EPA Air · by county
Air-emissions sources in Ashland County, Wisconsin
- 3Facilities
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Every stationary source in Ashland 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.
Every source’s record in Ashland County
Each of the 3 operating major, synthetic minor and minor sources in Ashland County, Wisconsin has a record page: every source in Ashland County, A to Z.
Inspections in Ashland 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 5
- 2025 inspections 9
- 2024 inspections 3
- 2023 inspections 4
- 2021 inspections 4
- 2019 inspections 3
Violations in Ashland County, by year
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.
Stack tests in Ashland County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 3
- 2024 stack tests 3
- 2023 stack tests 3
- 2021 stack tests 3
- 2020 stack tests 6
- 2019 stack tests 4
Inspections in Ashland County, year by year · Violations in Ashland County, year by year · Stack tests in Ashland County, year by year
Other counties in Wisconsin
Every county in the state with at least three sources on file.
- Barron County 14
- Brown County 51
- Calumet County 8
- Chippewa County 18
- Clark County 4
- Columbia County 9
- Crawford County 5
- Dane County 45
- Dodge County 17
- Douglas County 10
- Dunn County 10
- Eau Claire County 9
- Fond du Lac County 13
- Grant County 9
- Green County 8
- Jackson County 7
- Jefferson County 18
- Juneau County 7
- Kenosha County 16
Ashland County carries 3 of the 798 air-emissions sources this register holds in Wisconsin, which places it 53rd of 56 in that cohort.
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| COLUMBIA FOREST PRODUCTS-MELLEN | Synthetic minor source | No |
| MTTM CORPORATION | Synthetic minor source | No |
| XCEL ENERGY BAY FRONT GENERATING STATION | Major source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Ashland county, WI. It lists 3 facilities in Ashland county and 1 major source.