Draft California 2020 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 5 - Central Valley Region

Water Body Name:	South Fork Cosumnes River
Water Body ID:	CAR5322406020190712039302
Water Body Type:	River & Stream


DECISION ID	124512	Region 5
South Fork Cosumnes River

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:	This pollutant is being considered for placement on the Clean Water Act (CWA) section 303(d) List under section 3.2 of the Listing Policy. A total of four lines of evidence are available in the administrative record to assess this pollutant. A total of four of nine samples exceed the water quality objective for the cold freshwater habitat beneficial use and four of nine samples exceed the water quality objective for the fish spawning beneficial use. These data are insufficient to determine the applicable beneficial use support rating with the power and confidence required by the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. A total of four of nine samples exceed the water quality objective for the cold freshwater habitat beneficial use and four of nine samples exceed the water quality objective for the fish spawning beneficial use. This does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. 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:

Line of Evidence (LOE) for Decision ID 124512, Oxygen, Dissolved	Region 5
South Fork Cosumnes River

LOE ID:

208032

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 3 of 6 samples exceeded the water quality threshold for Oxygen, Dissolved.

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins; Fifth Edition. Revised May 2018 (with approved amendments)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

ARC Cosumnes River Monitoring Program. 2017. QAPP for Cosumnes River Water Quality Monitoring Program., ARC Cosumnes River Monitoring Program. 2018. QAPP for Cosumnes River Water Quality Monitoring Program.

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124512, Oxygen, Dissolved	Region 5
South Fork Cosumnes River

LOE ID:

208978

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 1 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved.

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

ARC Cosumnes River Monitoring Program. 2015. QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program., ARC Cosumnes River Monitoring Program. 2016. QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program.

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124512, Oxygen, Dissolved	Region 5
South Fork Cosumnes River

LOE ID:

207558

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124512, Oxygen, Dissolved	Region 5
South Fork Cosumnes River

LOE ID:

207998

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program


DECISION ID	131193	Region 5
South Fork Cosumnes River

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:	This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. 6 lines of evidence are available in the administrative record to assess this pollutant. 0 of the 9 samples exceed the OBJECTIVE for COLD, Fish Migration, and Fish Spawning. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 0 of the 9 samples exceed the OBJECTIVE for COLD, Fish Migration, and Fish Spawning, and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	This decision was made by SWRCB staff.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.

Line of Evidence (LOE) for Decision ID 131193, Temperature, water	Region 5
South Fork Cosumnes River

LOE ID:

231066

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Migration

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Temperature.

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses (Sacramento-San Joaquin River Basin Plans.

Objective/Criterion Reference:

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 (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 131193, Temperature, water	Region 5
South Fork Cosumnes River

LOE ID:

231065

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Temperature.

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

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 (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 131193, Temperature, water	Region 5
South Fork Cosumnes River

LOE ID:

231064

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

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 (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 131193, Temperature, water	Region 5
South Fork Cosumnes River

LOE ID:

231067

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Migration

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

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 (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 131193, Temperature, water	Region 5
South Fork Cosumnes River

LOE ID:

231048

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

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 (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 131193, Temperature, water	Region 5
South Fork Cosumnes River

LOE ID:

231047

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

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 (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program


DECISION ID	124513	Region 5
South Fork Cosumnes River

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:	This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Nine lines of evidence are available in the administrative record to assess this pollutant. Two of the 20 samples exceeded the OBJECTIVE for COLD, REC-1, and REC-2. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Two of the 20 samples exceeded the OBJECTIVE for COLD, REC-1, and REC-2. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 26 samples is needed to determine if a beneficial use is fully supported using table 3.2. 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 decision was made by SWRCB staff.

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.

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

229611

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Non-Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

229403

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

228093

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed STORET data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 1 of 11 samples exceeded the water quality threshold for pH.

Data Reference:

WQX data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (CALWR_WQX-B1411001)

Temporal Representation:

The samples were collected between the dates of 2010-10-25 and 2016-04-13

Environmental Conditions:

QAPP Information:

STORET

QAPP Information Reference(s):

This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

228084

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed STORET data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 1 of 11 samples exceeded the water quality threshold for pH.

Data Reference:

WQX data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (CALWR_WQX-B1411001)

Temporal Representation:

The samples were collected between the dates of 2010-10-25 and 2016-04-13

Environmental Conditions:

QAPP Information:

STORET

QAPP Information Reference(s):

This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

228089

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Non-Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed STORET data for South Fork Cosumnes River to determine beneficial use support and results are as follows: 1 of 11 samples exceeded the water quality threshold for pH.

Data Reference:

WQX data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (CALWR_WQX-B1411001)

Temporal Representation:

The samples were collected between the dates of 2010-10-25 and 2016-04-13

Environmental Conditions:

QAPP Information:

STORET

QAPP Information Reference(s):

This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

229550

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

229521

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

229401

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2017-06-17 and 2018-07-20

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Cosumnes River Water Quality Monitoring Program

Line of Evidence (LOE) for Decision ID 124513, pH	Region 5
South Fork Cosumnes River

LOE ID:

229509

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Non-Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (532COS012)

Temporal Representation:

The samples were collected between the dates of 2016-05-21 and 2016-07-16

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program

QAPP Information Reference(s):

QAPP for Trout Unlimited El Dorado Chapter Cosumnes River Water Quality Monitoring Program