← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Oxnard Drain

Waterbody ID (WBID)
CAR4031100020110724175808
County / counties
Ventura
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 (4)

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
Escherichia coli (E. coli)Pathogens100248List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
Nitrogen, NitrateNutrients100055List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
pHOther Cause95001List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
TrashTrash100249List on 303(d) list (being addressed by action other than TMDL)Original5C Addressed by action other than a TMDL

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
CAR4031100020110724175808
CALWNUM
40311000
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
4.05 Miles

Facilities with an NAL exceedance for a listed pollutant (4)

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

Gills Onions Limited Liability Company4 56I027908

pH · most recent exceedance RY 2022 · association: derived receiving water

Haas Automation Sheet Metal4 56I024862

pH · most recent exceedance RY 2016 · association: derived receiving water

Hueneme Sch Dist FOT4 56I017875

pH · most recent exceedance RY 2023 · association: derived receiving water

Oxnard Ready Mix4 56I021860

pH · most recent exceedance RY 2018 · 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
Advanced Structural Technologies

Oxnard · Notice of Intent · 0.23 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Algeb CNC Machining

Oxnard · No Exposure Certification · 0.29 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Alliance Finishing and Manufacturing

Oxnard · No Exposure Certification · 0.69 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Aluminum Precision Prod

Oxnard · Notice of Intent · 0.98 km away

derived_receiving_water

Derived by California Stormwater Intelligence

American Tooth Industries

Oxnard · No Exposure Certification · 0.52 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Anacapa Fresh Logistics

Oxnard · No Exposure Certification · 0.40 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Artisan Bronze

Oxnard · No Exposure Certification · 0.09 km away

derived_receiving_water

Derived by California Stormwater Intelligence

BETA BEAUTY LLC

Oxnard · No Exposure Certification · 0.59 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Bimbo Bakehouse LLC

Oxnard · Notice of Intent · 0.22 km away

derived_receiving_water

Derived by California Stormwater Intelligence

BIRNS Oceanographics Inc

Oxnard · No Exposure Certification · 0.70 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Boskovich Farms Inc

Oxnard · Notice of Intent · 0.55 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cal Sun Produce LLC

Oxnard · Notice of Intent · 0.86 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CALIFORNIA ROTATIONAL PLASTICS

Oxnard · No Exposure Certification · 0.71 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CDTi Advanced Materials Inc

Oxnard · No Exposure Certification · 0.62 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CH Carpenter

Oxnard · No Exposure Certification · 0.79 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Channel Islands Warehouse

Oxnard · No Exposure Certification · 0.17 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CIComposites

Oxnard · No Exposure Certification · 0.80 km away

derived_receiving_water

Derived by California Stormwater Intelligence

City of Oxnard

Oxnard · No Exposure Certification · 0.52 km away

derived_receiving_water

Derived by California Stormwater Intelligence

City of Oxnard

Oxnard · Notice of Intent · 0.92 km away

derived_receiving_water

Derived by California Stormwater Intelligence

City of Oxnard

Oxnard · No Exposure Certification · 0.46 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Coastal Byproducts

Oxnard · No Exposure Certification · 0.15 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ColourPop Cosmetics LLC

Oxnard · No Exposure Certification · 0.57 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ColourPop Cosmetics LLC

Oxnard · No Exposure Certification · 0.57 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ColourPop Cosmetics LLC

Oxnard · No Exposure Certification · 0.58 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ColourPop Cosmetics LLC

Oxnard · No Exposure Certification · 0.52 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cordoba Music Group

Oxnard · No Exposure Certification · 0.37 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CURE Pharmaceutical

Oxnard · No Exposure Certification · 0.60 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Dalex CNC Precision

Oxnard · No Exposure Certification · 0.29 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Del Mar Plastic Inc

Oxnard · Notice of Intent · 0.30 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Dela Cruz Granitz

Oxnard · No Exposure Certification · 0.44 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Diversified Minerals Inc

Oxnard · Notice of Intent · 0.33 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Diversified Panel Systems

Oxnard · Notice of Intent · 0.26 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Ertel Cabinets and Millwork Inc

Oxnard · No Exposure Certification · 0.52 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Fifth Street Auto Salvage

Oxnard · Notice of Intent · 0.79 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Force Fabrication Inc

Oxnard · No Exposure Certification · 0.26 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Galaxy Botanicals LLC

Oxnard · No Exposure Certification · 0.42 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Gills Onions Limited Liability Company

Oxnard · Notice of Intent · 0.43 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Golden State Mold

Port Hueneme · No Exposure Certification · 0.66 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Haas Automation Sheet Metal

Oxnard · Notice of Intent · 0.59 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Halls Culligan Water

Oxnard · No Exposure Certification · 0.76 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Hueneme Sch Dist FOT

