Water Body Name: | Perris Valley Storm Drain |
Water Body ID: | CAR8021100020110809102021 |
Water Body Type: | River & Stream |
DECISION ID |
133677 |
Region 8 |
Perris Valley Storm Drain |
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Pollutant: | 1,1,2-Trichloroethane |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 238060 | ||||
Pollutant: | 1,1,2-Trichloroethane | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Trichloroethane, 1,1,2-. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA National Recommended Water Quality Criteria (Gold Book) for freshwater aquatic life protection, chronic Lowest Observed Effect Level is 9,400 ug/L. | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2015-02-23 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133667 |
Region 8 |
Perris Valley Storm Drain |
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Pollutant: | Acrolein |
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: | 234912 | ||||
Pollutant: | Acrolein | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Acrolein. Although a total of 2 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA recommended acrolein criterion for the protection of aquatic life in freshwater is 3 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2015-02-23 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133671 |
Region 8 |
Perris Valley Storm Drain |
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Pollutant: | Aldrin |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 234915 | ||||
Pollutant: | Aldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 9 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Aldrin. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The aldrin criterion maximum concentration (expressed as a 1-day average) to protect aquatic life in freshwater is 1.5 ug/L. The criterion of 3 ug/L provided in the California Toxics Rule is an instantaneous maximum concentration and was divided by 2 in order to better represent a criterion maximum concentration (CMC) value as specified in footnote (g) of Table (b)(1) of the 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
150597 |
Region 8 |
Perris Valley Storm Drain |
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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: | 316281 | ||||
Pollutant: | Ammonia (Unionized) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 8 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 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The chronic unionized ammonia objectives (expressed as a 4-day average in mg/L) to protect aquatic life in freshwater are pH and temperature dependent and were calculated according to the formulas specified in Table 4-4 of the Water Quality Control Plan for the Santa Ana River Basin. | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133619 |
Region 8 |
Perris Valley Storm Drain |
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Pollutant: | Antimony |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 235436 | ||||
Pollutant: | Antimony | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Antimony. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA Quality Criteria for Water (Gold Book) states that for antimony toxicity to algae occurs at 610 ug/l. (USEPA, 1986) | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
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LOE ID: | 235423 | ||||
Pollutant: | Antimony | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Antimony. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA Quality Criteria for Water (Gold Book) states that for antimony toxicity to algae occurs at 610 ug/l. (USEPA, 1986) | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133620 |
Region 8 |
Perris Valley Storm Drain |
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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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 235584 | ||||
Pollutant: | Arsenic | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Arsenic. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 150 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
151781 |
Region 8 |
Perris Valley Storm Drain |
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Pollutant: | Atrazine |
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: | 307400 | ||||
Pollutant: | Atrazine | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Atrazine. Although a total of 4 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | USEPA National Recommended Ambient Water Quality Criteria Aquatic Life Protection Instantaneous Max for atrazine: 1 ug/l. | ||||
Guideline Reference: | National recommended water quality criteria: 2002. EPA-822-R-02-047 Washington, D.C. USEPA | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2018-01-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133638 |
Region 8 |
Perris Valley Storm Drain |
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Pollutant: | Azinphos-methyl (Guthion) |
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: | 235588 | ||||
Pollutant: | Azinphos-methyl (Guthion) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Azinphos Methyl. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA National Recommended Water Quality Criteria for azinphos methyl for freshwater aquatic life protection is 0.01 ug/l (instantaneous maximum) | ||||
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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
153777 |
Region 8 |
Perris Valley Storm Drain |
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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 section 3.9 of the Listing Policy. Under section 3.9, when data show benthic community degradation and there is at least one pollutant impairment that could impact benthic macroinvertebrates, the waterbody is placed on the 303(d) List for benthic community effects. Three lines of evidence evaluating benthic macroinvertebrate bioassessment data are available in the administrative record to assess this indicator. Three of three benthic-macroinvertebrate samples exceed the California Stream Condition Index (CSCI) impairment threshold of 0.79. At least one line of evidence includes sufficient pollutant exceedances to indicate the waterbody is impaired for at least one pollutant. However, there is insufficient data and/or information to determine if at least one pollutant could be impacting benthic macroinvertebrates. Based on the readily available data and information, the evidence indicates that there is sufficient justification against placing Benthic Community Effects in this waterbody segment on the CWA section 303(d) List. Although there is insufficient data and/or information to make a beneficial use support determination, the exceedances of the benthic macroinvertebrate samples indicate beneficial uses may be potentially threatened. 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. Three of three benthic macroinvertebrate bioassessment samples had CSCI scores below 0.79. 4. At least one line of evidence includes sufficient pollutant exceedances to indicate the waterbody is impaired for at least one pollutant related to aquatic life; however, data and/or information are insufficient to determine if the pollutant(s) is impacting benthic macroinvertebrates. 5. 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: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 314408 | ||||
Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
LOE Subgroup: | Population/Community Degradation | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Cold Freshwater Habitat | ||||
Number of Samples: | 1 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | Benthic macroinvertebrate surveys | ||||
Data Used to Assess Water Quality: | Water Board staff assessed data for SMC04749 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.59123321 to 0.59123321. | ||||
Data Reference: | California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 8. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Inland surface water communities and populations, including vertebrate, invertebrate, and plant species, shall not be degraded as a result of the discharge of waste. Degradation is damage to an aquatic community or population with the result that balanced community no longer exists. The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
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 SMC04749. | ||||
Temporal Representation: | Samples were collected from 6/23/2009 to 6/23/2009. | ||||
Environmental Conditions: | |||||
QAPP Information: | Data collected following SWAMP QA protocols. | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 314387 | ||||
Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
LOE Subgroup: | Population/Community Degradation | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Cold 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 SMC32897 to determine beneficial use support and the results are as follows: 2 of 2 samples exceeded the threshold. CSCI scores were from 0.39802728 to 0.54430962. | ||||
Data Reference: | California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 8. | ||||
SWAMP Data: | SWAMP | ||||
Water Quality Objective/Criterion: | Inland surface water communities and populations, including vertebrate, invertebrate, and plant species, shall not be degraded as a result of the discharge of waste. Degradation is damage to an aquatic community or population with the result that balanced community no longer exists. The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses. | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
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 SMC32897. | ||||
Temporal Representation: | Samples were collected from 6/21/2010 to 5/15/2014. | ||||
Environmental Conditions: | |||||
QAPP Information: | Data collected following SWAMP QA protocols. | ||||
QAPP Information Reference(s): | This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. | ||||
|
|||||
LOE ID: | 236357 | ||||
Pollutant: | Iron | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 11 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 11 of 11 samples exceeded the water quality threshold for Iron. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentrations are intended protect freshwater aquatic organisms from chronic exposures and are expressed as 4-day average concentrations. The evaluation guideline for Iron is 1,000 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
|
|||||
LOE ID: | 236827 | ||||
Pollutant: | Oil and Grease | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality threshold for OilandGrease; HEM. Although a total of 6 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | According to the USEPA Quality Criteria for Water (Gold Book), concentrations of oil at 0.001 mg/L can harm aquatic life. (USEPA, 1986) | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133622 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Beryllium |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 235761 | ||||
Pollutant: | Beryllium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Beryllium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The Gold Book states that beryllium chronic toxicity to freshwater aquatic life occur at concentrations as low as 5.3 ug/L. | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2019-12-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
|
|||||
LOE ID: | 235809 | ||||
Pollutant: | Beryllium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Beryllium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The Gold Book states that beryllium chronic toxicity to freshwater aquatic life occur at concentrations as low as 5.3 ug/L. | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133623 |
Region 8 |
Perris Valley Storm Drain |
||
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 235620 | ||||
Pollutant: | Cadmium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Cadmium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved cadmium 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 2.2 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133624 |
Region 8 |
Perris Valley Storm Drain |
||
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 238026 | ||||
Pollutant: | Chlordane | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 5 samples exceeded the water quality threshold for Total Chlordane. Although a total of 8 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The chlordane criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0043 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 (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-12-12 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133625 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Chlorpyrifos |
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: | 235857 | ||||
Pollutant: | Chlorpyrifos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Chlorpyrifos. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The freshwater criterion continuous concentration to protect aquatic organisms is 0.015 ug/L (Siepmann and Finlayson 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133676 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Chlorpyrifos, methyl |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 235914 | ||||
Pollutant: | Chlorpyrifos, methyl | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Chlorpyrifos Methyl. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for chlorpyrifos methyl is the USEPA Aquatic Life Benchmark of 0.085 ug/L for an invertebrate (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133678 |
Region 8 |
Perris Valley Storm Drain |
||
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236020 | ||||
