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Waterbody profile

Official Water Board record · 2026 cycle

Malibu Creek

Waterbody ID (WBID)
CAR4042100019990201132825
County / counties
Los Angeles
Regional Water Board
Regional Board 4 - Los Angeles Region
Waterbody type
River & Stream
Condition category
Category 5 — 303(d) listed, TMDL required
Integrated Report cycle
2026

303(d) listings (15)

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
AluminumMetals153887List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Benthic Community EffectsOther Cause151140Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLMalibu Lagoon Benthic Comm. Effects (71)—
CyanideToxic Inorganics137519List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Fish Barriers (Fish Passage)Hydrologic Alteration69985List on 303(d) list (TMDL required list)Original5A — TMDL still required—Low
Indicator BacteriaPathogens150309Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLMalibu Pathogens (47 in part)—
Invasive SpeciesOther Cause76592List on 303(d) list (TMDL required list)Original5A — TMDL still required—Low
Nitrogen, NitrateNutrients149709List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Nutrients (Algae)Nutrients76173List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLMalibu Creek Nutrients (50)—
Oxygen, DissolvedNutrients151901List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Scum/Foam-unnaturalNuisance72507List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLMalibu Creek Nutrients (50)—
Sedimentation/SiltationSediment69986List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLMalibu Lagoon Benthic Comm. Effects (71)—
SeleniumMetals137526Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
SulfatesToxic Inorganics137528Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ToxicityTotal Toxics137532Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
TrashTrash78692List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLMalibu Creek Watershed Trash (63)—

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
CAR4042100019990201132825
CALWNUM
4404.210000, 4404.240000
WBD code
180701040104
Geometry
Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

Location

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

Loading map…
Watershed
—
Assessed size
10.13 Miles

Derived facility associations

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

Derived
Tapia WRF

Calabasas · Notice of Intent · 0.04 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.