Carquinez Strait

Waterbody ID (WBID): CAE2071002019980928134605
County / counties: Contra Costa, Solano
Regional Water Board: Regional Board 2 - San Francisco Bay Region
Waterbody type: Estuary
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (10)

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
ChlordanePesticides	151260	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides	151521	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DieldrinPesticides	151261	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Dioxin compounds (including 2,3,7,8-TCDD)Toxic Organics	151262	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Furan CompoundsToxic Organics	151264	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Invasive SpeciesOther Cause	170607	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
MercuryMetals	145425	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	San Francisco Bay Mercury	—
PCBs (Polychlorinated biphenyls)Toxic Organics	141165	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	San Francisco Bay PCBs	—
PCBs (Polychlorinated biphenyls) (dioxin-like)Toxic Organics	70414	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	San Francisco Bay PCBs	—
SeleniumMetals	141166	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	San Francisco Bay Selenium - North Bay	—

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: CAE2071002019980928134605
CALWNUM: 2206.100000, 2206.500405, 2206.600202, 2207.100000, 2207.210301, 2207.330001, 2207.330002
WBD code: 180500010109, 180500010303, 180500010401, 180500010401, 180500010401, 180500010401, 180500010401, 180500010401, 180500010401, 180500010401, (Total Count: 29)
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: 525.8 Acres

Facilities with an NAL exceedance for a listed pollutant (1)

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

Suisun Bay Reserve Fleet2 48I022609

Mercury · most recent exceedance RY 2018 · association: derived watershed association

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

2112 Management DBA The Junkluggers of Contra Costa and Solano West

Benicia · Notice of Non-Applicability

derived_watershed_association