Pollutant: | Chromium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Chromium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved chromium (III) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is is hardness dependent as described in Table 1 of paragraph (b)(1). The value calculated when using a default hardness of 100 mg/L is 180 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: | The dissolved chromium (III) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is is hardness dependent as described in Table 1 of paragraph (b)(1). The value calculated when using a default hardness of 100 mg/L is 180 ug/L (California Toxics Rule, 2000). | ||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133626 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Chromium, hexavalent |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 235845 | ||||
Pollutant: | Chromium, hexavalent | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Chromium VI. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved chromium (VI) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 11 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133627 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Chromium, trivalent |
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: | 236150 | ||||
Pollutant: | Chromium, trivalent | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Chromium III. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved chromium (III) 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 180 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133628 |
Region 8 |
Perris Valley Storm Drain |
||
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: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 235864 | ||||
Pollutant: | Copper | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 1 of 11 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 8. | ||||
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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133680 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Coumaphos |
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: | 235869 | ||||
Pollutant: | Coumaphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Coumaphos. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for coumaphos is the USEPA Aquatic Life Benchmark of 0.0337 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133629 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Cyanide |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 235890 | ||||
Pollutant: | Cyanide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 9 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Cyanide. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The cyanide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5.2 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
149252 |
Region 8 |
Perris Valley Storm Drain |
||
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: | 236349 | ||||
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for DDT(p,p'). Although a total of 3 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The DDT(4,4') criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.001 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-12-12 to 2016-01-05 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133679 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Demeton |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236171 | ||||
Pollutant: | Demeton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Demeton, Total. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA National Recommended Water Quality criterion for demeton for freshwater aquatic life protection is 0.1 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 (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133631 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Diazinon |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236225 | ||||
Pollutant: | Diazinon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the water quality threshold for Diazinon. Although a total of 10 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The freshwater chronic value for diazinon is 0.10 ug/L (4 day average)(Finlayson, 2004). | ||||
Guideline Reference: | Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game | ||||
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game (with minor corrections to significant figures as described in Beaulaurier et al., 2005). | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133632 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Dichlorvos |
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: | 236241 | ||||
Pollutant: | Dichlorvos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Dichlorvos. Although a total of 10 samples were collected, 10 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for dichlorvos is the USEPA Aquatic Life Benchmark of 0.0058 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2019-12-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133633 |
Region 8 |
Perris Valley Storm Drain |
||
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236259 | ||||
Pollutant: | Dieldrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Dieldrin. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dieldrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.056 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133668 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Dimethoate |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236262 | ||||
Pollutant: | Dimethoate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Dimethoate. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for dimethoate is the USEPA Aquatic Life Benchmark of 0.5 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
151782 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Disulfoton |
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: | 307403 | ||||
Pollutant: | Disulfoton | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Disulfoton. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | USEPA National Recommended Water Quality Criteria Aquatic Life Protection Instantaneous Max for disulfoton: 0.05 ppb. | ||||
Guideline Reference: | National recommended water quality criteria: 2002. EPA-822-R-02-047 Washington, D.C. USEPA | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133635 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Dyfonate (Fonofos or Fonophos) |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236247 | ||||
Pollutant: | Dyfonate (Fonofos or Fonophos) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Fonofos. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for fonofos is the maximum acceptable toxicant concentration (MATC) of 0.45 ug/L. The MATC is calculated as the geometric mean of the lowest observed effect concentration (LOEC) of 0.64 ug/L and the no observed effect concentration (NOEC) of 0.31 ug/L, as determined in a 21 day toxicity study with the water flea, Daphnia magna. Threshold values (LOEC and NOEC) are from USEPA Office of Pesticide Programs Ecotoxicity database. | ||||
