EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in Nebraska, 2026
- 11Stack 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 Nebraska 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 Nebraska, other years
Other industries in Nebraska, 2026
- Chemical manufacturing (NAICS 3251) 12
- Pipeline transportation (NAICS 4862) 7
- Food manufacturing (NAICS 3112) 7
Air-emissions stack tests recorded in Nebraska, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-08-06 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-07-29 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-07-28 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-07-20 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-07-16 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-07-15 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-07-08 | WHELAN ENERGY CENTER — high-priority violation on file | HASTINGS, Adams, NE | N/A | State |
| 2026-05-12 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-04-23 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2026-02-25 | OPPD NEBRASKA CITY STATION | NEBRASKA CITY, Otoe, NE | Pass | State |
| 2026-02-25 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
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.