface waters states the following: Since the regional waters are somewhat alkaline, pH shall range from 6.0-9.0. Discharges shall not cause any changes in pH detrimental to beneficial water uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-10-27 and 2022-04-26 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
156162 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | trans-Nonachlor |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 319335 | ||||
Pollutant: | trans-Nonachlor | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).No evaluation guidelines for the sediment fractions of cis-Nonachlor, or trans-Nonachlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 319266 | ||||
Pollutant: | trans-Nonachlor | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).No evaluation guidelines for the dissolved fractions of cis-Nonachlor, or trans-Nonachlor for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
159223 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Bifenthrin |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Forty-four lines of evidence are available in the administrative record to assess this pollutant. 7 of the 7 water samples exceed the CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 5 of 5 water samples with a nonreported fraction exceed the CRITERIA and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 3. 3 of 3 total fraction water samples exceed the CRITERIA and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 125457 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 25 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 25 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 26 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for bifenthrin is the median lethal concentration (LC50) of 0.43 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.43 ug/g is the geometric mean of LC50 values for bifenthrin from Amweg et al. (2005) and Amweg and Weston (2007). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Spatial Representation: | Data were collected from 26 (Station Codes: 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723SPRUCD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723UADSPC, 723VAIL7D, 723VAL2AD, 723VERDED, 723WILDCD). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 351636 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Bifenthrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355420 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354119 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354128 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355402 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355405 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355407 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355410 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355427 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355413 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355433 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355434 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355446 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354118 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355398 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355404 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355415 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355445 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355393 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353617 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Bifenthrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for bifenthrin is the median lethal concentration (LC50) of 0.43 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.43 ug/g is the geometric mean of LC50 values for bifenthrin (Amweg et al., 2005 and Amweg and Weston, 2007). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353616 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Bifenthrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for bifenthrin is the median lethal concentration (LC50) of 0.43 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.43 ug/g is the geometric mean of LC50 values for bifenthrin (Amweg et al., 2005 and Amweg and Weston, 2007). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353620 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Bifenthrin . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for bifenthrin is the median lethal concentration (LC50) of 0.43 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.43 ug/g is the geometric mean of LC50 values for bifenthrin (Amweg et al., 2005 and Amweg and Weston, 2007). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354115 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354116 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 3 samples exceeded the water quality threshold for Bifenthrin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355416 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355438 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354129 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355412 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355419 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355430 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355441 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355391 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354104 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Bifenthrin. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354103 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality threshold for Bifenthrin. Although a total of 7 samples were collected, 5 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPHV10). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354125 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355397 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355425 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355395 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354126 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354123 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354127 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355396 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334653 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Bifenthrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for bifenthrin is 0.1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of bifenthrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Bifenthrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
DECISION ID |
159224 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Cypermethrin |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Sixty-nine lines of evidence are available in the administrative record to assess this pollutant. Eight of 8 samples exceed the water quality threshold. Four of the 24 samples exceed the sediment quality threshold but there is insufficient sediment toxicity to determine use support. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Eight of 8 samples exceed the water quality threshold. This exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
|||||