Guideline Reference: | OPP Pesticide Ecotoxicity Database. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133636 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Endosulfan sulfate |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236300 | ||||
Pollutant: | Endosulfan sulfate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Endosulfan Sulfate. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA National Recommended Water Quality Criteria toxicity threshold for endosulfan sulfate for freshwater aquatic life protection is 0.056 ug/l (24 hour 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133637 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Endrin |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236315 | ||||
Pollutant: | Endrin | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Endrin. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The endrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.036 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133665 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Ethion |
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: | 236407 | ||||
Pollutant: | Ethion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Ethion. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for ethion is the USEPA Aquatic Life Benchmark of 0.028 ug/L for invertebrates (acute). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133669 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Ethoprop |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236409 | ||||
Pollutant: | Ethoprop | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Ethoprop. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for ethoprop is the USEPA Aquatic Life Benchmark of 0.8 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133666 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Ethyl p-nitrophenyl (EPN) |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236316 | ||||
Pollutant: | Ethyl p-nitrophenyl (EPN) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 3 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for EPN. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for EPN is the LC50 of 6.8 ug/L for Gammarus fasciatus (Scud) (USEPA Office of Pesticide Programs Ecotoxicity database). | ||||
Guideline Reference: | OPP Pesticide Ecotoxicity Database. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2015-02-23 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133673 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Fenitrothion |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236427 | ||||
Pollutant: | Fenitrothion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Fenitrothion. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for fenitrothion is the USEPA Aquatic Life Benchmark of 0.087 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133674 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Fenthion |
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: | 236215 | ||||
Pollutant: | Fenthion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Fenthion. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for fenthion is the USEPA Aquatic Life Benchmark of 0.013 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133639 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Heptachlor |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236266 | ||||
Pollutant: | Heptachlor | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the water quality threshold for Heptachlor. Although a total of 6 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The heptachlor criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 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 (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133640 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Heptachlor epoxide |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236284 | ||||
Pollutant: | Heptachlor epoxide | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 5 samples exceeded the water quality threshold for Heptachlor Epoxide. Although a total of 8 samples were collected, 3 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The heptachlor epoxide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0038 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 (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-12-12 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133642 |
Region 8 |
Perris Valley Storm Drain |
||
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236420 | ||||
Pollutant: | Lead | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 1 of 11 samples exceeded the water quality threshold for Lead. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved lead 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 2.5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133643 |
Region 8 |
Perris Valley Storm Drain |
||
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: | 236250 | ||||
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 6 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold 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 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The gamma-BHC (Lindane, gamma-HCH) criterion maximum concentration to protect aquatic life in freshwater is 0.95 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
154748 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Malathion |
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: | 316259 | ||||
Pollutant: | Malathion | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Malathion. Although a total of 11 samples were collected, 10 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | Aquatic life should not be affected unacceptably if the 4-day average concentration of Malathion does not exceed 0.028 ug/L more than once every three years on the average (UC Davis Aquatic Life Criterion). | ||||
Guideline Reference: | Aquatic life water quality criteria derived via the UC Davis method: l. Organophosphate insecticides. Reviews of Environmental Contamination and Toxicology 216:1-48. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
149102 |
Region 8 |
Perris Valley Storm Drain |
||
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: | 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: | 236780 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Mercury. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentration (4-day average concentrations) for freshwater aquatic organisms exposure to total mercury is 0.77 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
|
|||||
LOE ID: | 236779 | ||||
