EPA Air · inspections by state and year
Air-emissions inspections in Wisconsin, 2026
- 515Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Every inspection below was recorded against a source in Wisconsin during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Wisconsin, 2026
- Monroe County 78
- Marathon County 43
- Brown County 41
- Douglas County 25
- Taylor County 22
- Ozaukee County 20
- Dane County 19
- Manitowoc County 17
- Jefferson County 17
- Menominee County 17
- Marinette County 16
- Waushara County 15
- Lincoln County 14
- Rusk County 14
- Eau Claire County 10
- Barron County 9
- Waupaca County 9
- Milwaukee County 8
- Chippewa County 7
- Richland County 7
- Wood County 6
- Waukesha County 6
- Fond du Lac County 6
- Columbia County 6
- Outagamie County 6
- La Crosse County 6
- Oconto County 5
- Sheboygan County 5
- Price County 5
- Oneida County 5
- Ashland County 5
- Pepin County 4
- Green County 4
- Calumet County 4
- Portage County 3
- Juneau County 3
- Kewaunee County 3
- Dunn County 3
- Grant County 3
Wisconsin, other years
Air-emissions inspections recorded in Wisconsin, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-08-03 | WI PUBLIC SERVICE WESTON POWER PLANT | KRONENWETTER, Marathon, WI | PCE Off-Site | State |
| 2026-08-03 | WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA — high-priority violation on file | ROTHSCHILD, Marathon, WI | PCE Off-Site | State |
| 2026-08-03 | WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA — high-priority violation on file | ROTHSCHILD, Marathon, WI | PCE Off-Site | State |
| 2026-08-03 | CRUISERS PLANT #1 DIV OF KCS INT. INC. | OCONTO, Oconto, WI | PCE Off-Site | State |
| 2026-08-03 | CRUISERS PLT 2 -DIV OF KCS INTERNATIONAL INC | OCONTO, Oneida, WI | PCE Off-Site | State |
| 2026-08-03 | NEENAH PAPER - WHITING MILL | STEVENS POINT, Portage, WI | PCE Off-Site | State |
| 2026-08-03 | LOUISIANA-PACIFIC CORPORATION - HAYWARD | HAYWARD, Shawano, WI | PCE Off-Site | State |
| 2026-08-03 | PLYMOUTH TUBE COMPANY | EAST TROY, Washburn, WI | FCE On-Site | State |
| 2026-08-03 | ND PAPER INC - BIRON DIVISION | WISCONSIN RAPIDS, Menominee, WI | PCE Off-Site | State |
| 2026-08-03 | COUNTER FORM LLC | MARSHFIELD, Wood, WI | PCE Off-Site | State |
| 2026-07-31 | MCKINLEY PAPER AND PACKAGING COMPANY — high-priority violation on file | COMBINED LOCKS, Ozaukee, WI | PCE Off-Site | State |
| 2026-07-31 | MCKINLEY PAPER AND PACKAGING COMPANY — high-priority violation on file | COMBINED LOCKS, Ozaukee, WI | PCE Off-Site | State |
| 2026-07-30 | ENBRIDGE SUPERIOR TERMINAL | SUPERIOR, Douglas, WI | PCE Off-Site | State |
| 2026-07-30 | ENBRIDGE SUPERIOR TERMINAL | SUPERIOR, Douglas, WI | PCE Off-Site | State |
| 2026-07-30 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | PCE Off-Site | State |
| 2026-07-30 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | PCE Off-Site | State |
| 2026-07-30 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | PCE Off-Site | State |
| 2026-07-30 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | PCE Off-Site | State |
| 2026-07-30 | FLINT HILLS RESOURCES PINE BEND, LLC - M | MILWAUKEE, Milwaukee, WI | FCE On-Site | State |
| 2026-07-30 | MCKINLEY PAPER AND PACKAGING COMPANY — high-priority violation on file | COMBINED LOCKS, Ozaukee, WI | PCE Off-Site | State |
| 2026-07-30 | BAKER MANUFACTURING | EVANSVILLE, Rusk, WI | PCE Off-Site | State |
| 2026-07-29 | WISCONSIN PROPPANTS - ALMA CENTER PLANT — high-priority violation on file | HUMBIRD, Clark, WI | PCE Off-Site | State |
| 2026-07-29 | PATTISON SAND PRAIRIE DU CHIEN RAIL LOAD-OUT — high-priority violation on file | PRAIRIE DU CHIEN, Crawford, WI | PCE Off-Site | State |
| 2026-07-29 | CALUMET RENEWABLE ENERGY - DAIRY DREAMS FACILITY — high-priority violation on file | CASCO, Kewaunee, WI | PCE Off-Site | State |
