EPA Air · stack tests by state, industry and year
Primary metal manufacturing (NAICS 3311): stack tests in North Carolina, 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 North Carolina source whose primary industry code is NAICS 3311. A facility filing more than one industry code is counted under the first one on its record.
Other industries in North Carolina, 2026
- Electrical equipment and appliance manufacturing (NAICS 3359) 29
- Utilities (NAICS 2211) 27
- Mining and quarrying (NAICS 2123) 17
- Waste management and remediation (NAICS 5622) 15
- Petroleum and coal products manufacturing (NAICS 3241) 11
- Chemical manufacturing (NAICS 3251) 9
- Chemical manufacturing (NAICS 3253) 8
- Nonmetallic mineral product manufacturing (NAICS 3272) 7
- Wood product manufacturing (NAICS 3219) 6
- Paper manufacturing (NAICS 3221) 6
- Wood product manufacturing (NAICS 3212) 6
- Utilities (NAICS 2213) 5
- Hospitals (NAICS 6221) 4
- Primary metal manufacturing (NAICS 3315) 4
- Food manufacturing (NAICS 3111) 3
Air-emissions stack tests recorded in North Carolina, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-17 | NUCOR STEEL LEXINGTON | LEXINGTON, Davidson, NC | Pending | State |
| 2026-05-03 | NUCOR STEEL - HERTFORD | COFIELD, Hertford, NC | Pass | State |
| 2026-04-23 | NUCOR STEEL - HERTFORD | COFIELD, Hertford, NC | Pass | State |
| 2026-01-21 | NUCOR STEEL LEXINGTON | LEXINGTON, Davidson, NC | Pending | 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.