Pollutant: | Mercury | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Mercury. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentration (4-day average concentrations) for freshwater aquatic organisms exposure to total mercury is 0.77 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2019-12-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133644 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Methyl Parathion |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 237221 | ||||
Pollutant: | Methyl Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Parathion, Methyl. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The California Department of Fish and Game instantaneous aquatic life criterion for methyl parathion is 0.08 ug/L. | ||||
Guideline Reference: | Hazard Assessment of the Insecticide Methyl Parathion to Aquatic Organisms in the Sacramento River System | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133672 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Naled |
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: | 236527 | ||||
Pollutant: | Naled | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Naled. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for naled is the USEPA Aquatic Life Benchmark of 0.01 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133645 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Naphthalene |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236528 | ||||
Pollutant: | Naphthalene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 9 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Naphthalene. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA recommended naphthalene criterion for the protection of freshwater aquatic life is 620 ug/l. (EPA 440/5-80-059) | ||||
Guideline Reference: | Ambient Water Quality Criteria for Naphthalene | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133646 |
Region 8 |
Perris Valley Storm Drain |
||
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: | 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: | 236656 | ||||
Pollutant: | Nickel | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Nickel. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved nickel 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 52 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133648 |
Region 8 |
Perris Valley Storm Drain |
||
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: | 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: | 236816 | ||||
Pollutant: | Oxygen, Dissolved | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 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 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved oxygen content of surface waters shall not be depressed below 5 mg/L for waters designated WARM as a result of controllable water quality factors (Water Quality Control Plan, Santa Ana Basin, Chapter 4 Water Quality Objectives, Inland Surface Waters). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-12-13 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133653 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | PCBs (Polychlorinated biphenyls) |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 237244 | ||||
Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 5 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 5 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls). Although a total of 9 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The PCB, total aroclors criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.014 ug/L. This value corresponds to the sum of aroclors 1242, 1254, 1221, 1232, 1248, 1260, and 1016 (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 (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133650 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Parathion |
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: | 237201 | ||||
Pollutant: | Parathion | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Parathion, Ethyl. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA recommended freshwater aquatic life ambient water quality chronic criteria for parathion is 0.013 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133651 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Pentachlorophenol (PCP) |
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: | 237246 | ||||
Pollutant: | Pentachlorophenol (PCP) | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 2 samples exceeded the water quality threshold for Pentachlorophenol. Although a total of 3 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The pentachlorophenol criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is pH dependent. The criterion using a default pH value of 7.8 (when pH data is not present) is 15 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 (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-12-12 to 2019-12-04 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133670 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Phorate |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 237635 | ||||
Pollutant: | Phorate | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Phorate. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for phorate is the USEPA Aquatic Life Benchmark of 0.21 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133675 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Phosmet |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 237656 | ||||
Pollutant: | Phosmet | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Phosmet. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for phosmet is the USEPA Aquatic Life Benchmark of 0.75 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133654 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Selenium |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | 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: | 237793 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
|
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LOE ID: | 237859 | ||||
Pollutant: | Selenium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Selenium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 5 ug/L (California Toxics Rule, 2000). | ||||
Objective/Criterion Reference: | Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133655 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Silver |
Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | 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: | 237823 | ||||
Pollutant: | Silver | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Silver. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved silver criterion maximum concentration (CMC) to protect aquatic life in freshwater is hardnesss dependent. The criterion when calculated using a default hardness of 100 mg/L is 3.4 ug/L. This criterion was divided by 2 in order to better represent a CMC value as specified in footnote (g) of Table (b)(1) of the 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
