EPA Air · stack tests by county, year by year
Air-emissions stack tests in Cass County, North Dakota, year by year
- 22Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every year on record for Cass County, North Dakota, most recent first. Each year page lists the events recorded at sources in the county that year.
Cass County, North Dakota, by year
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.