|
LOE ID: |
21844 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
0/4 and 0/4 (0/8 total) samples, respectively, tested with Ceriodaphnia dubia were toxic. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CVRWQCB, 2007) |
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: |
Statistically significant difference from control using a t-test with 4-day acute-style toxicity tests. |
Guideline Reference: |
Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fifth Edition. U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-821-R-02-012 |
|
Spatial Representation: |
Samples were collected from Pit River at Canby Bridge and Pittville Bridge. |
Temporal Representation: |
Samples were collected from April 2005 - January 2006 from both sites |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
|
LOE ID: |
21845 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
0/4 and 0/4 (0/8 total) samples, respectively, tested with Pimephales promelas were toxic. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CVRWQCB, 2007) |
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: |
Statistically significant difference from control using a t-test with 4-day acute-style toxicity tests. |
Guideline Reference: |
Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fifth Edition. U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-821-R-02-012 |
|
Spatial Representation: |
Samples were collected from Pit River at Canby Bridge and Pittville Bridge. |
Temporal Representation: |
Samples were collected from April 2005 - January 2006 from both sites |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
|
LOE ID: |
21846 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
1/4 and 0/4(1/8 total) samples, respectively, tested with Selenastrum capricornutum were toxic and violated the narrative toxicity objective.Samples collected at Canby Bridge on 18 April 2005 exhibited a statistically significant decrease in growth compared to the control (74% of the control). |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CVRWQCB, 2007) |
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: |
Statistically significant difference from control using a t-test with 4-day chronic-style toxicity tests. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fourth Edition. U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-821-R-02-013 |
|
Spatial Representation: |
Samples were collected from Pit River at Canby Bridge and Pittville Bridge. |
Temporal Representation: |
Samples were collected from April 2005 - January 2006 from both sites |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
DECISION ID |
13578 |
|
Pollutant: |
pH (high) |
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 |
|
Weight of Evidence: |
This pollutant is being considered for placement on the 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.
Two lines of evidence are available in the administrative record to assess this pollutant. Nine of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Nine of 82 available samples had pH values higher than the pH objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff 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. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 13578 |
|
LOE ID: |
21851 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
63 |
Number of Exceedances: |
6 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Pacific Gas and Electric Company's Water Quality and Water Temperature Monitoring Program collected 63 samples from May 2005 to November 2005. Six out of the 63 samples had a pH value higher than 8.5 and did not meet the evaluation objective. |
Data Reference: |
|
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: |
Measurement of pH within the range of 6.5 and 8.5. A high pH value is greater than 8.5 |
Guideline Reference: |
|
Spatial Representation: |
Samples were collected at five locations along Pit River:
1) Pit River at Pittville
2) Pit River downstream of Big Eddy
3) Pit River downstream of Pit River Falls
4) Pit River at the footbridge upstream of the Pit 1 Powerhouse
5) Pit River downstream of the Pit 1 Powerhouse |
Temporal Representation: |
May 2005 to November 2005. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with the Federal Energy Regulatory Commission License Article 401 and State Water Resources Control Board Certificate Conditions 16 and 17 |
QAPP Information Reference(s): |
|
|
LOE ID: |
21850 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
19 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
The Sacramento Valley Water Quality Coalition collected 19 samples from May 2005 to September 2006. Three of the 19 samples did not meet the evaluation objective and had a pH higher than 8.5. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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: |
Measurement of pH within the range of 6.5 and 8.5. A high pH value is greater than 8.5 |
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Pit River at Pittville Bridge. |
Temporal Representation: |
Sampling occurred from May 2005 to September 2006. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
DECISION ID |
7150 |
|
Pollutant: |
Nutrients |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture | Agriculture-grazing |
Expected TMDL Completion Date: |
2013 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
No new data were assessed for 2008. The decision has not changed. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 7150 |
|
LOE ID: |
4508 |
|
Pollutant: |
Nutrients |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. |
Data Reference: |
Placeholder reference pre-2006 303(d) |
|
Water Quality Objective/Criterion: |
Unspecified |
Objective/Criterion Reference: |
Placeholder reference pre-2006 303(d) |
|
Evaluation Guideline: |
Unspecified |
Guideline Reference: |
Placeholder reference pre-2006 303(d) |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
DECISION ID |
7152 |
|
Pollutant: |
Organic Enrichment/Low Dissolved Oxygen |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture | Agriculture-grazing |
Expected TMDL Completion Date: |
2013 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
No new data were assessed for 2008. The decision has not changed. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 7152 |
|
LOE ID: |
4509 |
|
Pollutant: |
Organic Enrichment/Low Dissolved Oxygen |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. |
Data Reference: |
Placeholder reference pre-2006 303(d) |
|
Water Quality Objective/Criterion: |
Unspecified |
Objective/Criterion Reference: |
Placeholder reference pre-2006 303(d) |
|
Evaluation Guideline: |
Unspecified |
Guideline Reference: |
Placeholder reference pre-2006 303(d) |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
DECISION ID |
7153 |
|
Pollutant: |
Temperature, water |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture | Agriculture-grazing |
Expected TMDL Completion Date: |
2013 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
No new data were assessed for 2008. The decision has not changed. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 7153 |
|
LOE ID: |
4510 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. |
Data Reference: |
Placeholder reference pre-2006 303(d) |
|
Water Quality Objective/Criterion: |
Unspecified |
Objective/Criterion Reference: |
Placeholder reference pre-2006 303(d) |
|
Evaluation Guideline: |
Unspecified |
Guideline Reference: |
Placeholder reference pre-2006 303(d) |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |