| Water Body Name: | Sunbeam Lake |
| Water Body ID: | CAL7231000020000127134040 |
| Water Body Type: | Lake & Reservoir |
DECISION ID |
158763 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46205 | ||||
| Pollutant: | Aldrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Aldrin. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334294 | ||||
| Pollutant: | Aldrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Aldrin. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334295 | ||||
| Pollutant: | Aldrin | ||||
| 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Aldrin. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
164465 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46555 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Arsenic. Seven composites were generated from two species: channel catfish and largemouth bass. Composites were comprised of 2-3 fish per composite for channel catfish and 1 fish per composite for largemouth bass. Seven 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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 |
164466 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46556 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Cadmium. Seven composites were generated from two species: channel catfish and largemouth bass. Composites were comprised of 2-3 fish per composite for channel catfish and 1 fish per composite for largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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 |
158746 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Chlordane |
| 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: | 46206 | ||||
| Pollutant: | Chlordane | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Chlordane, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334301 | ||||
| Pollutant: | Chlordane | ||||
| 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Chlordane. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334299 | ||||
| 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: | 7 | ||||
| Number of Exceedances: | 1 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 1 of 7 samples exceeded the water quality threshold for Chlordane. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. The exceeding sample was composed of Common Carp. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 46557 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Chlordane, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 334300 | ||||
| Pollutant: | Chlordane | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Chlordane. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158747 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Chlorophyll-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: | |
|
|||||
| LOE ID: | 334756 | ||||
| Pollutant: | Chlorophyll-a | ||||
| 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorophyll a. | ||||
| Data Reference: | Habitat, Tissue, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses (general objective for biostimulatory substances, Water Quality Control Plan, Colorado River Basin, Chapter III, Section II). | ||||
| Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
| Evaluation Guideline: | North Carolina Administrative code (NCAC), Title 15ANAEnvironmental and Natural Resources, Subchapter 2B-Surface water and wetland standards, Rule 0211-Fresh surface water quality standards for class C waters (Class C is defined as freshwaters protected for secondary recreation, fishing, aquatic life including propagation and survival, and wildlife). Section 3(a) of Rule 0211 applies to all fresh surface waters and states that chlorophyll a is not to exceed 40 ug/L. | ||||
| Guideline Reference: | North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | ||||
| Spatial Representation: | The samples were collected at 1 monitoring site: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2014-09-30 and 2014-09-30 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334758 | ||||
| Pollutant: | Chlorophyll-a | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 1 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chlorophyll a. | ||||
| Data Reference: | Habitat, Tissue, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses (general objective for biostimulatory substances, Water Quality Control Plan, Colorado River Basin, Chapter III, Section II). | ||||
| Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
| Evaluation Guideline: | North Carolina Administrative code (NCAC), Title 15ANAEnvironmental and Natural Resources, Subchapter 2B-Surface water and wetland standards, Rule 0211-Fresh surface water quality standards for class C waters (Class C is defined as freshwaters protected for secondary recreation, fishing, aquatic life including propagation and survival, and wildlife). Section 3(a) of Rule 0211 applies to all fresh surface waters and states that chlorophyll a is not to exceed 40 ug/L. | ||||
| Guideline Reference: | North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | ||||
| Spatial Representation: | The samples were collected at 1 monitoring site: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2014-09-30 and 2014-09-30 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
164467 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Chlorpyrifos |
| 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: | 46558 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Chlorpyrifos. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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 |
164468 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46560 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Diazinon. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
| 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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 |
158749 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Endosulfan |
| 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: | 46562 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Endosulfan, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46220 | ||||
| Pollutant: | Endosulfan | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Endosulfan, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334311 | ||||
| Pollutant: | Endosulfan | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold Freshwater 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Endosulfan. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334308 | ||||
| Pollutant: | Endosulfan | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Endosulfan. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334310 | ||||
| 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: | 6 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Endosulfan. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158750 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46563 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Endrin. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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: | Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis | ||||
