EPA Air · stack tests by state, industry and year
Chemical manufacturing (NAICS 3251): stack tests in Louisiana, 2025
- 8Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a Louisiana source whose primary industry code is NAICS 3251. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3251) in Louisiana, other years
Other industries in Louisiana, 2025
- Oil and gas extraction (NAICS 2111) 37
- Pipeline transportation (NAICS 4862) 24
- Utilities (NAICS 2212) 22
- Petroleum and coal products manufacturing (NAICS 3241) 10
- Chemical manufacturing (NAICS 3252) 5
- Utilities (NAICS 2211) 4
- Chemical manufacturing (NAICS 3253) 3
Air-emissions stack tests recorded in Louisiana, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-10 | NEXPERA LLC - NEXPERA-BURNSIDE FACILITY | DARROW, Ascension, LA | Pass | State |
| 2025-12-10 | CHEVRON ORONITE CO LLC - OAK POINT PLANT | BELLE CHASSE, Plaquemines, LA | Pass | State |
| 2025-05-20 | KOCH METHANOL ST JAMES LLC - KOCH METHANOL FACILITY | ST. JAMES, St. James, LA | Pass | State |
| 2025-05-19 | KOCH METHANOL ST JAMES LLC - KOCH METHANOL FACILITY | ST. JAMES, St. James, LA | Pass | State |
| 2025-05-16 | KOCH METHANOL ST JAMES LLC - KOCH METHANOL FACILITY | ST. JAMES, St. James, LA | Pass | State |
| 2025-05-14 | KOCH METHANOL ST JAMES LLC - KOCH METHANOL FACILITY | ST. JAMES, St. James, LA | Pass | State |
| 2025-05-14 | KOCH METHANOL ST JAMES LLC - KOCH METHANOL FACILITY | ST. JAMES, St. James, LA | Pass | State |
| 2025-01-16 | UNION CARBIDE CORP - ST CHARLES OPERATIONS | HAHNVILLE, St. Charles, LA | Fail | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.