California Stormwater Intelligence
← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Calleguas Creek Reach 5 (Beardsley Channel)

Waterbody ID (WBID)
CAR4036100019990202141016
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 (13)

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
ChemA (tissue)Pesticides74382List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Historic Pesticides (5)—
Chlordane (tissue & sediment)Pesticides69969List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Historic Pesticides (5)—
Chlorpyrifos (tissue)Pesticides70735List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Toxicity (2)—
DDT (tissue & sediment)Pesticides70592List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Historic Pesticides (5)—
DiazinonPesticides69317List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Toxicity (2)—
Dieldrin (tissue)Pesticides70492List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Historic Pesticides (5)—
Endosulfan (tissue & sediment)Pesticides78575List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Historic Pesticides (5)—
NitrogenNutrients69850List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Nitrogen (1)—
PCBs (Polychlorinated biphenyls) (tissue)Toxic Organics70102List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek PCBs (7)—
Sedimentation/SiltationSediment69697List on 303(d) list (TMDL required list)Original5A — TMDL still required—Low
Toxaphene (tissue & sediment)Pesticides70190List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Historic Pesticides (5)—
ToxicityTotal Toxics77561List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Toxicity (2)—
TrashTrash69767List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLCalleguas Creek Trash (9)—

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
CAR4036100019990202141016
CALWNUM
4408.110000, 4408.210000
WBD code
180701030106
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.

Loading map…
Watershed
—
Assessed size
3.46 Miles

Derived facility associations

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

Derived
Abel Automatics

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Camarillo Machine Company

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Cantara Cellars

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Clean Harbors

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Dark Water Boards by Doug McComsey Inc

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Eaton Interconnect

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Fastsigns 69601

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Ferrari Fabrication

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

InSpec Machining LLC

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

J & L Machining & Welding Inc

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

KnE Guitars

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

The Siros Group

Camarillo · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

YOUBITE

Camarillo · 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.