EPA Air · stack tests by county and year
Air-emissions stack tests in Aroostook County, Maine, 2025
- 6Stack 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 Aroostook County, Maine 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 Aroostook County facility page.
Aroostook County, Maine, 2025
- Inspections 45
Air-emissions stack tests in Aroostook County, other years
Air-emissions stack tests recorded in Aroostook County, Maine, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-23 | SODERBERG COMPANY, INC. | Pass | State |
| 2025-10-07 | HUBER ENGINEERED WOODS LLC | Pass | State |
| 2025-08-20 | LOUISIANA-PACIFIC CORPORATION | Pass | State |
| 2025-07-01 | STEELSTONE INDUSTRIES, INC. | Pass | State |
| 2025-05-28 | STEELSTONE INDUSTRIES, INC. | Fail | State |
| 2025-02-20 | LOUISIANA-PACIFIC CORPORATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.