EPA Air · stack tests by state and year
Air-emissions stack tests in South Carolina, 2026
- 165Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in South Carolina during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in South Carolina, 2026
- Richland County 20
- Berkeley County 18
- Spartanburg County 11
- Dorchester County 10
- Chester County 8
- Georgetown County 8
- Oconee County 8
- Marlboro County 7
- Orangeburg County 6
- Charleston County 5
- Greenville County 5
- Aiken County 5
- Horry County 4
- Beaufort County 4
- Lexington County 4
- Anderson County 4
- Cherokee County 3
- Darlington County 3
- Florence County 3
- Sumter County 3
- Laurens County 3
- York County 3
- Pickens County 3
South Carolina, other years
Air-emissions stack tests recorded in South Carolina, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-04-30 | RESONAC GRAPHITE AMERICA INC — high-priority violation on file | RIDGEVILLE, Dorchester, SC | Pass | State |
| 2026-04-30 | MICHELIN NORTH AMERICA INC - GREENVILLE FACILITY (US 1) | GREENVILLE, Greenville, SC | Pass | State |
| 2026-04-25 | WATEREE STATION | EASTOVER, Richland, SC | Pass | State |
| 2026-04-23 | LOCKHART POWER CITY WEST DIESEL GENERATING FACILITY | UNION, Union, SC | Pass | State |
| 2026-04-22 | LOCKHART POWER COMPANY PACOLET | PACOLET, Spartanburg, SC | Pass | State |
| 2026-04-22 | NEW-INDY CATAWBA LLC | CATAWBA, York, SC | Pass | State |
| 2026-04-21 | LOCKHART POWER COMPANY | WELLFORD, Spartanburg, SC | Pass | State |
| 2026-04-16 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Pending | State |
| 2026-04-14 | SYLVAMO NORTH AMERICA LLC - EASTOVER MILL | EASTOVER, Richland, SC | Pending | State |
| 2026-04-09 | KING ASPHALT INC | PACOLET, Spartanburg, SC | Pending | State |
| 2026-04-09 | PALMETTO CORPORATION OF CONWAY - ORANGEBURG PLANT — high-priority violation on file | BOWMAN, Orangeburg, SC | Pass | State |
| 2026-04-08 | IKO GLASS FIBER INC - CHESTER PLANT | CHESTER, Chester, SC | Pending | State |
| 2026-04-08 | PALMETTO PAVING LUGOFF | LUGOFF, Kershaw, SC | Pass | State |
| 2026-04-07 | WESTROCK CP, LLC - FLORENCE MILL | FLORENCE, Florence, SC | Pass | State |
| 2026-04-07 | PALMETTO CORP - GREER PLANT | GREER, Greenville, SC | Pass | State |
| 2026-04-05 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2026-04-02 | KIMBERLY-CLARK PALMETTO — high-priority violation on file | BEECH ISLAND, Aiken, SC | Pass | State |
| 2026-04-02 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Pending | State |
| 2026-03-26 | EVERRIS NA INC CHARLESTON | N CHARLESTON, Charleston, SC | Pass | State |
| 2026-03-25 | ARAUCO NORTH AMERICA INC — high-priority violation on file | BENNETTSVILLE, Marlboro, SC | Pass | State |
| 2026-03-24 | RESONAC GRAPHITE AMERICA INC — high-priority violation on file | RIDGEVILLE, Dorchester, SC | Pass | State |
| 2026-03-24 | 48FORTY SOLUTIONS - GRAY COURT FACILITY — high-priority violation on file | GRAY COURT, Laurens, SC | Fail | State |
| 2026-03-19 | AMERESCO FEDERAL SOLUTIONS | AIKEN, Aiken, SC | Pass | State |
| 2026-03-19 | OLIVER'S CLEAN BURN LLC | BEAUFORT, Beaufort, SC | Pass | State |
| 2026-03-19 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Fail | State |
| 2026-03-19 | MILLIKEN & COMPANY - BLACKSBURG UTILITY CO-OP | BLACKSBURG, Cherokee, SC | Pass | State |
| 2026-03-19 | WATEREE STATION | EASTOVER, Richland, SC | Pass | State |
| 2026-03-11 | NEW-INDY CATAWBA LLC | CATAWBA, York, SC | Pass | State |
| 2026-03-10 | US MARINE CORPS AIR STATION BEAUFORT | BEAUFORT, Beaufort, SC | Pass | State |
| 2026-03-06 | WATEREE STATION | EASTOVER, Richland, SC | Pass | State |
