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
Arcata Scrap Salvage	1 12I021834	Terminated	387 m	map
Redwood Marine Terminal II	1 12NEC011457	Active	416 m	map
Muddy Waters Coffee Co Inc	1 12NEC013626	Active	423 m	map
Hilfiker Pipe Co	1 12I010621	Active	423 m	map
Eureka Times-Standard	1 12NNA002167	NONA Submitted	437 m	map
Murry Field	1 12I000356	Active	440 m	map
Lost Coast Signs & Swag	1 12NNA002192	NONA Submitted	443 m	map
Samoa Facility	1 12I020584	Terminated	451 m	map
Shred Aware LLC	1 12NEC011092	Active	468 m	map
Bio Waste Resources	1 12NEC011093	Active	468 m	map
Essence of Humboldt llc	1 12NNA002138	NONA Submitted	471 m	map
Hawthorne Street Transfer Station	1 12I016073	Active	471 m	map
Papa and Barkley	1 12NEC010648	Terminated	473 m	map
Sherlock Mini Storage	1 12NEC010535	Active	479 m	map
Scorch Marker	1 12NEC014507	Active	482 m	map
Six Rivers Towing & Autobody	1 12I015564	Terminated	491 m	map
Recology Humboldt County	1 12I002450	Active	496 m	map
ApoGe	1 12NEC011201	Terminated	497 m	map
UPS Eureka CAEUR	1 12I002074	Terminated	502 m	map
UPS Eureka CAEUR	1 12NEC011745	Active	502 m	map
HUMBOLDT BAY HARBOR DISTRICT	1 12I019819	Active	509 m	map
Hensell Materials Inc	1 12I010469	Terminated	516 m	map
Samoa Waste Recovery Facility	1 12NEC001032	Terminated	518 m	map
Tasty Hub	1 12NEC014614	Active	527 m	map
Eureka Rubber Stamp Company	1 12NEC011928	Terminated	533 m	map
Kable, Philip	1 12I014229	Terminated	539 m	map
Table Bluff Landfill Inert Cell Waste Disposal Site	1 12I018595	Terminated	543 m	map
Pacific Crest Granite	1 12NEC010961	Terminated	563 m	map
PACIFIC CREST GRANITE INC	1 12NEC011477	Active	563 m	map
Recology Samoa	1 12NEC003535	Active	567 m	map
Custom Crab Pots	1 12NEC010821	Active	575 m	map
Arcata Garbage Co	1 12I006640	Terminated	588 m	map
AMR Eureka	1 12NNA000692	NONA Submitted	593 m	map
City Ambulance of Eureka LLC	1 12NNA002055	NONA Submitted	593 m	map
Eureka Auto Wholesale	1 12I030335	Terminated	606 m	map
Humboldt Craft Spirits LLC	1 12NEC011913	Terminated	611 m	map
Humboldt Craft Spirits	1 12NEC010521	Terminated	630 m	map
Spacegem TTF	1 12NNA002340	NONA Submitted	631 m	map
Recology Arcata	1 12I026993	Active	637 m	map
Lost Coast Brewery	1 12NEC000824	Terminated	656 m	map
Table Bluff Brewing Inc dba Lost Coast Brewery	1 12I029367	Active	658 m	map
Table Bluff Brewing Inc dba Lost Coast Brewery	1 12NEC005625	Terminated	658 m	map
Humboldt Grain Girls	1 12NEC010291	Active	674 m	map
Papa and Barkley	1 12NEC010649	Terminated	706 m	map
SIERRA PACIFIC IND ARCATA DIV	1 12I000440	Terminated	708 m	map
Eureka City Schools Corp Yard	1 12I007011	Active	791 m	map
Jimenez Glass Studios	1 12NEC015852	Active	795 m	map
Humboldt Moving & Storage	1 12NNA002092	NONA Submitted	838 m	map
BCI Coca Cola Bottling Company of LA	1 12I006462	Terminated	858 m	map
Reyes Coca Cola Bottling LLC	1 12I027441	Active	858 m	map

104 facilities, nearest first. Page 2 of 3: previous 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.