| 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46221 | ||||
| Pollutant: | Endrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Endrin. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334314 | ||||
| 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: | 6 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Endrin. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334316 | ||||
| Pollutant: | Endrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold Freshwater 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Endrin. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334315 | ||||
| Pollutant: | Endrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Endrin. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158751 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46223 | ||||
| Pollutant: | Heptachlor | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Heptachlor. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334323 | ||||
| Pollutant: | Heptachlor | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Heptachlor. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334322 | ||||
| Pollutant: | Heptachlor | ||||
| 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Heptachlor. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158752 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46565 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Heptachlor epoxide. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. Four 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46235 | ||||
| Pollutant: | Heptachlor epoxide | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Heptachlor epoxide. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334326 | ||||
| Pollutant: | Heptachlor epoxide | ||||
| 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Heptachlor Epoxide. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334329 | ||||
| Pollutant: | Heptachlor epoxide | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Heptachlor Epoxide. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334325 | ||||
| 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: | Water Board staff assessed SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 0 samples exceeded the water quality threshold for Heptachlor Epoxide. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. These samples were not used in the assessment because the laboratory data reporting limits were above the objectives and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158753 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46566 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Hexachlorobenzene. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 334330 | ||||
| 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: | 7 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Hexachlorobenzene. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158754 |
Region 7 |
Sunbeam Lake |
||
| 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: | 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: | 46564 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for HCH, gamma. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46222 | ||||
| Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for HCH, gamma. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334321 | ||||
| Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for HCH, gamma-. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334320 | ||||
| Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
| 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for HCH, gamma-. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334318 | ||||
| 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: | 7 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for HCH, gamma-. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
170577 |
Region 7 |
Sunbeam Lake |
||
| 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: | Pollution |
| Regional Board Conclusion: | 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. Ten lines of evidence are available in the administrative record to assess the pollutant. COMM (Sport fish objective) Fish used in the COMM assessment are limited to lengths that are within Calif. Dept. of Fish and Wildlife legal size limits applicable to this waterbody. LOE 132921: 0 of 1 samples exceed the mercury objective and consist of 10 trophic level 4 fish. LOE 133187: 0 of 1 samples exceed the mercury objective and consist of 6 trophic level 4 fish. (CDFW legal limit) LOE 334345: 0 of 2 samples exceed the mercury objective and consist of 18 trophic level 4 fish. (CDFW legal limit) WILD (Prey fish objective) LOE 334371: 0 of 1 samples exceed the mercury objective and consist of 20 50-150 mm prey fish. WILD (Sport fish objective) LOE 133000: 0 of 1 samples exceed the mercury objective and consist of 10 trophic level 4 fish. LOE 132886: 0 of 1 samples exceed the mercury objective and consist of 6 trophic level 4 fish. (CDFW legal limit) LOE 334369: 0 of 2 samples exceed the mercury objective and consist of 18 trophic level 4 fish. (CDFW legal limit) In 2023, OEHHA released the Health Advisory and Guidelines for Eating Fish from Sunbeam Lake (Imperial County). Fishing occurs at Sunbeam Lake and the fish species (Largemouth Bass) used for the assessments are part of 2023 Advisory. 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. No water samples exceeded water quality objectives for COLD, WARM, or MUN beneficial uses. 4. 0 of 3 sample exceeds the objective for the WILD beneficial use. 0 of 3 sample exceeds the objective for the COMM beneficial use. WILD and COMM beneficial uses are supported for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. 5. Tissue samples were compared with the prey fish objective and 0 of 1 samples exceed WILD beneficial use. The sample consists of 20 fish and may contain a mix of trophic levels. One exceeding sample of eight or more fish is needed to determine non-attainment of the mercury objective following weight of evidence in Listing Policy section 3.11. 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: | Decision written by SWRCB staff. |
|
|||||
| LOE ID: | 132921 | ||||
| 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 Sunbeam Lake 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 10 fish were aggregated into 1 annual averages, which consisted of 3 fish species (1 composite(s) of Channel Catfish each composed of 2 fish per composite, 1 composite(s) of Channel Catfish each composed of 3 fish per composite, 5 composite(s) of Largemouth Bass each composed of 1 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): 723SUNBLK. | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2004-11-08 and 2004-11-08 | ||||
| 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: | 133187 | ||||
