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Washington NPL Sites


Eco-USA: NPL Sites: Washington

Note: About NPL Site Links


Active Sites

Jump to: Deleted Sites


Bangor Naval Submarine Base

Location: Silverdale, Kitsap County

Contaminants: RDX · TNT


Bangor Ordnance Disposal (USNAVY)

Location: Silverdale, Kitsap County

Contaminants: RDX · TNT


Boomsnub/Airco

Location: Vancouver, Clark County

Contaminants: Chromium · VOCs


Bremerton Gasworks

Location: Bremerton, Kitsap County

Contaminants: PAHs


Centralia Municipal Landfill

Location: Centralia, Lewis County

Contaminants: Arsenic · Manganese


Colbert Landfill

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


FMC Corp. (Yakima Pit)

Location: Yakima, Yakima County

Contaminants: Pesticides


Fort Lewis Logistics Center

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


Greenacres Landfill

Location: Spokane, Spokane County

Contaminants: Heavy Metals · SVOCs · VOCs


Hamilton-Labree Groundwater Contamination

Location: Chehalis, Lewis County

Contaminants: Tetrachloroethene


Hanford 100-Area (USDOE)

Location: Richland, Benton County

Contaminants: Carbon-14 · Chromium · Strontium-90 · Tritium


Hanford 200-Area (USDOE)

Location: Richland, Benton County

Contaminants: Carbon Tetrachloride · Cyanide · Technetium · Tritium · Uranium


Hanford 300-Area (USDOE)

Location: Richland, Benton County

Contaminants: Chromium · Cobalt-60 · Copper · PCBs · Strontium-90 · Trichloroethene · Tritium · Uranium · VOCs


Harbor Island (Lead)

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


Kaiser Aluminum Mead Works

Location: Mead, Spokane County

Contaminants: Cyanide · Fluoride


Lakewood Site

Location: Lakewood, Pierce County

Contaminants: Tetrachloroethene · Trichloroethene


Lockheed West Seattle

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


Lower Duwamish Waterway

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


Mica Landfill

Location: Mica, Spokane County

Contaminants: Heavy Metals · Phenols · VOCs


Midnite Mine

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


Midway Landfill

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


North Market Street

Location: Spokane, Spokane County

Contaminants: PAHs · Petroleum hydrocarbons · VOCs


Oeser Co

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


Pacific Car & Foundry Co.

Location: Renton, King County

Contaminants: Heavy Metals · PAHs · PCBs · Petroleum hydrocarbons · Solvents


Pacific Sound Resources

Location: Seattle, King County

Contaminants: Creosote · PAHs


Palermo Well Field Ground Water Contamination

Location: Tumwater, Thurston County

Contaminants: Tetrachloroethene · Trichloroethene


Pasco Sanitary Landfill

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


Queen City Farms

Location: Maple Valley, King County

Contaminants: Arsenic · 1,2-Dichloroethene · PCBs · Trichloroethene


Quendall Terminal

Location: Renton, King County

Contaminants: Creosote


Seattle Municipal Landfill (Kent Highlands)

Location: Kent, King County

Contaminants: Heavy Metals · Toluene · Trichloroethene · Vinyl Chloride · Xylenes


Western Processing Co., Inc.

Location: Kent, King County

Contaminants: Heavy Metals · PCBs · Phenols · VOCs


Wyckoff Co./Eagle Harbor

Location: Bainbridge Island, Kitsap County

Contaminants: Dioxins · PAHs · Pentachlorophenol


Deleted Sites

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ALCOA (Vancouver Smelter)

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


Fort Lewis (Landfill No. 5)

Location: Tacoma, Pierce County

Contaminants: Heavy Metals · SVOCs · VOCs

Deleted: 1995


Frontier Hard Chrome, Inc.

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


Hanford 1100-Area (USDOE)

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


Northside Landfill

Location: Spokane, Spokane County

Contaminants: Tetrachloroethene · Trichloroethene

Deleted: 2020


Northwest Transformer

Location: Everson, Whatcom County

Contaminants: PCBs

Deleted: 1999


Northwest Transformer(South Harkness St)

Location: Everson, Whatcom County

Contaminants: Arsenic · Cadmium · Lead · PCBs

Deleted: 1997


Old Inland Pit

Location: Spokane, Spokane County

Contaminants: Heavy Metals

Deleted: 1999


Pesticide Lab (Yakima)

Location: Yakima, Yakima County

Contaminants: Pesticides

Deleted: 1993


Port Hadlock Detachment (USNAVY)

Location: Indian Island, Jefferson County

Contaminants: Heavy Metals · Pesticides

Deleted: 2005


Silver Mountain Mine

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


Toftdahl Drums

Location: Brush Prairie, Clark County

Contaminants: Heavy Metals · PCBs

Deleted: 1988


Tulalip Landfill

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


Yakima Plating Co.

Location: Yakima, Yakima County

Contaminants: Copper · Lead · Zinc

Deleted: 1994