County page
Stephenson County
Stephenson County currently shows 0 Superfund sites, 50 imported facility profiles, and 80,523 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 Stephenson County.
The latest loaded TRI year is 2024, with 80,523 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
Modern Plating Corp
Violation across 11 of the last 12 quarters in the imported ECHO record.
Conmat- Loberg Quarry
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Dwyer Quarry
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Freeport Wwtp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Madison County Sand Llc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Dakota Stp, Village of
Violation Identified across 6 of the last 12 quarters, with $3,075 in recorded penalties.
Titan Tire Manufacturing Plant
Violation Identified across 8 of the last 12 quarters in the imported ECHO record.
River Road Mobile Home Park Stp
Significant Violation across 11 of the last 12 quarters in the imported ECHO record.
Pearl City
Violation Identified across 10 of the last 12 quarters in the imported ECHO record.
Winslow
Significant Violation across 9 of the last 12 quarters in the imported ECHO record.
Cedarville - Stp, Village of
Significant noncompliance across 8 of the last 12 quarters in the imported ECHO record.
Orangeville Wwtp
Significant Violation across 7 of the last 12 quarters in the imported ECHO record.
Otter Creek Lake Utility District Stp
Violation Identified across 7 of the last 12 quarters in the imported ECHO record.
Emerald Acres Campground Ii North
Violation Identified across 7 of the last 12 quarters in the imported ECHO record.
Lena Koa - Office/south Sites
Violation Identified across 7 of the last 12 quarters in the imported ECHO record.
German Valley Wwtp
Violation Identified across 6 of the last 12 quarters in the imported ECHO record.
Northern Hills Utility Stp
Significant noncompliance across 6 of the last 12 quarters in the imported ECHO record.
Adkins Energy, Llc
Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Berner Foods Inc
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Freeport Stp, City of
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 3 | 68,594 lbs |
| n-Hexane | TRI-listed chemical | 1 | 3,505 lbs |
| Acetaldehyde | TRI-listed chemical | 1 | 2,150 lbs |
| Ammonia | TRI-listed chemical | 1 | 1,900 lbs |
| Acrolein | TRI-listed chemical | 1 | 1,379 lbs |
| Methanol | TRI-listed chemical | 1 | 1,164 lbs |
| Nitric acid | TRI-listed chemical | 3 | 1,017 lbs |
| Copper | TRI-listed chemical | 5 | 381 lbs |
| Zinc compounds | TRI-listed chemical | 3 | 231 lbs |
| Nickel compounds | Metals and metal compounds | 1 | 125 lbs |
| Manganese | TRI-listed chemical | 3 | 63 lbs |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | Metals and metal compounds | 1 | 10 lbs |
| Nickel | Metals and metal compounds | 1 | 5 lbs |
| Benzene | Volatile organic compound | 1 | 0 lbs |
| Toluene | Volatile organic compound | 1 | 0 lbs |
| Lead compounds | Metals and metal compounds | 2 | 0 lbs |
| Lead | Metals and metal compounds | 2 | 0 lbs |
| Chromium | Metals and metal compounds | 2 | 0 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 1 | 0 lbs |
| Ethylbenzene | Volatile organic compound | 1 | 0 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Illinois
Illinois facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Illinois
Illinois facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Illinois
Illinois facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.