EPA Air · stack tests by county and year
Air-emissions stack tests in Lyon County, Minnesota, 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 Lyon County, Minnesota 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 Lyon County facility page.
Lyon County, Minnesota, 2025
Air-emissions stack tests in Lyon County, other years
Air-emissions stack tests recorded in Lyon County, Minnesota, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-05 | ADM - MARSHALL | Pass | State |
| 2025-09-30 | ADM - MARSHALL | Pass | State |
| 2025-08-05 | ADM - MARSHALL | Pass | State |
| 2025-07-29 | ADM - MARSHALL | Pass | State |
| 2025-07-15 | ADM - MARSHALL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.