| 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 Sunbeam Lake 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 6 fish were aggregated into 1 annual averages, which consisted of 3 fish species (1 composite(s) of Channel Catfish each composed of 2 fish per composite, 1 composite(s) of Channel Catfish each composed of 3 fish per composite, 1 composite(s) of Largemouth Bass each composed of 1 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): 723SUNBLK. | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2004-11-08 and 2004-11-08 | ||||
| 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: | 132886 | ||||
| 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 Sunbeam Lake 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 6 fish were aggregated into 1 annual averages, which consisted of 3 fish species (1 composite(s) of Channel Catfish each composed of 2 fish per composite, 1 composite(s) of Channel Catfish each composed of 3 fish per composite, 1 composite(s) of Largemouth Bass each composed of 1 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): 723SUNBLK. | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2004-11-08 and 2004-11-08 | ||||
| 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: | 133000 | ||||
| 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 Sunbeam Lake 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 10 fish were aggregated into 1 annual averages, which consisted of 3 fish species (1 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, 5 composite(s) of Largemouth Bass each composed of 1 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): 723SUNBLK. | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2004-11-08 and 2004-11-08 | ||||
| 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: | 335526 | ||||
| Pollutant: | Mercury | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 1 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
| Data Reference: | Habitat, Tissue, 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2014-09-30 and 2014-09-30 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 335533 | ||||
| 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
| Data Reference: | Habitat, Tissue, 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2014-09-30 and 2014-09-30 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334369 | ||||
| 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 2 samples exceeded the water quality threshold for Mercury. Monitors collected 3 composites: 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 13 composites of Largemouth Bass composed of 1 fish each. This LOE contains data only for trophic level 4 fish whose average length was inside the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. Fish collected within the same calendar year were averaged into a single sample for comparison with the objective. A total of 18 fish were collected over 2 calendar years, which resulted in 2 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2015-07-29. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 335525 | ||||
| Pollutant: | Mercury | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 1 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Mercury. | ||||
| Data Reference: | Habitat, Tissue, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | The mercury criteria for the protection of human health from the consumption of water and organisms for mercury is 0.050 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2014-09-30 and 2014-09-30 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334345 | ||||
| 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 2 samples exceeded the water quality threshold for Mercury. Monitors collected 3 composites: 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 13 composites of Largemouth Bass composed of 1 fish each. This LOE contains data only for trophic level 4 fish whose average length was inside the legal size limits as described by the California Department of Fish and Wildlife Fishing Regulations. Fish collected within the same calendar year were averaged into a single sample for comparison with the objective. A total of 18 fish were collected over 2 calendar years, which resulted in 2 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2015-07-29. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334371 | ||||
| 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 1 sample exceeded the water quality threshold for Mercury. Monitors collected 2 composites: 1 composite of Bluegill composed of 10 fish and 1 composite of Largemouth Bass composed of 10 fish. All fish collected between February and July of 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. All 20 fish were collected in a single calendar year, which resulted in 1 independent sample. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2015-07-29 and 2015-07-29. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158755 |
Region 7 |
Sunbeam Lake |
||
| 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: | Regional Board Conclusion:
The pollutant was considered for placement on the section 303(d) list in a previous 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 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 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. Four fish tissue samples were collected, but 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. 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 is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed. |
| State Board Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | |
|
|||||
| LOE ID: | 46568 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Mirex. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. Four 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: | Water Quality Criterion for the Protection of Human Health: Methylmercury. Final. United States Environmental Protection Agency Office of Science and Technology Office of Water. EPA-823-R-01-001. January 2001 | ||||
| Spatial Representation: | Data for this line of evidence for Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 334390 | ||||
| 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: | Water Board staff assessed SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 0 samples exceeded the water quality threshold for Mirex. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. These samples were not used in the assessment because the laboratory data reporting limits were above the objectives and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158756 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Oxygen, Dissolved |
| 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: | 335732 | ||||
| Pollutant: | Oxygen, Dissolved | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 1 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Sunbeam Lake 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, Cold Water Habitat Objective, Chapter III, states the following: The dissolved oxygen concentration for cold water habitats shall not be reduced below 8.0 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 335703 | ||||
| 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 Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158758 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | PCBs (Polychlorinated biphenyls) |
