EPA Air · stack tests by county and year
Air-emissions stack tests in Koochiching County, Minnesota, 2021
- 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 Koochiching County, Minnesota during 2021. 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 Koochiching County facility page.
Air-emissions stack tests in Koochiching County, other years
Air-emissions stack tests recorded in Koochiching County, Minnesota, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-04-20 | BOISE WHITE PAPER LLC | Pass | State |
| 2021-01-19 | BOISE WHITE PAPER LLC | Pass | State |
| 2021-01-06 | BOISE WHITE PAPER LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.