| 2026-07-29 | MILWAUKEE REGIONAL MEDICAL CENTER THERMAL SERVICES INC | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-29 | MAYNARD STEEL CASTING CO | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-29 | MMSD-JONES ISLAND WATER RECLAMATION FACILITY | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-29 | BIEWER WISCONSIN SAWMILL | PRENTICE, Price, WI | PCE Off-Site | U.S. EPA |
| 2026-07-29 | WPL - RIVERSIDE ENERGY CENTER | BELOIT, Rusk, WI | PCE Off-Site | State |
| 2026-07-29 | MCMILLAN ELECTRIC CO — high-priority violation on file | WOODVILLE, Sauk, WI | PCE Off-Site | State |
| 2026-07-29 | WE ENERGIES - WHITEWATER GENERATING STATION | WHITEWATER, Jefferson, WI | PCE Off-Site | State |
| 2026-07-28 | CHARTER AARROWCAST | SHAWANO, Sheboygan, WI | FCE On-Site | U.S. EPA |
| 2026-07-27 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | PCE Off-Site | State |
| 2026-07-27 | FLINT HILLS RESOURCES PINE BEND, LLC - M | MILWAUKEE, Milwaukee, WI | PCE Off-Site | State |
| 2026-07-24 | FERADYNE OUTDOORS | SUPERIOR, Douglas, WI | PCE On-Site | U.S. EPA |
| 2026-07-23 | GEORGIA PACIFIC BROADWAY LLC | GREEN BAY, Brown, WI | PCE Off-Site | State |
| 2026-07-23 | GEORGIA PACIFIC BROADWAY LLC | GREEN BAY, Brown, WI | PCE Off-Site | State |
| 2026-07-23 | GEORGIA PACIFIC BROADWAY LLC | GREEN BAY, Brown, WI | PCE Off-Site | State |
| 2026-07-23 | MG&E WEST CAMPUS COGENERATION FTY | MADISON, Dane, WI | PCE Off-Site | State |
| 2026-07-23 | MG&E WEST CAMPUS COGENERATION FTY | MADISON, Dane, WI | PCE Off-Site | State |
| 2026-07-23 | MG&E WEST CAMPUS COGENERATION FTY | MADISON, Dane, WI | PCE Off-Site | State |
| 2026-07-23 | MG&E WEST CAMPUS COGENERATION FTY | MADISON, Dane, WI | PCE Off-Site | State |
| 2026-07-23 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | PCE Off-Site | State |
| 2026-07-23 | DISCOVERY ENERGY LLC | MOSEL, Taylor, WI | PCE Off-Site | State |
| 2026-07-22 | AD TECH INDUSTRIES INC | WATERTOWN, Jefferson, WI | PCE On-Site | U.S. EPA |
| 2026-07-22 | SPECIALTY GRANULES LLC | PEMBINE, Marinette, WI | FCE On-Site | State |
| 2026-07-22 | MOLSON COORS USA LLC | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-22 | AHLSTROM STEVENS POINT LLC — high-priority violation on file | STEVENS POINT, Price, WI | PCE Off-Site | State |
| 2026-07-21 | MARATHON COUNTY LANDFILL | RINGLE, Marathon, WI | FCE On-Site | State |
| 2026-07-21 | APPLETON GRP LLC — high-priority violation on file | SOUTH MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-21 | VORTEQ COIL FINISHERS — high-priority violation on file | OCONOMOWOC, Waupaca, WI | PCE On-Site | U.S. EPA |
| 2026-07-20 | CARFAIR COMPOSITES USA INC | WAUSAUKEE, Marinette, WI | PCE Off-Site | State |
| 2026-07-20 | CARFAIR COMPOSITES USA INC | WAUSAUKEE, Marinette, WI | PCE Off-Site | State |
| 2026-07-20 | CARFAIR COMPOSITES USA INC — high-priority violation on file | GILLETT, Oneida, WI | PCE Off-Site | State |
| 2026-07-20 | CARFAIR COMPOSITES USA INC — high-priority violation on file | GILLETT, Oneida, WI | PCE Off-Site | State |
| 2026-07-17 | WISCONSIN ELECTRIC POWER COMPANY, D/B/A | WATERTOWN, Jefferson, WI | PCE Off-Site | State |
| 2026-07-17 | BALL CONTAINER, LLC | FORT ATKINSON, Jefferson, WI | PCE Off-Site | State |
| 2026-07-16 | MILWAUKEE REGIONAL MEDICAL CENTER THERMAL SERVICES INC | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-15 | GREEN BAY METRO SEWERAGE DIST | GREEN BAY, Brown, WI | FCE On-Site | State |
| 2026-07-13 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | PCE On-Site | State |
| 2026-07-13 | XCEL ENERGY - FRENCH ISLAND GENERATING PLANT | LA CROSSE, La Crosse, WI | PCE Off-Site | State |
| 2026-07-13 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | PCE Off-Site | State |
| 2026-07-13 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | PCE Off-Site | State |
