EPA Air · stack tests by county and year
Air-emissions stack tests in Fond du Lac County, Wisconsin, 2026
- 3Stack 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 Fond du Lac 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 Fond du Lac County facility page.
Fond du Lac County, Wisconsin, 2026
Air-emissions stack tests in Fond du Lac County, other years
Air-emissions stack tests recorded in Fond du Lac County, Wisconsin, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-11 | MERCURY MARINE - PLANTS 3,4,10,12,15,17, | Pass | State |
| 2026-06-10 | WPL-SOUTH FOND DU LAC COMBUSTION TURBINE SITE | Pass | State |
| 2026-03-03 | GRAYMONT WESTERN LIME - EDEN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.