EPA Air · violations by county and year
High-priority air violations in Marathon County, Wisconsin, 2026
- 16Violations
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. Each row below is one violation recorded against a source in Marathon County, Wisconsin during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Marathon County facility page.
Marathon County, Wisconsin, 2026
- Inspections 43
- Stack tests 12
High-priority air violations in Marathon County, other years
High-priority air violations recorded in Marathon County, Wisconsin, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-21 | MULLINS CHEESE INC — high-priority violation on file | Earliest FRV determination | State |
| 2026-06-04 | CRYSTAL FINISHING SYSTEMS INC - MOSINEE — high-priority violation on file | Earliest FRV determination | State |
| 2026-06-04 | CRYSTAL FINISHING SYSTEMS INC - MOSINEE — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-22 | MULLINS CHEESE INC — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-22 | MULLINS CHEESE INC — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-07 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-07 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-04 | KERRY ROTHSCHILD — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-04 | KERRY ROTHSCHILD — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-04 | SENSORYEFFECTS POWDER SYSTEMS (FORMERLY — high-priority violation on file | Earliest FRV determination | State |
| 2026-05-04 | SENSORYEFFECTS POWDER SYSTEMS (FORMERLY — high-priority violation on file | Earliest FRV determination | State |
| 2026-02-11 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
| 2026-02-11 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
| 2026-02-11 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
| 2026-02-11 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
| 2026-01-27 | 3M CO WAUSAU PLT — high-priority violation on file | Earliest FRV determination | State |
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.