LOE ID: | 357504 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723KDRAIN (K Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357525 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357530 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SCENTD (South Central Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357533 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357534 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin, Total. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 354312 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 354314 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Cypermethrin. Although a total of 3 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPVD69). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355550 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355571 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355543 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355547 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353709 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355551 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355558 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354332 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355560 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355561 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354319 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355575 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355522 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Cypermethrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355527 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353708 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355554 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355556 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355578 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355524 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355549 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355562 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355563 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354321 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355525 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354329 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355540 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353879 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Growth (wt/surv indiv) on 2019-10-15. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723SSDS03 ( Salton Sea Drain S3 (Trifolium TD1) ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353919 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv). | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723STRDRN ( R Drain Tributary at Alcott and wister road ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-04-10. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 334899 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355544 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355531 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355535 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355541 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353711 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin, Total. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354315 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Cypermethrin. Although a total of 7 samples were collected, 6 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPHV10). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354317 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355573 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354327 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355537 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354323 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Cypermethrin. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354324 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354335 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 3 of the 3 samples exceeded the water quality threshold for Cypermethrin. Although a total of 7 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 351708 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Cypermethrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for cypermethrin is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of cypermethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Cypermethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 348840 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program  | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357500 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357510 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357519 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357529 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357508 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OSAGED (Osage Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357501 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BDRAIN (B Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357514 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VERDED (Verde Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357536 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357521 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357531 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357502 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357505 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357507 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357511 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357517 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357518 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357520 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357528 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Cypermethrin, Total. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723EDRAIN (E Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
DECISION ID |
159230 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Esfenvalerate/Fenvalerate |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. 44 lines of evidence are available in the administrative record to assess this pollutant. 8 of the 8 water samples exceed the CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 6 of 6 total fraction water samples exceed the CRITERIA and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. 2 of 2 water samples without a fraction recorded exceed the CRITERIA and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355686 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355707 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355711 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355671 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355673 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355676 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Esfenvalerate. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354554 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353742 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Esfenvalerate/Fenvalerate, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for esfenvalerate/fenvalerate is the median lethal concentration (LC50) of 1.5 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.5 ug/g is the geometric mean of LC50 values for esfenvalerate/fenvalerate (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355715 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354538 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
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LOE ID: | 355675 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 354556 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Esfenvalerate. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355703 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 354535 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality threshold for Esfenvalerate. Although a total of 7 samples were collected, 5 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPHV10). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
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LOE ID: | 355726 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 354537 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
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LOE ID: | 355680 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355702 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Esfenvalerate. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 353743 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Esfenvalerate/Fenvalerate, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for esfenvalerate/fenvalerate is the median lethal concentration (LC50) of 1.5 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.5 ug/g is the geometric mean of LC50 values for esfenvalerate/fenvalerate (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355708 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355716 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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LOE ID: | 355719 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
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LOE ID: | 354551 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Esfenvalerate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
