EPA Air · stack tests by county and year
Air-emissions stack tests in Alpena County, Michigan, 2026
- 9Stack 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 Alpena 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 Alpena County facility page.
Alpena County, Michigan, 2026
- Inspections 10
Air-emissions stack tests in Alpena County, other years
Air-emissions stack tests recorded in Alpena County, Michigan, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-09-01 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-08-04 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-07-28 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-06-23 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-06-16 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-06-11 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-03-25 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-03-05 | AMRIZE CEMENT INC. — high-priority violation on file | Pass | State |
| 2026-03-04 | AMRIZE CEMENT INC. — high-priority violation on file | 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 with stack tests in Alpena county, MI, for 2026. It lists 7 stack tests recorded in 2026.