EPA Air · stack tests by county and year
Air-emissions stack tests in Berkeley County, South Carolina, 2025
- 30Stack 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 Berkeley County, South 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 Berkeley County facility page.
Berkeley County, South Carolina, 2025
Air-emissions stack tests in Berkeley County, other years
Air-emissions stack tests recorded in Berkeley County, South Carolina, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-31 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Fail | State |
| 2025-11-20 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Fail | State |
| 2025-11-11 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-10-26 | MID-CONTINENT COAL AND COKE COMPANY | Pass | State |
| 2025-10-23 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Fail | State |
| 2025-10-23 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Pass | State |
| 2025-10-21 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Pass | State |
| 2025-09-25 | A M WILLIAMS STATION | Pass | State |
| 2025-09-23 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-09-18 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Fail | State |
| 2025-09-17 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Fail | State |
| 2025-09-16 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-09-16 | JW ALUMINUM COMPANY | Pass | State |
| 2025-08-27 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-08-20 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-08-14 | NUCOR STEEL - BERKELEY | Pass | State |
| 2025-07-29 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-07-11 | A M WILLIAMS STATION | Pass | State |
| 2025-07-11 | SECONDARY ALUMINUM TARGET LLC — high-priority violation on file | Pass | State |
| 2025-06-11 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-06-01 | SANDERS BROTHERS CONSTRUCTION COMPANY INC MOUNT HOLLY PLANT | Pass | State |
| 2025-05-22 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Pass | State |
| 2025-05-20 | A M WILLIAMS STATION | Pass | State |
| 2025-04-18 | SECONDARY ALUMINUM TARGET LLC — high-priority violation on file | Fail | State |
| 2025-04-02 | A M WILLIAMS STATION | Pass | State |
| 2025-03-20 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Pass | State |
| 2025-02-25 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | Pass | State |
| 2025-02-12 | INEOS US CHEMICALS COMPANY - COOPER RIVER PLANT — high-priority violation on file | Pass | State |
| 2025-02-05 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | Pass | State |
| 2025-01-10 | MID-CONTINENT COAL AND COKE COMPANY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.