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.