Draft California 2024 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 5 - Central Valley Region

Water Body Name:	Pilot Creek (El Dorado County)
Water Body ID:	CAR5144303020190620032150
Water Body Type:	River & Stream


DECISION ID	151546	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Benthic Community Effects
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Benthic Community Effects are being considered for placement on the CWA section 303(d) List under sections 3.9 of the Listing Policy. Under section 3.9, additional lines of evidence (LOEs) associating the Benthic Community Effects decision with a water or sediment concentration of pollutants other than benthic-macroinvertebrate bioassessment or habitat assessment LOEs are necessary to place a water body on the 303(d) List for Benthic Community Effects. Five lines of evidence evaluating benthic-macroinvertebrate bioassessment data are available in the administrative record to assess this indicator. Zero of twelve benthic-macroinvertebrate samples exceed the California Stream Condition Index (CSCI) impairment threshold. These data indicate that the waterbody is likely unimpaired for Benthic Community Effects and therefore no other pollutant LOEs need be associated with this decision at this time. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing Benthic Community Effects in this waterbody segment on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of twelve benthic-macroinvertebrate bioassessment samples had CSCI scores below 0.79. Therefore, this water body is not exceeding the water quality threshold for the protection of the COLD beneficial use. The available information indicates that the waterbody/pollutant combination should not be placed on the 303(d) List of impaired waters at this time. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.

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.

Line of Evidence (LOE) for Decision ID 151546, Benthic Community Effects	Region 5
Pilot Creek (El Dorado County)

LOE ID:

231988

Pollutant:

Benthic-Macroinvertebrate Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Water Board staff assessed data for 514PCAPC2 to determine beneficial use support and the results are as follows: 0 of 1 samples exceeded the threshold. CSCI scores were from 1.043276225 to 1.043276225.

Data Reference:

California Stream Condition Index (CSCI) Scores for the 2020 Integrated Report for Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. Region 5 Basin Plan

Objective/Criterion Reference:

Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins; Fifth Edition. Revised May 2018 (with approved amendments)

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 514PCAPC2.

Temporal Representation:

Samples were collected from 10/8/2018 to 10/8/2018.

Environmental Conditions:

QAPP Information:

Data collected following SWAMP QA protocols.

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 151546, Benthic Community Effects	Region 5
Pilot Creek (El Dorado County)

LOE ID:

305695

Pollutant:

Benthic-Macroinvertebrate Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Water Board staff assessed data for 514PCASMR to determine beneficial use support and the results are as follows: 0 of 4 samples exceeded the threshold. CSCI scores were from 0.972858 to 1.185937766.

Data Reference:

California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 5, Sacramento River sub-region.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. Region 5 Basin Plan

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Bioassessment in complex environments: designing an index for consistent meaning in different settings

Spatial Representation:

Samples were collected from station 514PCASMR.

Temporal Representation:

Samples were collected from 10/29/2014 to 10/8/2019.

Environmental Conditions:

QAPP Information:

Data were collected using Sierra Pacific Industries Research protocols

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 151546, Benthic Community Effects	Region 5
Pilot Creek (El Dorado County)

LOE ID:

305693

Pollutant:

Benthic-Macroinvertebrate Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Water Board staff assessed data for 514PCAPC2 to determine beneficial use support and the results are as follows: 0 of 4 samples exceeded the threshold. CSCI scores were from 1.133884016 to 1.238827274.

Data Reference:

California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 5, Sacramento River sub-region.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. Region 5 Basin Plan

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Bioassessment in complex environments: designing an index for consistent meaning in different settings

Spatial Representation:

Samples were collected from station 514PCAPC2.

Temporal Representation:

Samples were collected from 9/3/2015 to 10/8/2019.

Environmental Conditions:

QAPP Information:

Data were collected using Sierra Pacific Industries Research protocols

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 151546, Benthic Community Effects	Region 5
Pilot Creek (El Dorado County)

LOE ID:

305694

Pollutant:

Benthic-Macroinvertebrate Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Water Board staff assessed data for 514PCAPCR to determine beneficial use support and the results are as follows: 0 of 1 samples exceeded the threshold. CSCI scores were from 1.112577398 to 1.112577398.

