| City |
State |
Title |
Type of Site |
 Adak | Alaska | Adak Naval Air Station | NPL |
| Albany | Oregon | Teledyne Wah Chang | NPL |
| Anchorage | Alaska | Fort Richardson (USArmy) | NPL |
| Anchorage | Alaska | Elmendorf Air Force Base | NPL |
| Anchorage | Alaska | Standard Steel & Metals Salvage Yard (USDOT) | NPL |
| Anchorage | Alaska | Anchorage Terminal Reserve | RCRA CA |
| Ashton | Idaho | Ashton Texaco Oil | Oil |
| Atlanta | Idaho | Talache Mine Tailings | Mining |
| Bainbridge Island | Washington | Wyckoff-Eagle Harbor | NPL |
| Bellingham | Washington | Oeser Company | NPL |
| Benton County | Washington | Alexander Farms, Benton County, WA | Removal |
| Blackfoot | Idaho | Youngstrom Log Homes, Blackfoot, ID | Archived |
| Boise | Idaho | Payette River | Removal |
| Bremerton | Washington | Jackson Park Housing Complex (USNAVY) | NPL |
| Bremerton | Washington | Puget Sound Naval Shipyard Complex | NPL |
| Brush Prairie | Washington | Toftdahl Drums | Deleted NPL |
| Burns | Oregon | Burns AFB Asbestos Removal | Removal |
| Caldwell | Idaho | Franke's Laundromat | Removal |
| Centralia | Washington | Centralia Municipal Landfill | NPL |
| Chehalis | Washington | American Crossarm & Conduit Co. | NPL |
| Chehalis | Washington | Hamilton-LaBree Roads GW Contamination | NPL |
| Chelan | Washington | Holden Mine | Mining |
| Cobalt | Idaho | Blackbird Mine | Proposed NPL |
| Colbert | Washington | Colbert Landfill | NPL |
| Colville | Washington | Bonanza Mill | Site Assessment |
| Colville | Washington | Colville Post and Poles, Inc. | Removal |
| Corvallis | Oregon | United Chrome Products, Inc. | NPL |
| Enumclaw | Washington | Koopman Dairy | Removal |
| Everson | Washington | Nortwest Transformer (South Harkness Street) | Deleted NPL |
| Everson | Washington | Northwest Transformer (Mission Pole) | Deleted NPL |
| Fairbanks | Alaska | Eielson Air Force Base | NPL |
| Fairbanks | Alaska | Alaska Battery Enterprises | Deleted NPL |
| Fairbanks | Alaska | Arctic Surplus | NPL |
| Fidalgo Island | Washington | PM Northwest Removal Site | Removal |
| Fort Hill | Oregon | Fort Hill Gasoline Release to South Yamhill River | Oil |
| Fort Lewis | Washington | Fort Lewis Logistics Center | NPL |
| Fort Lewis | Washington | Fort Lewis (Landfill No. 5) | Deleted NPL |
| Fort Wainwright | Alaska | Fort Wainwright | NPL |
| Garden Valley | Idaho | Alley Fuels | Removal |
| Hailey | Idaho | Triumph Mine Tailings Piles | Proposed NPL |
| Harrisburg | Oregon | Harrisburg Jet Fuel Spill | Removal |
| Hermiston | Oregon | Umatilla Army Depot (Lagoons) | NPL |
| Hermiston | Oregon | Hermiston Lab | Removal |
| Joseph | Oregon | Joseph Forest Products | Deleted NPL |
| Kent | Washington | Western Processing Company, Inc. | NPL |
| Kent | Washington | Midway Landfill | NPL |
| Kent | Washington | Seattle Municipal Landfill (Kent Highlands) | NPL |
| Kent | Washington | Japanese Auto Wrecking | Removal |
| Ketchikan | Alaska | Ketchikan Pulp Company | NPL Equivalent |
| Keyport | Washington | Naval Undersea Warfare Center (4 Areas) | NPL |
| King Salmon | Alaska | King Salmon | |
