EPA Air · stack tests by county and year
Air-emissions stack tests in Sarpy County, Nebraska, 2025
- 5Stack 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 Sarpy 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 Sarpy County facility page.
Sarpy County, Nebraska, 2025
Air-emissions stack tests in Sarpy County, other years
Air-emissions stack tests recorded in Sarpy County, Nebraska, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-12 | DARLING INGREDIENTS INC | Pass | State |
| 2025-09-23 | FIREBALL GROUP LLC DATA CENTER — high-priority violation on file | N/A | State |
| 2025-09-22 | FIREBALL GROUP LLC DATA CENTER — high-priority violation on file | Pass | State |
| 2025-05-09 | OPPD SARPY COUNTY STATION | Pass | State |
| 2025-02-21 | FIREBALL GROUP LLC DATA CENTER — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.