Calleguas Creek Reach 2 (Estuary to Potrero Rd.)

Waterbody ID (WBID): CAR4031200020000228111202
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 / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
AmmoniaNutrients	100562	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Nitrogen (1)	—
ChemAPesticides	68806	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Historic Pesticides (5)	—
ChlordanePesticides	136554	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek PCBs (7)	—
CopperMetals	68384	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Metals (6)	—
DDT (Dichlorodiphenyltrichloroethane)Pesticides	149465	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Historic Pesticides (5)	—
DieldrinPesticides	136559	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Historic Pesticides (5)	—
EndosulfanPesticides	69565	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Historic Pesticides (5)	—
Indicator BacteriaPathogens	68344	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
PCBs (Polychlorinated biphenyls)Toxic Organics	136569	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek PCBs (7)	—
Sedimentation/SiltationSediment	70556	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ToxaphenePesticides	136572	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Historic Pesticides (5)	—
ToxicityTotal Toxics	69566	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Calleguas Creek Historic Pesticides (5)	—
TrashTrash	77088	List on 303(d) list (TMDL required list)	Original	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: CAR4031200020000228111202
CALWNUM: 4408.110000, 4408.120000, 4408.130000
WBD code: 180701030107
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: 4.33 Miles

Derived facility associations

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

Derived

ABF Freight System Inc

Oxnard · No Exposure Certification · 0.56 km away

derived_nearby_in_watershed