EPA Air · stack tests by county and year
Air-emissions stack tests in Covington County, Mississippi, 2025
- 11Stack 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 Covington County, Mississippi during 2025. 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 Covington County facility page.
Covington County, Mississippi, 2025
Air-emissions stack tests in Covington County, other years
Air-emissions stack tests recorded in Covington County, Mississippi, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-04 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | Pass | State |
| 2025-09-04 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | Pass | State |
| 2025-09-04 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | Pass | State |
| 2025-09-04 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | Pass | State |
| 2025-04-09 | CHEVRON USA, INC, DBA CHEVRON PRODUCTS COMPANY, COLLINS TERMINAL | Pass | State |
| 2025-03-27 | SOUTHEAST SUPPLY HEADER LLC, COLLINS BOOSTER STATION | Pass | State |
| 2025-03-27 | SOUTHEAST SUPPLY HEADER LLC, COLLINS BOOSTER STATION | Pass | State |
| 2025-03-27 | SOUTHEAST SUPPLY HEADER LLC, COLLINS BOOSTER STATION | Pass | State |
| 2025-03-26 | SOUTHEAST SUPPLY HEADER LLC, COLLINS BOOSTER STATION | Pass | State |
| 2025-03-26 | SOUTHEAST SUPPLY HEADER LLC, COLLINS BOOSTER STATION | Pass | State |
| 2025-03-26 | SOUTHEAST SUPPLY HEADER LLC, COLLINS BOOSTER STATION | 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 Covington county, MS, 2025. It lists 11 stack tests recorded in 2025.