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LOE ID: | 354546 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 354553 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355709 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354548 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354550 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355678 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355681 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354555 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355691 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355694 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355698 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353741 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Esfenvalerate/Fenvalerate, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for esfenvalerate/fenvalerate is the median lethal concentration (LC50) of 1.5 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.5 ug/g is the geometric mean of LC50 values for esfenvalerate/fenvalerate (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355724 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355714 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 354552 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Esfenvalerate. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355693 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355697 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355705 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 125420 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 23 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 23 samples exceeded the evaluation guideline for Esfenvalerate/Fenvalerate, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before January 8, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for esfenvalerate/fenvalerate is the median lethal concentration (LC50) of 1.5 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.5 ug/g is the geometric mean of LC50 values for esfenvalerate/fenvalerate from Amweg et al. (2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 23 (Station Codes: 723BDRAIN, 723CENTD2, 723CENTD3, 723CTD3MA, 723EDRAIN, 723ELML6D, 723KDRAIN, 723MARIGD, 723MCALD1, 723OLANDR, 723OSAGED, 723PAM115, 723PAMPAD, 723PMLEOD, 723QLATDR, 723SCENTD, 723THIS5D, 723TRI12D, 723UADCMC, 723UADGUN, 723VAIL7D, 723VERDED, 723WILDCD). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 335182 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Esfenvalerate. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 351765 | ||||
Pollutant: | Esfenvalerate/Fenvalerate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Esfenvalerate. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for esfenvalerate is 0.3 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of esfenvalerate were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Esfenvalerate | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
159231 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Permethrin |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Sixty-eight lines of evidence are available in the administrative record to assess this pollutant. Eight of the 8 water samples exceed the UC Davis criteria. LOE 125618 & 128044 has been replaced by LOE 335793, 351896 & 348848 due to a reassessment of data. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 8 of 8 water samples exceed the UC Davis criteria and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355104 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355114 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 353828 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 335793 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Permethrin. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 356061 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356080 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355105 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356038 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356063 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356073 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Permethrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356083 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355098 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356070 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356090 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356050 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356059 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356072 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356088 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355092 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355101 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 356048 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356062 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356078 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356079 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355099 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 3 of the 3 samples exceeded the water quality threshold for Permethrin. Although a total of 7 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (723IPHV10). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 351896 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Permethrin. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 348848 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program  | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357593 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357592 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BDRAIN (B Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357596 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357603 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357611 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357591 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357613 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357623 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357609 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357601 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357583 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OSAGED (Osage Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357616 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357600 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357594 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723EDRAIN (E Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357585 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357606 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357590 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357589 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SCENTD (South Central Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357595 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723KDRAIN (K Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357584 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357622 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357605 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VERDED (Verde Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357602 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357610 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 356044 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355110 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355112 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 356041 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356060 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356065 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355100 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Permethrin. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355089 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Permethrin. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 353827 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353830 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | There shall be no bioaccumulation of pesticide concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan for the Colorado River Basin Region) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356037 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356040 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356093 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356042 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356051 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356067 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355094 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Permethrin. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The chronic criterion for permethrin is 1 ng/L (expressed as a 4-day average). If the freely dissolved concentrations of permethrin were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Water Quality Criteria Report for Permethrin | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
