EPA Air · stack tests by county and year
Air-emissions stack tests in Northwest Arctic County, Alaska, 2026
- 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 Northwest Arctic County, Alaska during 2026. 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 Northwest Arctic County facility page.
Northwest Arctic County, Alaska, 2026
- Inspections 15
Air-emissions stack tests in Northwest Arctic County, other years
Air-emissions stack tests recorded in Northwest Arctic County, Alaska, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-04-29 | TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file | Pending | State |
| 2026-04-29 | TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file | N/A | State |
| 2026-04-29 | TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file | Pending | State |
| 2026-04-29 | TECK ALASKA, INC. (TECK) / DMTS PORT FACILITY — high-priority violation on file | Pending | State |
| 2026-04-29 | TECK ALASKA, INC. (TECK) / DMTS PORT FACILITY — high-priority violation on file | Pending | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.