EPA Air · stack tests by county and year
Air-emissions stack tests in Martin County, Minnesota, 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 Martin County, Minnesota 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 Martin County facility page.
Martin County, Minnesota, 2026
Air-emissions stack tests in Martin County, other years
Air-emissions stack tests recorded in Martin County, Minnesota, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-02 | GREAT RIVER ENERGY - LAKEFIELD JUNCTION STATION | Pass | State |
| 2026-03-03 | SOUTHERN MINNESOTA MUNICIPAL POWER AGENCY FAIRMONT ENERGY STATION | Pass | State |
| 2026-01-20 | CHS OILSEED PROCESSING | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.