EPA Air · stack tests by county and year
Air-emissions stack tests in Monroe County, Michigan, 2026
- 14Stack 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 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 Monroe County facility page.
Monroe County, Michigan, 2026
Air-emissions stack tests in Monroe County, other years
Air-emissions stack tests recorded in Monroe County, Michigan, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-28 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-07-16 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-06-25 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-05-21 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-04-09 | GUARDIAN INDUSTRIES-CARLETON | Pass | State |
| 2026-03-09 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-03-06 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-03-05 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-03-03 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-02-26 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-02-23 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-02-12 | GERDAU MACSTEEL MONROE MILL — high-priority violation on file | Pass | State |
| 2026-02-06 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | Pass | State |
| 2026-01-30 | GUARDIAN INDUSTRIES-CARLETON | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Monroe county, MI, 2026. It lists 14 stack tests recorded in 2026.