EPA Air · stack tests by county and year
Air-emissions stack tests in Darlington County, South Carolina, 2026
- 3Stack 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 Darlington County, South 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 Darlington County facility page.
Darlington County, South Carolina, 2026
- Inspections 11
Air-emissions stack tests in Darlington County, other years
Air-emissions stack tests recorded in Darlington County, South Carolina, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-09-28 | DUKE ENERGY PROGRESS LLC - HB ROBINSON DARLINGTON ELECTRIC POWER PLANT | Pending | State |
| 2026-09-02 | NUCOR CORPORATION - DARLINGTON PLANT | Pending | State |
| 2026-05-14 | SONOCO PRODUCTS COMPANY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.