EPA Air · stack tests by county and year
Air-emissions stack tests in Bay County, Michigan, 2026
- 4Stack 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 Bay 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 Bay County facility page.
Bay County, Michigan, 2026
Air-emissions stack tests in Bay County, other years
Air-emissions stack tests recorded in Bay County, Michigan, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-07 | PYRAMID PAVING & CONTRACTING CO. | Pass | State |
| 2026-06-23 | CONSUMERS ENERGY D.E. KARN FACILITY | Pass | State |
| 2026-05-12 | QUANTUM COMPOSITES INC. | Pass | State |
| 2026-02-10 | ENERGY DEVELOPMENTS PINCONNING, LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.