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Waterbody profile

Official Water Board record · 2026 cycle

Ballona Creek Estuary

Waterbody ID (WBID)
CAR4051300019990203132149
County / counties
Los Angeles
Regional Water Board
Regional Board 4 - Los Angeles Region
Waterbody type
River & Stream
Condition category
Category 4a — TMDL completed
Integrated Report cycle
2026

303(d) listings (12)

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
CadmiumMetals138186Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Metals (57)
ChlordanePesticides138187Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
CopperMetals138189Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Metals (57)
DDE (Dichlorodiphenyldichloroethylene)Pesticides149397List on 303(d) list (being addressed by USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
DDT (Dichlorodiphenyltrichloroethane)Pesticides68790List on 303(d) list (being addressed by USEPA approved TMDL)Original5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
Indicator BacteriaPathogens150278Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Coliform (49)
LeadMetals138191Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
PAHs (Polycyclic Aromatic Hydrocarbons)Toxic Organics149398Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
PCBs (Polychlorinated biphenyls)Toxic Organics138194Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
SilverMetals138196Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
ToxicityTotal Toxics74220Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Original5B Addressed by USEPA-approved TMDLBallona Creek Toxics (55)
ZincMetals138198Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B Addressed by USEPA-approved TMDLBallona Creek Metals (57)

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
CAR4051300019990203132149
CALWNUM
40513000
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
2.25 Miles

Facilities with an NAL exceedance for a listed pollutant (1)

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

Boatyard4 19I020189

Lead, Zinc · most recent exceedance RY 2015 · association: derived receiving water

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
Boatyard

Marina Del Rey · Notice of Intent · 0.54 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ONEIL DIGITAL SOLUTIONS

Los Angeles · No Exposure Certification · 0.57 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Southern California Gas Company Playa del Rey

Playa Del Rey · Notice of Intent · 0.88 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Windward Yacht Repair Inc

Marina Del Rey · Notice of Intent · 0.57 km away

derived_receiving_water

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.