EPA Air · stack tests by county and year
Air-emissions stack tests in Crawford County, Michigan, 2025
- 10Stack 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 Crawford County, Michigan 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 Crawford County facility page.
Crawford County, Michigan, 2025
Air-emissions stack tests in Crawford County, other years
Air-emissions stack tests recorded in Crawford County, Michigan, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-04 | ARAUCO NORTH AMERICA | Pass | State |
| 2025-11-21 | ARAUCO NORTH AMERICA | Pass | State |
| 2025-11-20 | GRAYLING GENERATING STATION LTD PARTNER | Pass | State |
| 2025-10-28 | WEYERHAEUSER NR COMPANY | Pass | State |
| 2025-10-28 | WEYERHAEUSER NR COMPANY | Pass | State |
| 2025-10-22 | GRAYLING GENERATING STATION LTD PARTNER | Fail | State |
| 2025-10-14 | GRAYLING GENERATING STATION LTD PARTNER | Pass | State |
| 2025-10-08 | WEYERHAEUSER NR COMPANY | Pass | State |
| 2025-06-24 | WEYERHAEUSER NR COMPANY | Pass | State |
| 2025-04-29 | GRAYLING GENERATING STATION LTD PARTNER | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.