Line of Evidence (LOE) for Decision ID 143138, Toxicity
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
26766 |
|
Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Wildlife Habitat |
|
Number of Samples: |
4 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Toxicity testing of sediments |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise four sediment samples collected as part of a PRISM grant (Lowe et al., 2007) in 2004-2005. All samples were toxic to both freshwater and estuarine amphipods during sampling events and exhibited the lowest per cent survival and highest contaminant concentrations compared to other six tributaries studied. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
Final Project Report: Investigations of Sources and Effects of Pyrethroid Pesticides in Watersheds of the San Francisco Bay Estuary. Proposition 13 PRISM Grant # 041355520. SFEI Contribution #523. San Francisco Estuary Institute, Oakland, CA |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of San Mateo Creek within tidal reach (2 samples) and at the upper location that at the time of sampling represented the freshwater part of the watershed (2 samples). |
Temporal Representation: |
Samples were collected during winter season of 2004 and late spring of 2005. The winter sampling (November 2004) occurred after the first rain of the season to capture the potential effects of dry season pesticide use. The late spring sampling (April 2005) coincided with the presumption of increased pesticide application in urban and agricultural areas. |
Environmental Conditions: |
Data are representative of the lower watershed downstream from Mud Dam with the monitoring site located in the densely urbanized areas. |
QAPP Information: |
Data were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143138, Toxicity
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
26765 |
|
Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Wildlife Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Toxicity testing of sediments |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise one sediment sample collected by the SWAMP in 2003. The sample was toxic to Hyalella (survival was only 18% of control) in the bulk sediment toxicity test and chronic growth was also significantly affected (28.9% of control).
Comprehensive water quality assessment was conducted at seven monitoring sites in the San Mateo Creek watershed as part of SWAMP assessment. The aim of the monitoring was to determine patterns of water quality, protection of beneficial uses and potential impacts of land use and water management. Sampled parameters included physical and biological indicators, conventional water quality, water metals and toxicity as well as sediment metals and toxicity.
SWAMP sediment sample was collected at the tidally influenced urban segment of San Mateo Creek. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of San Mateo Creek within tidal reach. |
Temporal Representation: |
Sample was collected during spring season of 2003. |
Environmental Conditions: |
Data are representative of the lower watershed downstream from Mud Dam with the monitoring site located in the densely urbanized areas. |
QAPP Information: |
Data were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143138, Toxicity
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269096 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 143138, Toxicity
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
29029 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
Three samples were collected in 2003 to evaluate water toxicity at one monitoring location in San Mateo Creek Lower. The toxicity tests included survival and reproduction of Ceriodaphnia, survival and growth of fathead minnow, and growth of Selenastrum.
Statistically significant chronic effects on Pimephales survival was observed in 1 out of 3 samples collected during spring season. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Water toxicity was evaluated according to the SWAMP methodology. The U.S.EPA whole effluent toxicity protocol (U.S.EPA 1994) was used to test the effect of water samples on three freshwater test organisms. Statistical evaluation (alpha = 0.05) and a default threshold of 80% of the control value were used to establish whether water exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. EPA/600/4-91/002. Third Edition. July 1994 |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at one sampling location, SMA020, on three (3) occasions, representative of the lower reach of the creek. |
Temporal Representation: |
SWAMP samples were collected during winter wet season (January), spring season (April), and dry season (June) of 2003. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143138, Toxicity
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269094 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 143138, Toxicity
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93100 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
One sample was collected to evaluate sediment toxicity. The sample exhibited significant toxicity. The toxicity test included survival and growth of Hyalella azteca. One sample can have multiple toxicity test results but will be counted only once. One sample is defined as being collected on the same day at the same location with the same lab sample id (if provided). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. . For SWAMP data exceedances are counted with the significant effect code SL. SL is defined as the result being significant compared to the negative control based on a statistical test, less than stated the alpha level, AND less than the evaluation threshold. |
Guideline Reference: |
Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates, Second Edition. U.S. Environmental Protection Agency Office of Research and Development, Duluth, MI , U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-600/R-99/064 |
|
Spatial Representation: |
The sample was collected at station 204SMA020. |
Temporal Representation: |
The sample was collected in June 2008. |
Environmental Conditions: |
|
QAPP Information: |
All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278150 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
280117 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
277530 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278288 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
277694 |
|
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 BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278267 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278759 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
277881 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278289 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278723 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278705 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278767 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278151 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278245 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278002 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278800 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278305 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279925 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
277842 |
|
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 BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279899 |
|
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 BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279763 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279635 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
280139 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279336 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279480 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279934 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279815 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279814 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
280004 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279503 |
|
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 BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279746 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
280203 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279591 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
279506 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
280009 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N, Unionized. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.20 Un-Ionized Ammonia: The discharge of wastes shall not cause receiving waters to contain concentrations of un-ionized ammonia in excess 0.025 mg/l (as N), expressed as an annual median. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 151008, Ammonia
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
278792 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Total Ammonia criterion continuous concentration (expressed as a 30-day average) to protect aquatic life in freshwater is Temperature and pH dependent, and was calculated according to the formula listed in the Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 document. |
Objective/Criterion Reference: |
Aquatic Life Ambient Water Quality Criteria for Ammonia - Freshwater 2013 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306655 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204SMA060 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.246224069 to 0.246224069. |
