California Stormwater Intelligence
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Waterbody profile

Official Water Board record · 2026 cycle

Bull Creek (Los Angeles County)

Waterbody ID (WBID)
CAR4052100020110724133601
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 (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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
CopperMetals139718List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Indicator BacteriaPathogens150280List on 303(d) list (being addressed by USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLLos Angeles River Pathogens (15)—
ToxicityTotal Toxics98863List on 303(d) list (TMDL required list)Original5A — 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
CAR4052100020110724133601
CALWNUM
40521000
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
6.56 Miles

Derived facility associations

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

Derived
All Town Transport Inc

Van Nuys · No Exposure Certification · 0.59 km away

derived_receiving_water

Derived by California Stormwater Intelligence

American Professional Ambulance

Van Nuys · No Exposure Certification · 0.53 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Capstone Turbine Corp

Van Nuys · Notice of Intent · 0.02 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cellador Ales

North Hills · No Exposure Certification · 0.09 km away

derived_receiving_water

Derived by California Stormwater Intelligence

FedEx VNYA

North Hills · No Exposure Certification · 0.33 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Harman Speaker Manufacturing

Northridge · Notice of Intent · 0.15 km away

derived_receiving_water

Derived by California Stormwater Intelligence

MV Transportation Div 45

Van Nuys · Notice of Intent · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Van Nuys Airport

Van Nuys · Notice of Intent · 0.44 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.