EPA Air · stack tests by county and year
Air-emissions stack tests in Ottawa County, Ohio, 2026
- 8Stack 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 Ottawa County, Ohio 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 Ottawa County facility page.
Ottawa County, Ohio, 2026
Air-emissions stack tests in Ottawa County, other years
Air-emissions stack tests recorded in Ottawa County, Ohio, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-03-27 | COLUMBIA GAS TRANSMISSION -D74 SOUTH MUDDY CREEK COMPRESSION | Pass | State |
| 2026-03-27 | COLUMBIA GAS TRANSMISSION -D74 SOUTH MUDDY CREEK COMPRESSION | Pass | State |
| 2026-03-27 | COLUMBIA GAS TRANSMISSION -D74 SOUTH MUDDY CREEK COMPRESSION | Pass | State |
| 2026-03-26 | COLUMBIA GAS TRANSMISSION -D74 SOUTH MUDDY CREEK COMPRESSION | Pass | State |
| 2026-03-26 | COLUMBIA GAS TRANSMISSION -D74 SOUTH MUDDY CREEK COMPRESSION | Pass | State |
| 2026-03-26 | COLUMBIA GAS TRANSMISSION -D74 SOUTH MUDDY CREEK COMPRESSION | Pass | State |
| 2026-02-26 | US GYPSUM COMPANY | Pass | State |
| 2026-02-26 | US GYPSUM COMPANY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.