EPA Air · stack tests by county and year
Air-emissions stack tests in Sweetwater County, Wyoming, 2025
- 228Stack 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 Sweetwater County, Wyoming 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 Sweetwater County facility page.
Sweetwater County, Wyoming, 2025
- Inspections 16
Air-emissions stack tests in Sweetwater County, other years
Air-emissions stack tests recorded in Sweetwater County, Wyoming, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-03-26 | ROCK SPRINGS FERTILIZER COMPLEX (SIMPLOT PHOSPHATES) | Pass | State |
| 2025-03-26 | ROCK SPRINGS FERTILIZER COMPLEX (SIMPLOT PHOSPHATES) | Pass | State |
| 2025-03-25 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | Pass | State |
| 2025-03-25 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | Pass | State |
| 2025-03-25 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | Pass | State |
| 2025-03-25 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | Pass | State |
| 2025-03-25 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | Pass | State |
| 2025-03-25 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | Pass | State |
| 2025-03-25 | RINER STATION (SOUTHERN STAR CENTRAL GAS PIPELINE) | Pass | State |
| 2025-03-25 | RINER STATION (SOUTHERN STAR CENTRAL GAS PIPELINE) | Pass | State |
| 2025-02-25 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | Pass | State |
| 2025-02-25 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | Pass | State |
| 2025-02-25 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | Pass | State |
| 2025-02-24 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | Pass | State |
| 2025-02-24 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | Pass | State |
| 2025-02-24 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | Pass | State |
| 2025-02-12 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | Pass | State |
| 2025-02-12 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | Pass | State |
| 2025-02-06 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | Pass | State |
| 2025-02-06 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | Pass | State |
| 2025-02-06 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | Pass | State |
| 2025-02-06 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | Pass | State |
| 2025-01-09 | GREEN RIVER COMPRESSOR STATION (NORTHWEST PIPELINE) | Pass | State |
| 2025-01-09 | GREEN RIVER COMPRESSOR STATION (NORTHWEST PIPELINE) | Pass | State |
| 2025-01-09 | GREEN RIVER COMPRESSOR STATION (NORTHWEST PIPELINE) | Pass | State |
| 2025-01-09 | GREEN RIVER COMPRESSOR STATION (NORTHWEST PIPELINE) | Pass | State |
| 2025-01-09 | GREEN RIVER COMPRESSOR STATION (NORTHWEST PIPELINE) | Pass | State |
| 2025-01-09 | GREEN RIVER COMPRESSOR STATION (NORTHWEST PIPELINE) | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.