County page
Waukesha County
Waukesha County currently shows 4 Superfund sites, 212 imported facility profiles, and 142,274 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 Waukesha County.
The latest loaded TRI year is 2024, with 142,274 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
Lauer I Sanitary Landfill
Lauer I Sanitary Landfill is in EPA's Superfund layer for Menomonee Falls, WI. Live ingestion currently includes the official EPA detail links and geocoded site record.
Master Disposal Service Landfill
Master Disposal Service Landfill is in EPA's Superfund layer for Brookfield, WI. Live ingestion currently includes the official EPA detail links and geocoded site record.
Muskego Sanitary Landfill
Muskego Sanitary Landfill is in EPA's Superfund layer for Muskego, WI. Live ingestion currently includes the official EPA detail links and geocoded site record.
Waste Management of Wisconsin Inc Brookfield Sanitary Landfill
Waste Management of Wisconsin Inc Brookfield Sanitary Landfill is in EPA's Superfund layer for Brookfield, WI. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Veolia Es Technical Solutions Llc
Significant noncompliance across 9 of the last 12 quarters, with $17,500 in recorded penalties.
Brenntag Great Lakes, Llc-distribution
Significant noncompliance across 7 of the last 12 quarters in the imported ECHO record.
Elm Grove Sewage Collection System
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Menomonee Falls Sewage Collection System
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Pewaukee Village Sewage Collection System
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Summit Utility District 2
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Waukesha Water Utility
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Essential Inds Inc
Significant noncompliance across 9 of the last 12 quarters in the imported ECHO record.
Douglas Plaza North
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Douglas Plaza South
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Dousman Water Utility-bh393
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Genesee Lake School South
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Kettle Moraine Ranch
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Mcdonalds Vernon
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Mukwonago Waterworks-abu417
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Pewaukee Village Waterworks-bh421
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Sussex Village Hall & Water Utility-to503
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Fox River Water Pollution Control Center
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Muskego Waterworks
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Tremain Mobile Home Park-tj178
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Styrene | Volatile organic compound | 7 | 60,570 lbs |
| Certain glycol ethers | TRI-listed chemical | 10 | 34,376 lbs |
| Toluene | Volatile organic compound | 3 | 14,550 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 5 | 8,053 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 6 | 6,415 lbs |
| n-Butyl alcohol | TRI-listed chemical | 5 | 3,598 lbs |
| Methanol | TRI-listed chemical | 4 | 3,339 lbs |
| Dichloromethane | TRI-listed chemical | 3 | 2,122 lbs |
| Ethylbenzene | Volatile organic compound | 6 | 1,432 lbs |
| Chromium | Metals and metal compounds | 15 | 1,234 lbs |
| Naphthalene | TRI-listed chemical | 6 | 1,124 lbs |
| Nickel | Metals and metal compounds | 15 | 1,076 lbs |
| Copper | TRI-listed chemical | 10 | 898 lbs |
| Nitric acid | TRI-listed chemical | 3 | 855 lbs |
| n-Hexane | TRI-listed chemical | 2 | 518 lbs |
| Cyclohexane | TRI-listed chemical | 1 | 500 lbs |
| Diisocyanates | TRI-listed chemical | 12 | 250 lbs |
| Phenol | TRI-listed chemical | 2 | 233 lbs |
| Copper compounds | TRI-listed chemical | 3 | 230 lbs |
| Methyl isobutyl ketone | TRI-listed chemical | 3 | 217 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Wisconsin
Wisconsin facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Wisconsin
Wisconsin facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Wisconsin
Wisconsin facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.