| 2026-07-13 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | PCE Off-Site | State |
| 2026-07-13 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | PCE Off-Site | State |
| 2026-07-13 | U.S. ENERGY MILWAUKEE WEST TERMINAL | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-13 | U.S. ENERGY MILWAUKEE NORTH TERMINAL | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-13 | U.S. ENERGY MILWAUKEE JONES ISLAND TERMINAL | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-13 | U.S. ENERGY MILWAUKEE CENTRAL TERMINAL | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-13 | U.S. ENERGY MILWAUKEE SOUTH TERMINAL | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
| 2026-07-09 | WMWI - TIMBERLINE TRAIL RECYCLING & DISPOSAL | WEYERHAEUSER, St. Croix, WI | FCE On-Site | State |
| 2026-07-07 | CHARTER STEEL | SAUKVILLE, Ozaukee, WI | FCE On-Site | State |
| 2026-07-07 | VORTEQ COIL FINISHERS — high-priority violation on file | OCONOMOWOC, Waupaca, WI | FCE On-Site | State |
| 2026-07-06 | ALLIANT ENERGY - WPL - COLUMBIA ENERGY CENTER | PARDEEVILLE, Columbia, WI | PCE Off-Site | State |
| 2026-07-06 | ALLIANT ENERGY - WPL - COLUMBIA ENERGY CENTER | PARDEEVILLE, Columbia, WI | PCE Off-Site | State |
| 2026-07-06 | ARDAGH GLASS INC — high-priority violation on file | BURLINGTON, Richland, WI | FCE On-Site | State |
| 2026-07-02 | AMCOR WISCONSIN LLC - APPLETON | APPLETON, Ozaukee, WI | FCE Off-Site | State |
| 2026-07-01 | AHLSTROM MOSINEE, LLC — high-priority violation on file | MOSINEE, Marathon, WI | FCE On-Site | State |
| 2026-07-01 | APPLETON GRP LLC — high-priority violation on file | SOUTH MILWAUKEE, Monroe, WI | PCE On-Site | U.S. EPA |
| 2026-07-01 | MILLER COMPRESSING | MILWAUKEE, Milwaukee, WI | PCE Off-Site | U.S. EPA |
| 2026-06-29 | WEST SHORE - GRANVILLE STATION (GT) | MILWAUKEE, Monroe, WI | FCE On-Site | State |
| 2026-06-26 | ROCKGEN ENERGY CENTER — high-priority violation on file | CAMBRIDGE, Dane, WI | PCE Off-Site | State |
| 2026-06-24 | GPI CORP | SCHOFIELD, Marathon, WI | FCE On-Site | State |
| 2026-06-24 | ARDAGH GLASS INC — high-priority violation on file | BURLINGTON, Richland, WI | PCE Off-Site | State |
| 2026-06-23 | TEKNI-PLEX FLEXIBLES | MADISON, Dane, WI | FCE On-Site | State |
| 2026-06-23 | WAUSAU TILE INC | WAUSAU, Marathon, WI | FCE On-Site | State |
| 2026-06-22 | CARMEUSE LIME AND STONE - ROCKWELL OPERATION — high-priority violation on file | MANITOWOC, Manitowoc, WI | PCE Off-Site | State |
| 2026-06-18 | MARINETTE MARINE CORP — high-priority violation on file | MARINETTE, Marinette, WI | FCE On-Site | State |
| 2026-06-16 | RACINE WASTEWATER TREATMENT FACILITY — high-priority violation on file | RACINE, Richland, WI | FCE On-Site | State |
| 2026-06-12 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | PCE Off-Site | State |
| 2026-06-08 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | PCE Off-Site | State |
| 2026-06-08 | PACKAGING CORPORATION OF AMERICA-TOMAHAW | TOMAHAWK, Lincoln, WI | FCE On-Site | State |
| 2026-06-08 | MOLSON COORS USA LLC | MILWAUKEE, Monroe, WI | FCE On-Site | State |
| 2026-06-08 | NECAL ACQUISITION LLC (DBA NECAL) | SPARTA, Oconto, WI | FCE On-Site | State |
| 2026-06-05 | CRYSTAL FINISHING SYSTEMS INC | SCHOFIELD, Marathon, WI | FCE On-Site | State |
| 2026-06-05 | CRYSTAL FINISHING SYSTEMS INC - MOSINEE — high-priority violation on file | MOSINEE, Marathon, WI | FCE On-Site | State |
| 2026-06-03 | SPRINGS WINDOW FASHIONS LLC | MIDDLETON, Dane, WI | PCE On-Site | U.S. EPA |
| 2026-06-02 | DAIRYLAND BIOGAS - AGRA RNG-GTL PROJECT — high-priority violation on file | NEW FRANKEN, Brown, WI | FCE On-Site | State |
| 2026-06-01 | UW MADISON CHARTER STREET HEATING PLANT (DOA) | MADISON, Dane, WI | PCE Off-Site | State |
| 2026-06-01 | WE ENERGIES - VALLEY POWER PLANT | MILWAUKEE, Monroe, WI | PCE Off-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.