Eureka Plain HU, Humboldt Bay

2026 303(d) list Waterbody ID CAB1100000020020108173626 Bay & Harbor Region 1 · North Coast

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 3 Appendix A decisions; Category 5: a TMDL is required; What a listing means
Pollutants and stressors: 3 pollutants in 1 Appendix A category; Toxic Organics (3); Listing decisions
TMDL information Evidence: State-published: 3 decisions with a TMDL requirement status; Status codes as published: 5A; TMDL details
Regional Water Board: Region 1 · North Coast; Bay & Harbor · Map
Industrial stormwater facilities: 0 report it as their receiving water Evidence: identification corroborated; 104 within 1 km Evidence: geographic proximity; Neither count establishes a discharge · Facilities

What a 303(d) listing means

The Clean Water Act section 303(d) list names waters that do not meet water quality standards for one or more pollutants or stressors. California publishes it in the Integrated Report; this page shows the 2026 decisions from Appendix A as published.

A listing describes the condition of the waterbody. It does not identify which sources cause the impairment, and it does not by itself place a requirement on any particular facility.
Listed waters do not all have the same status. The Integrated Report category says how an impairment is being addressed: 5, a TMDL is required; 4a, addressed by a USEPA-approved TMDL; 4b, addressed by other pollution control requirements; 4c, impairment not caused by a pollutant. This waterbody's decisions are in category 5.
TMDL requirement status values (such as 5A or 5B) are shown exactly as published in Appendix A.

2026 listing status Evidence: State-published

On the 2026 303(d) list: Yes
Appendix A decisions: 3
Integrated Report category: 5 (a TMDL is required)
Listing cycle: 2026
State Board adoption: 2026-02-03 (Resolution 2026-0005)
USEPA approval: not confirmed — submittal letter to USEPA published; no approval found on the report page (checked 2026-10-22)
Regional Water Board: 1 — North Coast

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. A listing describes the condition of this waterbody, not of any facility.

Location

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Open this area on the statewide map · Browse impaired waters

Listing decisions and pollutants Evidence: State-published

Grouped by the Pollutant Category published in Appendix A. Pollutant names, categories and decisions are exactly as published.

Toxic Organics (3 decisions)

Toxic Organics: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Dioxin compounds (including 2,3,7,8-TCDD)	Toxic Organics	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	169592
Dioxin Toxic Equivalents	Toxic Organics	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	70917
PCBs (Polychlorinated biphenyls)	Toxic Organics	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	157037

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Dioxin compounds (including 2,3,7,8-TCDD)	5A	—	Low	—	—
Dioxin Toxic Equivalents	5A	—	Low	—	—
PCBs (Polychlorinated biphenyls)	5A	—	Low	—	—

This is TMDL information for the waterbody. It does not establish that a TMDL applies to any particular facility. Facility-specific TMDL requirements recorded in SMARTS appear on facility pages and are not linked to this waterbody until reviewed.

HUC12 watersheds

Published with the listing Evidence: publisher-reported

Humboldt Bay 180101020605
Tabic Bluff 180101020606

Overlapping the waterbody's shape Evidence: spatial

Humboldt Bay 180101020605 also published
Tabic Bluff 180101020606 also published

Industrial stormwater facilities

Evidence: identification corroborated

Shows: the facility named this waterbody as its receiving water in SMARTS, and the name and the facility's location are consistent with it. Does not establish: a discharge pathway, a discharge of any pollutant, or a cause of the listing.

Evidence: geographic proximity

Shows: the facility's reported location is within 1 km of the waterbody's mapped shape. Does not establish: that the facility discharges to this waterbody, or any other relationship.

Report this waterbody as their receiving water Evidence: identification corroborated

No facility's reported receiving water is identified as this waterbody.

Within 1 km of a facility's reported location Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near this waterbody does not mean a facility discharges to it.

