EPA Air · stack tests by county and year
Air-emissions stack tests in Pierce County, Washington, 2025
- 15Stack 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 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 Pierce County facility page.
Pierce County, Washington, 2025
- Inspections 318
Air-emissions stack tests in Pierce County, other years
Air-emissions stack tests recorded in Pierce County, Washington, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-23 | CAPITAL POWER CORPORATION | Pass | Local |
| 2025-10-10 | NORTHWEST PIPELINE GP SUMNER | Pass | Local |
| 2025-10-10 | NORTHWEST PIPELINE GP SUMNER | Pass | Local |
| 2025-09-23 | CAPITAL POWER CORPORATION | Pass | Local |
| 2025-09-23 | CAPITAL POWER CORPORATION | Pass | Local |
| 2025-09-23 | CAPITAL POWER CORPORATION | Pass | Local |
| 2025-09-23 | CAPITAL POWER CORPORATION | Pass | Local |
| 2025-09-09 | CARLISLE CONSTRUCTION MATERIALS INCORPORATED | Pass | Local |
| 2025-09-09 | CARLISLE CONSTRUCTION MATERIALS INCORPORATED | Pass | Local |
| 2025-07-29 | DSHS SPECIAL COMMITMENT CENTER | Fail | Local |
| 2025-06-26 | ARCHAEA ENERGY INC DBA. EMERALD CITY RENEWABLES LLC | Pass | Local |
| 2025-04-16 | PUGET PAVING | Pass | Local |
| 2025-04-04 | VULCAN METALS CORP | Pass | Local |
| 2025-04-04 | VULCAN METALS CORP | Pass | Local |
| 2025-04-01 | BOEING COMMERCIAL AIRPLANE, FREDERICKSON | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Pierce county, WA, 2025. It lists 15 stack tests recorded in 2025.