Eel River HU, Lower Eel River HA (includes the Eel River Delta)

Waterbody ID (WBID): CAR1111103219980709182643
County / counties: Humboldt
Regional Water Board: Regional Board 1 - North Coast Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (5)

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
AluminumMetals	168387	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Oxygen, DissolvedNutrients	155284	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
SedimentSediment	168389	List on 303(d) list (being addressed by USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Eel River, Lower Mainstem Sediment & Temperature TMDLs	—
Sedimentation/SiltationSediment	68049	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Eel River, Lower Mainstem Sediment & Temperature TMDLs	—
Temperature, waterOther Cause	155286	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Eel River, Lower Mainstem Sediment & Temperature TMDLs	—

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: CAR1111103219980709182643
CALWNUM: 1111.110101, 1111.110102, 1111.110103, 1111.110201, 1111.110202, 1111.110203, 1111.110301, 1111.110302, 1111.110303, 1111.120101, (Total Count: 20)
WBD code: 180101050303, 180101050502, 180101050601, 180101050602, 180101050906, 180101051001, 180101051002, 180101051003, 180101051101, 180101051102
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: 1117.35 Miles

Facilities with an NAL exceedance for a listed pollutant (4)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

Customer Truck Service1 12I027098

Aluminum · most recent exceedance RY 2019 · association: derived nearby in watershed

Eel River Scrap and Salvage1 12I017276

Aluminum · most recent exceedance RY 2025 · association: derived nearby in watershed

Recology Eel River1 12I027323

Aluminum · most recent exceedance RY 2020 · association: derived nearby in watershed

Scotia Sawmill & Cogeneration Plant1 12I027974

Aluminum · most recent exceedance RY 2025 · association: derived nearby in watershed

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

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

Derived

Asbury Environmental Services Fortuna

Fortuna · Notice of Intent · 0.03 km away

derived_nearby_in_watershed