EPA Air · stack tests by county and year
Air-emissions stack tests in Knox County, Tennessee, 2025
- 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 Knox County, Tennessee 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 Knox County facility page.
Knox County, Tennessee, 2025
Air-emissions stack tests in Knox County, other years
Air-emissions stack tests recorded in Knox County, Tennessee, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-23 | CEMEX CONSTRUCTION MATERIALS ATLANTIC, LLC - KNOXVILLE CEMENT PLANT | Pass | Local |
| 2025-09-26 | CEMEX CONSTRUCTION MATERIALS ATLANTIC, LLC - KNOXVILLE CEMENT PLANT | Pass | Local |
| 2025-09-10 | CEMEX CONSTRUCTION MATERIALS ATLANTIC, LLC - KNOXVILLE CEMENT PLANT | Pass | Local |
| 2025-07-15 | CEMEX CONSTRUCTION MATERIALS ATLANTIC, LLC - KNOXVILLE CEMENT PLANT | Incomplete | Local |
| 2025-06-03 | CEMEX CONSTRUCTION MATERIALS ATLANTIC, LLC - KNOXVILLE CEMENT PLANT | Pass | Local |
| 2025-04-04 | CMC STEEL US, LLC - CMC STEEL TENNESSEE | Pending | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.