Facilities whose reported location is within 1 km of this waterbody
Facility	WDID	Status	Distance	Map
Woodley Island Marina	1 12I019820	Terminated	0 m	map
Hey Taxi Inc	1 12NNA003599	NONA Submitted	0 m	map
Caito Fisheries Incorperated	1 12I029690	Terminated	6 m	map
Caito Fisheries Eureka	1 12I030201	Active	7 m	map
Chevron Prod Co Eureka Terminal	1 12I009617	Active	43 m	map
Dick Taylor Craft Chocolate	1 12NEC012245	Active	55 m	map
Pacific Shellfish Humboldt LLC	1 12NNA002169	NONA Submitted	72 m	map
United Rentals Branch 257	1 12I015479	Terminated	97 m	map
Johns Used Cars Wreckers	1 12I010173	Terminated	108 m	map
Samoa Chip Export	1 12I016961	Terminated	125 m	map
Samoa Chip Export	1 12I018700	Terminated	125 m	map
Pacific Seafood Eureka	1 12NEC011531	Active	128 m	map
Redwood Coast Trucking	1 12I012653	Active	129 m	map
SLI Eureka Dock	1 12I029247	Active	138 m	map
Eureka Yard	1 12I021934	Terminated	150 m	map
Brainard Remanufacturing Facility	1 12I020569	Active	155 m	map
Schneider Dock Intermodal Facility Inc	1 12I016326	Terminated	168 m	map
Sisu Extracts	1 12NEC010658	Active	186 m	map
Moonstone medicinals	1 12NNA002203	NONA Submitted	187 m	map
Chrondor Mountain LLC	1 12NEC011985	Terminated	188 m	map
Samoa Chip Facility	1 12I023751	Terminated	190 m	map
Fairhaven Chip Facility	1 12I029969	Active	190 m	map
Humboldt Bay Forest Prod	1 12I016032	Terminated	191 m	map
Papa and Barkley	1 12NEC010651	Terminated	197 m	map
L M Renner inc Tosco Bulk PL	1 12I028024	Active	199 m	map
Redwood Marine Terminal 2	1 12NEC011625	Terminated	208 m	map
Rogers Machinery Company Inc	1 12NNA002671	NONA Submitted	208 m	map
Coffee and Culture	1 12NEC012647	Active	208 m	map
Roys club	1 12NNA003348	NONA Submitted	210 m	map
Forbes Cabinets Inc	1 12NEC014047	Active	223 m	map
L M Renner Inc Tosco Bulk Pl	1 12I012190	Terminated	238 m	map
Samoa Log Yard Facility	1 12I029731	Active	247 m	map
Carson Block	1 12NEC010913	Terminated	270 m	map
Papa and Barkley	1 12NEC010650	Terminated	284 m	map
Redwood Curtain Brewing	1 12IN608260	No Action Required	287 m	map
Redwood Curtain Brewing Company LLC	1 12NEC016095	Active	287 m	map
Central Transport	1 12NEC008950	Active	293 m	map
Fairhaven Business Park	1 12I021905	Active	307 m	map
Fox Farm Soil & Fertilizer Comp	1 12I021993	Terminated	307 m	map
Forbes Cabinets Incorporated	1 12NEC012856	Terminated	314 m	map
Redwood Marine Terminal II	1 12I025990	Active	317 m	map
Hambro Arcata	1 12I029703	Active	331 m	map
PGE Humboldt Bay Generating Station	1 12I022722	Active	336 m	map
Blue Ox Millworks	1 12NEC013780	Active	347 m	map
Customer Truck Service	1 12I017135	Terminated	371 m	map
Environmental Tech	1 12I002987	Terminated	374 m	map
REACH 000 - Eureka	1 12NNA001653	NONA Submitted	374 m	map
DG Fairhaven Power LLC	1 12I019801	Terminated	375 m	map
Cal-Ore Life Flight, LLC	1 12NNA003128	NONA Submitted	375 m	map
ARCATA SCRAP AND SALVAGE INC	1 12I028461	Active	377 m	map

104 facilities, nearest first. Page 1 of 3: next

Sources and provenance

Sources behind this page
Information	Source	Retrieved
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)	USGS	2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)	SWRCB	2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)	SWRCB GIS	2026-10-22
SMARTS TMDL requirements	SMARTS	2026-10-21

Relationships computed 2026-10-22 (facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1).

Integrated Report categories: 5, a TMDL is required; 4a, addressed by a USEPA-approved TMDL; 4b, addressed by other pollution control requirements; 4c, impairment not caused by a pollutant.