| 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: | 46569 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for PCB, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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: | he 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46236 | ||||
| Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for PCB, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334392 | ||||
| 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: | 7 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls). Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334391 | ||||
| Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
| 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls). Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334393 | ||||
| Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls). Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158759 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Selenium |
| 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: | 46570 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Selenium. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. Composites were comprised of 2-3 fish per composite for channel catfish and 1 fish per composite for largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 334402 | ||||
| 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: | 7 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Selenium. Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
169593 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Specific Conductivity |
| 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: | 336282 | ||||
| Pollutant: | Specific Conductivity | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for SpecificConductivity. | ||||
| Data Reference: | Field, Habitat, Tissue, 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 California Secondary MCL for specific conductance is 900 uS/cm (Title 22 California Code of Regulations). | ||||
| Guideline Reference: | Title 22. Division 4. Chapter 15. Sections 64400 et seq. California Code of Regulations | ||||
| Spatial Representation: | The samples were collected at 1 monitoring site: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158760 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Sulfates |
| 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: | 336322 | ||||
| Pollutant: | Sulfates | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Dissolved | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 1 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Sulfate. | ||||
| Data Reference: | Habitat, Tissue, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
| 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. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan for the Colorado River Basin Region (Includes amendments effective on or before March 30, 2019) | ||||
| Evaluation Guideline: | The Drinking Water Secondary Maximum Contaminant Levels (SMCLs) for consumer acceptance of 500 mg/l. | ||||
| Guideline Reference: | California Code of Regulations, Title 22, Division 4, Chapter 15. Domestic Water Quality and Monitoring | ||||
| Spatial Representation: | The samples were collected at 1 monitoring site: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2014-09-30 and 2014-09-30 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158761 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Temperature, water |
| 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: | 336329 | ||||
| Pollutant: | Temperature, water | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold 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 Sunbeam Lake to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Temperature. | ||||
| Data Reference: | Field, Habitat, Tissue, Toxicity, WQ from the Surface Water Ambient Monitoring Program for the 2026 Integrated Report in Region 7 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not 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: | Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). | ||||
| Guideline Reference: | Inland Fishes of California | ||||
| Spatial Representation: | The samples were collected at 1 monitoring site: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
164469 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Toxaphene |
| 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: | 46571 | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Toxaphene. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. Four 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46237 | ||||
| Pollutant: | Toxaphene | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Toxaphene. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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 |
158762 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Turbidity |
| 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: | 336388 | ||||
| Pollutant: | Turbidity | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| 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 Sunbeam Lake to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Turbidity. | ||||
| Data Reference: | Field, Habitat, Tissue, 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: | California Maximum Contaminant Levels (MCLs) apply to ambient surface waters under the Basin Plan's 'Chemical Constituents' objective. The Secondary MCL for turbidity is 5 NTU. Calculation of a numeric objective for other beneficial uses requires comparison with upstream or other background data which may not be available as part of the data used for water quality assessment. | ||||
| Guideline Reference: | California Code of Regulations, Title 22, Division 4, Chapter 15. Domestic Water Quality and Monitoring | ||||
| Spatial Representation: | The samples were collected at 1 monitoring site: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
158757 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | pH |
| 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: | 335969 | ||||
| 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 Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 336087 | ||||
| Pollutant: | pH | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 1 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 336012 | ||||
| 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 Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 336088 | ||||
| Pollutant: | pH | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 1 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 335978 | ||||
| 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 Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 336033 | ||||
| Pollutant: | pH | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Agricultural Supply | ||||
| Number of Samples: | 1 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP RWB7 Monitoring data for Sunbeam Lake 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: 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | The samples were collected between the dates of 2016-04-06 and 2016-04-06 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
