County page
Humboldt County
Humboldt County currently shows 1 Superfund site, 86 imported facility profiles, and 96,097 lbs in loaded TRI releases.
Overview
What this county page is saying
This live county page is generated from the ingested EPA datasets. It merges ECHO facility compliance rows, TRI release totals, and any Superfund sites attached to Humboldt County.
The latest loaded TRI year is 2024, with 96,097 lbs in county-level on-site releases tied to the imported facility set.
Focus points
Design and product notes
County pages combine facility compliance history with chemical release totals.
TRI chemistry shows what is being reported, while ECHO shows who keeps drawing enforcement attention.
Superfund records add legacy cleanup context even when live contaminant detail is still sparse.
Superfund layer
Cleanup sites in this county
Copper Bluff Mine
Copper Bluff Mine is in EPA's Superfund layer for Hoopa, CA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
City of Arcata Wastewater Treatment Facility
Significant Violation across 12 of the last 12 quarters, with $48,000 in recorded penalties.
Rio Dell Potw
Violation Identified across 12 of the last 12 quarters, with $21,000 in recorded penalties.
Humboldt Creamery Association
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
City of Fortuna - Municipal Wastewater Plant
Significant Violation across 11 of the last 12 quarters, with $15,000 in recorded penalties.
California Redwood Co Korbel Sawmill
Significant noncompliance across 7 of the last 12 quarters, with $21,000 in recorded penalties.
Town of Samoa Wastewater Treatment Facility
Significant noncompliance across 6 of the last 12 quarters, with $54,000 in recorded penalties.
Arcata Scrap and Salvage
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Baker Creek Quarry
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Eel River Scrap and Salvage
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Johns Used Cars Wreckers
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Loleta Wwtf
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
S H U S D Trans Yard
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Scotia Sawmill & Cogeneration Plant
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Humboldt Redwood Company Llc
Significant Violation across 11 of the last 12 quarters in the imported ECHO record.
Fairway Lane Subdivision
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Neal & Wendi Mckenny Mini Storage Phase 1
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Bear River Reservation
Significant noncompliance across 11 of the last 12 quarters in the imported ECHO record.
Cal Fire-high Rock Conservation Camp-well 01 - Treated
Significant Violation across 11 of the last 12 quarters in the imported ECHO record.
Casterlin School-well 01 - Treated
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Hydesville Co. W.d.
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 1 | 70,296 lbs |
| Acetaldehyde | TRI-listed chemical | 1 | 25,402 lbs |
| Ammonia | TRI-listed chemical | 1 | 397 lbs |
| Nitric acid | TRI-listed chemical | 1 | 0 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in California
California facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in California
California facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in California
California facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.