Water Body Name: | Redwood Creek (San Mateo) |
Water Body ID: | CAR2044004020210407045027 |
Water Body Type: | River & Stream |
DECISION ID |
143854 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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: | |
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|||||
LOE ID: | 276898 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
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: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-05-28 and 2013-05-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
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LOE ID: | 277052 | ||||
Pollutant: | Alkalinity as CaCO3 | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2014 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). | ||||
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: 204R01268 (Redwood Creek at Kentfield Ave). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-05-06 and 2014-05-06 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
150947 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Ammonia |
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. |
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LOE ID: | 278486 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204RED010 (Redwood Creek at Maple St.). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
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LOE ID: | 277843 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-05-28 and 2013-05-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
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LOE ID: | 278335 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2020 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-05-19 and 2020-05-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. | ||||
QAPP Information Reference(s): | Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project | ||||
|
|||||
LOE ID: | 278333 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R02472 (Redwood Creek at Valota Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
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LOE ID: | 278774 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204RED050 (Redwood Creek at Menlo Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-01-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
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LOE ID: | 277859 | ||||
Pollutant: | Nitrogen, ammonia (Total Ammonia) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. | ||||
Objective/Criterion Reference: | Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R03496 (Redwood Creek at Menlo Golf Course). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
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LOE ID: | 279049 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204RED010 (Redwood Creek at Maple St.). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
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LOE ID: | 279154 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-05-28 and 2013-05-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
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LOE ID: | 279030 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204RED050 (Redwood Creek at Menlo Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-01-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
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LOE ID: | 279228 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2020 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-05-19 and 2020-05-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. | ||||
QAPP Information Reference(s): | Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project | ||||
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LOE ID: | 279195 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R02472 (Redwood Creek at Valota Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
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LOE ID: | 279012 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R03496 (Redwood Creek at Menlo Golf Course). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
DECISION ID |
143838 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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. |
|
|||||
LOE ID: | 269581 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Arsenic . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for arsenic is the probable effect concentration (PEC) of 33 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
154151 |
Region 2 |
Redwood Creek (San Mateo) |
||
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. Four line(s) of evidence evaluating benthic-macroinvertebrate bioassessment data is/are available in the administrative record to assess this indicator. Five of five benthic-macroinvertebrate samples exceed the California Stream Condition Index (CSCI) impairment threshold. However, a minimum of two benthic-macroinvertebrate samples are needed to assess listing status. 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. Five of five benthic-macroinvertebrate bioassessment samples had CSCI scores below 0.79. The available information is insufficient to determine whether the waterbody/pollutant combination should 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. 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: | |
|
|||||
LOE ID: | 306785 | ||||
Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
LOE Subgroup: | Population/Community Degradation | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | Benthic macroinvertebrate surveys | ||||
Data Used to Assess Water Quality: | Water Board staff assessed data for 204R00680 to determine beneficial use support and the results are as follows: 2 of 2 samples exceeded the threshold. CSCI scores were from 0.439966142 to 0.510184. | ||||
Data Reference: | California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
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 204R00680. | ||||
Temporal Representation: | Samples were collected from 5/28/2013 to 5/19/2020. | ||||
Environmental Conditions: | |||||
QAPP Information: | Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 306786 | ||||
Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
LOE Subgroup: | Population/Community Degradation | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | Benthic macroinvertebrate surveys | ||||
Data Used to Assess Water Quality: | Water Board staff assessed data for 204R01268 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.457871 to 0.457871. | ||||
Data Reference: | California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
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 204R01268. | ||||
Temporal Representation: | Samples were collected from 5/6/2014 to 5/6/2014. | ||||
Environmental Conditions: | |||||
QAPP Information: | Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 306595 | ||||
Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
LOE Subgroup: | Population/Community Degradation | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | Benthic macroinvertebrate surveys | ||||
Data Used to Assess Water Quality: | Water Board staff assessed data for 204R02472 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.542236816 to 0.542236816. | ||||
Data Reference: | California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
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 204R02472. | ||||
Temporal Representation: | Samples were collected from 5/22/2017 to 5/22/2017. | ||||
Environmental Conditions: | |||||
QAPP Information: | Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 306596 | ||||
Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
LOE Subgroup: | Population/Community Degradation | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | Benthic macroinvertebrate surveys | ||||
Data Used to Assess Water Quality: | Water Board staff assessed data for 204R03496 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.60292853 to 0.60292853. | ||||
Data Reference: | California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
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 204R03496. | ||||
Temporal Representation: | Samples were collected from 5/22/2017 to 5/22/2017. | ||||
Environmental Conditions: | |||||
QAPP Information: | Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143852 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Bifenthrin |
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. |
|
|||||
LOE ID: | 270320 | ||||
Pollutant: | Bifenthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Bifenthrin . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for bifenthrin is the median lethal concentration (LC50) of 0.43 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.43 ug/g is the geometric mean of LC50 values for bifenthrin (Amweg et al., 2005 and Amweg and Weston, 2007). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143839 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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. |
|