Data Reference:

California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 5, Sacramento River sub-region.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. Region 5 Basin Plan

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Bioassessment in complex environments: designing an index for consistent meaning in different settings

Spatial Representation:

Samples were collected from station 514PCAPCR.

Temporal Representation:

Samples were collected from 10/29/2014 to 10/29/2014.

Environmental Conditions:

QAPP Information:

Data were collected using Sierra Pacific Industries Research protocols

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 151546, Benthic Community Effects	Region 5
Pilot Creek (El Dorado County)

LOE ID:

231989

Pollutant:

Benthic-Macroinvertebrate Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Water Board staff assessed data for 514PCASMR to determine beneficial use support and the results are as follows: 0 of 2 samples exceeded the threshold. CSCI scores were from 0.985470449 to 1.053557749.

Data Reference:

California Stream Condition Index (CSCI) Scores for the 2020 Integrated Report for Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. Region 5 Basin Plan

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Bioassessment in complex environments: designing an index for consistent meaning in different settings

Spatial Representation:

Samples were collected from station 514PCASMR.

Temporal Representation:

Samples were collected from 9/19/2017 to 10/8/2018.

Environmental Conditions:

QAPP Information:

Data collected following SWAMP QA protocols.

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program


DECISION ID	153473	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Chloride
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	During the 2024 Cycle LOEs were updated due to a reassessment of data based on the Central Valley Water Board CV-SALTS Secondary MCL Policy. 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.

Line of Evidence (LOE) for Decision ID 153473, Chloride	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311554

Pollutant:

Chloride

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for Chloride. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Secondary MCL that is incorporated by reference into the Water Quality Control Plan for the Sacramento and San Joaquin River Basins specifies a range for chloride of 250 - 500 mg/L assessed as an annual average.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153473, Chloride	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311582

Pollutant:

Chloride

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153473, Chloride	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311892

Pollutant:

Chloride

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2017. Research and Monitoring Program Quality Assurance Project Plan., Sierra Pacific Industries. 2017. Research and Monitoring Program Quality Assurance Manual., Sierra Pacific Industries. 2017. Research and Monitoring Program Quality Assurance Manual; Research and Monitoring Program Quality Assurance Project Plan.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 153473, Chloride	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311529

Pollutant:

Chloride

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153473, Chloride	Region 5
Pilot Creek (El Dorado County)

LOE ID:

312168

Pollutant:

Chloride

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual


DECISION ID	147621	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Nitrate/Nitrite (Nitrite + Nitrate as N)
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.

Line of Evidence (LOE) for Decision ID 147621, Nitrate/Nitrite (Nitrite + Nitrate as N)	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295419

Pollutant:

Nitrate/Nitrite (Nitrite + Nitrate as N)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Nitrate + Nitrite as N.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Maximum Contaminant Level for nitrate + nitrite (as N) incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 10 mg/L (California Code of Regulations, Title 22).

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	150170	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Nitrogen, Nitrate
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
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:

Line of Evidence (LOE) for Decision ID 150170, Nitrogen, Nitrate	Region 5
Pilot Creek (El Dorado County)

LOE ID:

192288

Pollutant:

Nitrogen, Nitrate

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrate as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 10 mg/L.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 150170, Nitrogen, Nitrate	Region 5
Pilot Creek (El Dorado County)

LOE ID:

192235

Pollutant:

Nitrogen, Nitrate

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrate as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 10 mg/L.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 150170, Nitrogen, Nitrate	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295610

Pollutant:

Nitrogen, Nitrate

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrate as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 10 mg/L.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 150170, Nitrogen, Nitrate	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295541

Pollutant:

Nitrogen, Nitrate

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrate as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 10 mg/L.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	149215	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Nitrogen, Nitrite
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
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:

Line of Evidence (LOE) for Decision ID 149215, Nitrogen, Nitrite	Region 5
Pilot Creek (El Dorado County)

LOE ID:

192635

Pollutant:

Nitrogen, Nitrite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrite as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1000 ug/L .

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 149215, Nitrogen, Nitrite	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295595

Pollutant:

Nitrogen, Nitrite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrite as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1000 ug/L .

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 149215, Nitrogen, Nitrite	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295618

Pollutant:

Nitrogen, Nitrite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrite as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1000 ug/L .

