Washington hosts 47 Superfund cleanup sites, 325 facilities reporting to EPA's Toxic Release Inventory, and 1,764 facilities currently in significant noncompliance with federal environmental laws. EPA has assessed $159.0M in lifetime penalties across these facilities, and TRI reporters released roughly 9.7M pounds of regulated chemicals on-site in the latest reporting year. The single largest on-site releaser is Conagra Foods Lamb Weston Richland in Richland, reporting 3.3M lb to EPA.
| Site | City | Status |
|---|---|---|
| American Lake Gardens Mcchord Afb | Tacoma | Ready for anticipated reuse |
| Bangor Naval Submarine Base | Silverdale | Construction complete |
| Bangor Ordnance Disposal Usnavy | Bremerton | Construction complete |
| Boomsnub Airco | Vancouver | Cleanup underway |
| Bremerton Gasworks | Bremerton | Listed on NPL |
| Centralia Municipal Landfill | Centralia | Ready for anticipated reuse |
| Colbert Landfill | Spokane | Construction complete |
| Commencement Bay Near Shore Tide Flats | Tacoma | Cleanup underway |
| Commencement Bay South Tacoma Channel | Tacoma | Construction complete |
| Fairchild Air Force Base 4 Waste Areas | Spokane | Cleanup underway |
| Fmc Corp Yakima | Yakima | Ready for anticipated reuse |
| Fort Lewis Logistics Center | Tillicum | Ready for anticipated reuse |
| General Electric Co Spokane Apparatus Service Shop | Spokane | Ready for anticipated reuse |
| Grain Handling Facility At Freeman | Freeman | Listed on NPL |
| Greenacres Landfill | Spokane County | Ready for anticipated reuse |
| Hamilton Labree Roads Gw Contamination | Chehalis | Cleanup underway |
| Hanford 100 Area Usdoe | Benton County | Cleanup underway |
| Hanford 200 Area Usdoe | Benton County | Cleanup underway |
| Hanford 300 Area Usdoe | Benton County | Cleanup underway |
| Harbor Island Lead | Seattle | Cleanup underway |
| Hidden Valley Landfill Thun Field | Pierce County | Ready for anticipated reuse |
| Jackson Park Housing Complex Usnavy | Kitsap County | Cleanup underway |
| Kaiser Aluminum Mead Works | Mead | Cleanup underway |
| Lakewood | Lakewood | Ready for anticipated reuse |
| Lockheed West Seattle | Seattle | Ready for anticipated reuse |
| Lower Duwamish Waterway | Seattle | Cleanup underway |
| Makah Reservation Warmhouse Beach Dump | Neah Bay | Listed on NPL |
| Mica Landfill | Mica | Ready for anticipated reuse |
| Midnite Mine | Wellpinit | Cleanup underway |
| Midway Landfill | Kent | Ready for anticipated reuse |
| Moses Lake Wellfield Contamination | Moses Lake | Cleanup underway |
| Naval Air Station Whidbey Island Ault Field | Whidbey Island | Construction complete |
| Naval Undersea Warfare Engineering Station 4 Waste Areas | Keyport | Construction complete |
| North Market Street | Spokane | Ready for anticipated reuse |
| Oeser Co | Bellingham | Construction complete |
| Old Navy Dump Manchester Laboratory Usepa Noaa | Manchester | Ready for anticipated reuse |
| Pacific Car Foundry Co | Renton | Construction complete |
| Pacific Sound Resources | Seattle | Ready for anticipated reuse |
| Palermo Well Field Ground Water Contamination | Tumwater | Construction complete |
| Pasco Sanitary Landfill | Pasco | Remedy selected |
| Puget Sound Naval Shipyard Complex | Bremerton | Construction complete |
| Queen City Farms | Maple Valley | Ready for anticipated reuse |
| Quendall Terminals | Renton | Remedy selected |
| Seattle Municipal Landfill Kent Highlands | Kent | Ready for anticipated reuse |
| Upper Columbia River | Various | Superfund site |
| Western Processing Co Inc | Kent | Construction complete |
| Wyckoff Co Eagle Harbor | Bainbridge Island | Superfund site |