EPA Air · stack tests by county and year
Air-emissions stack tests in Boulder County, Colorado, 2019
- 6Stack 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 Boulder County, Colorado during 2019. 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 Boulder County facility page.
Boulder County, Colorado, 2019
Air-emissions stack tests in Boulder County, other years
Air-emissions stack tests recorded in Boulder County, Colorado, 2019
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2019-10-03 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2019-08-21 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2019-08-21 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | N/A | State |
| 2019-08-16 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2019-01-30 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2019-01-29 | CEMEX CONSTRUCTION MATERIALS - LYONS — 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.