EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in Mississippi, 2026
- 4Stack 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 2026 at a Mississippi source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.
Utilities (NAICS 2211) in Mississippi, other years
Other industries in Mississippi, 2026
- Pipeline transportation (NAICS 4862) 82
- Primary metal manufacturing (NAICS 3313) 29
- Chemical manufacturing (NAICS 3251) 25
- Oil and gas extraction (NAICS 2111) 20
- Paper manufacturing (NAICS 3221) 18
- Chemical manufacturing (NAICS 3252) 17
- Mining and quarrying (NAICS 2123) 15
- Petroleum and coal products manufacturing (NAICS 3241) 13
- Warehousing and storage (NAICS 4931) 13
- Space research and technology (NAICS 9271) 10
- Utilities (NAICS 2212) 7
- Wood product manufacturing (NAICS 3212) 5
- Merchant wholesalers, nondurable goods (NAICS 4247) 3
Air-emissions stack tests recorded in Mississippi, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-04-29 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file | BAY SPRINGS, Smith, MS | Pass | State |
| 2026-04-28 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file | BAY SPRINGS, Smith, MS | Pass | State |
| 2026-02-10 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2026-02-10 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | 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.