Line of Evidence (LOE) for Decision ID 144239, Alkalinity as CaCO3
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
277098 |
|
Pollutant: |
Alkalinity as CaCO3 |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144239, Alkalinity as CaCO3
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
277097 |
|
Pollutant: |
Alkalinity as CaCO3 |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Alkalinity as CaCO3. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended alkalinity criterion continuous concentration (CCC) for the protection of aquatic life in freshwater is a minimum value of 20,000 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 151046, Ammonia
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
277660 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
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: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 151046, Ammonia
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
278090 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
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: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 151046, Ammonia
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
279364 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 151046, Ammonia
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
279052 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 151711, Benthic Community Effects
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
306404 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 207WHC634 to determine beneficial use support and the results are as follows: 0 of 1 samples exceeded the threshold. CSCI scores were from 1.101691168 to 1.101691168. |
Data Reference: |
California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use. |
Guideline Reference: |
Bioassessment in complex environments: designing an
index for consistent meaning in different settings
|
|
Spatial Representation: |
Samples were collected from station 207WHC634. |
Temporal Representation: |
Samples were collected from 5/29/2013 to 5/29/2013. |
Environmental Conditions: |
|
QAPP Information: |
Data were collected using Surface Water Ambient Monitoring Program protocols |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144234, Chloride
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
280823 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144234, Chloride
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
280721 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144235, Oxygen, Dissolved
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
285122 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) 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, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as cold water habitat shall be of a 7.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144235, Oxygen, Dissolved
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
285121 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) 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, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144237, Temperature, water
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
|
|
LOE ID: |
289212 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Temperature objectives for surface waters are specified in the San Francisco Bay Regional Water Quality Control Plan. The following temperature objectives apply to surface waters: “- The natural receiving water temperature of inland surface waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. - The temperature of any cold or warm freshwater habitat shall not be increased by more than 5°F (2.8°C) above natural receiving water temperature.” |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Per Effects of Temperature, Dissolved Oxygen/Total Dissolved Gas, Ammonia, and pH on Salmonids (Carter 2008, Moyle 1976, and USEPA 1977), the lethal temperature evaluation guideline for both the steelhead adult migration and holding and the steelhead juvenile growth and rearing life stages is 24°C. |
Guideline Reference: |
Temperature criteria for freshwater fish: protocol and procedures. Ecological
Research Series. EPA-600/3-77-061 (NTIS PB270032). Prepared by W.A. Brungs and B.R. Jones. U.S. Environmental Protection Agency, Washington, D.C |
Guideline Reference: |
Inland Fishes of California |
Guideline Reference: |
Effects of Temperature, Dissolved Oxygen/Total Dissolved Gas, Ammonia, and pH on Salmonids. Implications for California's North Coast TMDLs. California Regional Water Quality Control Board, North Coast Region |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 144238, Turbidity
|
Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
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LOE ID: |
302913 |
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Pollutant: |
Turbidity |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
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Beneficial Use: |
Warm Freshwater Habitat |
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Number of Samples: |
1 |
Number of Exceedances: |
0 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Turbidity. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
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SWAMP Data: |
SWAMP |
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Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
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Evaluation Guideline: |
Turbidities of 40 NTU or greater can cause a reduced foraging efficiency and a shift in prey selection in piscivorous fish (largemouth bass) due to interference with their ability to find prey (Shoup, D.E. and Wahl D.H., 2009). The application of this evaluation guideline was restricted to the dry season (May to October) because runoff and resuspension of fine substrate during storm events may naturally elevate turbidity compared to baseflow conditions. The magnitude and duration of these increases will vary depending on the watershed’s geology and land use and may not represent a chronic turbidity problem. Turbidity is naturally higher in tidal river systems, so sample locations with salinity regimes (i.e., Freshwater or Marine) designated as “Marine” were excluded from this analysis. |
Guideline Reference: |
The Effects of Turbidity on Prey Selection by Piscivorous Largemouth Bass |
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Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
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QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
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Line of Evidence (LOE) for Decision ID 144238, Turbidity
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Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
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LOE ID: |
289223 |
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Pollutant: |
Turbidity |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
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Beneficial Use: |
Cold Freshwater Habitat |
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Number of Samples: |
1 |
Number of Exceedances: |
0 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Turbidity. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
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Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
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Evaluation Guideline: |
Sigler et al. (1984) states that turbidities of 25 NTUs or greater caused reduction in juvenile salmonid growth due to interference with their ability to find food. The application of this evaluation guideline was restricted to the dry season (May to October) because Coho and steelhead early life stages are present during the dry season and feeding becomes infrequent during the winter months (Moyle 2002). Additionally, runoff and resuspension of fine substrate during storm events may naturally elevate turbidity compared to baseflow conditions. The magnitude and duration of these increases will vary depending on the watershed’s geology and land use and may not represent a chronic turbidity problem. Turbidity is naturally higher in tidal river systems, so sample locations with salinity regimes (i.e., Freshwater or Marine) designated as “Marine” were excluded from this analysis. |
Guideline Reference: |
Effects of chronic turbidity on density and growth of steelheads and coho salmon. Transactions of the American Fisheries Society 113:142-150 |
Guideline Reference: |
Inland Fishes of California |
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Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
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QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
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Line of Evidence (LOE) for Decision ID 144236, pH
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Region 2 |
Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) |
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LOE ID: |
286977 |
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Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
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Beneficial Use: |
Cold Freshwater Habitat |
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Number of Samples: |
1 |
Number of Exceedances: |
0 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB2 Monitoring data for Wild Horse Creek subwatershed (Napa and Solano County, Tributary to Green Valley Creek) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. |
Data Reference: |
Field, Habitat, Tissue, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
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SWAMP Data: |
SWAMP |
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Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 pH states: The pH shall not be depressed below 6.5 nor raised above 8.5. This encompasses the pH range usually found in waters within the basin. Controllable water quality factors shall not cause changes greater than 0.5 units in normal ambient pH levels. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
The samples were collected at 1 monitoring site: 207WHC634 (Wild Horse Creek, 480m upstream of confluence with Dug Road Creek; RMC 207R00092). |
Temporal Representation: |
The samples were collected between the dates of 2013-05-29 and 2013-05-29 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements.. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
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