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 204SMA060. |
Temporal Representation: |
Samples were collected from 4/1/2003 to 4/1/2003. |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93100 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
One sample was collected to evaluate sediment toxicity. The sample exhibited significant toxicity. The toxicity test included survival and growth of Hyalella azteca. One sample can have multiple toxicity test results but will be counted only once. One sample is defined as being collected on the same day at the same location with the same lab sample id (if provided). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. . For SWAMP data exceedances are counted with the significant effect code SL. SL is defined as the result being significant compared to the negative control based on a statistical test, less than stated the alpha level, AND less than the evaluation threshold. |
Guideline Reference: |
Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates, Second Edition. U.S. Environmental Protection Agency Office of Research and Development, Duluth, MI , U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-600/R-99/064 |
|
Spatial Representation: |
The sample was collected at station 204SMA020. |
Temporal Representation: |
The sample was collected in June 2008. |
Environmental Conditions: |
|
QAPP Information: |
All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306668 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204PS0118 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.531935449 to 0.531935449. |
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 204PS0118. |
Temporal Representation: |
Samples were collected from 6/15/2011 to 6/15/2011. |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306657 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204SMA110 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.249117 to 0.249117. |
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 204SMA110. |
Temporal Representation: |
Samples were collected from 4/1/2003 to 4/1/2003. |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306680 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204R03272 to determine beneficial use support and the results are as follows: 2 of 2 samples exceeded the threshold. CSCI scores were from 0.629205411 to 0.635. |
Data Reference: |
California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use. |
Guideline Reference: |
Bioassessment in complex environments: designing an
index for consistent meaning in different settings
|
|
Spatial Representation: |
Samples were collected from station 204R03272. |
Temporal Representation: |
Samples were collected from 5/31/2017 to 5/26/2020. |
Environmental Conditions: |
|
QAPP Information: |
Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306656 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204SMA080 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.305935238 to 0.305935238. |
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 204SMA080. |
Temporal Representation: |
Samples were collected from 4/1/2003 to 4/1/2003. |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306669 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204R02228 to determine beneficial use support and the results are as follows: 2 of 2 samples exceeded the threshold. CSCI scores were from 0.555987 to 0.600783561. |
Data Reference: |
California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use. |
Guideline Reference: |
Bioassessment in complex environments: designing an
index for consistent meaning in different settings
|
|
Spatial Representation: |
Samples were collected from station 204R02228. |
Temporal Representation: |
Samples were collected from 5/11/2016 to 5/20/2020. |
Environmental Conditions: |
|
QAPP Information: |
Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306681 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204R03528 to determine beneficial use support and the results are as follows: 2 of 2 samples exceeded the threshold. CSCI scores were from 0.57624427 to 0.597364227. |
Data Reference: |
California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use. |
Guideline Reference: |
Bioassessment in complex environments: designing an
index for consistent meaning in different settings
|
|
Spatial Representation: |
Samples were collected from station 204R03528. |
Temporal Representation: |
Samples were collected from 5/16/2018 to 5/26/2020. |
Environmental Conditions: |
|
QAPP Information: |
Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306667 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204SMA120 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.25946 to 0.25946. |
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 204SMA120. |
Temporal Representation: |
Samples were collected from 4/1/2003 to 4/1/2003. |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
90714 |
|
Pollutant: |
Chlordane |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
1 of 1 samples collected exceeded the criteria for chlordane concentration (Sum of trans-Chlordane, cis-Chlordane, cis-Nonachlor, trans-Nonachlor, and Oxychlordane). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
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 other detrimental responses in aquatic organisms. Waters shall not contain substances in concentrations that result in the deposition of material that causes nuisance or adversely affects beneficial uses. (Water Quality Control Plan for the San Francisco Bay Basin). |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
The Probable Effect Concentration for Chlordane in freshwater sediments is 17.6 ug/kg(MacDonald et al. 2000). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected at the following station 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected on 6/18/2008. |
Environmental Conditions: |
|
QAPP Information: |
The SWAMP QAPP (2008) was followed. |
QAPP Information Reference(s): |
Surface Water Ambient Monitoring Program Quality Assurance Program Plan |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
270871 |
|
Pollutant: |
Chlordane |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 4 of the 6 samples exceeded the evaluation guideline for Chlordane . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for chlordane is the probable effect concentration (PEC) of 17.6 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306679 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204R03252 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.670038252 to 0.670038252. |
Data Reference: |
California Stream Condition Index (CSCI) Scores for the 2024 Integrated Report for Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce significant alterations in population or community ecology or receiving water biota. In addition, the health and life history characteristics of aquatic organisms in waters affected by controllable water quality factors shall not differ significantly from those for the same waters in areas unaffected by controllable water quality factors. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use. |
Guideline Reference: |
Bioassessment in complex environments: designing an
index for consistent meaning in different settings
|
|
Spatial Representation: |
Samples were collected from station 204R03252. |
Temporal Representation: |
Samples were collected from 5/31/2017 to 5/31/2017. |
Environmental Conditions: |
|
QAPP Information: |
Data were collected according to BASMAA Regional Monitoring Coalition sampling protocols. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
276031 |
|
Pollutant: |
Pyrethroids |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 2 of the 9 samples exceeded the evaluation guideline for Pyrethroids . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for the protection of aquatic life from pyrethroids is one toxic unit. Individual pyrethroid concentrations in sediment were normalized to organic carbon content, divided by the respective LC50 and then summed. A sum over over one toxic unit is an exceedance of the evaluation guideline (Amweg et al. 2006). |
Guideline Reference: |
Use and Toxicity of Pyrethroid Pesticides in the Central Valley, California, USA. Environmental Toxicology and Chemistry, 24:966-972, with erratum 24:No. 5 |
Guideline Reference: |
Partitioning, bioavailability, and toxicity of the pyrethroid insecticide cypermethrin in sediments. Environmental Toxicology and Chemistry 21:9-15 |
Guideline Reference: |
Toxicity of Sediment-Associated Pesticides to Chironomus dilutus and Hyalella azteca. Arch. Environ. Contam. Toxicol. 61:83¿92. |
Guideline Reference: |
Whole-sediment toxicity identification evaluation tools for pyrethroid insecticides: I. piperonyl butoxide addition. Environ. Toxicol. Chem. 26:2389-2396. |
Guideline Reference: |
Compilation of freshwater OC-normalized sediment toxicity data for pyrethroids |
Guideline Reference: |
Pyrethroid insecticides and sediment toxicity in urban creeks from California and Tennessee. Environmental Science and Technology, 40(5): 1700-1706 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
29029 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
Three samples were collected in 2003 to evaluate water toxicity at one monitoring location in San Mateo Creek Lower. The toxicity tests included survival and reproduction of Ceriodaphnia, survival and growth of fathead minnow, and growth of Selenastrum.
