Water Body Name: | Bear River (Amador Co, Lower Bear River Reservoir to Mokelumne River, N Fork) |
Water Body ID: | CAR5326005020041209160741 |
Water Body Type: | River & Stream |
Lines of Evidence (LOEs) for Decision ID 4445 |
LOE ID: | 21655 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 165 |
Number of Exceedances: | 19 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Historical Water Quality Results for Analytical Laboratory Measurements 590 PG&E Company Mokelumne River Project (FERC 137, PG&E, 2003) collected 165 samples from March 2002 to July 2002. Nineteen out of 165 samples had pH values lower than 6.5 and thus did not meet the evaluation objective. |
Data Reference: | Mokelumne River Project (FERC 137) and Mokelumne Watershed correspondence and reports |
Water Quality Objective/Criterion: | The pH of water shall not be depressed below 6.5, raised above 8.5, or changed at any time more than 0.5 units from normal ambient pH. |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected from Bear River, below the Bear Reservoir from 8 locations: 1) Leakage flow from the right abutment of the Lower Bear River Reservoir Dam collected at the weir, 2) Leakage flow from the right abutment of the Lower Bear River Res. Dam collected below the weir, below the spillway confluence, 3 Outflow from the instream flow release pipe below Lower Bear River Reservoir, 4) Leakage flow from left abutment below Lower Bear River Res. Dam collected at the weir, 5) Spill over Lower Bear River Res. during one sampling event only, 6) Bear River below Lower Bear River Reservoir, 7) Bear River above gaging station, 8)Bear River above Confluence with Rattlesnake Creek |
Temporal Representation: | Sampling occurred from July 2000 to September 2004. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Well documented QA/QC including report on Certified Analytical Reports and chain-of-custody documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2717 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 77 |
Number of Exceedances: | 9 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Nine out of 77 samples had a pH below 6.5.
[Historical Water Quality Results for Analytical Laboratory Measurements PG&E Company Mokelumne River Project (FERC 137)]. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | "pH is not to be depressed below 6.5"- From the Central Valley Regional Water Quality Control Board's Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Bear River below Lower Bear River Reservoir. |
Temporal Representation: | Samples taken between 2000 and 2003. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including report on Certified Analytical Reports and chain-of-custody documentation. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 4444 |
LOE ID: | 27977 |
Pollutant: | Copper |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 11 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Eleven of 12 samples exceeded the California Toxics Rule 4-day average criteria for dissolved Copper. Data was collected for the Monitoring Summary for Lower Bear River Reservoir Dam Surface Water and Runoff. |
Data Reference: | Mokelumne River Project (FERC 137) and Mokelumne Watershed correspondence and reports |
Water Quality Objective/Criterion: | California Toxics Rule 4-day average criteria for dissolved Copper. |
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at Bear River below Lower Bear River Reservoir. |
Temporal Representation: | Samples were collected from August 2006 - May 2007. |
Environmental Conditions: | |
QAPP Information: | CH2M Hill. 2007. Monitoring Summary for Lower Bear River Reservoir Dam Surface Water and Runoff. October 2007. |
QAPP Information Reference(s): | |
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LOE ID: | 28189 |
Pollutant: | Copper |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 18 |
Number of Exceedances: | 13 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Thirteen of 18 samples exceeded the California Toxics Rule 4-day average criteria for dissolved Copper. Data was collected for the Mokelumne River Annual Water Quality Monitoring Results for Dissolved Copper. |
Data Reference: | Mokelumne River Project (FERC 137) and Mokelumne Watershed correspondence and reports |
Water Quality Objective/Criterion: | California Toxics Rule 4-day average criteria for dissolved Copper. |
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at Bear River below Lower Bear River Reservoir (BR1). |
Temporal Representation: | Samples were collected from March 2005 through September 2008. |
Environmental Conditions: | |
QAPP Information: | PG&E. Mokelumne River Project, FERC Project No. 137, Water Quality Monitoring Program Report. |
QAPP Information Reference(s): | |
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LOE ID: | 27976 |
Pollutant: | Copper |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 30 |
Number of Exceedances: | 28 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Twenty-eight of 30 samples exceeded the California Toxics Rule 4-day average criteria for dissolved Copper. Data was collected for the Mokelumne River Annual Water Quality Monitoring Results for Dissolved Copper. |
Data Reference: | Mokelumne River Project (FERC 137) and Mokelumne Watershed correspondence and reports |
Water Quality Objective/Criterion: | California Toxics Rule 4-day average criteria for dissolved Copper. |
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at Bear River below Lower Bear River Reservoir (BR1), Bear River above guaging station (BR2), Bear River above Confluence with Rattlesnake Creek (BR-RSC1), and Bear River below Confluence with Rattlesnake Creek (BR-RSC2). |
Temporal Representation: | Samples were collected from February 2003 through September 2003. |
Environmental Conditions: | |
QAPP Information: | PG&E. Mokelumne River Project, FERC Project No. 137, Water Quality Monitoring Program Report. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 4458 |
LOE ID: | 2726 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | One out of 7 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Leakage flow from the right abutment of the Lower Bear River Res. Dam collected below the weir, below the spillway confluence.
