Switzer Creek

Waterbody ID (WBID): CAR9082200020080825092534
County / counties: San Diego
Regional Water Board: Regional Board 9 - San Diego Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (3)

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
CopperMetals	76190	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
LeadMetals	76527	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ZincMetals	76706	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: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR9082200020080825092534
CALWNUM: 4908.220000, 4908.220000
WBD code: 180703041202, 180703041202
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.

Loading map…

Watershed: —
Assessed size: 2.61 Miles

Facilities with an NAL exceedance for a listed pollutant (5)

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

BAE Systems San Diego Ship Repair9 37I015255

Copper, Zinc · most recent exceedance RY 2018 · association: derived watershed association

BNSF Railway San Diego9 37I012999

Copper, Zinc · most recent exceedance RY 2025 · association: derived nearby in watershed

New Leaf Biofuel South9 37I028862

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

Pacific Maritime Group9 37I026915

Zinc · most recent exceedance RY 2019 · association: derived nearby in watershed

San Diego Trolley Maint Fac9 37I001557

Copper, Zinc · most recent exceedance RY 2025 · association: derived nearby in watershed

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

BAE Systems San Diego Ship Repair

San Diego · Notice of Intent

derived_watershed_association