Statistically significant chronic effects on Pimephales survival was observed in 1 out of 3 samples collected during spring season. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Water toxicity was evaluated according to the SWAMP methodology. The U.S.EPA whole effluent toxicity protocol (U.S.EPA 1994) was used to test the effect of water samples on three freshwater test organisms. Statistical evaluation (alpha = 0.05) and a default threshold of 80% of the control value were used to establish whether water exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. EPA/600/4-91/002. Third Edition. July 1994 |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at one sampling location, SMA020, on three (3) occasions, representative of the lower reach of the creek. |
Temporal Representation: |
SWAMP samples were collected during winter wet season (January), spring season (April), and dry season (June) of 2003. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269096 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 154185, Benthic Community Effects
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
306645 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
Water Board staff assessed data for 204SMA020 to determine beneficial use support and the results are as follows: 1 of 1 samples exceeded the threshold. CSCI scores were from 0.32711 to 0.32711. |
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 204SMA020. |
Temporal Representation: |
Samples were collected from 4/1/2003 to 4/1/2003. |
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 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281958 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281996 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281600 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281762 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281749 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282179 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281270 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281789 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282199 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281880 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282180 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282079 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281770 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282121 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281999 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282139 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281550 |
|
Pollutant: |
Chloride |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143111, Chloride
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282122 |
|
Pollutant: |
Chloride |
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 BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Chloride. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The chloride criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 230000 ug/L (230 mg/L)(USEPA National Recommended Water Quality Criteria, 2006). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282164 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282146 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282069 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
281968 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282072 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282641 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282322 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143112, Chlorine
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
282324 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic ife in freshwater is 11 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93109 |
|
Pollutant: |
Chromium |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceed the criterion for Chromium. |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
San Francisco Bay Basin Water Quality Control Plan 2007: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
In freshwater sediments the probable effect concentration (predictive of sediment toxicity for sediment-dwelling organisms) for chromium is 111 mg/Kg dry weight (MacDonald et al. 2000). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data for this line of evidence for San Mateo Creek, Lower was collected at 1 monitoring site [ San Mateo Creek at Gateway Park station (204SMA020)] |
Temporal Representation: |
Data was collected on a single day 6/18/2008. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
SWAMP data collected before September 2008 followed the QAMP (2002), however there may have been overlap in QA with SWAMP QAPP (2008). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
QAPP Information Reference(s): |
Surface Water Ambient Monitoring Program Quality Assurance Program Plan |
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
28767 |
|
Pollutant: |
Chromium (total) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Chromium exceeded the PEC level with a sample concentration of 183 mg/kg dw in one sediment sample collected in spring 2003 (sediment quality guidelines). |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment Quality Guidelines (MacDonald et al., 2000): PEC (probable effect concentration) chromium - 111 mg/kg dw. |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
One sediment sample was collected at a "watershed integrator" site located close to the mouth of San Mateo Creek. |
Temporal Representation: |
Sediment sample was collected in April of 2003. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
26766 |
|
Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Wildlife Habitat |
|
Number of Samples: |
4 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Toxicity testing of sediments |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise four sediment samples collected as part of a PRISM grant (Lowe et al., 2007) in 2004-2005. All samples were toxic to both freshwater and estuarine amphipods during sampling events and exhibited the lowest per cent survival and highest contaminant concentrations compared to other six tributaries studied. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
Final Project Report: Investigations of Sources and Effects of Pyrethroid Pesticides in Watersheds of the San Francisco Bay Estuary. Proposition 13 PRISM Grant # 041355520. SFEI Contribution #523. San Francisco Estuary Institute, Oakland, CA |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of San Mateo Creek within tidal reach (2 samples) and at the upper location that at the time of sampling represented the freshwater part of the watershed (2 samples). |
Temporal Representation: |
Samples were collected during winter season of 2004 and late spring of 2005. The winter sampling (November 2004) occurred after the first rain of the season to capture the potential effects of dry season pesticide use. The late spring sampling (April 2005) coincided with the presumption of increased pesticide application in urban and agricultural areas. |
Environmental Conditions: |
Data are representative of the lower watershed downstream from Mud Dam with the monitoring site located in the densely urbanized areas. |
QAPP Information: |
Data were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
26765 |
|
Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Wildlife Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Toxicity testing of sediments |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise one sediment sample collected by the SWAMP in 2003. The sample was toxic to Hyalella (survival was only 18% of control) in the bulk sediment toxicity test and chronic growth was also significantly affected (28.9% of control).
Comprehensive water quality assessment was conducted at seven monitoring sites in the San Mateo Creek watershed as part of SWAMP assessment. The aim of the monitoring was to determine patterns of water quality, protection of beneficial uses and potential impacts of land use and water management. Sampled parameters included physical and biological indicators, conventional water quality, water metals and toxicity as well as sediment metals and toxicity.
SWAMP sediment sample was collected at the tidally influenced urban segment of San Mateo Creek. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of San Mateo Creek within tidal reach. |
Temporal Representation: |
Sample was collected during spring season of 2003. |
Environmental Conditions: |
Data are representative of the lower watershed downstream from Mud Dam with the monitoring site located in the densely urbanized areas. |
QAPP Information: |
Data were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93100 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
One sample was collected to evaluate sediment toxicity. The sample exhibited significant toxicity. The toxicity test included survival and growth of Hyalella azteca. One sample can have multiple toxicity test results but will be counted only once. One sample is defined as being collected on the same day at the same location with the same lab sample id (if provided). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. . For SWAMP data exceedances are counted with the significant effect code SL. SL is defined as the result being significant compared to the negative control based on a statistical test, less than stated the alpha level, AND less than the evaluation threshold. |
Guideline Reference: |
Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates, Second Edition. U.S. Environmental Protection Agency Office of Research and Development, Duluth, MI , U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-600/R-99/064 |
