Tap WaterIndex

← All states

Tap water quality report

Washington

Across Washington's 2,404 community water suppliers, 1% exceed the EPA lead action level and 13.9% have detectable PFAS.

1%
exceed lead action level
(23/2332 suppliers)
13.9%
PFOA/PFOS detected
(34/244 suppliers)
2,404
water suppliers
Lead by supplier PFAS by supplier

Largest water suppliers

Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the EPA action level. “—” means no lead sample is on file for that supplier.
SupplierCityPopulationLead (p90)
Seattle Public Utilities Seattle 1,161,961 0.0016 mg/L
Tacoma Water Division City of Tacoma 446,170 0.0000 mg/L
Vancouver City of Vancouver 373,047 0.0022 mg/L
Spokane City of Spokane 346,138 0.0020 mg/L
Bellevue City of Bellevue 321,349 —
Alderwood Water District Lynnwood 245,715 0.0280 mg/L
Everett Public Works Dept. City of Everett 215,774 0.0035 mg/L
Kent Water Department Kent 166,421 0.0000 mg/L
Redmond Water System City of Redmond 163,335 0.0020 mg/L
Clark Public Utilities Vancouver 153,526 0.0018 mg/L
Lakehaven Water and Sewer District — 148,809 0.0033 mg/L
Bellingham-Water Division City of Bellingham 141,127 0.0034 mg/L
Olympia City of Olympia 126,966 0.0034 mg/L
Kennewick City of Kennewick 118,164 0.0000 mg/L
Pasco Water Department Pasco 115,102 0.0019 mg/L
Yakima Water Division City of Yakima 112,858 0.0000 mg/L
Skagit County Pud 1 Judy Res Mount Vernon 111,415 0.0000 mg/L
Renton City of Renton 108,091 0.0019 mg/L
Auburn City of Auburn 107,655 0.0022 mg/L
Richland City of Richland 106,499 0.0024 mg/L
Lacey Water Department Lacey 105,178 0.0060 mg/L
Highline Water District Kent 100,170 0.0014 mg/L
Northshore Utility District Kenmore 99,789 0.0360 mg/L
Puyallup City of Puyallup 94,520 0.0027 mg/L
Marysville Utilities Marysville 88,582 0.0020 mg/L
Lakewood Water District Lakewood 82,425 0.0011 mg/L
Sammamish Plateau Water & Sewer Sammamish 79,362 0.0017 mg/L
Soos Creek Water & Sewer District Renton 74,172 —
Bremerton City of Bremerton 72,951 0.0050 mg/L
Kirkland City of Kirkland 69,243 —
Lynnwood City of Lynnwood 68,204 —
Sno Pud 1 - Lake Stevens Everett 67,710 0.0032 mg/L
Woodinville Water District — 66,699 —
Silver Lake Water & Sewer District Bothell 65,033 —
Southwood Tacoma 64,155 0.0016 mg/L
Longview Water Department Longview 57,617 0.0000 mg/L
Covington Water District Kent 56,172 0.0014 mg/L
Tumwater City of Tumwater 51,802 0.0080 mg/L
King County Water District #20 Seattle 48,469 —
Wenatchee City of Wenatchee 43,690 0.0020 mg/L
Issaquah Water System Issaquah 43,584 0.0010 mg/L
Bonney Lake Water Department City Buckley 43,371 0.0024 mg/L
Walla Walla Water Division Walla Walla 42,959 0.0044 mg/L
Nob Hill Water Association Yakima 38,050 0.0000 mg/L
Tukwila Water Department Tukwila 36,298 —
Firgrove Mutual Inc Puyallup 36,168 0.0029 mg/L
Jblm Lewis Joint Base Lewis-Mcchord 35,414 0.0000 mg/L
Silverdale Water Dist 16 Silverdale 35,163 0.0020 mg/L
Spanaway Water Company Spanaway 34,506 0.0024 mg/L
Edmonds City of Edmonds 34,065 —
Parkland Light & Water Company Tacoma 33,775 0.0024 mg/L
Bothell Water City of — 33,643 —
North City Water District Shoreline 32,847 —
Moses Lake City of Moses Lake 32,428 0.0032 mg/L
Camas Municipal Water Sewer System Camas 31,794 0.0015 mg/L
Mukilteo Water & Wastewater Distr — 31,437 —
Pullman Water Department City of Pullman 31,315 0.0021 mg/L
Mercer Island City of Mercer Island 31,057 —
Battle Ground Water Dept City of Battle Ground 30,237 0.0015 mg/L
Arlington City of Arlington 29,508 0.0000 mg/L
Fife Dept of Public Works Fife 29,091 0.0020 mg/L
West Sound Utility District #1 Port Orchard 28,930 0.0010 mg/L
Cedar River Water & Sewer District Maple Valley 28,671 0.0000 mg/L
Centralia Public Works - Water — 28,164 0.0000 mg/L
Port Angeles City of Port Angeles 28,067 0.0020 mg/L
Whitworth Water District 2 Mead 26,883 0.0013 mg/L
East Wenatchee Water District — 26,519 0.0000 mg/L
Mountlake Terrace City of — 26,402 —
Anacortes City of Mount Vernon 25,109 0.0011 mg/L
Cross Valley Water District Snohomish 24,695 0.0031 mg/L
Vera Water & Power Spokane Valley 24,692 0.0208 mg/L
North Perry Ave Water District Bremerton 24,402 0.0010 mg/L
Lake Meridian Water District Kent 24,231 0.0000 mg/L
Oak Harbor City of — 23,675 0.0012 mg/L
King County Water District #49 Burien 23,492 —
Monroe Water System Monroe 23,467 —
Enumclaw Water Department Enumclaw 23,276 0.0015 mg/L
Aberdeen City of Aberdeen 22,867 0.0000 mg/L
Pud #1 of Asotin County Clarkston 21,930 0.0035 mg/L
King County Water District #125 Seattle 21,904 —
Washington State University Pullman 21,506 0.0049 mg/L
Washougal City of Washougal 21,441 0.0027 mg/L
West Richland City of West Richland 21,231 0.0000 mg/L
Ridgefield Public Works Ridgefield 21,225 0.0021 mg/L
Consolidated Irrig Dist 19 System 2 Greenacres 21,220 0.0013 mg/L
Ellensburg Water Dept Ellensburg 20,900 0.0015 mg/L
Snoqualmie Water Snoqualime 20,222 0.0025 mg/L
King County Water District No 90 Renton 20,100 0.0012 mg/L
Lynden Water Department Lynden 20,062 0.0023 mg/L
Ferndale Ferndale 19,305 0.0056 mg/L
Summit Water & Supply Co Tacoma 19,125 0.0023 mg/L
Spo Co Water Dist 3 Sys 1 Spokane 19,035 0.0016 mg/L
Modern Electric Water Co Spokane 18,487 0.0000 mg/L
Poulsbo City of Poulsbo 18,400 0.0010 mg/L
Olympic View Water & Sewer District Edmonds 17,784 0.0017 mg/L
Stanwood Water Dept City of — 17,586 0.0016 mg/L
Yelm City of Yelm 17,355 0.0019 mg/L
Sunnyside City of Sunnyside 17,194 0.0014 mg/L
Eastern Washington University Cheney 17,108 0.0065 mg/L
Port Townsend City of Port Townsend 17,053 0.0030 mg/L