Latitude (38° 32.23 N); Longitude (120° 15.44 W). |
Temporal Representation: | Samples taken monthly from 5/15/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2727 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 7 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Outflow from the instream flow release pipe below Lower Bear River Res. upstream of station BR1.
Latitude (38° 32.21 N); Longitude (120° 15.40 W). |
Temporal Representation: | Samples taken monthly from 5/15/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2728 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 7 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Leakage flow from left abutment below Lower Bear River Res. Dam collected at the weir.
Latitude (38° 32.26 N); Longitude (120° 15.41 W). |
Temporal Representation: | Samples taken monthly from 6/11/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2729 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 7 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boar's Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Leakage flow from left abutment below Lower Bear River Res. Dam collected below the weir.
Latitude (38° 32.23 N); Longitude (120° 15.42W). |
Temporal Representation: | Samples taken monthly from 6/11/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2730 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 1 sample had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Spill over Lower Bear River Res. during one sampling event only.
Latitude (38° 32.26 N); Longitude (120° 15.44 W). |
Temporal Representation: | Samples taken on 6/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2731 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 5 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Bear River above gaging station.
Latitude (38° 29.604N); Longitude (120° 17.304 W). |
Temporal Representation: | Samples taken monthly from 8/29/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2721 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 1 sample had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Unnamed tributary on the upper west shore of Lower Bear River Reservoir (due to snowmelt).
Latitude (38° 33.23 N); Longitude (120° 13.30 W). |
Temporal Representation: | Sample taken 3/27/2002 |
Environmental Conditions: | Sample could not be taken on 4/23/2002 due to tributary being 'DRY'. |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2718 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 10 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Bear River below Lower Bear River Reservoir.
Latitude (38º 32.14 N); Longitude (120º 15.48W). |
Temporal Representation: | Samples taken monthly from 3/27/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2733 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 5 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Bear River below Confluence with Rattlesnake Creek.
Latitude (38° 31.035 N); Longitude (120° 16.105 W). |
Temporal Representation: | Samples taken monthly from 8/29/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2732 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | None of the 5 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan) |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Bear River above Confluence with Rattlesnake Creek
Latitude (38° 31.145 N) Longitude (120° 16.008 W) |
Temporal Representation: | Samples taken monthly 8/29/2002 to 12/11/2002 |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2720 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 3 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Zero out of 3 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Unnamed tributary entering midway up the west shore of Upper Bear River Reservoir.
Latitude (38° 33.90 N); Longitude (120° 13.23 W). |
Temporal Representation: | Samples taken monthly from 4/23/2002 to 6/11/2002. |
Environmental Conditions: | No sample was taken in July 2002 due to the tributary being 'DRY'. |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2725 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 7 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Leakage flow from the right abutment of the Lower Bear River Res. Dam collected at the weir.
Latitude (38° 32.30 N); Longitude (120° 15.48 W). |
Temporal Representation: | Samples taken monthly from 6/11/2002 to 12/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2722 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 1 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Unnamed tributary on the upper west shore of Lower Bear River Reservoir (due to snowmelt).
Latitude (38° 33.21 N); Longitude (120° 13.32 W). |
Temporal Representation: | Sample taken 3/27/2002. |
Environmental Conditions: | No sample could be taken 4/23/2002 due to the tributary being 'DRY'. |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2723 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Two out of 5 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Board's Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Upper Bear River Reservoir outflow to Lower Bear River Reservoir.
Latitude (38° 33.44 N); Longitude (120° 12.89 W). |
Temporal Representation: | Samples taken monthly from 3/27/2002 to 7/17/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
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LOE ID: | 2724 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
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: | Zero out of 4 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD)-From the Central Valley Regional Water Quality Control Boards Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Little Bear River on the northwest shore of Lower Bear River Reservoir.
Latitude (38° 33.57 N); Longitude (120° 14.86 W). |
Temporal Representation: | Samples taken monthly from 3/27/2002 to 6/11/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): | |
| |
LOE ID: | 2719 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | One out of 5 samples had a DO concentration below 7.0 mg/L. (PG&E, 2003). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Dissolved Oxygen (DO) concentrations shall not be reduced below 7.0 mg/L (for waters designated as COLD) - From the Central Valley Regional Water Quality Control Board's Water Quality Control Plan (Basin Plan). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Bear River above Upper Bear River Res., below its confluence with Tragedy Creek.
Latitude (38° 34.40 N) ; Longitude (120° 12.56W). |
Temporal Representation: | Samples taken monthly from 3/27/2002 to 7/17/2002. |
Environmental Conditions: | |
QAPP Information: | Well documented QA/QC including 174 page report on Certified Analytical Reports and Chain-of-Custody Documentation. |
QAPP Information Reference(s): |