Port Hueneme · Notice of Intent · 0.98 km away

derived_receiving_water

Derived by California Stormwater Intelligence

IDP TM

Oxnard · No Exposure Certification · 0.58 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Industrial Tools Incorporated

Oxnard · No Exposure Certification · 0.75 km away

derived_receiving_water

Derived by California Stormwater Intelligence

J AND A WELDING SERVICES INC

Oxnard · No Exposure Certification · 0.56 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Jean Larrivee Guitars USA Inc

Oxnard · No Exposure Certification · 0.12 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Kaiser Air Conditioning & Sheet Metal

Oxnard · No Exposure Certification · 0.78 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Kerr Concentrates

Oxnard · Notice of Intent · 0.92 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Kim Laube & Company

Oxnard · No Exposure Certification · 0.26 km away

derived_receiving_water

Derived by California Stormwater Intelligence

L&G WOODWORK CASE INC

Oxnard · No Exposure Certification · 0.29 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Limons Metal Finishing Inc

Oxnard · No Exposure Certification · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

LionsGate Self Storage

Oxnard · No Exposure Certification · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Meissner Industrial Company Incorporated

Oxnard · No Exposure Certification · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Mountain View Mini Storage

Oxnard · No Exposure Certification · 0.65 km away

derived_receiving_water

Derived by California Stormwater Intelligence

New Indy Oxnard LLC

Oxnard · Notice of Intent · 0.27 km away

derived_receiving_water

Derived by California Stormwater Intelligence

NMS MOVING SYSTEMS INC

Oxnard · No Exposure Certification · 0.14 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Nuvair

Oxnard · No Exposure Certification · 0.50 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Oxnard Ready Mix

Oxnard Beach · Notice of Intent · 0.74 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Pac Foundries

Port Hueneme · Notice of Intent · 0.87 km away

derived_receiving_water

Derived by California Stormwater Intelligence

PCL LLC

Oxnard · No Exposure Certification · 0.66 km away

derived_receiving_water

Derived by California Stormwater Intelligence

perkins machine co

Oxnard · No Exposure Certification · 0.16 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Pinnpack Capital Holdings llc

Oxnard · Notice of Intent · 0.24 km away

derived_receiving_water

Derived by California Stormwater Intelligence

PKP MACHINING INC

Oxnard · No Exposure Certification · 0.81 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Plascene Inc

Oxnard · No Exposure Certification · 0.42 km away

derived_receiving_water

Derived by California Stormwater Intelligence

precision metal works

Oxnard · No Exposure Certification · 0.18 km away

derived_receiving_water

Derived by California Stormwater Intelligence

PRECISION RX ORTHOTIC LAB INC

Oxnard · No Exposure Certification · 0.88 km away

derived_receiving_water

Derived by California Stormwater Intelligence

PRESTIGE PLATING INC

Oxnard · No Exposure Certification · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Progressive Packaging Group

Oxnard · No Exposure Certification · 0.29 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Rakar Incorporated

Oxnard · No Exposure Certification · 0.64 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Reinhold Industries Oxnard

Oxnard · No Exposure Certification · 0.18 km away

derived_receiving_water

Derived by California Stormwater Intelligence

SA Recycling LLC

Oxnard · Notice of Intent · 0.66 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Santa Barbara Greenhouses

Oxnard · No Exposure Certification · 0.54 km away

derived_receiving_water

Derived by California Stormwater Intelligence

SANTOS GRANITE LLC

Oxnard · No Exposure Certification · 0.76 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Seaboard Produce Distributors Inc

Oxnard · No Exposure Certification · 0.71 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Silvas Oil Company Oxnard

Oxnard · Notice of Intent · 0.63 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Simba Cal Inc

Oxnard · No Exposure Certification · 0.72 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Smucker Fruit Processing Co

Oxnard · Notice of Intent · 0.64 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Spatz Laboratories

Oxnard · Notice of Intent · 0.47 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Stainless Process Systems

Oxnard · No Exposure Certification · 0.63 km away

derived_receiving_water

Derived by California Stormwater Intelligence

TForce Freight Oxnard

Oxnard · Notice of Intent · 0.71 km away

derived_receiving_water

Derived by California Stormwater Intelligence

u store it

Oxnard · No Exposure Certification · 0.79 km away

derived_receiving_water

Derived by California Stormwater Intelligence

URS Midwest dba United Road

Oxnard · Notice of Intent · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Valley Spuds

Oxnard · No Exposure Certification · 0.39 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Ventura Cnty Railroad Co Engin

Oxnard · Notice of Intent · 0.59 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Vortech Engineering Inc

Oxnard · No Exposure Certification · 0.36 km away

derived_receiving_water

Derived by California Stormwater Intelligence

zamora woodworks

Oxnard · No Exposure Certification · 0.85 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.