Carbon Beach

Waterbody ID (WBID): CAX4041600019990922144015
County / counties: Los Angeles
Regional Water Board: Regional Board 4 - Los Angeles Region
Waterbody type: Coastal & Bay Shoreline
Condition category: Category 4a — TMDL completed
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
DDT (Dichlorodiphenyltrichloroethane)Pesticides	69352	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Santa Monica Bay Historic Pesticides (58)	—
Indicator BacteriaPathogens	77938	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Santa Monica Bay Beach Closures/Coliform/Bacteria Indicators (48)	—
PCBs (Polychlorinated biphenyls)Toxic Organics	71547	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Santa Monica Bay Historic Pesticides (58)	—

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: CAX4041600019990922144015
CALWNUM: 4404.110000, 4404.120000, 4404.130000, 4404.140000, 4404.150000, 4404.160000, 4404.210000, 4404.310000
WBD code: 180701040403
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: 1.47 Miles

Derived facility associations

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

Derived

Boatyard

Marina Del Rey · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Santa Monica Malibu Usd

Santa Monica · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Facility records are official Industrial General Permit registrations, but the association between a facility and this waterbody is derived geographically (proximity or shared HUC12 subwatershed) and is not a Water Board receiving-water determination. Where a permit carries a Water Board-stated TMDL requirement naming this water, it is listed separately above.