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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 requiredLow
DDT (Dichlorodiphenyltrichloroethane)Pesticides151529Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
DieldrinPesticides140814Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
Dioxin compounds (including 2,3,7,8-TCDD)Toxic Organics151204Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
Furan CompoundsToxic Organics151206Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
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 requiredLow
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
Aug 21, 2026, 12:44 AM 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.