EPA Air · stack tests by county and year
Air-emissions stack tests in Lancaster County, Nebraska, 2025
- 20Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Lancaster County, Nebraska during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Lancaster County facility page.
Lancaster County, Nebraska, 2025
- Inspections 192
Air-emissions stack tests in Lancaster County, other years
Air-emissions stack tests recorded in Lancaster County, Nebraska, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-18 | NPPD SHELDON STATION | Pass | Local |
| 2025-08-28 | NPPD SHELDON STATION | Pass | Local |
| 2025-08-26 | NPPD SHELDON STATION | Pass | Local |
| 2025-08-22 | AGATE LLC | Pass | Local |
| 2025-08-20 | AGATE LLC | Pass | Local |
| 2025-08-13 | NPPD SHELDON STATION | Pass | Local |
| 2025-07-29 | ADM SOYBEAN OIL EXTRACTION PLANT | Pass | Local |
| 2025-07-28 | NPPD SHELDON STATION | Pass | Local |
| 2025-07-22 | NPPD SHELDON STATION | Pass | Local |
| 2025-07-21 | NPPD SHELDON STATION | Pass | Local |
| 2025-07-17 | NPPD SHELDON STATION | Pass | Local |
| 2025-07-16 | NPPD SHELDON STATION | Pass | Local |
| 2025-07-10 | LES ROKEBY PEAKING UNIT | Pass | Local |
| 2025-06-04 | NPPD SHELDON STATION | Pass | Local |
| 2025-05-28 | NPPD SHELDON STATION | Pass | Local |
| 2025-05-09 | AGATE LLC | Pass | Local |
| 2025-05-09 | AGATE LLC | Pass | Local |
| 2025-04-11 | NPPD SHELDON STATION | Pending | Local |
| 2025-01-16 | NPPD SHELDON STATION | Pass | Local |
| 2025-01-14 | NPPD SHELDON STATION | Pass | Local |
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 Lancaster county, NE, for 2025. It lists 20 stack tests recorded in 2025.