159221 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Pyrethroids |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2018) |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 and 3.6 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Under section 3.6 two lines of evidence is necessary to assess listing status. Eighty-six lines of evidence are available in the administrative record to assess this pollutant. LOE 125451 & 127374 has been replaced by LOE 351993, 336157, 351991, 336160, 348857 due to a reassessment of data. Twenty-seven of the 27 water samples exceed the toxic unit equivalent (Department of Fish and Game Aquatic Life Criteria for Pyrethroid Insecticides, 2000, UC Davis Aquatic Life Criteria for Pyrethroid Insecticides, 2012) Six of the 28 sediment samples exceed the toxic unit equivalent (Department of Fish and Game Aquatic Life Criteria for Pyrethroid Insecticides, 2000, UC Davis Aquatic Life Criteria for Pyrethroid Insecticides, 2012) but insufficient sediment toxicity is present in the water segment to determine use support. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3.Twenty-seven of the 27water samples exceed the toxic unit equivalent (Department of Fish and Game Aquatic Life Criteria for Pyrethroid Insecticides, 2000, UC Davis Aquatic Life Criteria for Pyrethroid Insecticides, 2012). This exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 357643 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357635 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357654 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357660 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723KDRAIN (K Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357627 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357626 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357640 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357632 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357656 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357625 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357648 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357665 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BDRAIN (B Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357662 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VERDED (Verde Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357628 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 355208 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355235 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 356290 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ELML6D (Elm Lateral Six Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356295 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WILDCD (Wildcat Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356288 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OASISD (Oasis Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356294 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD2 (Central Drain Two). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356301 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 728SSDS01 (Salton Sea Drain S1 (W Drain)). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-04-22 and 2013-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356317 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SPRUCD (Spruce Drain 0.5 miles from Frdericks Rd. and Kalin Rd. and Brandt Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355205 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 356300 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356279 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356281 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355209 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355242 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355246 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356305 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355210 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-13 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 356313 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CENTD3 (Central Drain Three). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356273 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAMPAD (Pampas Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355207 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 356241 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723EDRAIN (E Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356280 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355247 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355261 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 7 samples were collected, 7 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 356312 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353879 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival. The following tests exhibited toxicity: Hyalella azteca for Growth (wt/surv indiv) on 2019-10-15. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723SSDS03 ( Salton Sea Drain S3 (Trifolium TD1) ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-08 and 2019-10-15. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353919 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by SWAMP RWB7 Monitoring for Imperial Valley Drains exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv). | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or indigenous aquatic life. (Colorado River Basin Plan) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is \Significant; Less Similarity,\ which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 723STRDRN ( R Drain Tributary at Alcott and wister road ). | ||||
Temporal Representation: | The samples were collected between the dates of 2019-04-10 and 2019-04-10. | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355226 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IMWLIN (Imperial Wetlands Inlet). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-07-11 and 2017-07-11 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355241 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 353848 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723MTSIGD (Mount Signal Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356236 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OSAGED (Osage Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356275 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356255 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BDRAIN (B Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356264 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MCALD1 (McCall Drain One). