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

Supporting Information

Regional Board 5 - Central Valley Region

Water Body Name: Cosumnes River, North Fork
Water Body ID: CAR5322308020110822171824
Water Body Type: River & Stream
 
DECISION ID
123602
Region 5     
Cosumnes River, North Fork
 
Pollutant: Alkalinity as CaCO3
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for conventional or other pollutants (Table 3.2 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123602, Alkalinity as CaCO3
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199440
 
Pollutant: Alkalinity as CaCO3
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Alkalinity as CaCO3.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.
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: Alkalinity as CaCO3 levels were assessed for the protection of freshwater aquatic life by comparison to the Evaluation Guideline value of 20,000 ug/L (4 day average)(National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123602, Alkalinity as CaCO3
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207263
 
Pollutant: Alkalinity as CaCO3
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 Perennial Stream Surveys data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3.
Data Reference: Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.
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: Alkalinity as CaCO3 levels were assessed for the protection of freshwater aquatic life by comparison to the Evaluation Guideline value of 20,000 ug/L (4 day average)(National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: The samples were collected at 1 monitoring site (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123584
Region 5     
Cosumnes River, North Fork
 
Pollutant: Antimony
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123584, Antimony
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199771
 
Pollutant: Antimony
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Antimony.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life.
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: The USEPA National Recommended Water Quality Criteria for antimony states that toxicity to algae occurs at 610 ug/l.
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123584, Antimony
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199830
 
Pollutant: Antimony
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Antimony.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Antimony criteria for the protection of human health from consumption of organisms only is 4,300 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123584, Antimony
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199957
 
Pollutant: Antimony
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Antimony.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for antimony incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.006 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123584, Antimony
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199897
 
Pollutant: Antimony
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Antimony.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Antimony criteria for the protection of human health from consumption of organisms only is 4,300 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123584, Antimony
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199835
 
Pollutant: Antimony
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Antimony.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for antimony incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.006 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123584, Antimony
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199930
 
Pollutant: Antimony
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Antimony.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life.
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: The USEPA National Recommended Water Quality Criteria for antimony states that toxicity to algae occurs at 610 ug/l.
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123585
Region 5     
Cosumnes River, North Fork
 
Pollutant: Arsenic
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123585, Arsenic
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200007
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Arsenic.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for arsenic incorporated by reference in the Basin Plan is 0.010 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123585, Arsenic
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200018
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Arsenic.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for arsenic incorporated by reference in the Basin Plan is 0.010 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123585, Arsenic
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199858
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Arsenic.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for dissolved arsenic is 150 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123585, Arsenic
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199762
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Arsenic.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater for dissolved arsenic is 150 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123586
Region 5     
Cosumnes River, North Fork
 
Pollutant: Barium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123586, Barium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199624
 
Pollutant: Barium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Barium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for barium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123586, Barium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199655
 
Pollutant: Barium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Barium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for barium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
131819
Region 5     
Cosumnes River, North Fork
 
Pollutant: Benthic Community Effects
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: Benthic Community Effects are being considered for placement on the CWA section 303(d) List under sections 3.9 of the Listing Policy. Under section 3.9, additional lines of evidence (LOEs) associating the Benthic Community Effects decision with a water or sediment concentration of pollutants other than benthic-macroinvertebrate bioassessment or habitat assessment LOEs are necessary to place a water body on the 303(d) List for Benthic Community Effects.

One line of evidence evaluating benthic-macroinvertebrate bioassessment data is available in the administrative record to assess this indicator. Zero of one benthic-macroinvertebrate samples exceed the California Stream Condition Index (CSCI) impairment threshold. These data indicate that the waterbody is likely unimpaired for Benthic Community Effects and therefore no other pollutant LOEs need be associated with this decision at this time.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing Benthic Community Effects in this waterbody segment on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of one benthic-macroinvertebrate bioassessment samples had CSCI scores below 0.79. Therefore, this water body is not exceeding the water quality threshold for the protection of the COLD beneficial use. The available information indicates that the waterbody/pollutant combination should not be placed on the 303(d) List of impaired waters at this time.
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:
 
 
Line of Evidence (LOE) for Decision ID 131819, Benthic Community Effects
Region 5     
Cosumnes River, North Fork
 
LOE ID: 232104
 
Pollutant: Benthic-Macroinvertebrate Bioassessments
LOE Subgroup: Population/Community Degradation
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 1
Number of Exceedances: 0
 
Data and Information Type: Benthic macroinvertebrate surveys
Data Used to Assess Water Quality: Water Board staff assessed data for 532PS0715 to determine beneficial use support and the results are as follows: 0 of 1 samples exceeded the threshold. CSCI scores were from 0.994793278 to 0.994793278.
Data Reference: California Stream Condition Index (CSCI) Scores for the 2020 Integrated Report for Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. Region 5 Basin Plan
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: The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use.  
Guideline Reference: Bioassessment in complex environments: designing an index for consistent meaning in different settings
 