|
Spatial Representation: |
The sample was collected at station 204SMA020. |
Temporal Representation: |
The sample was collected in June 2008. |
Environmental Conditions: |
|
QAPP Information: |
All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
290662 |
|
Pollutant: |
Chromium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
The San Mateo Creek watershed was monitored as part of SWAMP assessment. None of the three samples exceeded the water quality objectives for arsenic, chromium VI, copper, lead, nickel, silver and zinc. Concentrations of total dissolved chromium were well below the objective for chromium VI. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. Table 3-4 in the Basin Plan (2007) lists freshwater water quality objectives for toxic pollutants: arsenic- 150 ug/L, chromium VI- 11 ug/L, copper - 9.0 ug/L, lead - 2.5 ug/L; nickel - 52 ug/L, silver-3.4 ug/L and zinc - 120 ug/L. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Data were collected at one most downstream sampling location in San Mateo Creek - SMA020 (Gateway Park). |
Temporal Representation: |
Samples were collected locations during wet, spring and dry seasons of the 2003-2004 sampling season. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
270939 |
|
Pollutant: |
Chromium |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 4 of the 5 samples exceeded the evaluation guideline for Chromium . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2018-06-28 |
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 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269096 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269094 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 143149, Chromium
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
271244 |
|
Pollutant: |
Chromium |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 4 of the 5 samples exceeded the evaluation guideline for Chromium . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for chromium is the probable effect concentration (PEC) of 111 mg/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2018-06-28 |
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 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93100 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
One sample was collected to evaluate sediment toxicity. The sample exhibited significant toxicity. The toxicity test included survival and growth of Hyalella azteca. One sample can have multiple toxicity test results but will be counted only once. One sample is defined as being collected on the same day at the same location with the same lab sample id (if provided). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. . For SWAMP data exceedances are counted with the significant effect code SL. SL is defined as the result being significant compared to the negative control based on a statistical test, less than stated the alpha level, AND less than the evaluation threshold. |
Guideline Reference: |
Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates, Second Edition. U.S. Environmental Protection Agency Office of Research and Development, Duluth, MI , U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-600/R-99/064 |
|
Spatial Representation: |
The sample was collected at station 204SMA020. |
Temporal Representation: |
The sample was collected in June 2008. |
Environmental Conditions: |
|
QAPP Information: |
All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269096 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269094 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93116 |
|
Pollutant: |
DDE (Dichlorodiphenyldichloroethylene) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 1 of 1 samples exceed the criterion for DDE. |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
San Francisco Bay Basin Water Quality Control Plan 2007: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
In freshwater sediments the probable effect concentration (predictive of sediment toxicity for sediment-dwelling organisms) for sum of DDE is 31.3 ug/Kg dry weight (MacDonald et al. 2000). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data for this line of evidence for San Mateo Creek, Lower was collected at 1 monitoring site [ San Mateo Creek at Gateway Park station (204SMA020)] |
Temporal Representation: |
Data was collected on a single day 6/18/2008. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
SWAMP data collected before September 2008 followed the QAMP (2002), however there may have been overlap in QA with SWAMP QAPP (2008). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
QAPP Information Reference(s): |
Surface Water Ambient Monitoring Program Quality Assurance Program Plan |
|
Line of Evidence (LOE) for Decision ID 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
272180 |
|
Pollutant: |
DDE (Dichlorodiphenyldichloroethylene) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 3 of the 6 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for the sum of DDE is the probable effect concentration (PEC) of 31.3 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
290588 |
|
Pollutant: |
DDE (Dichlorodiphenyldichloroethylene) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
None |
|
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: |
Concentrations of anthracene, fluorene, napthalene, phenanthrene, benz(a)anthracene, benzo(a)pyrene, chrysene, fluoranthrene, pyrene, PAH (total), PCB (total), chlordane, dieldrin, DDD/DDE/DDT, endrin, heptachlor epoxide, and HCH, gamma in one sediment sample collected in spring 2005 did not exceed the sediment quality guidelines. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment Quality Guidelines (MacDonald et al., 2000): PEC (probable effect concentration) Anthracene - 845 ug/kg; Fluorene - 536 ug/kg; Naphthalene - 561 ug/kg; Phenanthrene -1170 ug/kg; Benz(a)anthracene - 1050 ug/kg; Benzo(a)pyrene - 1450 ug/kg; Chrysene - 1290 ug/kg; Fluoranthene - 2230 ug/kg; Pyrene - 1520 ug/kg; PAH (total) - 22800 ug/kg; PCB (total) - 676 ug/kg; Chlordane - 17.6 ug/kg; Dieldrin - 61.8 ug/kg; DDD (sum op + pp) - 28 ug/kg; DDE (sum op + pp) - 31.3 ug/kg; DDT (sum op + pp) - 62.9 ug/kg; DDT (total) - 572 ug/kg; Endrin - 207 ug/kg; Heptachlor epoxide - 16 ug/kg; HCH, gamma - 4.99 ug/kg. |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
One sediment sample was collected at a watershed integrator site close to the mouth of San Mateo Creek (Gateway Park). |
Temporal Representation: |
Sediment sample was collected in April of 2003. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
272240 |
|
Pollutant: |
DDE (Dichlorodiphenyldichloroethylene) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 3 of the 6 samples exceeded the evaluation guideline for DDE (Dichlorodiphenyldichloroethylene) . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for the sum of DDE is the probable effect concentration (PEC) of 31.3 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
26766 |
|
Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Wildlife Habitat |
|
Number of Samples: |
4 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Toxicity testing of sediments |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise four sediment samples collected as part of a PRISM grant (Lowe et al., 2007) in 2004-2005. All samples were toxic to both freshwater and estuarine amphipods during sampling events and exhibited the lowest per cent survival and highest contaminant concentrations compared to other six tributaries studied. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
Final Project Report: Investigations of Sources and Effects of Pyrethroid Pesticides in Watersheds of the San Francisco Bay Estuary. Proposition 13 PRISM Grant # 041355520. SFEI Contribution #523. San Francisco Estuary Institute, Oakland, CA |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of San Mateo Creek within tidal reach (2 samples) and at the upper location that at the time of sampling represented the freshwater part of the watershed (2 samples). |
Temporal Representation: |
Samples were collected during winter season of 2004 and late spring of 2005. The winter sampling (November 2004) occurred after the first rain of the season to capture the potential effects of dry season pesticide use. The late spring sampling (April 2005) coincided with the presumption of increased pesticide application in urban and agricultural areas. |
Environmental Conditions: |
Data are representative of the lower watershed downstream from Mud Dam with the monitoring site located in the densely urbanized areas. |
QAPP Information: |
Data were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 148194, DDE (Dichlorodiphenyldichloroethylene)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
26765 |
|
Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Wildlife Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Toxicity testing of sediments |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise one sediment sample collected by the SWAMP in 2003. The sample was toxic to Hyalella (survival was only 18% of control) in the bulk sediment toxicity test and chronic growth was also significantly affected (28.9% of control).
Comprehensive water quality assessment was conducted at seven monitoring sites in the San Mateo Creek watershed as part of SWAMP assessment. The aim of the monitoring was to determine patterns of water quality, protection of beneficial uses and potential impacts of land use and water management. Sampled parameters included physical and biological indicators, conventional water quality, water metals and toxicity as well as sediment metals and toxicity.
