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LOE ID: |
21907 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Asses Water Quality: |
One of the 13 samples tested with Pimephales promelas was toxic and violated the narrative toxicity objective. One sample collected at Deadman Creek at Gurr Road exhibited a statistically significant decrease in growth compared to the control. The sample date and percent of control (in parentheses) are as follows:13 June 2006 (88) |
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 two locations: Deadman Creek at Highway 59 and Deadman Creek at Gurr Road. |
Temporal Representation: |
Samples were collected from July 2004 to September 2006. |
Environmental Conditions: |
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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): |
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|
LOE ID: |
21908 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
12 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Asses Water Quality: |
None of 12 samples tested with Selenastrum capricornutum were toxic and violated the narrative toxicity objective. |
Data Reference: |
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 two locations: Deadman Creek at Highway 59 and Deadman Creek at Gurr Road. |
Temporal Representation: |
Samples were collected from July 2004 to September 2006. |
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): |
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|
LOE ID: |
21904 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
12 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Asses Water Quality: |
None of the 12 samples tested with Ceriodaphnia dubia were toxic and violated the narrative toxicity objective. |
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 two locations: Deadman Creek at Highway 59 and Deadman Creek at Gurr Road. |
Temporal Representation: |
Samples were collected from July 2004 to September 2006. |
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 |
13100 |
|
Pollutant: |
Chlorpyrifos |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2021 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
One lines of evidence are available in the administrative record to assess this pollutant. Two 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 in favor of 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. Two of 10 available 4-day average concentrations exceeded the 4-day average maximum concentration criterion and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. In addition, 2 of 10 available 1-hour average concentrations exceeded the 1-hour concentration criterion and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff 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. |
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SWRCB Board Decision / Staff Recommendation: |
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USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 13100 |
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LOE ID: |
21962 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Asses Water Quality: |
Ten water samples were collected from Deadman Creek in 2006 representing 10 4-day average concentrations and 10 1-hour average concentrations. These samples have appropriate method detection limits.2 of 10 four-day average concentrations exceeded the four day maximum concentration guideline of 0.015 µg/L.2 of 10 one-hour average concentrations exceeded the maximum 1-hour chlorpyrifos concentration of 0.025 µg/L.------------------------Three water samples were collected from Deadman Creek in 2004 and all three samples were non-detections. However, the method detection limit (0.0254 µg/L) was higher than the California Department of Fish and Game Hazard Assessment Criteria of 0.015 µg/L and 0.025 µg/L. These three samples were not included in this analysis. |
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: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses (CVRWQCB, 2007).All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life (CVRWQCB, 2007). |
Objective/Criterion Reference: |
Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
|
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: |
California Department of Fish and Game Hazard Assessment Criteria - 0.015 µg/L 4-day average and 0.025 µg/L 1-hour average (Siepmann and Finlayson, 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005). |
Guideline Reference: |
Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
|
Spatial Representation: |
Deadman Creek at Highway 59, Deadman Creek at Gurr Road |
Temporal Representation: |
Samples were collected from May through September 2006.Additional samples were collected from Deadman Creek at Gurr Road in 2004 that had method detection limits above the water quality criteria. |
Environmental Conditions: |
|
QAPP Information: |
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 |
13095 |
|
Pollutant: |
Escherichia coli (E. Coli) |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Source Unknown |
Expected TMDL Completion Date: |
2021 |
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.
One lines of evidence are available in the administrative record to assess this pollutant. Eight 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 in favor of 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. Eight of 13 samples exceed the E. Coli objective and 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 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
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SWRCB Board Decision / Staff Recommendation: |
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USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 13095 |