Washington Superfund (NPL) Sites
Clicking on the site name should take you directly to a U.S. EPA summary page for that site. If not, please let me know.
Location: Silverdale, Kitsap County
Contaminants: RDX · TNT
Bangor Ordnance Disposal (USNAVY)
Location: Silverdale, Kitsap County
Contaminants: RDX · TNT
Location: Vancouver, Clark County
Contaminants: Chromium · VOCs
Location: Bremerton, Kitsap County
Contaminants: PAHs
Location: Centralia, Lewis County
Contaminants: Arsenic · Manganese
Location: Colbert, Spokane County
Narrative: 40-acre landfill that operated from 1968 through 1986. It received municipal and commercial wastes, including organic solvents. Subsequent contamination of nearby drinking wells was traced back to the landfill, necessitating a remedy that included provision of alternate water supplies to users.
Contaminants: 1,1-Dichloroethane · 1,1-Dichloroethene · Chloromethane · Tetrachloroethene · 1,1,1-Trichloroethane · Trichloroethene
Commencement Bay, Near Shore/Tide Flats
Location: Tacoma and Ruston, Pierce County
Contaminants: Arsenic · Benzene · Cadmium · Copper · Lead · PAHs · PCBs
Commencement Bay, South Tacoma Channel
Location: Tacoma, Pierce County
Contaminants: Heavy Metals · VOCs
Fairchild Air Force Base (4 Waste Areas)
Location: Spokane, Spokane County
Contaminants: SVOCs · Trichloroethene
Location: Yakima, Yakima County
Contaminants: Pesticides
Location: Tacoma, Pierce County
Contaminants: Dichloroethene · PAHs · Trichloroethene
General Electric Co. (Spokane Shop)
Location: Spokane, Spokane County
Contaminants: PCBs
Grain Handling Facility at Freeman
Location: Freeman, Spokane County
Contaminants: Carbon tetrachloride · Chloroform
Location: Spokane, Spokane County
Contaminants: Heavy Metals · SVOCs · VOCs
Hamilton-Labree Groundwater Contamination
Location: Chehalis, Lewis County
Contaminants: Tetrachloroethene
Location: Richland, Benton County
Contaminants: Carbon-14 · Chromium · Strontium-90 · Tritium
Location: Richland, Benton County
Contaminants: Carbon Tetrachloride · Cyanide · Technetium · Tritium · Uranium
Location: Richland, Benton County
Contaminants: Chromium · Cobalt-60 · Copper · PCBs · Strontium-90 · Trichloroethene · Tritium · Uranium · VOCs
Location: Seattle, King County
Contaminants: Benzene · Cadmium · Ethylbenzene · Heavy Metals · Lead · Mercury · PAHs · PCBs · Petroleum hydrocarbons · Tributyl tin · Xylenes · Zinc
Hidden Valley Landfill (Thun Field)
Location: Puyallup, Pierce County
Contaminants: Metals · VOCs
Jackson Park Housing Complex (USNAVY)
Location: Bremerton, Kitsap County
Contaminants: Arsenic · Cadmium · Chromium · Copper · 1,3-Dinitrobenzene · 2,6-Dinitrotoluene · Lead · Nickel · 1,3-Dinitrobenzene · 2,4,6-Trinitrotoluene · Zinc
Location: Mead, Spokane County
Contaminants: Cyanide · Fluoride
Location: Lakewood, Pierce County
Contaminants: Tetrachloroethene · Trichloroethene
Location: Seattle, King County
Narrative: A shipyard that operated from 1946 to 1986. The facility discharged wastes directly into adjacent waters, resulting in sediments contamination.
Contaminants: Arsenic · Butyltins · Chromium · Copper · Lead · PAHs · PCBs · Silver · Zinc
Location: Seattle, King County
Contaminants: Arsenic · Dioxins · Furans · PAHs · PCBs
Makah Reservation Warmhouse Beach Dump
Location: Neah Bay, Clallam County
Contaminants: Heavy Metals
McChord Air Force Base / American Lake Gardens
Location: Tacoma, Pierce County
Contaminants: Dichloroethene · Metals · Trichloroethene
Location: Mica, Spokane County
Contaminants: Heavy Metals · Phenols · VOCs
Location: Spokane Indian Reservation
Narrative: The site includes a former open-pit uranium mine and nearby areas affected by mine operations. Mining occurred from 1954 to 1977. Affected media include soil, surface water, sediments, groundwater, and air.