Spatial Representation: Samples were collected from station 532PS0715.
Temporal Representation: Samples were collected from 6/11/2015 to 6/11/2015.
Environmental Conditions:
QAPP Information: Data collected following SWAMP QA protocols.
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123587
Region 5     
Cosumnes River, North Fork
 
Pollutant: Beryllium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123587, Beryllium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199873
 
Pollutant: Beryllium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Beryllium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for beryllium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.004 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123587, Beryllium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199906
 
Pollutant: Beryllium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Beryllium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life.
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: The USEPA National Recommended Water Quality Criteria chronic toxicity threshold for beryllium for freshwater aquatic life protection is 5.3 ug/l (4 day average)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123587, Beryllium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199840
 
Pollutant: Beryllium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Beryllium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for beryllium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.004 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123587, Beryllium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199905
 
Pollutant: Beryllium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Beryllium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life.
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: The USEPA National Recommended Water Quality Criteria chronic toxicity threshold for beryllium for freshwater aquatic life protection is 5.3 ug/l (4 day average)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123588
Region 5     
Cosumnes River, North Fork
 
Pollutant: Boron
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123588, Boron
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200234
 
Pollutant: Boron
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Agricultural Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Boron.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.
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: Water Quality for Agriculture, published by the Food and Agriculture Organization of the United Nations in 1985, contains criteria protective of various agricultural uses of water, including irrigation of various types of crops and stock watering. At or below the limits presented in the Water Quality Goals tables, agricultural uses of water should not be limited. These criteria were used to translate narrative water quality objectives for chemical constituents that prohibit chemicals in concentrations that would impair agricultural uses of water. The criteria for boron is 700 ug/L (0.7 mg/L).
Guideline Reference: Water Quality for Agriculture, Food and Agriculture Organization of the United Nations - Irrigation and Drainage Paper No. 29, Rev 1, Rome (1985)
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123589
Region 5     
Cosumnes River, North Fork
 
Pollutant: Cadmium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123589, Cadmium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200226
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Cadmium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for cadmium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.005 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123589, Cadmium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200344
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Cadmium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for cadmium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.005 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123589, Cadmium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200197
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Cadmium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
119588
Region 5     
Cosumnes River, North Fork
 
Pollutant: Chloride
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.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for conventional or other pollutants (Table 3.2 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 119588, Chloride
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200867
 
Pollutant: Chloride
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Chloride.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for chloride incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 250 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 119588, Chloride
Region 5     
Cosumnes River, North Fork
 
LOE ID: 187315
 
Pollutant: Chloride
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 Perennial Stream Surveys data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride.
Data Reference: Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for chloride incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 250 mg/L
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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123603
Region 5     
Cosumnes River, North Fork
 
Pollutant: Chromium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollution
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123603, Chromium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200561
 
Pollutant: Chromium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Chromium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for total chromium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.05 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123603, Chromium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200468
 
Pollutant: Chromium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Chromium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123603, Chromium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200589
 
Pollutant: Chromium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Chromium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for total chromium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.05 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
123590
Region 5     
Cosumnes River, North Fork
 
Pollutant: Copper
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: Pollution
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123590, Copper
Region 5     
Cosumnes River, North Fork
 
LOE ID: 201164
 
Pollutant: Copper
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Copper.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for copper incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1.0 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123590, Copper
Region 5     
Cosumnes River, North Fork
 
LOE ID: 200983
 
Pollutant: Copper
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Copper.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for copper incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1.0 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123590, Copper
Region 5     
Cosumnes River, North Fork
 
LOE ID: 201158
 
Pollutant: Copper
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Copper.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
126894
Region 5     
Cosumnes River, North Fork
 
Pollutant: Indicator Bacteria
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 126894, Indicator Bacteria
Region 5     
Cosumnes River, North Fork
 
LOE ID: 61794
 
Pollutant: Escherichia coli (E. coli)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 7
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: SWAMP data indicates that 0 of 7 sample results exceed the evaluation guideline value for Escherichia coli.
Data Reference: RWB5 Safe to Swim FY0708 FY0809
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Central Valley Region, Sacramento River and San Joaquin River Basins)
Objective/Criterion Reference: Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins. 4th ed
 
Evaluation Guideline: The U.S. EPA recommended objective for a single-sample maximum allowable density of E. coli in freshwater designated-beach areas is 235 MPN/100mL.
Guideline Reference: 40 CFR Part 131 Water Quality Standards for Coastal and Great Lakes Recreation Waters; Final Rule [Federal Register / Vol. 69, No. 220]
 
