County page
Mchenry County
Mchenry County currently shows 1 Superfund site, 158 imported facility profiles, and 28,519 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 Mchenry County.
The latest loaded TRI year is 2024, with 28,519 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
Woodstock Municipal Landfill
Woodstock Municipal Landfill is in EPA's Superfund layer for Woodstock, IL. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Scot Forge Co
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Rohm & Haas Chemicals Llc
Significant Violation across 9 of the last 12 quarters in the imported ECHO record.
John Crane Inc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Huntley - West Wwtp
Violation Identified across 8 of the last 12 quarters, with $1,400 in recorded penalties.
Diversapack Llc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Hanson Material Service Yd 46
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Millers Dream Marine
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Top Die Casting Co.
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Algonquin Township
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Deicke Park Private Sewage Disposal System
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Lily Pond Stone
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Marengo Disposal Company
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Mcguire Road Pit - Harvard
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Spring Grove Stp
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Village of Johnsburg
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Woodstock Die Cast Inc
Violation across 12 of the last 12 quarters in the imported ECHO record.
Harvard Wwtp, City of
Violation Identified across 5 of the last 12 quarters, with $12,240 in recorded penalties.
Crystal Lake Stw #2, City of
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Wonder Lake Water Reclamation Facility
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Aqua Illinois-eastwood Manor
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Methyl methacrylate | TRI-listed chemical | 1 | 8,401 lbs |
| 1-Bromopropane | TRI-listed chemical | 1 | 4,879 lbs |
| Dichloromethane | TRI-listed chemical | 1 | 3,720 lbs |
| Toluene | Volatile organic compound | 2 | 1,871 lbs |
| Manganese | TRI-listed chemical | 7 | 1,615 lbs |
| Certain glycol ethers | TRI-listed chemical | 1 | 1,426 lbs |
| Butyl acrylate | TRI-listed chemical | 1 | 1,249 lbs |
| Styrene | Volatile organic compound | 1 | 764 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 1 | 580 lbs |
| Naphthalene | TRI-listed chemical | 1 | 483 lbs |
| Zinc compounds | TRI-listed chemical | 4 | 480 lbs |
| Ethylene glycol | TRI-listed chemical | 4 | 375 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 1 | 300 lbs |
| Methyl isobutyl ketone | TRI-listed chemical | 1 | 269 lbs |
| Chromium | Metals and metal compounds | 7 | 42 lbs |
| Copper | TRI-listed chemical | 7 | 42 lbs |
| Nickel | Metals and metal compounds | 6 | 39 lbs |
| Acrylic acid | TRI-listed chemical | 1 | 37 lbs |
| Formaldehyde | TRI-listed chemical | 1 | 28 lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 2 | 7 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.