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 149215, Nitrogen, Nitrite	Region 5
Pilot Creek (El Dorado County)

LOE ID:

192521

Pollutant:

Nitrogen, Nitrite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Primary Maximum Contaminant Level for Nitrite as N incorporated by reference in the Water Quality Control Plan for the Sacramento and San Joaquin River Basins is 1000 ug/L .

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual


DECISION ID	149354	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Nitrogen, ammonia (Total 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:

Line of Evidence (LOE) for Decision ID 149354, Nitrogen, ammonia (Total Ammonia)	Region 5
Pilot Creek (El Dorado County)

LOE ID:

292985

Pollutant:

Nitrogen, ammonia (Total Ammonia)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document.

Objective/Criterion Reference:

Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 149354, Nitrogen, ammonia (Total Ammonia)	Region 5
Pilot Creek (El Dorado County)

LOE ID:

293233

Pollutant:

Nitrogen, ammonia (Total Ammonia)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 149354, Nitrogen, ammonia (Total Ammonia)	Region 5
Pilot Creek (El Dorado County)

LOE ID:

293191

Pollutant:

Nitrogen, ammonia (Total Ammonia)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	147622	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Oxygen, Dissolved
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
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.

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295693

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295769

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295795

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295962

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

208543

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

207944

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed SWAMP Reference Condition Management Plan data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

208759

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as SPWN is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

208608

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

207957

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

208927

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295918

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147622, Oxygen, Dissolved	Region 5
Pilot Creek (El Dorado County)

LOE ID:

295874

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum dissolved oxygen concentration for waters designated as COLD is 7.0 mg/L. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin Basin)

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	153990	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Specific Conductivity
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	During the 2024 Cycle LOEs were updated due to a reassessment of data based on the Central Valley Water Board CV-SALTS Secondary MCL Policy. 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.

Line of Evidence (LOE) for Decision ID 153990, Specific Conductivity	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311819

Pollutant:

Specific Conductivity

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for SpecificConductivity. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Secondary MCL that is incorporated by reference into the Water Quality Control Plan for the Sacramento and San Joaquin River Basins specifies a range for specific conductance of 900 - 1600 uS/cm assessed as an annual average.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153990, Specific Conductivity	Region 5
Pilot Creek (El Dorado County)

LOE ID:

312226

Pollutant:

Specific Conductivity

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for SpecificConductivity. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 153990, Specific Conductivity	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311777

Pollutant:

Specific Conductivity

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for SpecificConductivity. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153990, Specific Conductivity	Region 5
Pilot Creek (El Dorado County)

LOE ID:

312529

Pollutant:

Specific Conductivity

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for SpecificConductivity. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 153990, Specific Conductivity	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311928

Pollutant:

Specific Conductivity

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 153990, Specific Conductivity	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311809

Pollutant:

Specific Conductivity

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for SpecificConductivity. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	153474	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Sulfates
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	During the 2024 Cycle LOEs were updated due to a reassessment of data based on the Central Valley Water Board CV-SALTS Secondary MCL Policy. 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.

Line of Evidence (LOE) for Decision ID 153474, Sulfates	Region 5
Pilot Creek (El Dorado County)

LOE ID:

312822

Pollutant:

Sulfates

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for Sulfate. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Secondary MCL that is incorporated by reference into the Water Quality Control Plan for the Sacramento and San Joaquin River Basins specifies a range for sulfate of 250 - 500 mg/L assessed as an annual average.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 153474, Sulfates	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311959

Pollutant:

Sulfates

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for Sulfate. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153474, Sulfates	Region 5
Pilot Creek (El Dorado County)

LOE ID:

312656

Pollutant:

Sulfates

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for Sulfate. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 153474, Sulfates	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311772

Pollutant:

Sulfates

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for Sulfate. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 153474, Sulfates	Region 5
Pilot Creek (El Dorado County)

LOE ID:

311867

Pollutant:

Sulfates

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the upper limit of the range for Sulfate. Additionally, 0 of the 1 samples fall within the range, and 1 of 1 samples fall below the threshold.

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	147624	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Temperature, water
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
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:

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

212733

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses (Sacramento-San Joaquin River Basin Plans.

