County page
Hamilton County
Hamilton County currently shows 0 Superfund sites, 29 imported facility profiles, and 34,461 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 Hamilton County.
The latest loaded TRI year is 2024, with 34,461 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
Van Diest Supply Co
Violation Identified across 6 of the last 12 quarters, with $215,629 in recorded penalties.
Industrial Container Services Llc
Significant Violation across 10 of the last 12 quarters in the imported ECHO record.
Poet Biorefining - Jewell Llc
Violation Identified across 4 of the last 12 quarters in the imported ECHO record.
Jewell City of Stp
Significant noncompliance across 8 of the last 12 quarters in the imported ECHO record.
Webster City Wwtp
Violation Identified across 7 of the last 12 quarters in the imported ECHO record.
Williams Truck Stop
Significant noncompliance across 6 of the last 12 quarters in the imported ECHO record.
Flying J No. 572
Violation Identified across 5 of the last 12 quarters in the imported ECHO record.
Stanhope Wwtp
Significant Violation across 4 of the last 12 quarters in the imported ECHO record.
Community Church of Kamrar
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Jewell Water Supply-plant #1
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Williams Travel Center-plant #2 Motel
Inactive across 4 of the last 12 quarters in the imported ECHO record.
Doolittle Oil Company, Inc
No Violation Identified with $1,500 in recorded penalties.
Agroliquid - Williams
Under review. Last recorded ECHO inspection: 2023-09-14.
Ellsworth Wwtp
Violation Identified across 3 of the last 12 quarters in the imported ECHO record.
Agstate, Llc / Ellsworth
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Super 8
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Webster City Municipal Bldg.
Under review across 2 of the last 12 quarters in the imported ECHO record.
Williams City of Stp
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Ellsworth Public Water Supply-treatment Plant #2
Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Stanhope Water Department-plant #1
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Ammonia | TRI-listed chemical | 2 | 7,272 lbs |
| Atrazine | TRI-listed chemical | 1 | 7,055 lbs |
| n-Hexane | TRI-listed chemical | 1 | 3,648 lbs |
| 2, 4-D 2-ethylhexyl ester | TRI-listed chemical | 1 | 3,604 lbs |
| Dimethylamine | TRI-listed chemical | 1 | 3,207 lbs |
| Pendimethalin | TRI-listed chemical | 1 | 3,033 lbs |
| Acrolein | TRI-listed chemical | 1 | 1,500 lbs |
| Formaldehyde | TRI-listed chemical | 1 | 1,339 lbs |
| Ethylene glycol | TRI-listed chemical | 1 | 1,317 lbs |
| Formic acid | TRI-listed chemical | 1 | 950 lbs |
| Methanol | TRI-listed chemical | 1 | 479 lbs |
| Naphthalene | TRI-listed chemical | 1 | 402 lbs |
| Nonylphenol Ethoxylates | TRI-listed chemical | 1 | 369 lbs |
| Metribuzin | TRI-listed chemical | 1 | 286 lbs |
| Sodium dicamba | TRI-listed chemical | 1 | 1 lbs |
| Benzene | Volatile organic compound | 1 | 0 lbs |
| n-Butyl alcohol | TRI-listed chemical | 1 | 0 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 1 | 0 lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 1 | 0 lbs |
| Ametryn | 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 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.