Contaminants: Lead · Manganese · Radium · Uranium
Location: Kent, King County
Contaminants: Benzene · Heavy Metals · Vinyl Chloride · VOCs
Moses Lake Wellfield Contamination
Location: Moses Lake, Grant County
Contaminants: Trichloroethene
Naval Air Station, Whidbey Island (Ault Field)
Location: Oak Harbor, Island County
Contaminants: Trichloroethane · Trichloroethene
Naval Undersea Warfare Station (4 Areas)
Location: Keyport, Kitsap County
Contaminants: Heavy Metals · PCBs · Petroleum hydrocarbons · VOCs
Location: Spokane, Spokane County
Contaminants: PAHs · Petroleum hydrocarbons · VOCs
Location: Bellingham, Whatcom County
Contaminants: Creosote · PAHs · Pentachlorophenol
Old Navy Dump/Manchester Lab(USEPA/NOAA)
Location: Manchester, Kitsap County
Contaminants: Copper · Dioxins · Lead · Nickel · PCBs · Petroleum hydrocarbons · Zinc
Location: Renton, King County
Contaminants: Heavy Metals · PAHs · PCBs · Petroleum hydrocarbons · Solvents
Location: Seattle, King County
Contaminants: Creosote · PAHs
Palermo Well Field Ground Water Contamination
Location: Tumwater, Thurston County
Contaminants: Tetrachloroethene · Trichloroethene
Location: Pasco, Franklin County
Contaminants: Toluene · Trichloroethene · Xylenes
Puget Sound Naval Shipyard Complex
Location: Bremerton, Kitsap County
Contaminants: Heavy Metals · PCBs · Petroleum hydrocarbons · SVOCs · VOCs
Location: Maple Valley, King County
Contaminants: Arsenic · 1,2-Dichloroethene · PCBs · Trichloroethene
Location: Renton, King County
Contaminants: Creosote
Seattle Municipal Landfill (Kent Highlands)
Location: Kent, King County
Contaminants: Heavy Metals · Toluene · Trichloroethene · Vinyl Chloride · Xylenes
Location: Kent, King County
Contaminants: Heavy Metals · PCBs · Phenols · VOCs
Location: Bainbridge Island, Kitsap County
Contaminants: Dioxins · PAHs · Pentachlorophenol
Location: Vancouver, Clark County
Contaminants: Cyanide · Fluoride
Deleted: 1996
American Crossarm & Conduit Co.
Location: Chehalis, Lewis County
Contaminants: Creosote · Dioxins · Pentachlorophenol
Deleted: 2020
Bonneville Power Administration Ross Complex (USDOE)
Location: Vancouver, Clark County
Contaminants: Lead · PAHs · PCBs · Pentachlorophenol
Deleted: 1996
Location: Tacoma, Pierce County
Contaminants: Heavy Metals · SVOCs · VOCs
Deleted: 1995
Location: Vancouver, Clark County
Contaminants: Chromium
Deleted: 2018
Hamilton Island Landfill(USA/COE)
Location: North Bonneville, Skamania County
Contaminants: Arsenic · Cadmium · SVOCs · VOCs
Deleted: 1995
Location: Richland, Benton County
Contaminants: Asbestos · Heavy Metals · PCBs · Trichloroethene · VOCs
Deleted: 1996
McChord Air Force Base (Wash Rack/Treat)
Location: Tacoma, Pierce County
Contaminants: Benzene
Deleted: 1996
Naval Air Station, Whidbey Island (Seaplane)
Location: Oak Harbor, Island County
Contaminants: Arsenic · Lead · PAHs · Pesticides
Deleted: 1995
Location: Spokane, Spokane County
Contaminants: Tetrachloroethene · Trichloroethene
Deleted: 2020
Location: Everson, Whatcom County
Contaminants: PCBs
Deleted: 1999
Northwest Transformer(South Harkness St)
Location: Everson, Whatcom County
Contaminants: Arsenic · Cadmium · Lead · PCBs
Deleted: 1997
Location: Spokane, Spokane County
Contaminants: Heavy Metals
Deleted: 1999
Location: Yakima, Yakima County
Contaminants: Pesticides
Deleted: 1993
Port Hadlock Detachment (USNAVY)
Location: Indian Island, Jefferson County
Contaminants: Heavy Metals · Pesticides
Deleted: 2005
Location: Horse Springs Coulee, Okanogan County
Contaminants: Arsenic · Cyanide
Deleted: 1997
Spokane Junkyard/Associated Properties
Location: Spokane, Spokane County
Contaminants: Asbestos · PCBs · VOCs
Deleted: 1997
Location: Brush Prairie, Clark County
Contaminants: Heavy Metals · PCBs
Deleted: 1988
Location: Marysville, Snohomish County
Contaminants: Cadmium · Chromium · Copper · Lead · PCBs · SVOCs · Toluene · VOCs · Xylenes
Deleted: 2002
Vancouver Water Station #1 Contamination
Location: Vancouver, Clark County
Contaminants: Tetrachloroethene
Deleted: 2018
Vancouver Water Station #4 Contamination
Location: Vancouver, Clark County
Contaminants: Tetrachloroethene
Deleted: 2018
Location: Yakima, Yakima County
Contaminants: Copper · Lead · Zinc
Deleted: 1994
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