SWAMP sediment sample was collected at the tidally influenced urban segment of San Mateo Creek. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 1322¿1329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of San Mateo Creek within tidal reach. |
Temporal Representation: |
Sample was collected during spring season of 2003. |
Environmental Conditions: |
Data are representative of the lower watershed downstream from Mud Dam with the monitoring site located in the densely urbanized areas. |
QAPP Information: |
Data were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
276383 |
|
Pollutant: |
Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
272529 |
|
Pollutant: |
DDT (Dichlorodiphenyltrichloroethane) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the evaluation guideline for DDT (Dichlorodiphenyltrichloroethane) . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for the sum of DDT is the probable effect concentration (PEC) of 62.9 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
290589 |
|
Pollutant: |
DDT (Dichlorodiphenyltrichloroethane) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
None |
|
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: |
Concentrations of anthracene, fluorene, napthalene, phenanthrene, benz(a)anthracene, benzo(a)pyrene, chrysene, fluoranthrene, pyrene, PAH (total), PCB (total), chlordane, dieldrin, DDD/DDE/DDT, endrin, heptachlor epoxide, and HCH, gamma in one sediment sample collected in spring 2005 did not exceed the sediment quality guidelines. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment Quality Guidelines (MacDonald et al., 2000): PEC (probable effect concentration) Anthracene - 845 ug/kg; Fluorene - 536 ug/kg; Naphthalene - 561 ug/kg; Phenanthrene -1170 ug/kg; Benz(a)anthracene - 1050 ug/kg; Benzo(a)pyrene - 1450 ug/kg; Chrysene - 1290 ug/kg; Fluoranthene - 2230 ug/kg; Pyrene - 1520 ug/kg; PAH (total) - 22800 ug/kg; PCB (total) - 676 ug/kg; Chlordane - 17.6 ug/kg; Dieldrin - 61.8 ug/kg; DDD (sum op + pp) - 28 ug/kg; DDE (sum op + pp) - 31.3 ug/kg; DDT (sum op + pp) - 62.9 ug/kg; DDT (total) - 572 ug/kg; Endrin - 207 ug/kg; Heptachlor epoxide - 16 ug/kg; HCH, gamma - 4.99 ug/kg. |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
One sediment sample was collected at a watershed integrator site close to the mouth of San Mateo Creek (Gateway Park). |
Temporal Representation: |
Sediment sample was collected in April of 2003. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
272468 |
|
Pollutant: |
DDT (Dichlorodiphenyltrichloroethane) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the evaluation guideline for DDT (Dichlorodiphenyltrichloroethane) . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for the sum of DDT is the probable effect concentration (PEC) of 62.9 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93099 |
|
Pollutant: |
Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
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 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceed the criterion for DDT, Total. |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
San Francisco Bay Basin Water Quality Control Plan 2007: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
In freshwater sediments the probable effect concentration (predictive of sediment toxicity for sediment-dwelling organisms) for total DDTs is 572 ug/Kg dry weight (MacDonald et al. 2000). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data for this line of evidence for San Mateo Creek, Lower was collected at 1 monitoring site [ San Mateo Creek at Gateway Park station (204SMA020)] |
Temporal Representation: |
Data was collected on a single day 6/18/2008. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
SWAMP data collected before September 2008 followed the QAMP (2002), however there may have been overlap in QA with SWAMP QAPP (2008). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
QAPP Information Reference(s): |
Surface Water Ambient Monitoring Program Quality Assurance Program Plan |
|
Line of Evidence (LOE) for Decision ID 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93117 |
|
Pollutant: |
DDT (Dichlorodiphenyltrichloroethane) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
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 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceed the criterion for DDT. |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
San Francisco Bay Basin Water Quality Control Plan 2007: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
In freshwater sediments the probable effect concentration (predictive of sediment toxicity for sediment-dwelling organisms) for sum of DDT is 62.9 ug/Kg dry weight (MacDonald et al. 2000). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data for this line of evidence for San Mateo Creek, Lower was collected at 1 monitoring site [ San Mateo Creek at Gateway Park station (204SMA020)] |
Temporal Representation: |
Data was collected on a single day 6/18/2008. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
SWAMP data collected before September 2008 followed the QAMP (2002), however there may have been overlap in QA with SWAMP QAPP (2008). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
QAPP Information Reference(s): |
Surface Water Ambient Monitoring Program Quality Assurance Program Plan |
|
Line of Evidence (LOE) for Decision ID 148342, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
276342 |
|
Pollutant: |
Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 6 samples exceeded the evaluation guideline for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for total DDTs is the probable effect concentration (PEC) of 572 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
28621 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
14 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Comprehensive water quality assessment was conducted at San Mateo Creek watershed as part of SWAMP assessment in 2003 and 2004. Continuous field monitoring of temperature, dissolved oxygen, pH, and specific conductance to determine temporal variability in basic water quality at one or two locations. The 7 day average minimum concentration of dissolved oxygen ranged from 0.86 to 12.09 mg/L and varied with season. Minimum dissolved oxygen levels fell below the objective of 5 mg/L at one location each in spring (March 2003), the summer (August 2003) and the fall (October 2003) sampling events. The 7 day average concentration levels were 1.0, 0.86, and 2.69 mg/L DO, respectively, at the lower monitoring sites. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
The numeric water quality objective for dissolved oxygen is 5.0 mg/L minimum for waters designated as warm water habitat. The median dissolved oxygen concentration for any three consecutive months shall not be less than 80 percent of the dissolved oxygen content at saturation. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Dissolved oxygen was measured at three sites (SMA020, SMA060, and SMA120) located on the mainstem of San Mateo Creek Lower and one site (SMA110) located at the confluence of Polhemus Creek and San Mateo Creek. |
Temporal Representation: |
At all locations the SWAMP performed continuous monitoring of dissolved oxygen at 15 minute intervals lasting 7-20 days during spring (March 2003), summer and fall dry seasons (July, October 2003), and winter wet season (February 2004). |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286307 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
7 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
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: 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the dates of 2014-06-25 and 2020-07-15 |
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 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
284998 |
|
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 BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285874 |
|
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 BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286537 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285164 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
7 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
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: 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the dates of 2014-06-25 and 2020-07-15 |
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 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
284777 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285753 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285027 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
284981 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286418 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286674 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285944 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285136 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285470 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285165 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286718 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285352 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286444 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as warm water habitat shall be of a 5.0 mg/l minimum. (Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives.) |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
286096 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
285752 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Dissolved oxygen objectives for waters designated as 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: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143130, Oxygen, Dissolved