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356285 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VERDED (Verde Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355230 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355240 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355249 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355252 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355215 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 4 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 4 of 4 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 356257 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355222 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 3 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-10-26 and 2017-10-17 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355229 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 5 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 5 of 5 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2017-03-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 356247 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAIL7D (Vail Seven Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356278 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-04 and 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356267 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356307 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723SCENTD (South Central Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353845 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723WRMWDD (Wormwood Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 353846 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-19 to 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 336160 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 336157 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPYG46 (Vail Drain Near Young). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 351991 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 351993 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 348857 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723BARBWD (Barbara Worth Drain at Barbara Worth Resort and Country Club). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program  | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357630 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PAM115 (Pampas Drain near 115). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357663 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADCMC (Unnamed Agriculture Drain near Central Main Canal). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357634 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723UADGUN (Unnamed Agriculture Drain at the intersection of Gunterman Rd. and Hwy 98). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357629 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OSAGED (Osage Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357650 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723CTD3MA (Central Drain Three at Meloland Rd. and Abatti Rd.). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357647 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723OLANDR (Oleander Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-04 to 2015-11-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357641 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723SCENTD (South Central Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357661 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723THIS5D (Thistle Five Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-20 to 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357624 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-11-03 to 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 357652 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life. (Water Quality Control Plan, Colorado River Basin) | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 723EDRAIN (E Drain). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2015-10-21 to 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Quality Assurance Program Plan and Standard Operating Procedures for SWAMP program | ||||
QAPP Information Reference(s): | Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program | ||||
|
|||||
LOE ID: | 356254 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723PMLEOD (Pomelo Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-11-03 and 2015-11-03 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356269 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723UADSPC (Unnamed Agriculture Drain near New Spruce Canal). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-20 and 2015-10-20 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356283 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VAL2AD (Vail Two-A Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 355218 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 3 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 3 of 3 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-10-09 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355214 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed DPR Surface Water Study 290 Name data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Toxicity, WQ from the DPR Surface Water Study 290 Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPRC99 (Rice Drain III at Weinert). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-10-15 and 2014-10-15 | ||||
Environmental Conditions: | |||||
QAPP Information: | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
QAPP Information Reference(s): | Department of Pesticide Regulation (DPR) QAPP Equivalent Documentation 2026 | ||||
|
|||||
LOE ID: | 355225 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723VALCOD (Vail Cut Off Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-19 and 2015-10-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | General SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356293 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Pyrethroids. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723MARIGD (Marigold Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
LOE ID: | 356272 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Imperial Valley Drains to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Pyrethroids. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Water Quality Assessment Data for the 2018 solicitation cycle submitted through CEDEN for SWAMP RWB7 Monitoring. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Colorado River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | The summed ratios of the pyrethroid pesticides bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, lambda-cyhalothrin, permethrin and their respective chronic concentration goals are not to exceed 1. If the freely dissolved concentrations of these pesticides were reported or could be calculated then these values were used for this assessment. In the absence of freely dissolved concentrations, total concentrations were used. | ||||
Guideline Reference: | Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Pyrethroid Pesticide Discharges | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723KDRAIN (K Drain). | ||||
Temporal Representation: | The samples were collected between the dates of 2015-10-21 and 2015-10-21 | ||||
Environmental Conditions: | |||||
QAPP Information: | Generic SWAMP QAPrP | ||||
QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
171961 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Trifluralin |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Sources: | A Source Unknown |
TMDL Priority: | Low |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. 4 of the 20 samples exceed the UC Davis CRITERIA. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 4 of 20 samples exceed the CRITERIA and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | |
|
|||||
LOE ID: | 355348 | ||||
Pollutant: | Trifluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Trifluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of Trifluralin does not exceed 0.33 ug/L in the water column more than once every three years on average (Bower, et al. 2017). | ||||
Guideline Reference: | Water Quality Criteria Report for Trifluralin Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology University of California, Davis. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: Imperial 75 (Trifolium 3 Drain at Walker). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2011-03-01 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355350 | ||||
Pollutant: | Trifluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 5 samples exceeded the water quality threshold for Trifluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of Trifluralin does not exceed 0.33 ug/L in the water column more than once every three years on average (Bower, et al. 2017). | ||||
Guideline Reference: | Water Quality Criteria Report for Trifluralin Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology University of California, Davis. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPHV10 (Holtville Main Drain at 115). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355354 | ||||