Spatial Representation: Data for this line of evidence was collected at one monitoring site [ Cosumnes River @ Gold Beach Park - 532ELD003]
Temporal Representation: Data was collected over the time period 8/30/2007-9/3/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The SWAMP QAPP (2008) was followed.
QAPP Information Reference(s): Surface Water Ambient Monitoring Program Quality Assurance Program Plan
 
Line of Evidence (LOE) for Decision ID 126894, Indicator Bacteria
Region 5     
Cosumnes River, North Fork
 
LOE ID: 194580
 
Pollutant: Escherichia coli (E. coli)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 3
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed data for Cosumnes River, North Fork to determine beneficial use support and the results are as follows: 3 of the 9 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The bacteria water quality objective applicable to all waters, except Lake Tahoe, where the salinity is less than 10 parts per thousand (ppth) 95 percent or more of the time is a STATISTICAL THRESHOLD VALUE (STV) of 320 cfu/100 mL not to be exceeded more than 10 percent of the time (calculated monthly).
Objective/Criterion 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
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site(s), station(s): 532ELD003
Temporal Representation: The samples were collected between the days of 2013-06-27 and 2014-09-24 .
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123591
Region 5     
Cosumnes River, North Fork
 
Pollutant: Iron
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: Pollution
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123591, Iron
Region 5     
Cosumnes River, North Fork
 
LOE ID: 201567
 
Pollutant: Iron
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Iron.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for iron incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.3 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123591, Iron
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202257
 
Pollutant: Iron
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Iron.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life.
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: National Recommended Water Quality Criteria Continuous Concentrations are intended protect freshwater aquatic organisms from chronic exposures and are expressed as 4-day average concentrations. The evaluation guideline for Iron is 1,000 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123591, Iron
Region 5     
Cosumnes River, North Fork
 
LOE ID: 201568
 
Pollutant: Iron
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Iron.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life.
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: National Recommended Water Quality Criteria Continuous Concentrations are intended protect freshwater aquatic organisms from chronic exposures and are expressed as 4-day average concentrations. The evaluation guideline for Iron is 1,000 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123591, Iron
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202200
 
Pollutant: Iron
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Iron.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for iron incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.3 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
123592
Region 5     
Cosumnes River, North Fork
 
Pollutant: Lead
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: Pollution
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123592, Lead
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202152
 
Pollutant: Lead
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Lead.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123592, Lead
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202033
 
Pollutant: Lead
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Lead.
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: At a minimum, water designated for use as MUN shall not contain lead in excess of 0.015 mg/l.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123592, Lead
Region 5     
Cosumnes River, North Fork
 
LOE ID: 201971
 
Pollutant: Lead
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Lead.
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: At a minimum, water designated for use as MUN shall not contain lead in excess of 0.015 mg/l.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
123593
Region 5     
Cosumnes River, North Fork
 
Pollutant: Manganese
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination.

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: 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 123593, Manganese
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202191
 
Pollutant: Manganese
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Manganese.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for manganese incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.05 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123593, Manganese
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202134
 
Pollutant: Manganese
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Manganese.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for manganese incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.05 mg/L
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
130902
Region 5     
Cosumnes River, North Fork
 
Pollutant: Mercury
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for toxicants (Table 3.1 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 130902, Mercury
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202728
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 60
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 60 samples exceeded the water quality threshold for Mercury.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan for the Sacramento and San Joaquin River Basins).
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: National Recommended Water Quality Criteria Continuous Concentrations (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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 130902, Mercury
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202703
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 60
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 60 samples exceeded the water quality threshold for Mercury.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The mercury criteria for the protection of human health from the consumption of water and organisms 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 130902, Mercury
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202367
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 60
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 60 samples exceeded the water quality threshold for Mercury.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The mercury criteria for the protection of human health from consumption of organisms only is 0.051 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123594
Region 5     
Cosumnes River, North Fork
 
Pollutant: Nickel
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination.

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: 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 123594, Nickel
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202836
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Nickel.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for nickel incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.1 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123594, Nickel
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202934
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Nickel.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Nickel criteria for the protection of human health from consumption of organisms only is 4,600 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123594, Nickel
Region 5     
Cosumnes River, North Fork
 
LOE ID: 202960
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Nickel.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123594, Nickel
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203127
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Nickel.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Nickel criteria for the protection of human health from consumption of organisms only is 4,600 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123594, Nickel
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203208
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Nickel.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for nickel incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.1 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
119589
Region 5     
Cosumnes River, North Fork
 
Pollutant: Nitrate/Nitrite (Nitrite + Nitrate as N)
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.
 
