EPA Air · by county
Air-emissions sources in Marathon County, Wisconsin
- 31Facilities
Every stationary source in Marathon County, Wisconsin that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Marathon County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Marathon County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 — inspections 43
- 2025 — inspections 59
- 2024 — inspections 35
- 2023 — inspections 24
- 2022 — inspections 21
- 2021 — inspections 16
- 2020 — inspections 16
- 2019 — inspections 9
- 2018 — inspections 19
- 2017 — inspections 10
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| 3M CO - GREYSTONE | Major source | Yes |
| 3M CO WAUSAU PLT | Major source | Yes |
| ABBYLAND FOODS INC | Synthetic minor source | No |
| AHLSTROM MOSINEE, LLC | Major source | Yes |
| APOGEE WAUSAU GROUP INC LINETEC DIVISION | Major source | Yes |
| BORREGAARD USA INC | Synthetic minor source | No |
| BUCKHORN RNG, LLC | Major source | No |
| CRYSTAL FINISHING SYSTEMS INC | Major source | No |
| CRYSTAL FINISHING SYSTEMS INC - MOSINEE | Synthetic minor source | Yes |
| DOMTAR PAPER CO LLC | Major source | No |
| EPIROC DRILLING TOOLS LLC | Synthetic minor source | No |
| GPI CORP | Major source | No |
| GRAPHIC PACKAGING INTERNATIONAL - WAUSAU | Synthetic minor source | No |
| IMPERIAL INDUSTRIES, INC. | Synthetic minor source | No |
| JARP INDUSTRIES INC | Synthetic minor source | No |
| KERRY ROTHSCHILD | Minor source | Yes |
| KOLBE & KOLBE MILLWORK CO INC | Major source | No |
| KOLBE RIVERSIDE | Major source | No |
| LAND O' LAKES INC. - CHEESE DIVISION | Synthetic minor source | No |
| MARATHON COUNTY LANDFILL | Major source | No |
| MARTH WOOD SHAVINGS SUPPLY INC | Major source | Yes |
| MERRILL IRON & STEEL | Major source | No |
| MULLINS CHEESE INC | Major source | Yes |
| SENSORYEFFECTS POWDER SYSTEMS (FORMERLY | Synthetic minor source | Yes |
| TOMCOR INDUSTRIES INC | Minor source | No |
| VERITAS STEEL LLC | Major source | No |
| VIRIDI MARATHON, LLC | Synthetic minor source | No |
| WAUSAU TILE INC | Major source | No |
| WAUSAU WATER TREATMENT PLANT | Minor source | No |
| WI PUBLIC SERVICE WESTON POWER PLANT | Major source | No |
| WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA | Major source | Yes |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.