EPA Air · stack tests by county and year
Air-emissions stack tests in Jefferson County, Wisconsin, 2025
- 5Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Jefferson County, Wisconsin during 2025. 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 Jefferson County facility page.
Jefferson County, Wisconsin, 2025
- Inspections 28
Air-emissions stack tests in Jefferson County, other years
Air-emissions stack tests recorded in Jefferson County, Wisconsin, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-08-06 | WE ENERGIES - WHITEWATER GENERATING STATION | Pass | State |
| 2025-06-10 | AZTALAN BIO | Pass | State |
| 2025-06-03 | WE ENERGIES - WHITEWATER GENERATING STATION | Pass | State |
| 2025-06-03 | WE ENERGIES - WHITEWATER GENERATING STATION | Pass | State |
| 2025-01-28 | DAYBREAK FOODS COLDSPRING LOCATION | Fail | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.