Pollutant: | Trifluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 1 of 4 samples exceeded the water quality threshold for Trifluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of Trifluralin does not exceed 0.33 ug/L in the water column more than once every three years on average (Bower, et al. 2017). | ||||
Guideline Reference: | Water Quality Criteria Report for Trifluralin Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology University of California, Davis. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723ST1252 (Rice Drain 3-723ST1252). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355340 | ||||
Pollutant: | Trifluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Trifluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of Trifluralin does not exceed 0.33 ug/L in the water column more than once every three years on average (Bower, et al. 2017). | ||||
Guideline Reference: | Water Quality Criteria Report for Trifluralin Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology University of California, Davis. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPVD69 (Verde Drain at Bonds Corner Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
|
|||||
LOE ID: | 355343 | ||||
Pollutant: | Trifluralin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Surface Water Monitoring Project data for Imperial Valley Drains to determine beneficial use support and results are as follows: 2 of 5 samples exceeded the water quality threshold for Trifluralin. | ||||
Data Reference: | WQ from the Department of Pesticide Regulation Surface Water Monitoring for the 2026 Integrated Report in Region 7 | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
Evaluation Guideline: | UC Davis Aquatic Life Criteria: Aquatic life should not be affected unacceptably if the four-day average concentration of Trifluralin does not exceed 0.33 ug/L in the water column more than once every three years on average (Bower, et al. 2017). | ||||
Guideline Reference: | Water Quality Criteria Report for Trifluralin Phase III: Application of the pesticide water quality criteria methodology. Department of Environmental Toxicology University of California, Davis. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 723IPMV61 (Malva Drain near Park Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2011-03-01 and 2015-10-13 | ||||
Environmental Conditions: | |||||
QAPP Information: | AZDEQ SW QAPP 01/2021 | ||||
QAPP Information Reference(s): | CRB-RWQCB o/b/o AZDEQ - AZDEQ SW QAPP 01/2021 - AZDEQ_SW - 402691 | ||||
DECISION ID |
68868 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Sedimentation/Siltation |
Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)(2016) |
Revision Status | Original |
Sources: | Agricultural Return Flows |
TMDL Name: | Imperial Valley Drains Sediment TMDL |
TMDL Project Code: | 14 |
Date TMDL Approved by USEPA: | 09/30/2005 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for listing under section 2.2 of the Listing Policy. Under this section of the Policy, a minimum of one line of evidence is needed to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. Line of Evidence No 2962 is a placeholder line of evidence, containing no data it is used to indicate this was a listing made prior to 2006. Based on the applicable factor, the Imperial Valley Drains sedimentation/siltation TMDL was approved by USEPA on September 30, 2005. The approved TMDL and implementation plan is expected to result in attainment of the standard. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination in the Water Quality Limited Segments Being Addressed portion of the section 303(d) list. |
Regional Board Decision Recommendation: | This region was not assessed this cycle. All decisions have been carried over from the previous cycle and remain the same. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 2962 | ||||
Pollutant: | Sedimentation/Siltation | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Not Specified | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Not Specified | ||||
Data Used to Assess Water Quality: | Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. | ||||
Data Reference: | Placeholder reference 2006 303(d) | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | |||||
Objective/Criterion Reference: | |||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | |||||
Temporal Representation: | |||||
Environmental Conditions: | |||||
QAPP Information: | QA Info Missing | ||||
QAPP Information Reference(s): | |||||
DECISION ID |
77282 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Carbon (organic) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
Revision Status | Original |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess organic Carbon consistent with Listing Policy section 3.6. No evaluation guideline for the sediment fraction of organic Carbon for the protection of human, animal or aquatic life in fresh waters could be found that meets the requirements of section 6.1.3 of the Listing Policy. Because there are no appropriate evaluation guidelines, staff are unable to make a Listing decision. Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification for placing these water segment-pollutant combinations on the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. No evaluation guideline for the sediment fraction of organic Carbon for the protection of human, animal or aquatic life in fresh waters could be found that meets the requirements of section 6.1.3 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | This region was not assessed this cycle. All decisions have been carried over from the previous cycle and remain the same. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 30076 | ||||
Pollutant: | Carbon (organic) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).
No evaluation guideline for the sediment fraction of Organic Carbon for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
77068 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Dibenzothiophene |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
Revision Status | Original |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for placement on the section 303(d) list under sections 3.1 and 3.6 of the Listing Policy. Under these sections a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess Dibenzothiophene consistent with Listing Policy sections 3.1 and 3.6. No evaluation guidelines for the dissolved or sediment fractions of Dibenzothiophene for the protection of human, animal or aquatic life in fresh waters could be found that meet the requirements of section 6.1.3 of the Listing Policy. Because there are no appropriate evaluation guidelines, staff are unable to make a Listing decision. Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification for placing these water segment-pollutant combinations on the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. No evaluation guidelines for the dissolved or sediment fractions of Dibenzothiophene for the protection of human, animal or aquatic life in fresh waters could be found that meet the requirements of section 6.1.3 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | This region was not assessed this cycle. All decisions have been carried over from the previous cycle and remain the same. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 30061 | ||||
Pollutant: | Dibenzothiophene | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006).). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).
No evaluation guideline for the sediment fraction of Total Petroleum Hydrocarbons as Diesel, used to refer to the dissolved fractions of Diesel Range Organics (dro), for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 sediment samples were collected and analyzed at the Niland 4 and Trifolium TD1 sampling locations only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
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|||||
LOE ID: | 29889 | ||||
Pollutant: | Dibenzothiophene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Three water quality samples were collected and analyzed in October of 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).
