EPA Air · stack tests by county and year
Air-emissions stack tests in Natrona County, Wyoming, 2023
- 18Stack 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 Natrona County, Wyoming during 2023. 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 Natrona County facility page.
Natrona County, Wyoming, 2023
Air-emissions stack tests in Natrona County, other years
Air-emissions stack tests recorded in Natrona County, Wyoming, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-12-04 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | Pass | State |
| 2023-11-02 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | Pass | State |
| 2023-10-31 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-10-12 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | Pass | State |
| 2023-09-11 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | Pass | State |
| 2023-09-11 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | Pass | State |
| 2023-09-11 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.