EPA Air · stack tests by county and year
Air-emissions stack tests in Cass County, North Dakota, 2025
- 3Stack 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 Cass County, North Dakota 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 Cass County facility page.
Cass County, North Dakota, 2025
Air-emissions stack tests in Cass County, other years
Air-emissions stack tests recorded in Cass County, North Dakota, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-09 | CARGILL, INC. - CARGILL OILSEEDS PROCESSING - AQ | Pass | State |
| 2025-03-04 | NORTH DAKOTA STATE UNIVERSITY (NDSU) - HEATING PLANT - AQ | N/A | State |
| 2025-03-04 | THARALDSON ETHANOL PLANT I, LLC - AQ | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.