County page
Obrien County
Obrien County currently shows 0 Superfund sites, 22 imported facility profiles, and 296,747 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 Obrien County.
The latest loaded TRI year is 2024, with 296,747 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
Sheldon Wastewater Plant
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Sanborn Wwtp
Significant Violation across 11 of the last 12 quarters in the imported ECHO record.
Associated Milk Producers, Inc. - Sanborn
Significant Violation across 9 of the last 12 quarters in the imported ECHO record.
Sutherland Stl
Violation Identified across 6 of the last 12 quarters in the imported ECHO record.
Agp-sheldon
No Violation Identified. Last recorded ECHO inspection: 2024-08-21.
Rosenboon Machine & Tool Inc
No Violation Identified with $8,750 in recorded penalties.
Valero Renewable Fuels Co, Llc - Hartley
No Violation Identified. Last recorded ECHO inspection: 2025-09-25.
Sutherland Water Supply-plant #1
Violation Identified across 4 of the last 12 quarters in the imported ECHO record.
Primghar Municipal Light Plant
Significant Violation across 3 of the last 12 quarters in the imported ECHO record.
Archer City of Stp
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Paullina Stl
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Associated Milk Producers Inc
No Violation Identified. Last recorded ECHO inspection: 2011-06-17.
Hartley Wwtp
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Primghar Municipal Water Supply-plant #2
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Maintainer Corporation of Iowa
No Violation Identified. Last recorded ECHO inspection: 2024-05-07.
Northern Natural Gas Co
No Violation Identified. Last recorded ECHO inspection: 2023-02-07.
Brent Rieck Feedlot
No Violation Identified. Last recorded ECHO inspection: 2024-11-21.
City View Farms East
No Violation Identified. Last recorded ECHO inspection: 2024-05-07.
Ocrws South Water Treatment Plant
No Violation Identified. Last recorded ECHO inspection: 2021-09-15.
Ritter Cattle Company
No Violation Identified. Last recorded ECHO inspection: 2023-06-22.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| n-Hexane | TRI-listed chemical | 2 | 277,421 lbs |
| Acetaldehyde | TRI-listed chemical | 1 | 10,081 lbs |
| Acrolein | TRI-listed chemical | 1 | 4,956 lbs |
| Formic acid | TRI-listed chemical | 1 | 1,788 lbs |
| Methanol | TRI-listed chemical | 1 | 1,687 lbs |
| Formaldehyde | TRI-listed chemical | 1 | 729 lbs |
| Cyclohexane | TRI-listed chemical | 1 | 29 lbs |
| Toluene | Volatile organic compound | 1 | 29 lbs |
| Benzene | Volatile organic compound | 1 | 22 lbs |
| Nitric acid | TRI-listed chemical | 1 | 5 lbs |
| Manganese | TRI-listed chemical | 1 | 0 lbs |
| Cobalt compounds | TRI-listed chemical | 1 | 0 lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 1 | 0 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.