No evaluation guideline for the dissolved fraction of Dibenzothiophene for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Three water samples were collected. Water samples were collected from all three sampling locations and analyzed in October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
69998 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Hexachlorocyclohexane (HCH) (mixture) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
Revision Status | Original |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of 40 fish tissue samples exceeded the National Academy of Sciences fish tissue guidelines and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | This region was not assessed this cycle. All decisions have been carried over from the previous cycle and remain the same. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 6734 | ||||
Pollutant: | Hexachlorocyclohexane (HCH) (mixture) | ||||
LOE Subgroup: | Pollutant-Tissue | ||||
Matrix: | Tissue | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 40 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fish tissue analysis | ||||
Data Used to Assess Water Quality: | Twenty-one fish fillet samples and nineteen whole fish samples were taken at 14 locations in Imperial Valley drains. The fish samples were generally collected from 10/1985 through 11/2000. Of these total samples, none exceeded the NAS tissue guideline (TSMP, 2007). | ||||
Data Reference: | Toxic Substances Monitoring Program (TSMP) Data for organic and inorganic chemicals in fish and sediment samples collected from water bodies located in the Colorado River Basin-Region 7. 1978-2000. State Water Resources Control Board. Sacramento, CA. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | National Academy of Science (NAS) tissue guideline of 100 ug/kg for the protection of aquatic life uses (NAS, 1973). | ||||
Guideline Reference: | National Academy of Sciences. Water Quality Criteria 1972. EPA-R3-73-033. Washington, D.C.: U.S. Environmental Protection Agency | ||||
Spatial Representation: | Samples were collected from the following Imperial Valley drain locations; Rose drain, Holtville Main drain, Central drain, South Central drain, Rice drain 3, Verde drain, Greeson drain, Fig drain, Pumice drain, Mayflower drain, Orange drain, Peach Drain, Tokay drain, Barbara Worth drain, and Warren drain. | ||||
Temporal Representation: | Fish tissue samples were generally collected from 10/1985 through 11/2000. Fish tissue samples were not collected from each location every sampling round. Twenty-one fish fillet samples of carp, channel catfish, tilapia, flathead catfish, spiny soft shelled turtle, redbelly tilapia, and yellow bullhead were collected. Eight carp fillet composite samples were collected in the years (2)1985, 1986, 1988, (3)1990, and 1999. Two carp single fish fillet samples were collected in the years 1989-90. Three channel catfish fillet composite samples were collected in the years 1989-90, and 1999. One channel catfish single fish fillet sample was collected in the year 1999. Two tilapia fillet composite samples were collected in the years 1996, and 2000. One flathead catfish fillet composite sample was collected in the year 1988. Two spiny soft shelled turtle fillet composite samples were collected in the year (2)1992. One redbelly tilapia fillet composite sample was collected in the year 1992. One yellow bullhead fillet composite sample was collected in the year 1985. Nineteen whole fish samples of mosquitofish, and sailfin molly were collected. Twelve mosquitofish whole fish composite samples were collected in 1985, 1989, (2)1990, (3)1991, 1995-96, and (3)2000. Seven sailfin molly whole fish composite samples were collected in (2)1989, 1991, (2)1992, (2)2000. | ||||
Environmental Conditions: | |||||
QAPP Information: | The field procedures are described in TSMP Data Reports and associated Appendices. CDFG's Laboratory applies Quality Assurance Program Plan procedures for laboratory Quality Assurance and Quality Control, as described in Rasmussen (1993). | ||||
QAPP Information Reference(s): | Toxic Substances Monitoring Program 1991 Data Report. 93-1WQ. State Water Resources Control Board (SWRCB), Division of Water Quality. Sacramento, CA. | ||||
DECISION ID |
77025 |
Region 7 |
Imperial Valley Drains |
||
Pollutant: | Total Petroleum Hydrocarbons as Diesel |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
Revision Status | Original |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for placement on the section 303(d) list under sections 3.1 and 3.6 of the Listing Policy. Under these sections a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess Total Petroleum Hydrocarbons as Diesel consistent with Listing Policy sections 3.1 and 3.6. Total Petroleum Hydrocarbons as Diesel is used to refer to the dissolved fractions of Diesel Range Organics. No evaluation guidelines for the dissolved or sediment fractions of Total Petroleum Hydrocarbons as Diesel for the protection of human, animal or aquatic life in fresh waters could be found that meet the requirements of section 6.1.3 of the Listing Policy. Because there are no appropriate evaluation guidelines, staff are unable to make a Listing decision. Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification for placing these water segment-pollutant combinations on the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. No evaluation guidelines for the dissolved or sediment fractions of Total Petroleum Hydrocarbons as Diesel for the protection of human, animal or aquatic life in fresh waters could be found that meet the requirements of section 6.1.3 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | This region was not assessed this cycle. All decisions have been carried over from the previous cycle and remain the same. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 30060 | ||||
Pollutant: | Total Petroleum Hydrocarbons as Diesel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Four sediment quality samples were collected and analyzed in May and October of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).
