County page
Oregon County
Oregon County currently shows 0 Superfund sites, 25 imported facility profiles, and 0 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 Oregon County.
The latest loaded TRI year is 2024, with 0 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
King Johns Llc
Violation Identified across 8 of the last 12 quarters in the imported ECHO record.
City of Koshkonong Wwtp
Significant noncompliance across 6 of the last 12 quarters in the imported ECHO record.
Oregon County Pwsd 2-well # 1
Significant noncompliance across 5 of the last 12 quarters in the imported ECHO record.
Couch R 1 School-treatment Well # 2
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Oregon County Pwsd 1-well #1 Aa Highway R#2 Alton Treatment
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Thayer Pws
Violation Identified across 3 of the last 12 quarters in the imported ECHO record.
Alton Pws
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Eleven Point Sand and Gravel
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Ken's Plumbing
Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Walmart #837
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
Indian Creek Materials, Llc - Oregon Cty
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Mfa Oil Bulk Plant - Thayer
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Thayer Quarry
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Thayer Wwtp
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Vonallmen Processing
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Usda Usfs R09 Greer Crossing
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Alton Bank
Under review. Last recorded ECHO inspection: 2021-04-26.
Bi-state
No Violation Identified. Last recorded ECHO inspection: 2022-08-25.
Fraley Hen House
No Violation Identified. Last recorded ECHO inspection: 2022-04-12.
Mcclain Forest Products Llc
No Violation Identified. Last recorded ECHO inspection: 2025-07-11.
| Chemical | Group | Facilities | Total pounds |
|---|
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Missouri
Missouri facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Missouri
Missouri facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Missouri
Missouri facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.