EPA Air · stack tests by county and year
Air-emissions stack tests in Monroe County, Michigan, 2021
- 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 Monroe County, Michigan during 2021. 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 Monroe County facility page.
Monroe County, Michigan, 2021
Air-emissions stack tests in Monroe County, other years
Air-emissions stack tests recorded in Monroe County, Michigan, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-12-22 | GERDAU MACSTEEL MONROE MILL — high-priority violation on file | Pass | State |
| 2021-10-05 | GUARDIAN INDUSTRIES-CARLETON | Pass | State |
| 2021-09-30 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pending | State |
| 2021-07-13 | GUARDIAN INDUSTRIES-CARLETON | Fail | State |
| 2021-06-22 | GUARDIAN INDUSTRIES-CARLETON | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.