EPA Air · stack tests by county and year
Air-emissions stack tests in Duchesne County, Utah, 2025
- 29Stack 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 Duchesne County, Utah 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 Duchesne County facility page.
Duchesne County, Utah, 2025
Air-emissions stack tests in Duchesne County, other years
Air-emissions stack tests recorded in Duchesne County, Utah, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-16 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-15 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-14 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-13 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-10 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-09 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-08 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-10-07 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-08-13 | KINDER MORGAN LLC - ALTAMONT EAST | Pass | State |
| 2025-08-05 | KINDER MORGAN LLC - WEST STATION | Pass | State |
| 2025-08-05 | KINDER MORGAN LLC - WEST STATION | Pass | State |
| 2025-07-17 | KINDER MORGAN ALTAMONT - SOUTH | Pass | State |
| 2025-07-16 | KINDER MORGAN ALTAMONT - SOUTH | Pass | State |
| 2025-07-16 | KINDER MORGAN ALTAMONT - SOUTH | Pass | State |
| 2025-07-15 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-07-15 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-16 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-04-15 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | Pass | State |
| 2025-04-09 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-09 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-02 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-02 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.