151783 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Simazine |
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: | 307406 | ||||
Pollutant: | Simazine | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 4 samples exceeded the water quality threshold for Simazine. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | USEPA National Recommended Ambient Water Quality Criteria Aquatic Life Protection Instantaneous Max for simazine: 10 ug/L. | ||||
Guideline Reference: | National recommended water quality criteria: 2002. EPA-822-R-02-047 Washington, D.C. USEPA | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2018-01-09 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133657 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Temperature, water |
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: | 237897 | ||||
Pollutant: | Temperature, water | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Temperature. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The temperature of waters designated WARM shall not be raised above 90 degrees F June through October or above 78 degrees F during the rest of the year as a result of controllable water quality factors (Water Quality Control Plan, Santa Ana Basin, Chapter 4 Water Quality Objectives, Inland Surface Waters). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-12-13 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133658 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Terbufos |
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: | 238077 | ||||
Pollutant: | Terbufos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Terbufos. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for terbufos is the USEPA Aquatic Life Benchmark of 0.03 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133659 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Tetrachlorvinphos |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 238078 | ||||
Pollutant: | Tetrachlorvinphos | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 7 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Tetrachlorvinphos. Although a total of 11 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for stirophos (tetrachlorvinphos) is the USEPA Aquatic Life Benchmark of 0.125 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133660 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Thallium |
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: | 237917 | ||||
Pollutant: | Thallium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Thallium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA Quality Criteria for Water (Gold Book) states that thallium chronic toxicity to one species of fish occurs at concentrations as low as 20 ug/L after 2,600 hours of exposure. (USEPA, 1986) | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
|
|||||
LOE ID: | 238115 | ||||
Pollutant: | Thallium | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Thallium. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The USEPA Quality Criteria for Water (Gold Book) states that thallium chronic toxicity to one species of fish occurs at concentrations as low as 20 ug/L after 2,600 hours of exposure. (USEPA, 1986) | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133661 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Toxaphene |
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: | 238042 | ||||
Pollutant: | Toxaphene | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Toxaphene. Although a total of 9 samples were collected, 9 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The toxaphene criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.0002 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133662 |
Region 8 |
Perris Valley Storm Drain |
||
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. |
|
|||||
LOE ID: | 238149 | ||||
Pollutant: | Toxicity | ||||
LOE Subgroup: | Toxicity | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 4 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | TOXICITY TESTING | ||||
Data Used to Assess Water Quality: | 0 of the 4 samples collected by Santa Ana Region for Perris Valley Storm Drain 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: Ceriodaphnia dubia for Survival, Selenastrum capricornutum for Total Cell Count, Pimephales promelas for Survival. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan, Santa Ana Basin, Chapter 4 Water Quality Objectives, Inland Surface Waters). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
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: 802NVO325 ( Perris Valley Channel at Nuevo ). | ||||
Temporal Representation: | The samples were collected between the dates of 2016-12-16 and 2018-11-29. | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133663 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Trichlorfon |
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: | 238058 | ||||
Pollutant: | Trichlorfon | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Trichlorfon. Although a total of 11 samples were collected, 11 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | The evaluation guideline for trichlorfon is the USEPA Aquatic Life Benchmark of 0.0057 ug/L for an invertebrate (chronic). | ||||
Guideline Reference: | OPP Aquatic Life Benchmarks | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | Data for this waterbody were collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133664 |
Region 8 |
Perris Valley Storm Drain |
||
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: | 237960 | ||||
Pollutant: | Zinc | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Zinc. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The dissolved zinc 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 120 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133630 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | alpha-Endosulfan (Endosulfan 1) |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236279 | ||||
Pollutant: | alpha-Endosulfan (Endosulfan 1) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Endosulfan I. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The endosulfan I (alpha-endosulfan) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.056 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133649 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | beta-Endosulfan (Endosulfan 2) |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236297 | ||||
Pollutant: | beta-Endosulfan (Endosulfan 2) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 8 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Endosulfan II. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The endosulfan II (beta-endosulfan) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.056 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: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-12-12 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133652 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | pH |
