EPA Air · violations by state and year
High-priority air violations in Wisconsin, 2025
- 358Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Every violation below was recorded against a source in Wisconsin during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Wisconsin, 2025
- Marathon County 41
- Ozaukee County 40
- Douglas County 24
- La Crosse County 22
- Monroe County 19
- Richland County 18
- Menominee County 16
- Juneau County 16
- Manitowoc County 13
- Sheboygan County 12
- Waushara County 11
- Fond du Lac County 11
- Taylor County 10
- Green County 9
- Waukesha County 9
- Chippewa County 8
- Barron County 8
- Kewaunee County 7
- Price County 7
- Rusk County 6
- Brown County 6
- Eau Claire County 4
- Washburn County 4
- Dunn County 4
- Dane County 3
- Undetermined County 3
- Waupaca County 3
- Kenosha County 3
- Lincoln County 3
Wisconsin, other years
High-priority air violations recorded in Wisconsin, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-04-01 | MID-AMERICA STEEL DRUM COMPANY-CLCM — high-priority violation on file | SAINT FRANCIS, Monroe, WI | HPV day-zero determination | State |
| 2025-04-01 | MID-AMERICA STEEL DRUM COMPANY-CLCM — high-priority violation on file | SAINT FRANCIS, Monroe, WI | HPV day-zero determination | State |
| 2025-03-19 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-03-19 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-03-18 | MARTH WOOD SHAVINGS SUPPLY INC — high-priority violation on file | MARATHON, Marathon, WI | Earliest FRV determination | State |
| 2025-03-13 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | HPV day-zero determination | State |
| 2025-03-13 | DOMTAR AW LLC — high-priority violation on file | NEKOOSA, Menominee, WI | Earliest FRV determination | State |
| 2025-03-13 | DOMTAR AW LLC — high-priority violation on file | NEKOOSA, Menominee, WI | Earliest FRV determination | State |
| 2025-03-07 | TTM TECHNOLOGIES NORTH AMERICA LLC | CHIPPEWA FALLS, Chippewa, WI | Earliest FRV determination | State |
| 2025-03-07 | TTM TECHNOLOGIES NORTH AMERICA LLC | CHIPPEWA FALLS, Chippewa, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-07 | AMERICAN ROLLER CO LLC | UNION GROVE, Richland, WI | Earliest FRV determination | State |
| 2025-03-03 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Earliest FRV determination | State |
| 2025-03-01 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | Earliest FRV determination | State |
| 2025-03-01 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | Earliest FRV determination | State |
| 2025-03-01 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | Earliest FRV determination | State |
| 2025-02-24 | FERADYNE OUTDOORS | SUPERIOR, Douglas, WI | Earliest FRV determination | State |
| 2025-02-24 | FERADYNE OUTDOORS | SUPERIOR, Douglas, WI | Earliest FRV determination | State |
| 2025-02-19 | ROSENDALE RENEWABLE ENERGY, LLC | ROSENDALE, Fond du Lac, WI | Earliest FRV determination | State |
| 2025-02-19 | ROSENDALE RENEWABLE ENERGY, LLC | ROSENDALE, Fond du Lac, WI | Earliest FRV determination | State |
| 2025-02-19 | ROSENDALE RENEWABLE ENERGY, LLC | ROSENDALE, Fond du Lac, WI | Earliest FRV determination | State |
| 2025-02-19 | ROSENDALE RENEWABLE ENERGY, LLC | ROSENDALE, Fond du Lac, WI | Earliest FRV determination | State |
| 2025-02-19 | ROSENDALE RENEWABLE ENERGY, LLC | ROSENDALE, Fond du Lac, WI | Earliest FRV determination | State |
| 2025-02-18 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | Earliest FRV determination | State |
| 2025-02-18 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | Earliest FRV determination | State |
| 2025-02-17 | LA CROSSE COUNTY SOLID WASTE MANAGEMENT FACILITY | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-02-11 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-02-11 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-02-11 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-02-11 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-02-11 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Earliest FRV determination | State |
| 2025-02-07 | SIENTRA | FRANKLIN, Monroe, WI | Earliest FRV determination | State |
| 2025-02-05 | MID CITY FOUNDRY CO | MILWAUKEE, Milwaukee, WI | Earliest FRV determination | State |
| 2025-02-03 | KERRY INC — high-priority violation on file | RHINELANDER, Outagamie, WI | Earliest FRV determination | State |
| 2025-01-29 | BIMBO BAKERIES USA, INC. | OCONOMOWOC, Waukesha, WI | Earliest FRV determination | State |
| 2025-01-29 | BIMBO BAKERIES USA, INC. | OCONOMOWOC, Waukesha, WI | Earliest FRV determination | State |
| 2025-01-29 | BIMBO BAKERIES USA, INC. | OCONOMOWOC, Waukesha, WI | Earliest FRV determination | State |
| 2025-01-27 | LINCOLN WOOD PRODUCTS | MERRILL, Lincoln, WI | Earliest FRV determination | State |
| 2025-01-25 | U.S. ENERGY MILWAUKEE SOUTH TERMINAL | MILWAUKEE, Monroe, WI | Earliest FRV determination | State |
| 2025-01-25 | U.S. ENERGY MILWAUKEE SOUTH TERMINAL | MILWAUKEE, Monroe, WI | Earliest FRV determination | State |
| 2025-01-23 | VIRESCO TURTLE LAKE — high-priority violation on file | TURTLE LAKE, Barron, WI | HPV day-zero determination | State |
| 2025-01-23 | VIRESCO TURTLE LAKE — high-priority violation on file | TURTLE LAKE, Barron, WI | HPV day-zero determination | State |
| 2025-01-22 | FLINT HILLS RESOURCES PINE BEND LLC - WAUPUN FACILITY | WAUPUN, Fond du Lac, WI | Earliest FRV determination | State |
| 2025-01-21 | U.S. ENERGY MILWAUKEE WEST TERMINAL | MILWAUKEE, Monroe, WI | Earliest FRV determination | State |
| 2025-01-21 | U.S. ENERGY MILWAUKEE WEST TERMINAL | MILWAUKEE, Monroe, WI | Earliest FRV determination | State |
| 2025-01-21 | U.S. ENERGY MILWAUKEE CENTRAL TERMINAL | MILWAUKEE, Monroe, WI | Earliest FRV determination | State |
| 2025-01-21 | U.S. ENERGY MILWAUKEE CENTRAL TERMINAL | MILWAUKEE, Monroe, WI | Earliest FRV determination | State |
| 2025-01-15 | SILGAN CONTAINERS MANUFACTURING CORP | KENOSHA, Kenosha, WI | Earliest FRV determination | State |
| 2025-01-14 | WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA — high-priority violation on file | ROTHSCHILD, Marathon, WI | HPV day-zero determination | State |
| 2025-01-14 | WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA — high-priority violation on file | ROTHSCHILD, Marathon, WI | HPV day-zero determination | State |
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Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.