EPA Air · by county
Air-emissions sources in King County, Washington
- 119Facilities
Every stationary source in King County, Washington that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in King County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in King County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 — inspections 266
- 2025 — inspections 756
- 2024 — inspections 593
- 2023 — inspections 659
- 2022 — inspections 423
- 2021 — inspections 265
- 2020 — inspections 366
- 2019 — inspections 336
- 2018 — inspections 339
- 2017 — inspections 350
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| SQUAK MOUNTAIN MATERIALS | Minor source | No |
| STARBUCKS MANUFACTURING CORPORATION | Synthetic minor source | No |
| STONEWAY ROCK & RECYCLING, BLACK RIVER, G MERLINO | Minor source | No |
| STRASSER WOODENWORKS LLC | Synthetic minor source | No |
| SUPERIOR CUSTOM CABINETS, INC. DBA SUPERIOR CABINETS | Synthetic minor source | No |
| TESORO 2GO | Minor source | No |
| TESORO MIRASTAR | Minor source | No |
| TOTAL RECLAIM INC | Minor source | No |
| TRI-STATE CONSTRUCTION, INC | Minor source | No |
| UNICO PROPERTIES LLC | Minor source | No |
| UNITED STATES BAKERY DBA FRANZ FAMILY BAKERIES, INC | Major source | No |
| UNIVERSITY OF WASHINGTON DBA EHNS | Synthetic minor source | No |
| US FEDERAL DETENTION CENTER SEATAC | Minor source | No |
| VALMET INC | Minor source | No |
| VIGOR SHIPYARDS, LLC | Major source | No |
| WA STATE FIRE TRAINING ACADEMY | Synthetic minor source | No |
| WATSON ASPHALT PAVING CO INC | Minor source | No |
| WESTERN PNEUMATIC TUBE CO | Major source | No |
| YOUNG CORP | Minor source | No |
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County as filed on the facility record. Figures from EPA’s ICIS-AIR download.