EPA Air · stack tests by county and year
Air-emissions stack tests in Chatham County, North Carolina, 2025
- 5Stack 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 Chatham County, North Carolina 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 Chatham County facility page.
Chatham County, North Carolina, 2025
- Inspections 56
Air-emissions stack tests in Chatham County, other years
Air-emissions stack tests recorded in Chatham County, North Carolina, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-15 | 3M PITTSBORO - INDUSTRIAL MINERAL PRODUCTS | Pass | State |
| 2025-09-04 | S. T. WOOTEN - PEA RIDGE ASPHALT PLANT | Pending | State |
| 2025-08-28 | TRUEROCK MATERIALS - SILER CITY PLANT | Pass | State |
| 2025-07-03 | ARAUCO NORTH AMERICA, INC. | Pass | State |
| 2025-04-08 | 3M PITTSBORO - INDUSTRIAL MINERAL PRODUCTS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.