 
Line of Evidence (LOE) for Decision ID 119589, Nitrate/Nitrite (Nitrite + Nitrate as N)
Region 5     
Cosumnes River, North Fork
 
LOE ID: 192333
 
Pollutant: Nitrate/Nitrite (Nitrite + Nitrate as N)
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 Perennial Stream Surveys data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Nitrate + Nitrite as N.
Data Reference: Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Maximum Contaminant Level for nitrate + nitrite (as N) incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 10 mg/L (California Code of Regulations, Title 22).
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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123597
Region 5     
Cosumnes River, North Fork
 
Pollutant: Selenium
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 3.1 of the Listing Policy.

A total of four lines of evidence are available in the administrative record to assess this pollutant. A total of zero of 61 samples exceed the dissolved fraction evaluation guideline and zero of 54 samples exceed the total fraction evaluation guideline for the cold freshwater habitat beneficial use and zero of 61 samples exceed the dissolved fraction evaluation guideline and zero of 54 samples exceed the total fraction evaluation guideline for the municipal and domestic supply beneficial use.

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 zero of 61 samples exceed the dissolved fraction evaluation guideline and zero of 54 samples exceed the total fraction evaluation guideline for the cold freshwater habitat beneficial use and zero of 61 samples exceed the dissolved fraction evaluation guideline and zero of 54 samples exceed the total fraction evaluation guideline for the municipal and domestic supply beneficial use. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123597, Selenium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205288
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Selenium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123597, Selenium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205228
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Selenium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for selenium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.05 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123597, Selenium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205227
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Selenium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Primary Maximum Contaminant Level for selenium incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.05 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123597, Selenium
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205072
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Selenium.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
123598
Region 5     
Cosumnes River, North Fork
 
Pollutant: Silver
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 3.1 of the Listing Policy.

A total of three lines of evidence are available in the administrative record to assess this pollutant. A total of zero of 61 samples exceed the water quality objective for the cold freshwater habitat beneficial use and zero of 61 samples exceed the dissolved fraction water quality objective and zero of 54 samples exceed the total fraction water quality objective for the municipal and domestic supply beneficial use.

After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed 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 zero of 61 samples exceed the water quality objective for the cold freshwater habitat beneficial use and zero of 61 samples exceed the dissolved fraction water quality objective and zero of 54 samples exceed the total fraction water quality objective for the municipal and domestic supply beneficial use. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123598, Silver
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205327
 
Pollutant: Silver
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Silver.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion maximum concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123598, Silver
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205232
 
Pollutant: Silver
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Silver.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for silver incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.1 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123598, Silver
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205324
 
Pollutant: Silver
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Silver.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for silver incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.1 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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.
 
 
DECISION ID
126385
Region 5     
Cosumnes River, North Fork
 
Pollutant: Specific Conductivity
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: 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 126385, Specific Conductivity
Region 5     
Cosumnes River, North Fork
 
LOE ID: 211775
 
Pollutant: Specific Conductivity
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 RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for SpecificConductivity.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Secondary MCL that is incorporated by reference in the Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin for specific conductance is 900 uS/cm.
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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 126385, Specific Conductivity
Region 5     
Cosumnes River, North Fork
 
LOE ID: 211561
 
Pollutant: Specific Conductivity
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 Perennial Stream Surveys data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for SpecificConductivity.
Data Reference: Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Secondary MCL that is incorporated by reference in the Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin for specific conductance is 900 uS/cm.
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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 126385, Specific Conductivity
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229911
 
Pollutant: Specific Conductivity
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 17
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 17 samples exceeded the water quality threshold for SpecificConductivity.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Secondary MCL that is incorporated by reference in the Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin for specific conductance is 900 uS/cm.
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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 126385, Specific Conductivity
Region 5     
Cosumnes River, North Fork
 
LOE ID: 61791
 
Pollutant: Specific Conductivity
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: SWAMP data indicates that 0 of 6 sample results exceed the criterion for electrical conductivity.
Data Reference: RWB5 Safe to Swim FY0708 FY0809
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Levels for electrical conductivity provide a range of values including a recommended level (900 uS/cm), an upper level (1,600 uS/cm) and a short-term level (2,200 uS/cm). The recommended level of 900 uS/cm was used as it is protective of all drinking water uses.
Objective/Criterion Reference: Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins. 4th ed
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence was collected at one monitoring site [ Cosumnes River @ Gold Beach Park - 532ELD003]
Temporal Representation: Data was collected over the time period 8/30/2007-9/3/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The SWAMP QAMP (2002) was used for data before Septemper 1, 2008 and SWAMP QAPP (2008) was thereafter.
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)
QAPP Information Reference(s): Surface Water Ambient Monitoring Program Quality Assurance Program Plan
 
 
DECISION ID
119590
Region 5     
Cosumnes River, North Fork
 
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: 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 two lines of evidence are available in the administrative record to assess this pollutant. A total of zero of 62 samples exceed the water quality objective for the municipal and domestic supply beneficial use.