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
28623 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
14 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Comprehensive water quality assessment was conducted at San Mateo Creek watershed as part of SWAMP assessment in 2003 and 2004. Continuous field monitoring of temperature, dissolved oxygen, pH, and specific conductance to determine temporal variability in basic water quality at one or two locations. The 7 day average minimum concentration of dissolved oxygen ranged from 0.86 to 12.09 mg/L and varied with season. Minimum dissolved oxygen levels fell below the objective of 7 mg/L at one location in spring (March 2003), two in the summer (August 2003) and one in the fall (October 2003) sampling events. The 7 day average concentration levels were 1.0, 0.86, 6.10, and 2.69 mg/L DO, respectively, at the lower monitoring sites. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
The numeric water quality objective for dissolved oxygen is 7.0 mg/L minimum for waters designated as cold water habitat. The median dissolved oxygen concentration for any three consecutive months shall not be less than 80 percent of the dissolved oxygen content at saturation. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Dissolved oxygen was measured at three sites ( SMA020, SMA060, and SMA120) located on the mainstem of San Mateo Creek Lower and one site (SMA110) located at the confluence of Polhemus Creek and San Mateo Creek. |
Temporal Representation: |
At all locations the SWAMP performed continuous monitoring of dissolved oxygen at 15 minute intervals lasting 7-20 days during spring (March 2003), summer and fall dry season (July and October 2003), and winter wet season (February 2004). |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288592 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298925 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298858 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
29030 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
15 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water quality assessment was conducted at the San Mateo Creek watershed as part of SWAMP study in 2003-2004. Continuous field monitoring at 15 minute increments of temperature, dissolved oxygen, pH and specific conductance was conducted to determine temporal variability in basic water quality at three to four locations. Continuous monitoring sondes were deployed 15 times at monitoring locations during wet, spring and two dry seasons. The measured temperatures ranged from 6.76°C to 24.86°C and varied with season. During the three of the four summer season deployments, the 7-day mean temperature threshold for steelhead was exceeded. In total, the 17 °C criterion was exceeded in 3 out of 15 deployments. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Temperature objectives for enclosed bays and estuaries are specified in the "Water Quality Control Plan for Control of Temperature in the Coastal and Interstate Waters and Enclosed Bays of California" including any revisions to the plan. In addition, the following temperature objectives apply to surface waters: The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such an alteration 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 Region (Region 2) |
|
Evaluation Guideline: |
Sullivan et al. (2000) reviewed a wide range of studies incorporating information from laboratory-based research, field observations, and risk assessment approaches and developed criteria for assessing temperature risk to aquatic life. The 7-day mean temperature (maximum value of a 7-day moving average of the daily mean temperature) of 14.8°C was established as the upper threshold criterion for coho salmon and 17.0°C for steelhead trout. The risk assessment approach used by Sullivan et al. (2000) suggests that temperatures exceeding the above thresholds will cause a 10% reduction in average growth compared to optimal conditions. |
Guideline Reference: |
An Analysis of the Effects of Temperature on Salmonids of the Pacific Northwest with Implications for Selecting Temperature Criteria |
|
Spatial Representation: |
Continuous field monitoring at 15 minute increments of temperature was performed at three sites ( SMA020, SMA060, and SMA120) located on the mainstem of San Mateo Creek Lower and one site (SMA110) located at the confluence of Polhemus Creek and San Mateo Creek. |
Temporal Representation: |
At all locations the SWAMP performed continuous monitoring of temperature at 15 minute intervals lasting 1-2 weeks during spring (April 2003), summer and fall dry seasons (August and October 2003), and winter wet season (February 2004). |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288576 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288438 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288427 |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288523 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 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: 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the dates of 2013-06-26 and 2020-07-15 |
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 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288667 |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288584 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288499 |
|
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 BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288150 |
|
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 BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
288577 |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298583 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298859 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299004 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298943 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298689 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298675 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the dates of 2013-06-26 and 2020-07-15 |
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 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298837 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143136, Temperature, water
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
298912 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
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 degrees F (2.8 degrees C) above natural receiving water temperature. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
Scientific literature reviewed by the Washington Department of Ecology and U.S. EPA indicates that stream temperatures higher than 21C are associated with avoidance behavior and migration blockages in steelhead trout. |
Guideline Reference: |
EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. Region 10 Office of Water, Seattle, WA |
Guideline Reference: |
U.S. Environmental Protection Agency (USEPA). 2001. Issue Paper 1: Salmonid Behavior and Water Temperature Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. Region 10, Seattle, WA. EPA-910-D-01-001 May 2001. |
Guideline Reference: |
Washington State Department of Ecology (WDOE). 2002. Evaluating Standards for Protecting Aquatic Life in Washington’s Surface Water Quality Standards: Temperature Criteria. Draft Discussion Paper and Literature Summary. Publication Number 00-10-070. |
Guideline Reference: |
Beschta RL, Bilby RE, Brown GW, Holtby LB, Hofstra TD. 1987. Stream temperature and aquatic habitat: Fisheries and forestry interactions. In: Salo EO, Cundy TW, eds. Streamside management: forestry and fishery interactions. College of Forest Resources, University of Washington, Seattle. Contribution No. 57. Proceedings of a Symposium held at University of Washington, February 12-14, 1986, pp. 191-231. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
29039 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
15 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Comprehensive water quality assessment was conducted at San Mateo Creek watershed as part of SWAMP assessment in 2003 and 2004. Continuous field monitoring of temperature, dissolved oxygen, pH, and specific conductance to determine temporal variability in basic water quality at three to four locations, throughout San Mateo Creek, ranging from 1-15 days. The pH ranged from 7.01 to 8.51 and varied with season. There was one exceedence. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
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 Region (Region 2) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
pH was measured at three sites ( SMA020, SMA060, and SMA120) located on the mainstem of San Mateo Creek Lower and one site (SMA110) located at the confluence of Polhemus Creek and San Mateo Creek. |
Temporal Representation: |
At all locations the SWAMP performed continuous monitoring of pH at 15 minute intervals lasting 1-15 days during spring (March 2003), summer and fall dry seasons (August and October 2003), and winter wet season (February 2004). |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB 2002).. |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287238 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287262 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03272 (San Mateo Creek u/s Crystal Springs). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287300 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2017 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03252 (San Mateo Creek at East End of De Anza Park). |
Temporal Representation: |
The samples were collected between the dates of 2017-05-31 and 2017-05-31 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc., Applied Marine Sciences, Armand Ruby Consulting . 2016. BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan. |
