County page
Mahaska County
Mahaska County currently shows 0 Superfund sites, 25 imported facility profiles, and 489 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 Mahaska County.
The latest loaded TRI year is 2024, with 489 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
Oskaloosa Ne Wwtp
Significant Violation across 9 of the last 12 quarters, with $3,000 in recorded penalties.
Oskaloosa Sw Stp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
New Sharon City of Stp
Violation Identified across 8 of the last 12 quarters in the imported ECHO record.
Rose Hill City of Stp
Significant noncompliance across 7 of the last 12 quarters in the imported ECHO record.
Clow Valve Company - Machine Shop
No Violation Identified across 1 of the last 12 quarters, with $10,000 in recorded penalties.
Beacon City of Stp
Significant Violation across 5 of the last 12 quarters in the imported ECHO record.
City of Oskaloosa
No Violation Identified across 1 of the last 12 quarters, with $3,000 in recorded penalties.
University Park City of Stp
Significant noncompliance across 3 of the last 12 quarters in the imported ECHO record.
Clow Valve Co - Foundry
No Violation Identified. Last recorded ECHO inspection: 2025-03-06.
Ideal Ready Mix Co Inc - Oskaloosa
No Violation Identified
Lynndana Sewer District
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Oskaloosa Municipal Water Dept
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Mahaska Rural Water (new Sharon)
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Iowa Wood Preservers Inc
No Violation Identified. Last recorded ECHO inspection: 2006-09-06.
Kelderman Manufacturing
No Violation Identified. Last recorded ECHO inspection: 2024-05-15.
Augustine & Sons, Inc.
No Violation Identified. Last recorded ECHO inspection: 2024-06-18.
Barnes City, City of Stp
No Violation Identified. Last recorded ECHO inspection: 2024-01-18.
Clow Valve Co
No Violation Identified. Last recorded ECHO inspection: 2023-10-17.
Dfs Oskaloosa Llc - 2905 S 33rd
No Violation Identified. Last recorded ECHO inspection: 2022-11-18.
Fremont City of Stp
No Violation Identified. Last recorded ECHO inspection: 2023-06-21.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Lead | Metals and metal compounds | 2 | 265 lbs |
| Copper | TRI-listed chemical | 2 | 171 lbs |
| Manganese | TRI-listed chemical | 2 | 41 lbs |
| Lead compounds | Metals and metal compounds | 2 | 8 lbs |
| Nickel | Metals and metal compounds | 2 | 1 lbs |
| Chromium | Metals and metal compounds | 2 | 1 lbs |
| Copper compounds | TRI-listed chemical | 1 | 0 lbs |
| Trifluralin | TRI-listed chemical | 1 | 0 lbs |
| Arsenic compounds | TRI-listed chemical | 1 | 0 lbs |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 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.