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 zero of 62 samples exceed the water quality objective for the municipal and domestic supply 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 because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded.
 
 
Line of Evidence (LOE) for Decision ID 119590, Sulfates
Region 5     
Cosumnes River, North Fork
 
LOE ID: 204935
 
Pollutant: Sulfates
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Sulfate.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for sulfate incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 250 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 119590, Sulfates
Region 5     
Cosumnes River, North Fork
 
LOE ID: 194032
 
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 Perennial Stream Surveys data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Sulfate.
Data Reference: Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for sulfate incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 250 mg/L.
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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123599
Region 5     
Cosumnes River, North Fork
 
Pollutant: Temperature, water
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2018)
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. 37 lines of evidence are available in the administrative record to assess this pollutant.

Pursuant to section 6.1.5.9 of the Listing Policy, this assessment utilized the upper limit of the optimal temperature range for rainbow trout for growth and completion of most life stages to interpret the narrative water quality objective for temperature. 32 of 141 samples exceeded the evaluation guideline for COLD and Fish Spawning.

However, the available data are insufficient to satisfy the Listing Policy requirements for spatial and temporal representation (sections 6.1.5.2 and 6.1.5.3). The surface water grab samples collected did not provide sufficient temporal and spatial representation to determine if temperature conditions experienced by aquatic life were within the optimal temperature range throughout the entire water column or the length of time temperature conditions may have exceeded the optimal temperature range.

Available information for this waterbody-pollutant combination is insufficient to determine whether the aquatic beneficial use is supported. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available for this Integrated Report cycle indicating that standards are not met.

However, the exceedances of the evaluation guideline indicate that beneficial uses may be threatened. This decision will be reevaluated in the next Integrated Report cycle as more data and information become available. Additional data and information may include information demonstrating that sample location(s) are representative of conditions throughout the waterbody, data from additional sampling locations, continuous monitoring data collected in the waterbody, waterbody-specific information on sensitive resident species, their life stage time frames, and the appropriate temperature thresholds necessary to support each life stage.
 
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205751
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 12
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 12 samples exceeded the water quality threshold for Temperature.
Data Reference: WQX 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: 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: 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 (CALWR_WQX-B1210000)
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 212579
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 1
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Temperature.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 212275
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
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 Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 212490
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
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 RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Temperature.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229831
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 17
Number of Exceedances: 15
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 15 of 17 samples exceeded the water quality threshold for Temperature.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230518
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 9 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: 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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229779
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 10
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 10 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: 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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230515
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
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 ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork 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: 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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 231089
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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: 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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230318
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 9 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: 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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230172
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
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 EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork 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: 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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-05-20
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230279
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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: 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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230157
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 10
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 10 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: 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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230299
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 9
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 9 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: 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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230218
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
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 ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork 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: 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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230238
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 10
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 10 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: 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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229775
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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: 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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230555
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
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 EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork 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: 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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-05-20
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229851
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 17
Number of Exceedances: 15
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 15 of 17 samples exceeded the water quality threshold for Temperature.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229800
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
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 ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 7 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: 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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-22
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230136
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 8 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: 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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230091
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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: 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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230306
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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: 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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230211
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 9
Number of Exceedances: 0
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 9 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: 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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230301
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 4
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 8 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: 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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230497
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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: 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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230514
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 4
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 8 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: 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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 231005
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
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 ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 7 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: 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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-22
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230516
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 10
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 10 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: 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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 231108
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 8 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: 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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229755
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 0
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 9 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: 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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230517
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 4
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 4 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: 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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230436
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 4
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 4 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: 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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 205580
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 12
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 12 samples exceeded the water quality threshold for Temperature.
Data Reference: WQX 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: 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: 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 (CALWR_WQX-B1210000)
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 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 212583
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
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 Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 61798
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 6
Number of Exceedances: 6
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: SWAMP data indicates that 6 of 6 sample results exceed the evaluation guideline value for Water Temperature.
Data Reference: RWB5 Safe to Swim FY0708 FY0809
 
SWAMP Data: 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. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin River 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. 4th ed
 
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 (1976)
 
Spatial Representation: Data for this line of evidence was collected at one monitoring site [ Cosumnes River @ Gold Beach Park - 532ELD003]
Temporal Representation: Data was collected over the time period 8/30/2007-9/3/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The SWAMP QAMP (2002) was used for data before Septemper 1, 2008 and SWAMP QAPP (2008) was thereafter.
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)
QAPP Information Reference(s): Surface Water Ambient Monitoring Program Quality Assurance Program Plan
 
Line of Evidence (LOE) for Decision ID 123599, Temperature, water
Region 5     
Cosumnes River, North Fork
 
LOE ID: 230346
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Fish Spawning
 
Number of Samples: 9
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 9 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: 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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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
 
 
DECISION ID
123600
Region 5     
Cosumnes River, North Fork
 
Pollutant: Total Dissolved Solids
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.