| Klamath Falls | Oregon | North Ridge Estates Removal | Removal |
| Kooskia | Idaho | Clearwater Spill | Oil |
| Lake Oswego | Oregon | K-Lines Inc. Preliminary Assessment | Site Assessment |
| Lakeview | Oregon | Fremont Nat. Forest Uranium Mines (USDA) | NPL |
| Lakewood | Washington | Lakewood Site | NPL |
| Longview | Washington | Weyerhaeuser Oil Tank | Oil |
| Loomis | Washington | Silver Mountain Mine | Deleted NPL |
| Manchester | Washington | Old Navy Dump/Manchester Lab (USEPA/NOAA) | NPL |
| Maple Valley | Washington | Queen City Farms | NPL |
| Marysville | Washington | Tulalip Landfill | NPL |
| Mead | Washington | Kaiser Aluminum Mead Works | NPL |
| Mica | Washington | Mica Landfill | NPL |
| Milwaukie | Oregon | Northwest Pipe and Casing Company-Hall Process Company | NPL |
| Moses Lake | Washington | Moses Lake Wellfield Contamination | NPL |
| Mountain Home | Idaho | Mountain Home Air Force Base | NPL |
| Nighthawk | Washington | Kaaba-Texas Mine Removal, Nighthawk, WA | Removal |
| North Bonneville | Washington | Hamilton Island Landfill (USA/COE) | Deleted NPL |
| Northport | Washington | Le Roi Smelter | Removal |
| Oak Harbor | Washington | USNAVY Naval Air Station, Whidbey Island (Ault) | NPL |
| Oak Harbor | Washington | USNAVY Naval Air Station, Whidbey Island (Seaplane) | Deleted NPL |
| Oldtown | Idaho | Poles, Incorporated Integrated Assessment | |
| Pacatello | Idaho | Pacific Hide and Fur Recycling Company | Deleted NPL |
| Pasco | Washington | Pasco Sanitary Landfill | NPL |
| Pocatello | Idaho | Union Pacific Railroad Company | Deleted NPL |
| Pocatello | Idaho | Eastern Michaud Flats Contamination | NPL |
| Pocatello | Idaho | H&M Oil Site | Oil |
| Port Hadlock | Washington | USNAVY Port Hadlock Detachment Naval Ordnance Ctr Pac Div | NPL |
| Portland | Oregon | McCormick and Baxter Creosoting Company | NPL |
| Portland | Oregon | Grant Warehouse, Portland, Oregon | Removal |
| Portland | Oregon | Gould, Inc. | NPL |
| Portland | Oregon | Allied Plating, Inc. | Deleted NPL |
| Portland | Oregon | Portland Harbor, Oregon | NPL |
| Portland | Oregon | Industrial Chrome Plating | Removal |
| Portland | Oregon | Harbor Oil Inc. | NPL |
| Portland | Oregon | Portland Harbor - T4 | Part of NPL site |
| Portland | Oregon | GASCO | Removal |
| Portland | Oregon | Columbia American Plating Company | Removal |
| Portland | Oregon | Thermo Fluids | Oil |
| Puyallup | Washington | Hidden Valley Landfill (Thun Field) | NPL |
| Rathdrum | Idaho | ARRCOM (Drexler Enterprises) | Deleted NPL |
| Renton | Washington | Pacific Car and Foundry (PACCAR) | NPL |
| Renton | Washington | Olympic Pipeline Sample Line Gasoline Spill | Oil |
| Richland | Washington | Hanford, Washington | NPL |
| Richland | Washington | Hanford 1100-Area (USDOE) | Deleted NPL |
| Richland | Washington | Hanford 300-Area (USDOE) | NPL |
| Richland | Washington | Hanford 200-Area (USDOE) | NPL |
| Richland | Washington | Hanford (100-Area USDOE) | NPL |
| Salmon | Idaho | Steel & Ranch Supply | Removal |
| Scoville | Idaho | Idaho National Engineering Lab (USDOE) | NPL |
| Seattle | Washington | Harbor Island (Lead) | NPL |