DECISION ID |
170125 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | DDT (Dichlorodiphenyltrichloroethane) |
| 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 3.11 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. 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. 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. Additionally, this water body was recently stocked with fish by CDFW in 2023. Data were collected as recent as 2026 and 2 out of 9 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. Five lines of evidence are available in the administrative record to assess this pollutant. Two of the nine samples exceed the modified OEHHA Fish Contaminant Goal for total DDT. 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. Two of the nine samples exceed the modified OEHHA Fish Contaminant Goal for total DDT 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: | 334405 | ||||
| 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: | 7 | ||||
| Number of Exceedances: | 1 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 1 of 7 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. The exceeding sample was composed of Common Carp. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334407 | ||||
| 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: | Cold 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 SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334406 | ||||
| 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: | 7 | ||||
| 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 Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 7 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD). Monitors collected 7 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, 1 composite of Largemouth Bass composed of 4 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 7 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 46559 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for DDT, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46207 | ||||
| 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: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for DDT, Total. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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 |
158748 |
Region 7 |
Sunbeam Lake |
||
| Pollutant: | Dieldrin |
| 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 3.11 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. 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. 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. Additionally, this waterbody was stocked with fish by CDFW in 2024. Data were collected as recent as 2026 and four out of four 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. Five lines of evidence are available in the administrative record to assess this pollutant. Four of the four samples exceed the modified OEHHA Fish Contaminant Goal for dieldrin. 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. Four of the four samples exceed the modified OEHHA Fish Contaminant Goal for dieldrin 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: | This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed. |
| State Board Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | |
|
|||||
| LOE ID: | 46561 | ||||
| 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: | 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 Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Dieldrin. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. sample results 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 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| Environmental Conditions: | |||||
| 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: | 46208 | ||||
| Pollutant: | Dieldrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP data for Sunbeam Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Dieldrin. Four composites (2 - 3 fish per composite) were generated from two species: channel catfish and largemouth bass. 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 Sunbeam Lake was collected at 1 monitoring site [ Sunbeam Lake - 723SUNBLK] | ||||
| Temporal Representation: | Data was collected on a single day 11/8/2004. | ||||
| 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: | 334304 | ||||
| Pollutant: | Dieldrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Warm Freshwater 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Dieldrin. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
|
|||||
| LOE ID: | 334303 | ||||
| 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: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Water Board staff assessed SWAMP Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 4 of 4 samples exceeded the water quality threshold for Dieldrin. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. 2 samples were not used in the assessment because the laboratory data reporting limits were above the objectives and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. The exceeding samples were composed of Common Carp, Channel Catfish, and Flathead Catfish. | ||||
| Data Reference: | Habitat, Tissue, 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. (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 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||
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| LOE ID: | 334302 | ||||
| Pollutant: | Dieldrin | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Fish fillet | ||||
| Beneficial Use: | Cold Freshwater 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 Sportfish Contamination in Lakes and Resrv data for Sunbeam Lake to determine beneficial use support and the results are as follows: 0 of 6 samples exceeded the water quality threshold for Dieldrin. Monitors collected 6 composites: 1 composite of Channel Catfish composed of 4 fish, 1 composite of Common Carp composed of 3 fish, 1 composite of Common Carp composed of 4 fish, 1 composite of Flathead Catfish composed of 2 fish, 1 composite of Flathead Catfish composed of 3 fish, and 1 composite of Redear Sunfish composed of 10 fish. Because no composites were collected within the same averaging period, these composites represent 6 independent samples. | ||||
| Data Reference: | Habitat, Tissue, 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. (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: | 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 were collected from 1 station(s). Station Code(s): 723SUNBLK (Sunbeam Lake). | ||||
| Temporal Representation: | Data for this line of evidence were collected between 2014-10-20 and 2014-10-28. When composited fish were collected over multiple days, the first day of fish collection was used as the sample date in the LOE, both for LOE writing, and for averaging period purposes. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | General SWAMP QAPrP | ||||
| QAPP Information Reference(s): | Generic SWAMP QAPrP | ||||