County page
Humboldt County
Humboldt County currently shows 0 Superfund sites, 19 imported facility profiles, and 17,378 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 17,378 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
Facilities
Worst polluters and compliance pressure
Humboldt City of Stp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Livermore Water Supply C/o City Hall
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Bode City of Stp
Significant Violation across 6 of the last 12 quarters in the imported ECHO record.
Thor City of Stp
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Livermore Wwtp
Violation Identified across 3 of the last 12 quarters in the imported ECHO record.
Renwick Stl
Significant noncompliance across 3 of the last 12 quarters in the imported ECHO record.
Precision Tank & Equipment Co
No violation identified
Rutland City of Stp
Violation Identified across 3 of the last 12 quarters in the imported ECHO record.
Humboldt Country Club-plant #1
No Violation Identified across 3 of the last 12 quarters in the imported ECHO record.
Dakota City City of Stp
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Precision Tank, Llc
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Hawkeye Leisure Trailers, Ltd
No Violation Identified. Last recorded ECHO inspection: 2023-06-06.
Jet Company
No Violation Identified. Last recorded ECHO inspection: 2022-12-28.
Precision Pulley and Idler - Humboldt
No Violation Identified. Last recorded ECHO inspection: 2025-12-05.
Adf Systems Ltd
No Violation Identified. Last recorded ECHO inspection: 2023-06-06.
Hy-capacity Eng & Mfg, Inc
No Violation Identified. Last recorded ECHO inspection: 2023-04-14.
City of Humboldt
No Violation Identified. Last recorded ECHO inspection: 2024-12-31.
Hardy Water Supply
No Violation Identified. Last recorded ECHO inspection: 2021-06-15.
Forterra Concrete Products - Humboldt
No violation identified
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Styrene | Volatile organic compound | 1 | 17,377 lbs |
| Lead | Metals and metal compounds | 1 | 0 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Iowa
Iowa facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Iowa
Iowa facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Iowa
Iowa facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.