EPA Air · stack tests by county and year
Air-emissions stack tests in Skagit County, Washington, 2023
- 18Stack 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 Skagit County, Washington during 2023. 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 Skagit County facility page.
Skagit County, Washington, 2023
- Inspections 16
Air-emissions stack tests in Skagit County, other years
What stands out
- Stack tests in Skagit County, Washington, rose from 13 in 2022, the previous year on file, to 18 in 2023.
- The county’s file for stack tests holds 10 years of events, from 2017 through 2026.
- Its 18 stack tests rank 6th of the 15 county cells in Washington for 2023.
- Its 18 stack tests are 6.4% of the 283 the state’s file holds for 2023.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Skagit County, Washington, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-11-11 | AIR LIQUIDE AMERICA LP | Pass | Local |
| 2023-10-18 | HOLLYFRONTIER PUGET SOUND REFINERY | Pass | Local |
| 2023-10-06 | SIERRA PACIFIC IND.- SKAGIT LUMBER | Pass | Local |
| 2023-10-06 | SIERRA PACIFIC IND.- SKAGIT LUMBER | Pass | Local |
| 2023-10-04 | TESORO REFINING AND MARKETING COMPANY | Pass | Local |
| 2023-09-22 | NORTHWEST PIPELINE LLC- MOUNT VERNON | Pass | Local |
| 2023-09-21 | NORTHWEST PIPELINE LLC- MOUNT VERNON | Pass | Local |
| 2023-09-07 | HOLLYFRONTIER PUGET SOUND REFINERY | Pass | Local |
| 2023-08-17 | CHEMTRADE SOLUTIONS LLC | Pass | Local |
| 2023-08-16 | CHEMTRADE SOLUTIONS LLC | Pass | Local |
| 2023-08-09 | ANACORTES WWTP SEWAGE SLUDGE INCINERATOR | Pass | Local |
| 2023-06-07 | HOLLYFRONTIER PUGET SOUND REFINERY | Pass | Local |
| 2023-03-14 | PUGET SOUND ENERGY-FREDONIA | Pass | Local |
| 2023-03-01 | PUGET SOUND ENERGY-FREDONIA | Pass | Local |
| 2023-02-27 | TESORO REFINING AND MARKETING COMPANY | Pass | Local |
| 2023-02-24 | TESORO REFINING AND MARKETING COMPANY | Pass | Local |
| 2023-02-23 | TESORO REFINING AND MARKETING COMPANY | Pass | Local |
| 2023-02-22 | TESORO REFINING AND MARKETING COMPANY | 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 Skagit county, WA, in 2023. It lists 18 stack tests recorded in 2023.