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LOE ID: | 270436 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cadmium . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for cadmium is the probable effect concentration (PEC) of 4.98 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143840 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Chlordane |
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. |
|
|||||
LOE ID: | 270989 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Chlordane . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for chlordane is the probable effect concentration (PEC) of 17.6 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143841 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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: | |
|
|||||
LOE ID: | 280779 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
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: 204R02472 (Redwood Creek at Valota Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 280814 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
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: 204R03496 (Redwood Creek at Menlo Golf Course). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 280886 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2020 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
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: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-05-19 and 2020-05-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. | ||||
QAPP Information Reference(s): | Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project | ||||
|
|||||
LOE ID: | 280851 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2014 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
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: 204R01268 (Redwood Creek at Kentfield Ave). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-05-06 and 2014-05-06 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 280950 | ||||
Pollutant: | Chloride | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). | ||||
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: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-05-28 and 2013-05-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143842 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Chlorine |
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. Although there was a sufficient number of samples to assess total chlorine, this water body was given a use rating of Insufficient Information and a Do Not List decision. First, data were collected with field instruments that do not have the sensitivity to detect low levels of total chlorine to assess the freshwater water quality objectives of 11 ug/L and 19 ug/L. Secondly, most of the data were collected only once for a given site, and the data were not collected with the purpose of assessing chlorine levels in the water body. A more appropriate sampling to determine water quality impacts of chlorine might be conducted for future Integrated Report assessments. |
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. |
|
|||||
LOE ID: | 281912 | ||||
Pollutant: | Chlorine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2020 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). | ||||
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: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-05-19 and 2020-05-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. | ||||
QAPP Information Reference(s): | Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project | ||||
|
|||||
LOE ID: | 281947 | ||||
Pollutant: | Chlorine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). | ||||
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: 204R02472 (Redwood Creek at Valota Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 282106 | ||||
Pollutant: | Chlorine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2014 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). | ||||
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: 204R01268 (Redwood Creek at Kentfield Ave). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-05-06 and 2014-05-06 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 282047 | ||||
Pollutant: | Chlorine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for Chlorine, Total Residual. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). | ||||
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: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-05-28 and 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 282165 | ||||
Pollutant: | Chlorine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). | ||||
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: 204R03496 (Redwood Creek at Menlo Golf Course). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
DECISION ID |
143857 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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. |
|
|||||
LOE ID: | 271124 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Chromium . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143843 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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: | |
|
|||||
LOE ID: | 271587 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Copper . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for copper is the probable effect concentration (PEC) of 149 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 283284 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Copper. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 9 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: 204RED010 (Redwood Creek at Maple St.). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 283414 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Copper. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is hardness dependent. The criterion when calculated using a default hardness of 100 mg/L is 9 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: 204RED050 (Redwood Creek at Menlo Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-01-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
DECISION ID |
143855 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Cyfluthrin |
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. |
|
|||||
LOE ID: | 271861 | ||||
Pollutant: | Cyfluthrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cyfluthrin, total . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for cyfluthrin is the median lethal concentration (LC50) of 1.1 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 1.1 ug/g is the geometric mean of LC50 values for cyfluthrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143853 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Cypermethrin |
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. |
|
|||||
LOE ID: | 271739 | ||||
Pollutant: | Cypermethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cypermethrin, Total . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for cypermethrin is the median lethal concentration (LC50) of 0.3 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.3 ug/g is the geometric mean of LC50 values for cypermethrin from Maund et al., (2002). | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
148131 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | DDD (Dichlorodiphenyldichloroethane) |
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: | |
|
|||||
LOE ID: | 272096 | ||||
Pollutant: | DDD (Dichlorodiphenyldichloroethane) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for DDD (Dichlorodiphenyldichloroethane) . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for the sum of DDD is the probable effect concentration (PEC) of 28 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
148188 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) |
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: | |
|
|||||
LOE ID: | 272141 | ||||
Pollutant: | DDE (Dichlorodiphenyldichloroethylene) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for the sum of DDE is the probable effect concentration (PEC) of 31.3 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
148337 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) |
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. |
|
|||||
LOE ID: | 275896 | ||||
Pollutant: | Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 272469 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for DDT (Dichlorodiphenyltrichloroethane) . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for the sum of DDT is the probable effect concentration (PEC) of 62.9 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143856 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Deltamethrin |
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. |
|
|||||
LOE ID: | 272616 | ||||
Pollutant: | Deltamethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Deltamethrin . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for deltamethrin is the median lethal concentration (LC50) of 0.79 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 0.79 ug/g is the geometric mean of LC50 values for deltamethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143844 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Dieldrin |
