California Stormwater Intelligence

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Waterbody profile

Official Water Board record · 2026 cycle

Long Canyon (Ventura County)

Waterbody ID (WBID): CAR4036200020110909164325
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 (7)

Each row is one official listing decision from Appendix A of the Final 2026 California Integrated Report. Source terminology is preserved as published.

Pollutant / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
BifenthrinPesticides	139588	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ChlordanePesticides	139564	List on 303(d) list (being addressed by USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek PCBs (7)	—
ChlorpyrifosPesticides	139566	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	Calleguas Creek Toxicity (2)	Low
CypermethrinPesticides	139589	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides	149632	List on 303(d) list (being addressed by USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek PCBs (7)	—
FenpropathrinPesticides	139600	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
PyrethroidsPesticides	139587	List on 303(d) list (TMDL required list)	Revised	5A — 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: Sep 16, 2026, 10:57 PM UTC
Waterbody ID: CAR4036200020110909164325
CALWNUM: 4408.22
WBD code: 180701030103
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: 6.6 Miles

Derived facility associations

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

Derived

Alchemy Foods LLC

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

All Terrain Concepts

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Allan B Byrne dba Sir Speedy Printing 0310

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

American Machine & Hydraulics

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Applied Wireless Inc

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Automated Applications Inc

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Banks & Baugher LLC

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Benchmark Electronics

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Ciao Wireless Inc

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Dynamic Loop Inc

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Enegren Brewing

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Fence Factory Moorpark

Moorpark · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Ferrari Fabrication

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Gabbert Building

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Camarillo · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Golden Water Inc

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Gooch and Housego

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Infab Corporation

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Lifetech Resources LLC

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

MARTRONIC ENGINEERING INCORPORATED

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Meissner Filtration Bldg 1

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark Unified School District

Moorpark · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Nabor Wines LLC

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

National Coatings

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

National Ready Mixed Concrete

Moorpark · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Negative Supply LLC

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

OPTO DIODE CORP

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

OSI Optoelectronics

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

PDQ Engineering

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Pentair Water Pool and Spa

Moorpark · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Performance Materials Corporation

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Polyfet RF Devices

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Quantum Systems Inc

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

R & E Enterprise LLC

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Rache Corporation

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Rache Corporation

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

S G Daley Mfg Co

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

San Val Precision Inc

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Signum Systems Corp

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Ultron systems inc

Moorpark · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

United Fabrication

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

United Property Services Inc

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Wayne J Sand & Gravel

Moorpark · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Weapons Grade Fabrication

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moorpark · No Exposure Certification

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.