EPA Air · stack tests by county and year
Air-emissions stack tests in Madison County, Nebraska, 2025
- 4Stack 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 Madison 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 Madison County facility page.
Madison County, Nebraska, 2025
Air-emissions stack tests in Madison County, other years
Air-emissions stack tests recorded in Madison County, Nebraska, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-05-30 | CIE NORFOLK GNS LLC — high-priority violation on file | Pass | State |
| 2025-04-03 | NORFOLK CRUSH LLC | Pass | State |
| 2025-04-02 | NUCOR STEEL | N/A | State |
| 2025-01-23 | NORFOLK CRUSH LLC | N/A | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.