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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 237445 | ||||
Pollutant: | pH | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 1 of 11 samples exceeded the water quality threshold for pH. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The pH of inland surface waters shall not be raised above 8.5 or depressed below 6.5 as a result of controllable water quality factors (The Water Quality Control Plan, Santa Ana Basin, Chapter 4 Water Quality Objectives, Inland Surface Waters). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2012-12-13 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
149166 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Indicator Bacteria |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Sources: | A Source Unknown |
Expected TMDL Completion Date: | 2037 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under sections 3.2 and 3.3 of the Listing Policy. Under these sections a single line of evidence is necessary to assess listing status. The State Water Board’s Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California (the “ISWEBE Plan”) contains two bacteria water quality objectives applicable to the REC-1 beneficial use, which were adopted on August 7, 2018. Because the salinity level of this waterbody is equal to or less than 1 part per thousand 95 percent or more of the time, the E. coli bacteria objective applies. Therefore, this waterbody is being considered for placement on the CWA section 303(d) List under section 3.3 of the Listing Policy using the E. coli objective. One (1) line of evidence is available in the administrative record to assess this pollutant for the REC-1 beneficial use. Eleven (11) of the 11 samples exceed the 6-week E.coli Geomean objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the 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. Eleven (11) of the 11 samples exceed the 6-week E. coli Geomean objective and this exceeds the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 300922 | ||||
Pollutant: | Escherichia coli (E. coli) | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | STV | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 11 | ||||
Data and Information Type: | PATHOGEN MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 11 of the 11 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). | ||||
Objective/Criterion Reference: | Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | The samples were collected at 1 monitoring site(s), station(s): 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the days of 2014-02-28 and 2020-03-10 . | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133641 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Iron |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Sources: | A Source Unknown |
Expected TMDL Completion Date: | 2037 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this pollutant. Eleven of the 21 samples exceed the WARM iron objective using the National Recommended Water Quality Criteria. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Eleven of 21 samples exceed the WARM iron objective using the National Recommended Water Quality Criteria for Iron and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236375 | ||||
Pollutant: | Iron | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 10 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Iron. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentrations are intended protect freshwater aquatic organisms from chronic exposures and are expressed as 4-day average concentrations. The evaluation guideline for Iron is 1,000 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
|
|||||
LOE ID: | 236357 | ||||
Pollutant: | Iron | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Total | ||||
Beneficial Use: | Warm Freshwater Habitat | ||||
Number of Samples: | 11 | ||||
Number of Exceedances: | 11 | ||||
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
Data Used to Assess Water Quality: | Water Board staff assessed Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and results are as follows: 11 of 11 samples exceeded the water quality threshold for Iron. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | National Recommended Water Quality Criteria Continuous Concentrations are intended protect freshwater aquatic organisms from chronic exposures and are expressed as 4-day average concentrations. The evaluation guideline for Iron is 1,000 ug/L. | ||||
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site: 802NVO325 (Perris Valley Channel at Nuevo). | ||||
Temporal Representation: | The samples were collected between the dates of 2014-02-28 and 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||
DECISION ID |
133647 |
Region 8 |
Perris Valley Storm Drain |
||
Pollutant: | Oil and Grease |
Final Listing Decision: | List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | New Decision |
Revision Status | Revised |
Sources: | A Source Unknown |
Expected TMDL Completion Date: | 2037 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. One line of evidence are available in the administrative record to assess this pollutant. Two of the two samples exceed the WARM Oil guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Two of the two samples exceed the WARM Oil guideline, and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
State Board Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
LOE ID: | 236827 | ||||
Pollutant: | Oil and Grease | ||||
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 Santa Ana Region data for Perris Valley Storm Drain to determine beneficial use support and the results are as follows: 2 of the 2 samples exceeded the water quality threshold for OilandGrease; HEM. Although a total of 6 samples were collected, 4 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. | ||||
Data Reference: | Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 8. | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses (Water Quality Control Plan for the Santa Ana River Basin). | ||||
Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
Evaluation Guideline: | According to the USEPA Quality Criteria for Water (Gold Book), concentrations of oil at 0.001 mg/L can harm aquatic life. (USEPA, 1986) | ||||
Guideline Reference: | Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001. | ||||
Spatial Representation: | The samples were collected at 1 monitoring site (802NVO325). | ||||
Temporal Representation: | Data for this waterbody was collected over the date range 2014-02-28 to 2020-03-10 | ||||
Environmental Conditions: | |||||
QAPP Information: | Riverside County Watershed Protection. 2021. VOLUME II: QUALITY ASSURANCE PROJECT PLAN. | ||||
QAPP Information Reference(s): | VOLUME II: QUALITY ASSURANCE PROJECT PLAN | ||||