EPA Air · stack tests by state and year
Air-emissions stack tests in Colorado, 2021
- 407Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Colorado during 2021; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Colorado, 2021
- Weld County 160
- Garfield County 60
- La Plata County 36
- Rio Blanco County 21
- Adams County 20
- Jefferson County 17
- Jackson County 15
- Pueblo County 14
- Moffat County 11
- Boulder County 10
- Eagle County 8
- Mesa County 8
- Fremont County 5
- Yuma County 3
- Larimer County 3
- Routt County 3
Colorado, other years
Air-emissions stack tests recorded in Colorado, 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-02-04 | BARGATH LLC - UNA COMPRESSOR STATION | BATTLEMENT MESA AREA, Garfield, CO | N/A | State |
| 2021-02-04 | COORSTEK, INC. - CENTER FOR ADVANCED MAT | GOLDEN, Jefferson, CO | Pass | State |
| 2021-01-29 | SIMCOE - WOLF POINT CENTRAL DELIVERY POINT | LA PLATA COUNTY, La Plata, CO | Pass | U.S. EPA |
| 2021-01-19 | BLACK HILLS ELECTRIC GENERATION - PAGS | PUEBLO, Pueblo, CO | Pass | State |
| 2021-01-14 | PUBLIC SERVICE CO - DENVER STEAM PLT | DENVER, Denver, CO | Pass | State |
| 2021-01-12 | ROCKY MOUNTAIN MIDSTREAM - POWHATON C.S. | BRIGHTON 3.0 MI. E OF, Adams, CO | Pass | State |
| 2021-01-12 | ROCKY MOUNTAIN MIDSTREAM - POWHATON C.S. | BRIGHTON 3.0 MI. E OF, Adams, CO | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.