EPA Air · stack tests by county and year
Air-emissions stack tests in Pierce County, Washington, 2026
- 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 Pierce County, Washington 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 Pierce County facility page.
Pierce County, Washington, 2026
- Inspections 210
Air-emissions stack tests in Pierce County, other years
Air-emissions stack tests recorded in Pierce County, Washington, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-05-28 | RAINIER PLYWOOD COMPANY DBA RAINIER RICHLITE CO | Pass | Local |
| 2026-03-12 | VULCAN METALS CORP | Pass | Local |
| 2026-02-24 | PUGET SOUND ENERGY | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.