| 2026-03-04 | SYLVAMO NORTH AMERICA LLC - EASTOVER MILL | EASTOVER, Richland, SC | Pass | State |
| 2026-03-04 | PILGRIMS PRIDE CORPORATION | SUMTER, Sumter, SC | Pass | State |
| 2026-03-03 | HAIG POINT CLUB — high-priority violation on file | DAUFUSKIE ISLAND, Beaufort, SC | Pass | State |
| 2026-03-03 | DOMTAR PAPER COMPANY LLC | BENNETTSVILLE, Marlboro, SC | Pass | State |
| 2026-02-25 | JONES HAMILTON CO RICHBURG FACILITY | RICHBURG, Chester, SC | Pass | State |
| 2026-02-25 | EASLEY COMBINED UTILITIES | EASLEY, Pickens, SC | Incomplete | State |
| 2026-02-25 | KEMIRA WATER SOLUTIONS INC | EASTOVER, Richland, SC | Pass | State |
| 2026-02-24 | SANTEE COOPER WINYAH GENERATING STATION | GEORGETOWN, Georgetown, SC | Pass | State |
| 2026-02-23 | TRI COUNTY PALLET COMPANY INC | BARNWELL, Barnwell, SC | Pass | State |
| 2026-02-20 | HONEA PATH GENERATING FACILITY | HONEA PATH, Abbeville, SC | Pass | State |
| 2026-02-19 | KINDER MORGAN SE TERMINALS LLC - NORTH AUGUSTA 2 TERMINAL | NORTH AUGUSTA, Aiken, SC | Pass | State |
| 2026-02-19 | GREER COMMISSION OF PUBLIC WORKS - WATER TREATMENT PLANT | GREER, Greenville, SC | Pass | State |
| 2026-02-19 | VALENITE GENERATING FACILITY | WESTMINSTER, Oconee, SC | Pass | State |
| 2026-02-13 | GEORGIA-PACIFIC WOOD PRODUCTS LLC - CLARENDON OSB | ALCOLU, Clarendon, SC | Pass | State |
| 2026-02-12 | MPLX TERMINALS LLC - BELTON TERMINAL | BELTON, Anderson, SC | Pass | State |
| 2026-02-10 | HONEYWELL SAFETY PRODUCTS — high-priority violation on file | CLOVER, York, SC | Pending | State |
| 2026-02-05 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | PINEVILLE, Berkeley, SC | Pass | State |
| 2026-02-03 | RESONAC GRAPHITE AMERICA INC — high-priority violation on file | RIDGEVILLE, Dorchester, SC | Fail | State |
| 2026-02-03 | RESONAC GRAPHITE AMERICA INC — high-priority violation on file | RIDGEVILLE, Dorchester, SC | Pass | State |
| 2026-01-23 | RESONAC GRAPHITE AMERICA INC — high-priority violation on file | RIDGEVILLE, Dorchester, SC | Pass | State |
| 2026-01-21 | COLLUM'S LUMBER PRODUCTS LLC — high-priority violation on file | ALLENDALE, Allendale, SC | Pass | State |
| 2026-01-20 | DOMTAR PAPER COMPANY LLC | BENNETTSVILLE, Marlboro, SC | Pass | State |
| 2026-01-15 | MICHELIN NORTH AMERICA INC SANDY SPRINGS FACILITY (US2) | SANDY SPRINGS, Anderson, SC | Pass | State |
| 2026-01-14 | CAROLINA GAS TRANSMISSION LLC - SOUTHERN COMPRESSOR STATION | WARRENVILLE, Aiken, SC | Pending | State |
| 2026-01-14 | ELEMENT MATERIALS TECHNOLOGY — high-priority violation on file | PIEDMONT, Anderson, SC | Fail | State |
| 2026-01-14 | NUCOR STEEL - BERKELEY | HUGER, Berkeley, SC | Pass | State |
| 2026-01-14 | SANTEE COOPER WINYAH GENERATING STATION | GEORGETOWN, Georgetown, SC | Pass | State |
| 2026-01-14 | GEORGETOWN COUNTY SOLID WASTE FACILITY | GEORGETOWN, Georgetown, SC | Pass | State |
| 2026-01-13 | MARINE CORPS RECRUIT DEPOT (MCRD) PARRIS ISLAND | PARRIS ISLAND, Beaufort, SC | Pending | State |
| 2026-01-13 | SANTEE COOPER WINYAH GENERATING STATION | GEORGETOWN, Georgetown, SC | Pass | State |
| 2026-01-12 | CAROLINA GAS TRANSMISSION LLC - EDGEMOOR COMPRESSOR STATION | EDGEMOOR, Chester, SC | Pass | State |
| 2026-01-08 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2026-01-08 | CAROLINA GAS TRANSMISSION LLC - BETHUNE COMPRESSOR STATION | BETHUNE, Kershaw, SC | Pass | State |
| 2026-01-07 | TRANSCONTINENTAL GAS PIPELINE COMPANY, LLC | MOORE, Spartanburg, SC | Pass | State |
| 2026-01-06 | CAROLINA GAS TRANSMISSION LLC - MOORE COMPRESSOR STATION | MOORE, Spartanburg, SC | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in SC for 2026. It lists 135 stack tests recorded in 2026.