QAPP Information Reference(s): |
BASMAA Regional Monitoring Coalition Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287048 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 Perennial Stream Surveys data for San Mateo Creek, Lower 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, 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 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204PS0118 (San Mateo Creek below I-280). |
Temporal Representation: |
The samples were collected between the dates of 2011-06-15 and 2011-06-15 |
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 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287011 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-20 and 2020-05-20 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287010 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R04884 (San Mateo Creek at Tartan Trail). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-21 and 2020-05-21 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287009 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
7 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for pH. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the dates of 2014-06-25 and 2020-07-15 |
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 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287383 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R02228 (Access at South School). |
Temporal Representation: |
The samples were collected between the dates of 2016-05-11 and 2016-05-11 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287243 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2020 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2020-05-26 and 2020-05-26 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2000. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project |
|
Line of Evidence (LOE) for Decision ID 143131, pH
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
287151 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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 BASMAA RMC Monitoring in WY2018 data for San Mateo Creek, Lower 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, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.9 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) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 204R03528 (San Mateo Creek at Crystal Springs Rd). |
Temporal Representation: |
The samples were collected between the dates of 2018-05-16 and 2018-05-16 |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
270971 |
|
Pollutant: |
Chlordane |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 4 of the 6 samples exceeded the evaluation guideline for Chlordane . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for chlordane is the probable effect concentration (PEC) of 17.6 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
270871 |
|
Pollutant: |
Chlordane |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP Stream Pollution Trends data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 4 of the 6 samples exceeded the evaluation guideline for Chlordane . |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
Section 3.3.18 of the San Francisco Bay Region's Basin Plan contains the narrative toxicity objective stating that all waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The evaluation guideline for chlordane is the probable effect concentration (PEC) of 17.6 ug/kg dry weight (MacDonald et al., 2000a). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2011-07-08 to 2019-07-02 |
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 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
290573 |
|
Pollutant: |
Chlordane |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
None |
|
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: |
Concentrations of anthracene, fluorene, napthalene, phenanthrene, benz(a)anthracene, benzo(a)pyrene, chrysene, fluoranthrene, pyrene, PAH (total), PCB (total), chlordane, dieldrin, DDD/DDE/DDT, endrin, heptachlor epoxide, and HCH, gamma in one sediment sample collected in spring 2005 did not exceed the sediment quality guidelines. |
Data Reference: |
Water Quality Monitoring and Bioassessment in Four San Francisco Bay Region Watersheds in 2003-2004: Kirker Creek, Mt. Diablo Creek, Petaluma River, and San Mateo Creek. Surface Water Monitoring Program, San Francisco Bay Regional Water Quality Control Board, Oakland. CA |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Sediment Quality Guidelines (MacDonald et al., 2000): PEC (probable effect concentration) Anthracene - 845 ug/kg; Fluorene - 536 ug/kg; Naphthalene - 561 ug/kg; Phenanthrene -1170 ug/kg; Benz(a)anthracene - 1050 ug/kg; Benzo(a)pyrene - 1450 ug/kg; Chrysene - 1290 ug/kg; Fluoranthene - 2230 ug/kg; Pyrene - 1520 ug/kg; PAH (total) - 22800 ug/kg; PCB (total) - 676 ug/kg; Chlordane - 17.6 ug/kg; Dieldrin - 61.8 ug/kg; DDD (sum op + pp) - 28 ug/kg; DDE (sum op + pp) - 31.3 ug/kg; DDT (sum op + pp) - 62.9 ug/kg; DDT (total) - 572 ug/kg; Endrin - 207 ug/kg; Heptachlor epoxide - 16 ug/kg; HCH, gamma - 4.99 ug/kg. |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
One sediment sample was collected at a watershed integrator site close to the mouth of San Mateo Creek (Gateway Park). |
Temporal Representation: |
Sediment sample was collected in April of 2003. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
90714 |
|
Pollutant: |
Chlordane |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
1 of 1 samples collected exceeded the criteria for chlordane concentration (Sum of trans-Chlordane, cis-Chlordane, cis-Nonachlor, trans-Nonachlor, and Oxychlordane). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
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 other detrimental responses in aquatic organisms. Waters shall not contain substances in concentrations that result in the deposition of material that causes nuisance or adversely affects beneficial uses. (Water Quality Control Plan for the San Francisco Bay Basin). |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
The Probable Effect Concentration for Chlordane in freshwater sediments is 17.6 ug/kg(MacDonald et al. 2000). |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected at the following station 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected on 6/18/2008. |
Environmental Conditions: |
|
QAPP Information: |
The SWAMP QAPP (2008) was followed. |
QAPP Information Reference(s): |
Surface Water Ambient Monitoring Program Quality Assurance Program Plan |
|
Line of Evidence (LOE) for Decision ID 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
93100 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
One sample was collected to evaluate sediment toxicity. The sample exhibited significant toxicity. The toxicity test included survival and growth of Hyalella azteca. One sample can have multiple toxicity test results but will be counted only once. One sample is defined as being collected on the same day at the same location with the same lab sample id (if provided). |
Data Reference: |
Statewide Stream Pollution Trends Study 2008 |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2) |
|
Evaluation Guideline: |
Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. . For SWAMP data exceedances are counted with the significant effect code SL. SL is defined as the result being significant compared to the negative control based on a statistical test, less than stated the alpha level, AND less than the evaluation threshold. |
Guideline Reference: |
Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates, Second Edition. U.S. Environmental Protection Agency Office of Research and Development, Duluth, MI , U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-600/R-99/064 |
|
Spatial Representation: |
The sample was collected at station 204SMA020. |
Temporal Representation: |
The sample was collected in June 2008. |
Environmental Conditions: |
|
QAPP Information: |
All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269094 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 143110, Chlordane
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
269096 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
5 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
5 of the 10 samples collected by SWAMP Stream Pollution Trends for San Mateo Creek, Lower exhibited toxicity. A sample may have multiple toxicity test results, but will only be counted once. A sample is defined as being collected on the same day and the same location. The following organisms and parameters were utilized for the toxicity tests: Hyalella azteca for Growth (wt/surv indiv), Hyalella azteca for Survival, Chironomus dilutus for Survival, Chironomus dilutus for Growth (wt/surv indiv). The following tests exhibited toxicity: Hyalella azteca for Survival on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2011-07-08, Hyalella azteca for Growth (wt/surv indiv) on 2013-06-26, Hyalella azteca for Growth (wt/surv indiv) on 2014-06-25, Hyalella azteca for Survival on 2014-06-25, Hyalella azteca for Growth (wt/surv indiv) on 2016-07-14, Hyalella azteca for Survival on 2019-07-02. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. Acute toxicity is defined as a median of less than 90 percent survival, or less than 70 percent survival, 10 percent of the time, of test organisms in a 96-hour static or continuous flow test. There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. Attainment of this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, or toxicity tests (including those described in Chapter 4), or other methods selected by the Water Board. The Water Board will also consider other relevant information and numeric criteria and guidelines for toxic substances developed by other agencies as appropriate. |
