EPA Air · stack tests by county and year
Air-emissions stack tests in Adams County, Colorado, 2025
- 35Stack 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 Adams County, Colorado 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 Adams County facility page.
Adams County, Colorado, 2025
Air-emissions stack tests in Adams County, other years
Air-emissions stack tests recorded in Adams County, Colorado, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-25 | WES DJ GAS PROC - WATTENBERG PLANT | N/A | State |
| 2025-11-12 | CRESTONE PEAK - RESERVE 3-65 35-34 | Fail | State |
| 2025-11-12 | CRESTONE PEAK - RESERVE 3-65 35-34 | Fail | State |
| 2025-10-23 | SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file | Pass | State |
| 2025-10-02 | HOLLY ENERGY - DENVER PRODUCTS TERMINAL | Pass | State |
| 2025-10-02 | HOLLY ENERGY - DENVER PRODUCTS TERMINAL | Pass | State |
| 2025-10-02 | HOLLY ENERGY - DENVER PRODUCTS TERMINAL | Pass | State |
| 2025-09-30 | SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file | Pass | State |
| 2025-09-25 | ROCKY MOUNTAIN MIDSTREAM - WATKINS C.S. | Pass | State |
| 2025-09-25 | ROCKY MOUNTAIN MIDSTREAM - WATKINS C.S. | Pass | State |
| 2025-08-27 | CRESTONE PEAK - CROW 3-64 29-30 | Pass | State |
| 2025-08-26 | PHILLIPS 66 PIPELINE - DENVER TERMINAL | Pass | State |
| 2025-08-19 | SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file | Pass | State |
| 2025-07-22 | SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file | Pass | State |
| 2025-06-30 | EXTRACTION O&G - ALMA 1S-66-2524 | Pass | State |
| 2025-06-30 | EXTRACTION O&G - ALMA 1S-66-2524 | Pass | State |
| 2025-06-30 | CRESTONE PEAK - KING 3-65 28-29 | Pass | State |
| 2025-06-16 | PDC ENERGY - BRANT LE PAD | Pass | State |
| 2025-05-29 | ROCKY MOUNTAIN MIDSTREAM - WATKINS C.S. | N/A | State |
| 2025-05-22 | WES DJ GAS PROC - WATTENBERG PLANT | Pass | State |
| 2025-04-29 | CRESTONE PEAK - MUSTANG BOOSTER STATION — high-priority violation on file | Pass | State |
| 2025-04-16 | PUBLIC SERVICE CO - CHEROKEE PLT | Pass | State |
| 2025-04-09 | PUBLIC SERVICE CO - CHEROKEE PLT | Pass | State |
| 2025-04-01 | WES DJ GAS PROC - WATTENBERG PLANT | Pass | State |
| 2025-04-01 | CRESTONE PEAK - KING 3-65 28-29 | Fail | State |
| 2025-04-01 | CRESTONE PEAK - KING 3-65 28-29 | Fail | State |
| 2025-04-01 | CRESTONE PEAK - KING 3-65 28-29 | Fail | State |
| 2025-04-01 | CRESTONE PEAK - KING 3-65 28-29 | Fail | State |
| 2025-04-01 | CRESTONE PEAK - KING 3-65 28-29 | Fail | State |
| 2025-04-01 | CRESTONE PEAK - KING 3-65 28-29 | Fail | State |
| 2025-03-14 | WES DJ GAS PROC - WATTENBERG PLANT | N/A | State |
| 2025-03-13 | WES DJ GAS PROC - WATTENBERG PLANT | Pending | State |
| 2025-01-29 | PDC ENERGY - SELTZER LD PAD | Pass | State |
| 2025-01-03 | AURORA CONV CENT- GAYLORD ROCKIES RESORT | Pass | State |
| 2025-01-03 | AURORA CONV CENT- GAYLORD ROCKIES RESORT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.