San Vicente Reservoir

Waterbody ID (WBID): CAL9072100020011025093029
County / counties: San Diego
Regional Water Board: Regional Board 9 - San Diego Region
Waterbody type: Lake & Reservoir
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (5)

Each row is one official listing decision from Appendix A of the Final 2026 California Integrated Report. Source terminology is preserved as published.

Pollutant / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
ChlorideSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	76106	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ColorNuisance	76463	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
NitrogenNutrients	100172	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
pHOther Cause	100218	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
SulfatesToxic Inorganics	78534	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low

Source & provenance

Agency: California State Water Resources Control Board
Report: Final 2026 California Integrated Report
Dataset: Appendix A — 2026 303(d) List of Impaired Waters
Imported: Sep 16, 2026, 10:57 PM UTC
Waterbody ID: CAL9072100020011025093029
CALWNUM: 4907.21
WBD code: 180703040601, 180703040602, 180703040603
Geometry: Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

View official Water Board fact sheet ↗Download Appendix A source file ↗

Location

Official 2026 Water Board geometry. Demonstration facility markers are shown for context only.

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Watershed: —
Assessed size: 1087.51 Acres

Facilities with an NAL exceedance for a listed pollutant (2)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

Atlas Pumping Service9 37I023701

pH · most recent exceedance RY 2019 · association: derived watershed association

Hanson Aggregates Pacific Southwest SHC9 37I017278

pH · most recent exceedance RY 2019 · association: derived watershed association

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

Industrial stormwater facilities geographically associated with this waterbody. These are derived spatial associations, not Water Board findings.

Derived

Atlas Pumping Service

Lakeside · Notice of Intent

derived_watershed_association