States / WA
Washington
69
Superfund NPL sites
68
water systems with PFAS detections
34
systems above a final limit
16.1M lb
reported 2024 releases
Superfund NPL sites, by county
- none
- 1 to 1
- 2 to 3
- 4 to 6
- 7 or more
Counties
| County | NPL | Cleanup sites | PFAS systems | TRI facilities | Open tank releases |
|---|---|---|---|---|---|
| King County | 10 | 25 | 9 | 61 | 1,041 |
| Pierce County | 8 | 63 | 20 | 31 | 280 |
| Snohomish County | 1 | 9 | 2 | 24 | 236 |
| Spokane County | 11 | 17 | 11 | 30 | 55 |
| Clark County | 7 | 10 | 4 | 20 | 73 |
| Thurston County | 1 | 4 | 3 | 5 | 64 |
| Kitsap County | 8 | 12 | 4 | 3 | 85 |
| Yakima County | 3 | 11 | 0 | 10 | 110 |
| Whatcom County | 3 | 6 | 1 | 15 | 118 |
| Benton County | 4 | 8 | 3 | 10 | 33 |
| Skagit County | 0 | 4 | 1 | 12 | 83 |
| Cowlitz County | 0 | 2 | 1 | 17 | 55 |
| Grant County | 1 | 7 | 1 | 9 | 18 |
| Franklin County | 1 | 4 | 0 | 9 | 9 |
| Island County | 2 | 4 | 1 | 2 | 18 |
| Lewis County | 3 | 7 | 1 | 8 | 86 |
| Chelan County | 0 | 3 | 0 | 3 | 13 |
| Clallam County | 1 | 8 | 2 | 4 | 39 |
| Grays Harbor County | 0 | 3 | 0 | 5 | 68 |
| Mason County | 0 | 0 | 1 | 1 | 27 |
| Walla Walla County | 0 | 3 | 0 | 5 | 16 |
| Stevens County | 2 | 12 | 1 | 5 | 16 |
| Whitman County | 0 | 0 | 0 | 3 | 28 |
| Kittitas County | 0 | 1 | 0 | 0 | 38 |
| Douglas County | 0 | 1 | 0 | 1 | 4 |
| Okanogan County | 1 | 17 | 1 | 0 | 10 |
| Jefferson County | 1 | 3 | 1 | 1 | 25 |
| Pacific County | 0 | 3 | 0 | 0 | 25 |
| Klickitat County | 0 | 1 | 0 | 1 | 16 |
| Asotin County | 0 | 0 | 0 | 1 | 3 |
| Adams County | 0 | 1 | 0 | 2 | 10 |
| San Juan County | 0 | 0 | 0 | 0 | 9 |
| Pend Oreille County | 0 | 3 | 0 | 2 | 4 |
| Skamania County | 1 | 2 | 0 | 0 | 3 |
| Lincoln County | 0 | 3 | 0 | 0 | 7 |
| Ferry County | 0 | 5 | 0 | 1 | 2 |
| Wahkiakum County | 0 | 0 | 0 | 0 | 1 |
| Columbia County | 0 | 0 | 0 | 0 | 1 |
| Garfield County | 0 | 1 | 0 | 0 | 1 |
Superfund sites in Washington
- ALCOA (Vancouver Smelter)Vancouver
- American Crossarm & Conduit Co.Chehalis
- American Lake Gardens/McChord AFBTacoma
- Bangor Naval Submarine BaseSilverdale
- Bangor Ordnance Disposal (USNAVY)Bremerton
- Bonneville Power Administration Ross Complex (USDOE)Vancouver
- Boomsnub/AircoVancouver
- Bremerton GasworksBremerton
- Centralia Municipal LandfillCentralia
- Colbert LandfillSpokane
- Commencement Bay, Near Shore/Tide FlatsPierce County
- Commencement Bay, South Tacoma ChannelTacoma
- Fairchild Air Force Base (4 Waste Areas)Spokane County
- FMC Corp. (Yakima)Yakima
- Fort Lewis (Landfill No. 5)Tacoma
- Fort Lewis Logistics CenterTillicum
- Frontier Hard Chrome, Inc.Vancouver
- General Electric Co. (Spokane Shop)Spokane
- Grain Handling Facility at FreemanFreeman
- Greenacres LandfillSpokane County
- Hamilton Island Landfill (USA/COE)North Bonneville
- Hamilton/Labree Roads Ground Water ContaminationChehalis
- Hanford 100-Area (USDOE)Benton County
- Hanford 1100-Area (USDOE)Benton County
- Hanford 200-Area (USDOE)Benton County
- Hanford 300-Area (USDOE)Benton County
- Harbor Island (Lead)Seattle
- Hidden Valley Landfill (Thun Field)Pierce County
- Jackson Park Housing Complex (USNAVY)Kitsap County
- Kaiser Aluminum (Mead Works)Mead
- LakewoodLakewood
- Lockheed West SeattleSeattle
- Lower Duwamish WaterwaySeattle
- Makah Reservation Warmhouse Beach DumpNeah Bay
- McChord Air Force Base (Wash Rack/Treatment Area)Tacoma
- Mica LandfillMica
- Midnite MineWellpinit
- Midway LandfillKent
- Moses Lake Wellfield ContaminationMoses Lake
- Naval Air Station, Whidbey Island (Ault Field)Whidbey Island
- Naval Air Station, Whidbey Island (Seaplane Base)Whidbey Island
- Naval Undersea Warfare Station (4 Areas)Keyport
- North Market StreetSpokane
- Northside LandfillSpokane
- Northwest TransformerEverson
- Northwest Transformer (South Harkness Street)Everson
- Oeser CoBellingham
- Old Inland PitSpokane
- Old Navy Dump/Manchester Laboratory (USEPA/NOAA)Manchester
- Pacific Car & Foundry Co.Renton
- Pacific Sound ResourcesSeattle
- Palermo Well Field Ground Water ContaminationTumwater
- Pasco Sanitary LandfillPasco
- Pesticide Lab (Yakima)Yakima
- Port Hadlock Detachment (USNAVY)Indian Island
- Puget Sound Naval Shipyard ComplexBremerton
- Queen City FarmsMaple Valley
- Quendall TerminalsRenton
- Seattle Municipal Landfill (Kent Highlands)Kent
- Silver Mountain MineLoomis
- Spokane Junkyard/Associated PropertiesSpokane
- Toftdahl DrumsBrush Prairie
- Tulalip LandfillMarysville
- Upper Columbia RiverUpper Columbia River
- Vancouver Water Station #1 ContaminationVancouver
- Vancouver Water Station #4 ContaminationVancouver
- Western Processing Co., Inc.Kent
- Wyckoff Co./Eagle HarborBainbridge Island
- Yakima Plating Co.Yakima