EPA Air · stack tests by county and year
Air-emissions stack tests in Boulder County, Colorado, 2024
- 10Stack 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 2024. 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, 2024
- Inspections 33
Air-emissions stack tests in Boulder County, other years
Air-emissions stack tests recorded in Boulder County, Colorado, 2024
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2024-10-01 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-09-17 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-07-11 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-07-09 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-07-08 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-06-12 | AGC BIOLOGICS INC - AGC BIOLOGICS | Pass | State |
| 2024-06-11 | AGC BIOLOGICS INC - AGC BIOLOGICS | Pass | State |
| 2024-05-01 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-01-26 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | Pass | State |
| 2024-01-25 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | N/A | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.