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Waterbody profile

Official Water Board record · 2026 cycle

Ventura River Estuary

Waterbody ID (WBID)
CAR4021001119990204110204
County / counties
Ventura
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 (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
AlgaeNutrients70376List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLVentura River Algae/Nutrients (88)—
EutrophicNutrients70126List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLVentura River Algae/Nutrients (88)—
TrashTrash75387List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLVentura River Estuary Trash (91)—

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
CAR4021001119990204110204
CALWNUM
4402.100001
WBD code
180701010106
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
3.78 Miles

Derived facility associations

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

Derived
Axis Foam

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

C&J Well Services LLC

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

casa del sol ironworks

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Certex USA Inc

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Channel Islands Distillery

Ventura · No Exposure Certification · 0.69 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Dairy Farmers America

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Fairchild Freight LLC

Ventura · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Interstate Rebar Inc

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

MAXIM DOUGLAS

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

NTT Equipment Repair

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

OST Truck and Cranes

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pacific Stoneworks Inc

Ventura · Notice of Intent · 0.60 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

PK Engineering

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Production Tool Specialties

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

R R Pumping Unit Repair Service

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

ReadyRefresh Ventura

Ventura · Notice of Intent · 0.70 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Riviera Bronze Manufacturing

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Roklin Systems Inc

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

RSB Stoneworks Incorporated

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Sine Qua Non

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Solimar Coatings

Ventura · Notice of Intent · 0.94 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Sunbelt Rentals PC 763

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

T&T Truck and Crane Ventura

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Trico Welding Inc

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Ventura Spirits

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Ventura Yard

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Villa Custom Woodworking

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Virdi Power Inc

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Vista Steel

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

VUSD Transportation Facility

Ventura · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Westco International Consulting Inc

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Westco International Consulting Inc

Ventura · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Wl Rubottom Co Inc

Ventura · 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.