| Seattle | Washington | Pacific Sound Resources | NPL |
| Seattle | Washington | Malarkey Asphalt Company | Removal |
| Seattle | Washington | West Waterway Tributyltin (TBT) | Part of NPL site |
| Seattle | Washington | Rhone-Poulenc Incorporated | |
| Sheridan | Oregon | Taylor Lumber & Treating Site | Proposed NPL |
| Silverdale | Washington | Bangor Naval Submarine Base | NPL |
| Silverdale | Washington | Bangor Ordnance Disposal (USNAVY) | NPL |
| Soda Springs | Idaho | Kerr-McGee Chemical Corporation | NPL |
| Soda Springs | Idaho | Monsanto Chemical Company | NPL |
| Spokane | Washington | Spokane Junkyard and Associated Properties | NPL |
| Spokane | Washington | Fairchild Air Force Base (4 Waste Areas) | NPL |
| Spokane | Washington | Old Inland Pit | NPL |
| Spokane | Washington | Greenacres Landfill | NPL |
| Spokane | Washington | General Electric Co. (Spokane Shop) | NPL |
| Spokane | Washington | Northside Landfill | NPL |
| Spokane | Washington | North Market Street | NPL |
| Stibnite | Idaho | Stibnite-Yellow Pine Mining Area | Proposed NPL |
| St. Maries | Idaho | St. Maries Creosote | Proposed NPL |
| Tacoma | Washington | CleanCare Removal Site | Removal |
| Tacoma | Washington | Tacoma Tarpits | NPL |
| Tacoma | Washington | Commencement Bay-South Tacoma Channel | NPL |
| Tacoma | Washington | Commencement Bay-Nearshore Tideflats | NPL |
| Tacoma | Washington | USAF McChord AFB American Lake Gardens | NPL |
| Tacoma | Washington | USAF McChord Air Force Base (Wash Rack Treatment Area) | Deleted NPL |
| Tacoma | Washington | Asarco Smelter - Ruston | Part of NPL site |
| Tacoma | Washington | Hylebos Waterway | Part of NPL site |
| Tacoma | Washington | Thea Foss, Wheeler-Osgood Waterway | Part of NPL site |
| Tacoma WA | Washington | Middle Waterway | Part of NPL site |
| The Dalles | Oregon | Union Pacific Railroad Tie Treating Plant | NPL |
| The Dalles | Oregon | Martin-Marietta Aluminum Company | Deleted NPL |
| Troutdale | Oregon | Reynolds Metals | NPL |
| Tukwila | Washington | Lower Duwamish Waterway Site | NPL |
| Tumwater | Washington | Palermo Well Field Groundwater Contamination | NPL |
| Twisp | Washington | Alder Gold and Copper Mill | Removal |
| Vancouver | Washington | Vancouver Water Station #1 Contamination | NPL |
| Vancouver | Washington | USDOE BPA Ross Complex | Deleted NPL |
| Vancouver | Washington | Boomsnub-AIRCO | NPL |
| Vancouver | Washington | Alcoa Smelter | Deleted NPL |
| Vancouver | Washington | Frontier Hard Chrome, Inc. | NPL |
| Vancouver | Washington | Vancouver Water Station #4 Contamination | NPL |
| Vancouver | Washington | Boomsnub 2001 Removal | Removal |
| Vancouver | Washington | Camp Bonneville | BRAC |
| Wallace-Mullan | Idaho | Union Pacific Railroad, Wallace-Mullan Branch, Northern ID. | Removal |
| Wellpinit | Washington | Midnite Mine | NPL |
| Willamette River mile 56 | Oregon | San Salvador Grounding | Oil |
| Yakima | Washington | FMC Corp. (Yakima Pit) | NPL |
| Yakima | Washington | Yakima Plating Company | Deleted NPL |
| Yakima | Washington | Pesticide Lab (Yakima) | Deleted NPL |