Zero samples exceeded the objectives, guidelines, or criteria for beneficial uses applicable to this water segment-pollutant combination, which is less than the minimum number of exceedances needed to place the water segment on the section CWA section 303(d) List for conventional or other pollutants (Table 3.2 of the Listing Policy).

The data used satisfies the data quality requirements (section 6.1.4) and data quantity requirements (section 6.1.5) of the Listing Policy.

Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List.
 
Regional Board Decision Recommendation: 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 123600, Total Dissolved Solids
Region 5     
Cosumnes River, North Fork
 
LOE ID: 206948
 
Pollutant: Total Dissolved Solids
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Total Dissolved Solids.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for total dissolved solids incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 500 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123600, Total Dissolved Solids
Region 5     
Cosumnes River, North Fork
 
LOE ID: 206915
 
Pollutant: Total Dissolved Solids
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Total Dissolved Solids.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for total dissolved solids incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 500 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123601
Region 5     
Cosumnes River, North Fork
 
Pollutant: Zinc
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 3.1 of the Listing Policy.

A total of three lines of evidence are available in the administrative record to assess this pollutant. A total of zero of 61 samples exceed the water quality objective for the cold freshwater habitat beneficial use and zero of 61 samples exceed the dissolved fraction water quality objective and zero of 54 samples exceed the total fraction water quality objective for the municipal and domestic supply beneficial use.

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 zero of 61 samples exceed the water quality objective for the cold freshwater habitat beneficial use and zero of 61 samples exceed the dissolved fraction water quality objective and zero of 54 samples exceed the total fraction water quality objective for the municipal and domestic supply beneficial use. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation:
 
 
Line of Evidence (LOE) for Decision ID 123601, Zinc
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207064
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 54 samples exceeded the water quality threshold for Zinc.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for zinc incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 5.0 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123601, Zinc
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207087
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Zinc.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for zinc incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 5.0 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123601, Zinc
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207132
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Zinc.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in freshwater. The criterion in freshwater is hardness dependent for each sample and varies based on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for the metals criterion.
Objective/Criterion Reference: Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123596
Region 5     
Cosumnes River, North Fork
 
Pollutant: pH
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2018)
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

Sixty lines of evidence are available in the administrative record to assess this pollutant. 14 of the 206 samples exceeded the OBJECTIVE for COLD and REC-1. 14 of the 201 samples exceeded the OBJECTIVE for REC-2. Zero of the 5 samples exceeded the OBJECTIVE for MUN.

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. 14 of the 206 samples exceeded the OBJECTIVE for COLD and REC-1. 14 of the 201 samples exceeded the OBJECTIVE for REC-2. This does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. Zero of the 5 samples exceeded the OBJECTIVE for MUN. 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 applicable water quality standards for the pollutant are not exceeded.
 
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228380
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229210
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 61797
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 5
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: SWAMP data indicates that 0 of 5 sample results exceed the criterion for pH.
Data Reference: RWB5 Safe to Swim FY0708 FY0809
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: pH should not be lower than 6.5 or higher than 8.5. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin River 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. 4th ed
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence was collected at one monitoring site [ Cosumnes River @ Gold Beach Park - 532ELD003]
Temporal Representation: Data was collected over the time period 8/30/2007-9/3/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The SWAMP QAPP (2008) was followed.
QAPP Information Reference(s): Surface Water Ambient Monitoring Program Quality Assurance Program Plan
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 61796
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 5
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: SWAMP data indicates that 0 of 5 sample results exceed the criterion for pH.
Data Reference: RWB5 Safe to Swim FY0708 FY0809
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: pH should not be lower than 6.5 or higher than 8.5. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin River 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. 4th ed
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence was collected at one monitoring site [ Cosumnes River @ Gold Beach Park - 532ELD003]
Temporal Representation: Data was collected over the time period 8/30/2007-9/3/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The SWAMP QAPP (2008) was followed.
QAPP Information Reference(s): Surface Water Ambient Monitoring Program Quality Assurance Program Plan
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 61795
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 5
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: SWAMP data indicates that 0 of 5 sample results exceed the criterion for pH.
Data Reference: RWB5 Safe to Swim FY0708 FY0809
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: pH should not be lower than 6.5 or higher than 8.5. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin River 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. 4th ed
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence was collected at one monitoring site [ Cosumnes River @ Gold Beach Park - 532ELD003]
Temporal Representation: Data was collected over the time period 8/30/2007-9/3/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The SWAMP QAPP (2008) was followed.
QAPP Information Reference(s): Surface Water Ambient Monitoring Program Quality Assurance Program Plan
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203989
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 12
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 12 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: 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 (CALWR_WQX-B1210000)
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 210762
 
