EPA Air · stack tests by county and year
Air-emissions stack tests in Morton County, North Dakota, 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 Morton 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 Morton County facility page.
Morton County, North Dakota, 2025
Air-emissions stack tests in Morton County, other years
Air-emissions stack tests recorded in Morton County, North Dakota, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-04 | TESORO REFINING & MARKETING COMPANY LLC - MARATHON MANDAN REFINERY - AQ | Pass | State |
| 2025-06-03 | CITY OF MANDAN - LANDFILL AIR CURTAIN DESTRUCTOR - AQ | Pass | State |
| 2025-05-29 | NORTHERN BORDER PIPELINE COMPANY - ST. ANTHONY COMPRESSOR STATION - AQ | Pass | State |
| 2025-05-28 | NORTHERN BORDER PIPELINE COMPANY - GLEN ULLIN COMPRESSOR STATION - AQ | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.