EPA Air · stack tests by county and year
Air-emissions stack tests in Lake County, Minnesota, 2020
- 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 Lake County, Minnesota during 2020. 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 Lake County facility page.
Air-emissions stack tests in Lake County, other years
Air-emissions stack tests recorded in Lake County, Minnesota, 2020
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2020-12-18 | LOUISIANA-PACIFIC CORP - TWO HARBORS | Pass | State |
| 2020-10-01 | WISCONSIN CENTRAL LTD TWO HARBORS DOCKS | Pass | State |
| 2020-09-29 | NORTHSHORE MINING CO - SILVER BAY | Pass | State |
| 2020-08-27 | NORTHSHORE MINING CO - SILVER BAY | N/A | State |
| 2020-03-17 | NORTHSHORE MINING CO - SILVER BAY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.