EPA Air · stack tests by county and year
Air-emissions stack tests in Otsego County, Michigan, 2026
- 6Stack 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 Otsego 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 Otsego County facility page.
Otsego County, Michigan, 2026
Air-emissions stack tests in Otsego County, other years
What stands out
- Stack tests in Otsego County, Michigan, rose from 5 in 2025, the previous year on file, to 6 in 2026.
- The county’s file for stack tests holds 7 years of events, from 2017 through 2026.
- Its 6 stack tests rank 13th of the 27 county cells in Michigan for 2026.
- Its 6 stack tests are 2.2% of the 270 the state’s file holds for 2026.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Otsego County, Michigan, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-14 | WOLVERINE POWER SUPPLY COOPERATIVE INC. - ALPINE POWER PLANT | Pass | State |
| 2026-08-06 | CORE ENERGY LLC - DOVER 36 CPF | Pass | State |
| 2026-07-14 | DCP ANTRIM GAS LLC | Pass | State |
| 2026-06-25 | ANR PIPELINE - CENTRAL CHARLTON COMPRESSOR STATION | Pass | State |
| 2026-05-07 | RIVERSIDE CARBON SOLUTIONS - TURTLE LAKE CO2 | Pass | State |
| 2026-05-05 | RIVERSIDE ENERGY MICHIGAN, LLC CHESTER 10 CO2 RECOVERY | 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 Otsego county, MI, in 2026. It lists 3 stack tests recorded in 2026.