No evaluation guideline for the sediment fraction of Total Petroleum Hydrocarbons as Diesel, used to refer to the dissolved fractions of Diesel Range Organics (dro), for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
||||
Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Four sediment samples were collected. Sediment samples were collected and analyzed in May of 2002 at all three sampling locations. In October of 2002 a sediment sample was collected and analyzed from and Trifolium TD1 sampling location only. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
|
|||||
LOE ID: | 29888 | ||||
Pollutant: | Total Petroleum Hydrocarbons as Diesel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Five water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).
No evaluation guideline for dissolved fractions of Total Petroleum Hydrocarbons as Diesel, used to refer to the dissolved fractions of Diesel Range Organics (dro), for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
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Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Five water samples were collected. Water samples were collected and analyzed at W Drain and Trifolium Drain TD1 sampling locations in May of 2002. Water samples were generally collected from all three sampling locations and analyzed in October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
DECISION ID |
77729 |
Region 7 |
Imperial Valley Drains |
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Pollutant: | delta-BHC (Benzenehexachloride or delta-HCH) |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
Revision Status | Original |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for placement on the section 303(d) list under sections 3.1 and 3.6 of the Listing Policy. Under these sections a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess delta-BHC consistent with Listing Policy sections 3.1 and 3.6. No evaluation guidelines for the dissolved or sediment fractions of delta-BHC for the protection of human, animal or aquatic life in fresh waters could be found that meet the requirements of section 6.1.3 of the Listing Policy. Because there are no appropriate evaluation guidelines, staff are unable to make a Listing decision. Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification for placing these water segment-pollutant combinations on the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. No evaluation guidelines for the dissolved or sediment fractions of delta-BHC for the protection of human, animal or aquatic life in fresh waters could be found that meet the requirements of section 6.1.3 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | This region was not assessed this cycle. All decisions have been carried over from the previous cycle and remain the same. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 30050 | ||||
Pollutant: | delta-BHC (Benzenehexachloride or delta-HCH) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Three sediment quality samples were collected and analyzed in May of 2002 at 3 locations along Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses. There shall be no increase in hazardous chemical concentrations found in bottom sediments or aquatic life (CRBRWQCB, 2006).
No evaluation guideline for the sediment fraction of delta-BHC for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
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Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Three sediment samples were collected. Sediment samples were collected and analyzed in May of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||
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LOE ID: | 29868 | ||||
Pollutant: | delta-BHC (Benzenehexachloride or delta-HCH) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Fixed station physical/chemical (conventional plus toxic pollutants) | ||||
Data Used to Assess Water Quality: | Six water quality samples were collected and analyzed in May and October 2002 at 3 locations in Imperial Valley Drains (SWAMP, 2006). | ||||
Data Reference: | Surface Water Ambient Monitoring Program (SWAMP) Data for organic and inorganic constituents in water and sediment samples collected from water bodies located in the Colorado River Basin- Region 7. May 2002 - May 2004. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan: No individual chemical or combination of chemicals shall be present in concentrations that adversely affect beneficial uses (CRBRWQCB, 2006).
No evaluation guideline for the dissolved fraction of delta-BHC for the protection of human, animal or aquatic life in fresh waters could be found that met the requirements of Section 6.1.3 of the Listing Policy. |
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Objective/Criterion Reference: | Water Quality Control Plan Colorado River Basin, with amendments adopted through June 2006 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Samples were collected from three Imperial Valley Drains ;Trifolium TD1, Niland 4, and W. | ||||
Temporal Representation: | Six water samples were collected. Water samples were generally collected from all three sampling locations and analyzed twice, in May and October of 2002. | ||||
Environmental Conditions: | |||||
QAPP Information: | The sampling and analysis portions of this study were conducted in accordance with the SWAMP Quality Assurance Management Plan (QAMP) (Puckett, 2002). | ||||
QAPP Information Reference(s): | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) | ||||