← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Santa Monica Bay Offshore/Nearshore

Waterbody ID (WBID)
CAB4051300019990921164318
County / counties
Los Angeles
Regional Water Board
Regional Board 4 - Los Angeles Region
Waterbody type
Bay & Harbor
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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
ArsenicMetals135928Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
DDT (Dichlorodiphenyltrichloroethane)Pesticides150529Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLSanta Monica Bay Historic Pesticides (58)
MercuryMetals170880Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
PCBs (Polychlorinated biphenyls)Toxic Organics135944Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLSanta Monica Bay Historic Pesticides (58)
TrashTrash68866List on 303(d) list (being addressed by USEPA approved TMDL)Original5B Addressed by USEPA-approved TMDLSanta Monica Bay Offshore/Nearshore Debris (66)

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
CAB4051300019990921164318
CALWNUM
4404.110000, 4404.110000, 4404.110000, 4404.110000, 4404.110000, 4404.110000, 4404.110000, 4404.110000, 4404.110000, 4404.110000, (Total Count: 381)
WBD code
180701040104, 180701040203, 180701040204, 180701040300, 180701040402, 180701040403, 180701040500
Geometry
Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

Location

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

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Watershed
Assessed size
19854.97 Acres

Derived facility associations

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

Derived
Active Recycling MRF and Transfer Station

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Advance Paper Box Co

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

AF Machine and Tool Company

Inglewood · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Ah Machine Inc

Inglewood · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC DLX9

Culver City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

APIC CORPORATION

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Artex Manufacturing Company

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Bar Nine

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Barry Avenue Plating Company

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Basic Fibers Inc

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Basic Fibers Inc Recycling

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Basic Fibres IncWestern Metals

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Big Blue Bus City of Santa Monica

Santa Monica · Notice of Intent · 0.94 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Blue Diamond Materials Inglewood

Inglewood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Borin Manufacturing Incorporated

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Broadway Drill Site

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

CA Metal Processing Co

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

CA095 West LA US Army Reserve Ctr

West Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Culver City City Refuse Transf

Culver City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Culver City Transportation Facility

Culver City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Don Lee Farms

Inglewood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

El Segundo II LLC South North

El Segundo · Notice of Intent · 0.27 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Extractor Solutions

San Jacinto · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Fed Ex SPQA EMTA

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

FedEx Express CCDA

Inglewood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

First Student Inc 20424

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Florentynas

Inglewood · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Foster Planing Mill Co

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

GEBE Electronic Services Holdings LLC

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

green clean planet recycling

Montebello · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Gulfstream Aerospace

Van Nuys · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Hollywood Ready Mix

West Hollywood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Hyperion WWTP

Playa Del Rey · Notice of Intent · 0.23 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Inglewood Ready Mix

Inglewood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Integrated Magnetics

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

jon Mangiagli

Hermosa Beach · No Exposure Certification · 0.58 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Juma Scrap Metals Inc

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

King Harbor Marine Ctr

Redondo Beach · Notice of Intent · 0.42 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

LA Unified Sch Dist Business S

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Learned Lumber

Hermosa Beach · Notice of Intent · 0.89 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Los Angeles Distillery

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

marco printing signs and banners

Walnut Park · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Marvin Engineering Co Inc

Inglewood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Metro Division 14

Santa Monica · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Metro Division 5

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Metro Division 7

West Hollywood · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

mike fair custom furniture

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

MM Manufacturing

Culver City · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Moraga Vineyards

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

MV Transportation Div 48

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Nova Color Inc

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Ohmega Tech Inc

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Phase Four

Hawthorne · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Plastique Unique Inc

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Promontory Holdings LLC

Culver City · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

PURE Dog Food LLC

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Quake City Casuals Inc

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Rancho Park

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Sawtelle

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Scarrott Metallurigical Company

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Scattergood Generating Station

Playa Del Rey · Notice of Intent · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Signmakers

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Smart Simple Gourmet Inc

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Southern California Gas Company Playa del Rey

Playa Del Rey · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Southwest Plating

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Spongelle LLC

Inglewood · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stutzman Plating Inc

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

University of California Los Angeles

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

University of California Los Angeles

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

UPS Bay CABAY

Los Angeles · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

UPS Olympic CAOLY

Los Angeles · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

water studio inc

Culver City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Wedges Ledges of California Inc

Redondo Beach · No Exposure Certification · 0.79 km away

derived_nearby_in_watershed

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.