Water Body Name: | San Vicente Creek |
Water Body ID: | CAR2022101220010905121128 |
Water Body Type: | River & Stream |
DECISION ID |
18262 |
Region 2 |
San Vicente Creek |
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Pollutant: | Coliform Bacteria |
Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2010) |
Revision Status | Original |
Sources: | Source Unknown |
Expected TMDL Completion Date: | 2019 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | Region 2 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle. |
Regional Board Decision Recommendation: | No new data were assessed for 2012. The Regional Board will update this decision when new data and information become available and are assessed. |
State Board Staff Review of Regional Board Conclusion and Recommendation: | |
State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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LOE ID: | 1770 | ||||
Pollutant: | Coliform Bacteria | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Dissolved | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 38 | ||||
Number of Exceedances: | 38 | ||||
Data and Information Type: | Not Specified | ||||
Data Used to Assess Water Quality: | Thirty-eight samples for total coliform, 22 samples for fecal coliform, and 6 samples for E. coli. E. coli data show 100% violations of the Basin Plan Objectives for total coliform maximum at all beaches in dry-weather months. Basin Plan violated in 3% of samples for total coliform maximum, 100% samples violated for total coliform median, 100% samples violated for fecal coliform geomean and 100% samples violated for fecal coliform (REC-1). Basin Plan objectives violated in 32% of samples for fecal coliform mean, and 23% violated samples for fecal coliform (REC-2) in dry-weather months (SWRCB, 2003). | ||||
Data Reference: | Placeholder reference 2006 303(d) | ||||
SWAMP Data: | Non-SWAMP | ||||
Water Quality Objective/Criterion: | Basin Plan objectives (SFBRWQCB, 1995)
Fecal coliform Log mean <200 MPN/100ml 90th percentile <400 MPN/100ml Total coliform Log mean <240 MPN/100ml 90th percentile >10,000 MPN/100ml |
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Objective/Criterion Reference: | Placeholder reference 2006 303(d) | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | Data was spatially collected. | ||||
Temporal Representation: | Data was collected from 10/6/98-9/26/00. | ||||
Environmental Conditions: | |||||
QAPP Information: | San Mateo County Environmental Health Department. Beach Monitoring, Surfrider data/lab QA/QC used. Data evaluation was based on USEPA guidelines for 305(b) reports, that uses a hierarchy of water quality data levels. Only data of higher overall level of information (Levels 3 and 4) were used to list a water body. | ||||
QAPP Information Reference(s): | |||||