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

212365

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

212364

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

213174

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

212734

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

296783

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

296470

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

296707

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147624, Temperature, water	Region 5
Pilot Creek (El Dorado County)

LOE ID:

212736

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129).

Guideline Reference:

Inland Fishes of California

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual


DECISION ID	147623	Region 5
Pilot Creek (El Dorado County)

Pollutant:	pH
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
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 because applicable water quality standards are not being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

296362

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

210630

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed SWAMP Reference Condition Management Plan data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for pH.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

210633

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

210631

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

210625

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Sierra Pacific Industries Research data for Pilot Creek (El Dorado County) to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for pH.

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

209609

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

296388

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

211548

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Non-Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

209144

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

210976

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Non-Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

210963

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Non-Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147623, pH	Region 5
Pilot Creek (El Dorado County)

LOE ID:

296334

Pollutant:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Water Quality Control Plan, Central Valley Region Sacramento River Basin and San Joaquin River Basin: pH should not be lower than 6.5 or higher than 8.5.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP


DECISION ID	147625	Region 5
Pilot Creek (El Dorado County)

Pollutant:	Alkalinity as CaCO3
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2020)
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 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Six lines of evidence are available in the administrative record to assess this pollutant. Five of the six samples exceed the evaluation guideline for COLD. 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. Five of the six samples exceed the evaluation guideline for COLD 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.

Line of Evidence (LOE) for Decision ID 147625, Alkalinity as CaCO3	Region 5
Pilot Creek (El Dorado County)

LOE ID:

207445

Pollutant:

Alkalinity as CaCO3

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.

Objective/Criterion Reference:

Evaluation Guideline:

Alkalinity as CaCO3 levels were assessed for the protection of freshwater aquatic life by comparison to the Evaluation Guideline value of 20,000 ug/L (4 day average)(National Recommended Water Quality Criteria, 2009).

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCAPC2)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147625, Alkalinity as CaCO3	Region 5
Pilot Creek (El Dorado County)

LOE ID:

207446

Pollutant:

Alkalinity as CaCO3

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

SWAMP

Water Quality Objective/Criterion:

Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2017-09-19 and 2017-09-19

Environmental Conditions:

QAPP Information:

SWAMP QAPrP 2008

QAPP Information Reference(s):

Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program

Line of Evidence (LOE) for Decision ID 147625, Alkalinity as CaCO3	Region 5
Pilot Creek (El Dorado County)

LOE ID:

207444

Pollutant:

Alkalinity as CaCO3

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, Water data for the 2020/2022 integrated report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site (514PCASMR)

Temporal Representation:

The samples were collected between the dates of 2018-10-08 and 2018-10-08

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 147625, Alkalinity as CaCO3	Region 5
Pilot Creek (El Dorado County)

LOE ID:

293000

Pollutant:

Alkalinity as CaCO3

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.

Objective/Criterion Reference:

Evaluation Guideline:

The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average).

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPCR (Pilot Creek ~1.2mi above Plum Cr. Rd.).

Temporal Representation:

The samples were collected between the dates of 2014-10-29 and 2014-10-29

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147625, Alkalinity as CaCO3	Region 5
Pilot Creek (El Dorado County)

LOE ID:

292881

Pollutant:

Alkalinity as CaCO3

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.

Objective/Criterion Reference:

Evaluation Guideline:

The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average).

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCAPC2 (Pilot Creek 0.7mi below Plum Cr.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP

Line of Evidence (LOE) for Decision ID 147625, Alkalinity as CaCO3	Region 5
Pilot Creek (El Dorado County)

LOE ID:

293248

Pollutant:

Alkalinity as CaCO3

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Field, Habitat, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 5.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses.

Objective/Criterion Reference:

Evaluation Guideline:

The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average).

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site: 514PCASMR (Pilot Creek ~1.1mi above Ruby Cyn.).

Temporal Representation:

The samples were collected between the dates of 2019-10-08 and 2019-10-08

Environmental Conditions:

QAPP Information:

Sierra Pacific Industries. 2020. Sierra Pacific Industries Research and Monitoring Program QAPP.

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Project Plan

QAPP Information Reference(s):

Research and Monitoring Program Quality Assurance Manual

QAPP Information Reference(s):

Sierra Pacific Industries Research and Monitoring Program QAPP