EPA Air · stack tests by county and year
Air-emissions stack tests in Randolph County, North Carolina, 2026
- 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 Randolph County, North Carolina during 2026. 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 Randolph County facility page.
Randolph County, North Carolina, 2026
Air-emissions stack tests in Randolph County, other years
Air-emissions stack tests recorded in Randolph County, North Carolina, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-19 | TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC | Pending | State |
| 2026-06-01 | MARTIN MARIETTA MATERIALS, INC. - ASHEBORO QUARRY | Pass | State |
| 2026-03-30 | MARTIN MARIETTA MATERIALS, INC. - ASHEBORO QUARRY | Pass | State |
| 2026-03-11 | TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC | Pass | State |
| 2026-02-10 | TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.