Objective/Criterion Reference: |
Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2) |
|
Evaluation Guideline: |
The sample is toxic when the response of the organisms exposed to the sample is significantly different (worse) than the response of the organisms exposed to the laboratory control based on statistical hypothesis testing. An exceedance is counted when the significant effect code is “Significant; Less Similarity,” which means that the sample result is significantly different than the control result, and the percent effect is greater than the evaluation threshold. The default evaluation threshold is 20% unless otherwise stated. |
Guideline Reference: |
Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 |
|
Spatial Representation: |
The samples were collected at monitoring site: 204SMA020 ( San Mateo Creek at Gateway Park ). |
Temporal Representation: |
The samples were collected between the dates of 2011-07-08 and 2020-07-15. |
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 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299880 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
90th percentile |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-day 90% percentile. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.1 Bacteria: Table 3-1 provides a summary of the bacterial water quality objectives and identifies the sources of those objectives. The fecal coliform objective for non-contact recreation is a 30-day 90th percentile less than 4000 MPN/100 ML. |
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(s), station(s): 204SMA120 (Above Polhemus). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299648 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
90th percentile |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-day 90% percentile. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.1 Bacteria: Table 3-1 provides a summary of the bacterial water quality objectives and identifies the sources of those objectives. The fecal coliform objective for non-contact recreation is a 30-day 90th percentile less than 4000 MPN/100 ML. |
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(s), station(s): 204SMA081 (San Mateo Creek at downstream Sierra Dr.-204SMA081). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299604 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
90th percentile |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-day 90% percentile. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.1 Bacteria: Table 3-1 provides a summary of the bacterial water quality objectives and identifies the sources of those objectives. The fecal coliform objective for non-contact recreation is a 30-day 90th percentile less than 4000 MPN/100 ML. |
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(s), station(s): 204SMA060 (De Anza Historical Park on Arroyo Court). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299861 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
90th percentile |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-day 90% percentile. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.1 Bacteria: Table 3-1 provides a summary of the bacterial water quality objectives and identifies the sources of those objectives. The fecal coliform objective for non-contact recreation is a 30-day 90th percentile less than 4000 MPN/100 ML. |
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(s), station(s): 204SMA110 (Polhemus). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299669 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
90th percentile |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-day 90% percentile. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.1 Bacteria: Table 3-1 provides a summary of the bacterial water quality objectives and identifies the sources of those objectives. The fecal coliform objective for non-contact recreation is a 30-day 90th percentile less than 4000 MPN/100 ML. |
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(s), station(s): 204SMA100 (San Mateo Creek at Tartan Trail Rd). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299662 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
90th percentile |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2012 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-day 90% percentile. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, San Francisco Bay Basin, Chapter III Water Quality Objectives, Section 3.3.1 Bacteria: Table 3-1 provides a summary of the bacterial water quality objectives and identifies the sources of those objectives. The fecal coliform objective for non-contact recreation is a 30-day 90th percentile less than 4000 MPN/100 ML. |
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(s), station(s): 204SMA060 (De Anza Historical Park on Arroyo Court). |
Temporal Representation: |
The samples were collected between the days of 2012-07-17 and 2012-07-17 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299581 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA100 (San Mateo Creek at Tartan Trail Rd). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299777 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA081 (San Mateo Creek at downstream Sierra Dr.-204SMA081). |
Temporal Representation: |
The samples were collected between the days of 2016-06-22 and 2016-06-22 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299757 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA100 (San Mateo Creek at Tartan Trail Rd). |
Temporal Representation: |
The samples were collected between the days of 2016-06-22 and 2016-06-22 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299626 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA110 (Polhemus). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299561 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
8 |
Number of Exceedances: |
7 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 7 of the 8 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA060 (De Anza Historical Park on Arroyo Court). |
Temporal Representation: |
The samples were collected between the days of 2014-02-26 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299583 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA081 (San Mateo Creek at downstream Sierra Dr.-204SMA081). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299716 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA110 (Polhemus). |
Temporal Representation: |
The samples were collected between the days of 2016-06-22 and 2016-06-22 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299713 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA060 (De Anza Historical Park on Arroyo Court). |
Temporal Representation: |
The samples were collected between the days of 2016-06-22 and 2016-06-22 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299708 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2012 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA060 (De Anza Historical Park on Arroyo Court). |
Temporal Representation: |
The samples were collected between the days of 2012-07-17 and 2012-07-17 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2012. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299606 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
7 |
Number of Exceedances: |
7 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 7 of the 7 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the days of 2014-02-26 and 2014-11-04 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299646 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2015 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA120 (Above Polhemus). |
Temporal Representation: |
The samples were collected between the days of 2015-06-30 and 2015-06-30 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2014. Creek Status Monitoring Program Quality Assurance Project Plan. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|
Line of Evidence (LOE) for Decision ID 148687, Indicator Bacteria
|
Region 2 |
San Mateo Creek, Lower |
|
|
LOE ID: |
299733 |
|
Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
STV |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BASMAA RMC Monitoring in WY2016 data for San Mateo Creek, Lower to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the Statistical Threshold Value (STV) water quality threshold for E. coli. The STV is based on a 10% exceedance rate that is calculated monthly. |
Data Reference: |
Field, Habitat, Toxicity, WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 2. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The bacteria water quality objective to protect the REC-1 beneficial use where the salinity is less than 1 parts per thousand 95 percent or more of the time applies a statistical threshold value to E. coli of 320 cfu/100 mL, not to be exceeded by more than 10 percent of samples within a calendar month (ISWEBE 2018). |
Objective/Criterion Reference: |
Inland Surface Waters, Enclosed Bays, and Estuaries Plan. Part 1: Trash Provisions; Part 2: Tribal Subsistence Beneficial Uses and Mercury Provisions; Part 3: Bacteria Provisions and Variance Policy |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site(s), station(s): 204SMA020 (San Mateo Creek at Gateway Park). |
Temporal Representation: |
The samples were collected between the days of 2016-06-22 and 2016-06-22 . |
Environmental Conditions: |
|
QAPP Information: |
EOA, Inc.. 2016. Creek Status and Pesticides & Toxicity Monitoring Quality Assurance Project. |
QAPP Information Reference(s): |
Creek Status Monitoring Program
Quality Assurance Project Plan |
|