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 RWB5 Monitoring data for Cosumnes River, North Fork 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, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203447
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 60
Number of Exceedances: 4
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 60 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: 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 209564
 
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 Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203536
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 60
Number of Exceedances: 4
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 60 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: 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 209648
 
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 RWB5 Monitoring data for Cosumnes River, North Fork 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, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 210651
 
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 Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203675
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 12
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 12 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: 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 (CALWR_WQX-B1210000)
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203876
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 60
Number of Exceedances: 4
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 60 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: 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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 203875
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 12
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 12 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: 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 (CALWR_WQX-B1210000)
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 209300
 
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 Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 209204
 
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 RWB5 Monitoring data for Cosumnes River, North Fork 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, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228752
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 4
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for pH.
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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228960
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 5
Number of Exceedances: 2
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 5 samples exceeded the water quality threshold for pH.
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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229388
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
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 ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 7 samples exceeded the water quality threshold for pH.
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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-22
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228987
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 10
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for pH.
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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229483
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229579
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228620
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228803
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229209
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228988
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228553
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229289
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 5
Number of Exceedances: 2
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 5 samples exceeded the water quality threshold for pH.
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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228694
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228786
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
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 ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 7 samples exceeded the water quality threshold for pH.
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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-22
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228564
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228788
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228612
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228428
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 4
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for pH.
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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229180
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 10
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for pH.
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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228667
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229176
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228492
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228461
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228751
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229104
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229105
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228792
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228723
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 9
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229160
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 17
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 17 samples exceeded the water quality threshold for pH.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229178
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228632
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 17
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 17 samples exceeded the water quality threshold for pH.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228521
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 4
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for pH.
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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229103
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 5
Number of Exceedances: 2
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 5 samples exceeded the water quality threshold for pH.
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: 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229182
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229144
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228556
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228931
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 7
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 7 samples exceeded the water quality threshold for pH.
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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-22
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228551
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for pH.
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: 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228379
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 10
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for pH.
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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-09-16
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 228756
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229564
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229672
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for pH.
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: 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123596, pH
Region 5     
Cosumnes River, North Fork
 
LOE ID: 229237
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Non-Contact Recreation
 
Number of Samples: 17
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 17 samples exceeded the water quality threshold for pH.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
 
DECISION ID
123604
Region 5     
Cosumnes River, North Fork
 
Pollutant: Aluminum
Final Listing Decision: List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Sources: A Source Unknown
Expected TMDL Completion Date: 2035
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant for Cold Freshwater Habitat (COLD) and Municipal and Domestic Supply (MUN). Nineteen of the 54 samples exceed the guideline for COLD. Zero of the 61 samples, reported as a dissolved concentration, exceed the water quality objective for the Municipal and Domestic Supply use. The Basin Plan establishes an appropriate method for assessing data according to secondary MCLs, which includes evaluating whole water concentrations after a sample is filtered. In the absence of results from properly filtered samples, only the dissolved fraction will be used to determine impairment until this method is fully implemented. Whole water concentrations, or data with an unreported fraction, were not considered in this assessment.

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. Nineteen of the 54 samples exceed the guideline for COLD. Zero of the 61 samples, reported as a dissolved concentration, exceed the water quality objective for the Municipal and Domestic Supply use. 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:
 
 
Line of Evidence (LOE) for Decision ID 123604, Aluminum
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199433
 
Pollutant: Aluminum
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 54
Number of Exceedances: 3
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 54 samples exceeded the water quality threshold for Aluminum.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for aluminum incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.2 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123604, Aluminum
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199093
 
Pollutant: Aluminum
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 54
Number of Exceedances: 19
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 19 of 54 samples exceeded the water quality threshold for Aluminum.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.
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: Aluminum levels were assessed for the protection of freshwater aquatic life by comparison to the Evaluation Guideline value of 87 ug/L (4 day average) (National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: The samples were collected at 1 monitoring site (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2011-04-20 and 2015-10-28
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 123604, Aluminum
Region 5     
Cosumnes River, North Fork
 
LOE ID: 199176
 
Pollutant: Aluminum
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Municipal & Domestic Supply
 
Number of Samples: 61
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed STORET data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 61 samples exceeded the water quality threshold for Aluminum.
Data Reference: WQX data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Secondary Maximum Contaminant Level for aluminum incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 0.2 mg/L.
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 (CALWR_WQX-TA001000)
Temporal Representation: The samples were collected between the dates of 2010-09-15 and 2015-10-28
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.
 
