EPA Air · stack tests by county and year
Air-emissions stack tests in Grays Harbor County, Washington, 2025
- 4Stack 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 Grays Harbor County, Washington 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 Grays Harbor County facility page.
Grays Harbor County, Washington, 2025
Air-emissions stack tests in Grays Harbor County, other years
Air-emissions stack tests recorded in Grays Harbor County, Washington, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-03 | SIERRA PACIFIC INDUSTRIES - COGENERATION — high-priority violation on file | Pending | Local |
| 2025-09-05 | GRAYS HARBOR ENERGY LLC | Pending | Local |
| 2025-06-03 | PANELTECH — high-priority violation on file | Incomplete | Local |
| 2025-04-29 | PANELTECH — high-priority violation on file | Pending | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.