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. |
|
|||||
LOE ID: | 272365 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Dieldrin . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for dieldrin is the probable effect concentration (PEC) of 61.8 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143845 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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. |
|
|||||
LOE ID: | 274126 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Lead . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for lead is the probable effect concentration (PEC) of 128 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143846 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) |
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. |
|
|||||
LOE ID: | 273822 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for HCH, gamma- . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for lindane is the probable effect concentration (PEC) for Lindane is 4.99 ug/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
145496 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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: | |
|
|||||
LOE ID: | 274481 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Mercury . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for mercury is the probable effect concentration (PEC) of 1.06 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143847 |
Region 2 |
Redwood Creek (San Mateo) |
||
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: | 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: | |
|
|||||
LOE ID: | 274706 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the evaluation guideline for Nickel . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for nickel is the probable effect concentration (PEC) of 48.6 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143848 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Oxygen, Dissolved |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | 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: | |
|
|||||
LOE ID: | 285537 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Oxygen, Dissolved. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204RED010 (Redwood Creek at Maple St.). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 284873 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) 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, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R03496 (Redwood Creek at Menlo Golf Course). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 285910 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2020 data for Redwood Creek (San Mateo) 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, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2020-05-19 and 2020-05-19 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. | ||||
QAPP Information Reference(s): | Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project | ||||
|
|||||
LOE ID: | 285536 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) 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, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204RED050 (Redwood Creek at Menlo Country Club). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-01-09 and 2017-01-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 285054 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) 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, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-05-28 and 2013-05-28 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 285240 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2014 data for Redwood Creek (San Mateo) 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, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R01268 (Redwood Creek at Kentfield Ave). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-05-06 and 2014-05-06 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
|
|||||
LOE ID: | 284919 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2017 data for Redwood Creek (San Mateo) 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, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 204R02472 (Redwood Creek at Valota Rd). | ||||
Temporal Representation: | The samples were collected between the dates of 2017-05-22 and 2017-05-22 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan | ||||
DECISION ID |
143858 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Permethrin |
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. |
|
|||||
LOE ID: | 275361 | ||||
Pollutant: | Permethrin | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Permethrin, Total . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for permethrin is the median lethal concentration (LC50) of 8.9 ug/g and is normalized by the percentage of organic carbon in the sediment sample. The LC50 8.9 ug/g is the geometric mean of LC50 values for permethrin (Amweg et al., 2005). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143851 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Pyrethroids |
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. |
|
|||||
LOE ID: | 275973 | ||||
Pollutant: | Pyrethroids | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Pyrethroids . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). | ||||
Guideline Reference: | Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 | ||||
Guideline Reference: | Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 | ||||
Guideline Reference: | Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. | ||||
Guideline Reference: | Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. | ||||
Guideline Reference: | Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids | ||||
Guideline Reference: | Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143849 |
Region 2 |
Redwood Creek (San Mateo) |
||
Pollutant: | Toxicity |
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. |
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LOE ID: | 268612 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 2 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 1 of the 2 samples collected by BASMAA RMC Monitoring in WY2013 for Redwood Creek (San Mateo) exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Selenastrum capricornutum for Total Cell Count, Pimephales promelas for Biomass (wt/orig indiv), Hyalella azteca for Survival, Ceriodaphnia dubia for Survival, Pimephales promelas for Survival, Ceriodaphnia dubia for Young/female. The following tests exhibited toxicity: Pimephales promelas for Survival on 2013-03-05, Hyalella azteca for Survival on 2013-03-05. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 204R00680 ( Redwood Creek At PG&E substation-204R00680 ). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-03-05 and 2013-07-09. | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
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LOE ID: | 268652 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Sediment | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 1 samples collected by BASMAA RMC Monitoring in WY2013 for Redwood Creek (San Mateo) exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Survival, Hyalella azteca for Growth (wt/surv indiv). | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. | ||||
Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
Spatial Representation: | The samples were collected at monitoring site: 204R00680 ( Redwood Creek At PG&E substation-204R00680 ). | ||||
Temporal Representation: | The samples were collected between the dates of 2013-07-09 and 2013-07-09. | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||
DECISION ID |
143850 |
Region 2 |
Redwood Creek (San Mateo) |
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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: | 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. |
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LOE ID: | 276197 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Sediment | ||||
Matrix: | Sediment | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm 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 BASMAA RMC Monitoring in WY2013 data for Redwood Creek (San Mateo) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Zinc . | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. | ||||
Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) | ||||
Evaluation Guideline: | The evaluation guideline for zinc is the probable effect concentration (PEC) of 459 mg/kg dry weight (MacDonald et al., 2000a). | ||||
Guideline Reference: | Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 | ||||
Spatial Representation: | Data were collected from 1 station(s). Station Code(s): 204R00680 (Redwood Creek At PG&E substation-204R00680). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2013-07-09 to 2013-07-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. | ||||
QAPP Information Reference(s): | Creek Status Monitoring Program Quality Assurance Project Plan | ||||