 
DECISION ID
123595
Region 5     
Cosumnes River, North Fork
 
Pollutant: Oxygen, Dissolved
Final Listing Decision: List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Sources: A Source Unknown
Expected TMDL Completion Date: 2035
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 34 lines of evidence are available in the administrative record to assess this pollutant. A total of 31 of 131 samples exceed the water quality objective for the cold freshwater habitat beneficial use and 31 of 131 samples exceed the water quality objective for the warm freshwater habitat beneficial use.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA section 303(d) List.

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 31 of 131 samples exceed the water quality objective for the cold freshwater habitat beneficial use and 31 of 131 samples exceed the water quality objective for the warm freshwater habitat beneficial use. This exceeds 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 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:
 
 
Line of Evidence (LOE) for Decision ID 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207532
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 9
Number of Exceedances: 0
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 9 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207800
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207804
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207868
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 10
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 10 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208427
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 9
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 9 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207827
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 1
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork 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, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207969
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208494
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 4
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 4 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207748
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 9 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 COLD 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207845
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 17
Number of Exceedances: 4
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 17 samples exceeded the water quality threshold for Oxygen, Dissolved.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208403
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 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 COLD 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207787
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 6
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 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 COLD 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207772
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 10
Number of Exceedances: 3
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 3 of 10 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 COLD 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2015-06-19 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208431
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 7
Number of Exceedances: 4
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 7 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 COLD 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207790
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 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 COLD 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207741
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 10
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 10 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 COLD 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208432
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 6
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 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 COLD 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-07-22 and 2018-09-22
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208893
 
Pollutant: Oxygen, Dissolved
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 Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208407
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 4
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 8 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 COLD 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207843
 
Pollutant: Oxygen, Dissolved
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 RWB5 Monitoring data for Cosumnes River, North Fork 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, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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: 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 (532ELD007)
Temporal Representation: The samples were collected between the dates of 2017-06-14 and 2017-06-14
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208892
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 0
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 9 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 COLD 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 (532COS003)
Temporal Representation: The samples were collected between the dates of 2015-06-20 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207773
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 4
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed EDTU Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 4 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 COLD 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2016-06-18 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 209023
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 10
Number of Exceedances: 5
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 5 of 10 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 COLD 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208718
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 9
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 9 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 COLD 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-17
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207862
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 6
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 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 (532COS005)
Temporal Representation: The samples were collected between the dates of 2017-07-22 and 2018-09-22
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208333
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 6
Number of Exceedances: 1
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 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 (532COS006)
Temporal Representation: The samples were collected between the dates of 2017-06-17 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207797
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 10
Number of Exceedances: 2
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 2 of 10 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2015-05-15 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207839
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 4
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 8 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208405
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Cold Freshwater Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 0 of 8 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 COLD 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 (532COS004)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207645
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 8
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed ARC Cosumnes River WQ Monitoring Program data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 1 of 8 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 (532COS002)
Temporal Representation: The samples were collected between the dates of 2017-06-16 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207859
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 17
Number of Exceedances: 4
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP RWB5 Monitoring data for Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 17 samples exceeded the water quality threshold for Oxygen, Dissolved.
Data Reference: Field, Habitat, Toxicity, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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 (532ELD003)
Temporal Representation: The samples were collected between the dates of 2010-09-02 and 2017-07-06
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program
 
Line of Evidence (LOE) for Decision ID 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 207846
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 7
Number of Exceedances: 4
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 4 of 7 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 (532COS001)
Temporal Representation: The samples were collected between the dates of 2017-07-21 and 2018-09-21
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208362
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 10
Number of Exceedances: 5
 
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 Cosumnes River, North Fork to determine beneficial use support and results are as follows: 5 of 10 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 (532COS007)
Temporal Representation: The samples were collected between the dates of 2015-05-16 and 2016-09-16
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 123595, Oxygen, Dissolved
Region 5     
Cosumnes River, North Fork
 
LOE ID: 208523
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Fish Spawning
 
Number of Samples: 1
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Water Board staff assessed SWAMP Perennial Stream Surveys data for Cosumnes River, North Fork 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, Water data for the 2020/2022 integrated report in Region 5.
 
SWAMP Data: 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 (532PS0715)
Temporal Representation: The samples were collected between the dates of 2015-06-11 and 2015-06-11
Environmental Conditions:
QAPP Information: SWAMP QAPrP 2008
QAPP Information Reference(s): Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program