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Waterbody profile

Official Water Board record · 2026 cycle

Richardson Bay

Waterbody ID (WBID)
CAB2031201019980929120559
County / counties
Marin
Regional Water Board
Regional Board 2 - San Francisco Bay Region
Waterbody type
Bay & Harbor
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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
ChlordanePesticides151203Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides151529Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
DieldrinPesticides140814Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Dioxin compounds (including 2,3,7,8-TCDD)Toxic Organics151204Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Furan CompoundsToxic Organics151206Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Indicator BacteriaPathogens148680Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLRichardson Bay Pathogens—
Invasive SpeciesOther Cause170589Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
MercuryMetals145497Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLSan Francisco Bay Mercury—
PCBs (Polychlorinated biphenyls)Toxic Organics140819Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLSan Francisco Bay PCBs—
PCBs (Polychlorinated biphenyls) (dioxin-like)Toxic Organics69186List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLSan Francisco Bay PCBs—

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, 10:56 PM UTC
Waterbody ID
CAB2031201019980929120559
CALWNUM
2203.100000, 2203.200201, 2203.200202
WBD code
180500020903, 180500021001, 180500021002
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
3854.77 Acres

Derived facility associations

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

Derived
Adobe lumber Inc

Richmond · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Base Yard

Sausalito · Notice of Intent · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Bayside Boatworks Inc

Sausalito · Notice of Intent · 0.30 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Berkeley Asphalt

Berkeley · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Berkeley Forge Tool Inc

Berkeley · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Berkeley Hornblower Cruises & Events

Berkeley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Blue Gold Fleet LP

San Francisco · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Blue Water Yacht Harbor LLC

Sausalito · No Exposure Certification · 0.02 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

BNSF Oakland International Gateway

Oakland · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

California Waste Solutions

Oakland · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Eagle Rock Aggregates INC

Richmond · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

General Petroleum Corp

San Francisco · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Heath Ceramics Inc

Sausalito · Notice of Intent · 0.23 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Hi Tide Boat Sales & Service

San Rafael · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Kendric Vineyards LLC

San Francisco · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

KKMI Sausalito LLC

Sausalito · Notice of Intent · 0.21 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Levin Richmond Terminal Corp

Richmond · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Marin Access

San Rafael · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

OMNIRAX FURNITURE COMPANY

Sausalito · No Exposure Certification · 0.26 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

SAN RAFAEL YACHT HARBOR

San Rafael · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Spaulding Wooden Boat Center

Sausalito · Notice of Intent · 0.18 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

The Canvas Works LLC

Sausalito · No Exposure Certification · 0.00 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Tideline Marine Group

Sausalito · Notice of Non-Applicability · 0.28 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Tideline Marine Group

Sausalito · Notice of Non-Applicability · 0.28 km away

derived_nearby_in_watershed

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.