California Stormwater Intelligence

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Waterbody profile

Official Water Board record · 2026 cycle

Eureka Plain HU, Humboldt Bay

Waterbody ID (WBID): CAB1100000020020108173626
County / counties: Humboldt
Regional Water Board: Regional Board 1 - North Coast Region
Waterbody type: Bay & Harbor
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (3)

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
Dioxin compounds (including 2,3,7,8-TCDD)Toxic Organics	169592	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Dioxin Toxic EquivalentsToxic Organics	70917	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
PCBs (Polychlorinated biphenyls)Toxic Organics	157037	Do Not Delist from 303(d) list (TMDL required list)	Revised	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, 10:56 PM UTC
Waterbody ID: CAB1100000020020108173626
CALWNUM: 1110.000105, 1110.000106, 1110.000107, 1110.000401, 1110.000402, 1110.000502, 1110.000503, 1110.000601, 1110.000602, 1110.000603, (Total Count: 11)
WBD code: 180101020605, 180101020606
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: 16075.08 Acres

Derived facility associations

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

Derived

Alves Incorporated

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Eureka · Notice of Non-Applicability · 0.59 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka · No Exposure Certification · 0.49 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Arcata Forest Products

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

ARCATA SCRAP AND SALVAGE INC

Arcata · Notice of Intent · 0.38 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Bettendorf Enterprises

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

BETTENDORF ENTERPRISES INC

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Bio Waste Resources

Eureka · No Exposure Certification · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Brainard Remanufacturing Facility

Eureka · Notice of Intent · 0.16 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

C K Johnson Industries

Arcata · Notice of Non-Applicability · 0.92 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Caito Fisheries Eureka

Eureka · Notice of Intent · 0.01 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Caito Fisheries Incorperated

Eureka · Notice of Intent · 0.01 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Callie Maple Collection

Eureka · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Eureka · No Exposure Certification · 0.26 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Central Transport

Eureka · No Exposure Certification · 0.30 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Chevron Prod Co Eureka Termina

Eureka · Notice of Intent · 0.04 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Chrondor Mountain LLC

Eureka · No Exposure Certification · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

City Ambulance of Eureka LLC

Eureka · Notice of Non-Applicability · 0.59 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Custom Crab Pots

Eureka · No Exposure Certification · 0.57 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Cypress Grove Chevre

Arcata · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Dick Taylor Craft Chocolate

Eureka · No Exposure Certification · 0.06 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Essence of Humboldt llc

Eureka · Notice of Non-Applicability · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka City Schools Corp Yard

Eureka · Notice of Intent · 0.79 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka Rubber Stamp Company

Eureka · No Exposure Certification · 0.53 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka Times-Standard

Eureka · Notice of Non-Applicability · 0.43 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Fairhaven Business Park

Fairhaven · Notice of Intent · 0.31 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Fairhaven Chip Facility

Fairhaven · Notice of Intent · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

FedEx Freight Arcata

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Arcilla · Notice of Intent · 0.33 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Hawthorne Street Transfer Station

Eureka · Notice of Intent · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Hilfiker Pipe Co

Eureka · Notice of Intent · 0.43 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

HUMBOLDT BAY HARBOR DISTRICT

Fields Landing · Notice of Intent · 0.51 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Humboldt Craft Spirits LLC

Eureka · No Exposure Certification · 0.61 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Humboldt Grain Girls

Arcata · No Exposure Certification · 0.67 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Humboldt Grain Girls

Arcata · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Humboldt Moving & Storage

Eureka · Notice of Non-Applicability · 0.84 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Humboldt Transit Authority

Eureka · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Jitter Bean Coffee Co

Eureka · No Exposure Certification · 0.94 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Johns Used Cars & Wreckers

Eureka · Notice of Intent · 0.11 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Arcata · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

L M Renner inc Tosco Bulk PL

Eureka · Notice of Intent · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Lost Coast Signs & Swag

Eureka · Notice of Non-Applicability · 0.44 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Mad RIver Lumber LLC

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Marimba One Inc

Arcata · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moonstone medicinals

Eureka · Notice of Non-Applicability · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka · Notice of Intent · 0.44 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

PACIFIC CREST GRANITE INC

Eureka · No Exposure Certification · 0.56 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pacific Seafood Eureka

Eureka · No Exposure Certification · 0.13 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pacific Shellfish Humboldt LLC

Eureka · Notice of Non-Applicability · 0.06 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Papa and Barkley

Eureka · No Exposure Certification · 0.29 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Papa and Barkley

Eureka · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Papa and Barkley

Eureka · No Exposure Certification · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Papa and Barkley

Eureka · No Exposure Certification · 0.71 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

PGE Humboldt Bay Generating Station

Eureka · Notice of Intent · 0.34 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Private Residence

Eureka · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Arcata · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

REACH 000 - Eureka

Eureka · Notice of Non-Applicability · 0.37 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Recology Arcata

Arcata · Notice of Intent · 0.64 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Recology Humboldt County

Eureka · Notice of Intent · 0.49 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Samoa · No Exposure Certification · 0.57 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Redwood Coast Trucking

Arcata · Notice of Intent · 0.14 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Redwood Marine Terminal 2

Eureka · No Exposure Certification · 0.21 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Redwood Marine Terminal II

Samoa · No Exposure Certification · 0.42 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Redwood Marine Terminal II

Eureka · Notice of Intent · 0.32 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Reyes Coca Cola Bottling LLC

Eureka · Notice of Intent · 0.86 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Samoa Log Yard Facility

Samoa · Notice of Intent · 0.25 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Schmidbauer Lumber Inc

Eureka · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Sherlock Mini Storage

Eureka · No Exposure Certification · 0.48 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Shred Aware LLC

Eureka · No Exposure Certification · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka · No Exposure Certification · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

SLI Eureka Dock

Eureka · Notice of Intent · 0.14 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eureka · Notice of Non-Applicability · 0.64 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Table Bluff Brewing Inc dba Lost Coast Brewery

Eureka · Notice of Intent · 0.66 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

UPS Eureka CAEUR

Eureka · No Exposure Certification · 0.50 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

VPPS Arcata Cardlock

Arcata · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Wildwood Manufacturing

Arcata · No Exposure Certification · 0.93 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Wing Inflatables

Arcata · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Wrangletown Cider Company

Arcata · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Zabel Enterprise LLC

Eureka · Notice of Intent

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.