Water quality by city
Water quality in Washington
EPA drinking-water records for 563 public water systems across 199 Washington cities — the contaminants found and the certified filters that remove them. Pick your city for its full report.
Know your ZIP? Go straight to your water report.
Check by ZIP → Port Orchard ·PFAS 33 systems Coupeville ·PFAS 21 systems Yakima 19 systems Spokane ·PFAS 14 systems Tacoma ·PFAS 13 systems Moses Lake ·PFAS 12 systems Seattle 12 systems Ferndale 10 systems Kennewick ·PFAS 10 systems Mt Vernon 10 systems Olympia ·PFAS 10 systems Shelton 10 systems Lynden ·PFAS 9 systems Tonasket 9 systems Lacey ·PFAS 8 systems Pasco 8 systems Poulsbo 8 systems Vancouver ·PFAS 8 systems Bellingham 7 systems Kent ·PFAS 7 systems Freeland 6 systems Friday Harbor 6 systems Napavine 6 systems Walla Walla 6 systems Grandview 5 systems Nespelem 5 systems Oak Harbor 5 systems Woodland ·PFAS 5 systems Buckley ·PFAS 4 systems Chehalis 4 systems Chelan 4 systems Cle Elum 4 systems College Place 4 systems Deming 4 systems Ephrata 4 systems Gig Harbor 4 systems Raymond 4 systems Richland ·PFAS 4 systems Silverdale 4 systems Stanwood 4 systems Toppenish 4 systems Wellpinit 4 systems Wenatchee 4 systems Colville 3 systems Montesano 3 systems Mount Vernon ·PFAS 3 systems Puyallup ·PFAS 3 systems Quincy 3 systems Renton ·PFAS 3 systems Sequim ·PFAS 3 systems White Salmon 3 systems Yelm 3 systems Arlington ·PFAS 2 systems Auburn ·PFAS 2 systems Belfair 2 systems Bremerton ·PFAS 2 systems Brewster 2 systems Burbank 2 systems Centralia ·PFAS 2 systems Cheney 2 systems Clinton 2 systems Coulee City 2 systems Eastsound 2 systems Elma 2 systems Everett 2 systems Everson 2 systems Forks 2 systems Goldendale 2 systems Greenacres 2 systems Hoquiam 2 systems Issaquah 2 systems Joint Base Lewis-Mcchord ·PFAS 2 systems Kelso 2 systems Leavenworth 2 systems Lummi Island 2 systems Mattawa 2 systems Medical Lake ·PFAS 2 systems Mesa 2 systems Naches 2 systems Neah Bay 2 systems North Bend 2 systems Northport 2 systems Ocean Park 2 systems Omak ·PFAS 2 systems Othello 2 systems Port Angeles 2 systems Port Ludlow 2 systems Port Townsend ·PFAS 2 systems Pullman 2 systems Redmond ·PFAS 2 systems Republic 2 systems Sammamish ·PFAS 2 systems Snohomish ·PFAS 2 systems Spokane Valley ·PFAS 2 systems Taholah 2 systems Tumwater ·PFAS 2 systems Vashon 2 systems Waverly 2 systems West Richland 2 systems Aberdeen 1 system Airway ·PFAS 1 system Algona 1 system Amanda Park 1 system Ashford 1 system Bainbridge Island 1 system Battle Ground 1 system Beaver 1 system Benton City ·PFAS 1 system Birch Bay 1 system Black Diamond 1 system Blaine 1 system Bothell 1 system Camas ·PFAS 1 system Carlsborg ·PFAS 1 system Cashmere 1 system Castle Rock 1 system Chattaroy 1 system Clarkston 1 system Colfax 1 system Concrete 1 system Connell 1 system Cusick 1 system Davenport 1 system Dayton 1 system Deer Harbor 1 system Deer Park ·PFAS 1 system Dupont 1 system East Wenatchee 1 system Eatonville 1 system Edgewood ·PFAS 1 system Edmonds 1 system Ellensburg 1 system Enumclaw 1 system Fairchild Afb ·PFAS 1 system Fall City 1 system Federal Way ·PFAS 1 system Fife 1 system Fircrest ·PFAS 1 system Granger 1 system Granite Falls 1 system Hoodsport ·PFAS 1 system Joyce 1 system Kalama 1 system Kenmore 1 system Lakewood ·PFAS 1 system Langley 1 system Liberty Lake ·PFAS 1 system Long Beach 1 system Longview 1 system Loon Lake ·PFAS 1 system Lynnwood 1 system Manchester 1 system Manson 1 system Maple Falls 1 system Maple Valley ·PFAS 1 system Marysville 1 system Mazama 1 system Mead ·PFAS 1 system Milton ·PFAS 1 system Monroe 1 system Mossyrock 1 system Moxee 1 system Nas Whidbey Island 1 system Newport 1 system Okanogan 1 system Orondo 1 system Oroville 1 system Orting 1 system Oysterville 1 system Pateros 1 system Pe Ell 1 system Prescott 1 system Prosser 1 system Ridgefield 1 system Roslyn 1 system Royal City 1 system Salkum 1 system Selah 1 system Snoqualime 1 system Snoqualmie Pass 1 system Spanaway ·PFAS 1 system Sprague 1 system Steilacoom 1 system Stevenson 1 system Sultan 1 system Sumner 1 system Sunnyside 1 system Tenino 1 system Tulalip 1 system Union Gap 1 system Wapato 1 system Warden 1 system Washougal ·PFAS 1 system Westport 1 system White Swan 1 system Wilbur 1 system Winlock 1 system Winthrop 1 system Zillah 1 system