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Washington

  • 2,223 Utilities

  • Serving: 6,047,000

  • Data available: 2010-2015

  • Contaminants Found: 101

 

EWG's drinking water quality report for Washington shows results of tests conducted by the water utilities in Washington and provided to EWG by the Washington State Department of Health.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in Washington serving over 10,000 people, listed alphabetically. Click the "more" button below to get the full list of utilities serving over 10,000 people.

Large utilities in Washington

UtilityLocationPeople
Served
Alderwood Water DistrictLynnwood, WA171,500
Arlington Water DepartmentArlington, WA14,598
Battle Ground Water DepartmentBattle Ground, WA16,710
Bonney Lake Water DepartmentBonney Lake, WA35,123
Camas Municipal Water Sewer SystemCamas, WA23,020
Cedar River Water & Sewer DistrictMaple Valley, WA24,875
Centralia UtilitiesCentralia, WA15,751
Chelan County PUD 1Wenatchee, WA13,170
City of AberdeenAberdeen, WA16,920
City of AnacortesMount Vernon, WA15,734
City of AuburnAuburn, WA55,258
City of BellevueBellevue, WA142,900
City of Bellingham Water DivisionBellingham, WA90,000
City of Bothell WaterBothell, WA15,268
City of BremertonBremerton, WA53,507
City of EdmondsEdmonds, WA32,381
City of Everett Public Works DepartmentEverett, WA103,000
City of GrandviewGrandview, WA10,922
City of KelsoKelso, WA12,288
City of KennewickKennewick, WA77,347
City of KirklandKirkland, WA40,648
City of LynnwoodLynnwood, WA34,224
City of Mercer IslandMercer Island, WA22,720
City of Moses LakeMoses Lake, WA22,930
City of Mountlake TerraceMountlake Terrace, WA20,090
City of Oak HarborOak Harbor, WA18,716
City of OlympiaOlympia, WA59,550
City of Port AngelesPort Angeles, WA19,038
City of Pullman Water DepartmentPullman, WA25,591
City of PuyallupPuyallup, WA34,030
More

Utilities that accumulated/accrued the most violation points as of October 2015 to September 2018 in Washington

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Walla Walla Water DivisionWalla Walla, WA34,858320
Sunrise Estates Water SystemOthello, WA28180
Coxville Water Association #1Benton City, WA52111
Bc Water Co.Kennewick, WA66240
Columbia Crest EstatesNapavine, WA5535
Surfside HomeownersOcean Park, WA1,40521
Meadowbrook Water AssociationLynden, WA44020
Kontree Apartments Water SystemLynden, WA6020
Hartstene PointeShelton, WA30620
Connell, City ofConnell, WA5,15016
Johnson Creek Water Users AssociationRiverside, WA4815
Boston HarborOlympia, WA88015
Jefferson County Water District #1Port Ludlow, WA28015
Double L Mobile Home ParkFerndale, WA5812
Hartwood Water SystemTacoma, WA9511
Plymouth Water DistrictPasco, WA22211
Spring Point Homeowners AssociationDeer Harbor, WA9011
Stevens Co. PUD - Mission Ridge Water SystemLoon Lake, WA9911
Cherry Blossom Est Mobile Home ParkNapavine, WA20011
Nine Canyon RanchPasco, WA4910
Evergreen ApartmentsNapavine, WA5410
Golden Valley Water AssociationQuincy, WA12810
Woodglen Prd Water SystemFreeland, WA4010
Cypress Country EstatesOthello, WA3310
Devries Road Community AssociationOak Harbor, WA7610
Township 29 Water AssociationOak Harbor, WA3810
Lynden Water DepartmentLynden, WA12,73010
Red Gate Mobile Home ParkShelton, WA2310
Eastlake Water AssociationOroville, WA3510
Parker Spring Acres Water AssocMoses Lake, WA25510

Large utilities that accumulated/accrued the most violation points as of October 2015 to September 2018 in Washington

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Walla Walla Water DivisionWalla Walla, WA34,858320
Lynden Water DepartmentLynden, WA12,73010
City of Moses LakeMoses Lake, WA22,9303
Clark Public UtilitiesVancouver, WA82,0713
Camas Municipal Water Sewer SystemCamas, WA23,0202
Pasco Water DepartmentPasco, WA68,6482
City of SunnysideSunnyside, WA15,8582
Vera Water & PowerVeradale, WA24,6922
Modern Electric Water CompanySpokane, WA18,5601
Longview Water DepartmentLongview, WA40,8781
Spanaway Water CompanySpanaway, WA25,1531
City of TacomaTacoma, WA315,7771
PUD #1 of Asotin CountyClarkston, WA19,2641
City of Redmond Water SystemRedmond, WA60,6501
City of West RichlandWest Richland, WA13,0801
City of Pullman Water DepartmentPullman, WA25,5911
City of RentonRenton, WA62,1001
Summit Water & Supply CompanyTacoma, WA15,5001
Whitworth Water District 2Spokane, WA26,8331
JBLM LewisJoint Base Lewis-mccord, WA29,1151
Firgrove Mutual IncPuyallup, WA23,7471
Lakewood Water DistrictLakewood, WA69,7051
Cross Valley Water DistrictSnohomish, WA17,2801
City of GrandviewGrandview, WA10,9221
Ellensburg Water DepartmentEllensburg, WA18,3701
Southwood Water SystemTacoma, WA35,2001
Spokane County Water District 3, Sys 2Spokane, WA11,5551
Parkland Light & Water CompanyTacoma, WA25,0501
City of VancouverVancouver, WA231,0001

Contaminants found in Washington above health guidelines

Found above health guidelinesFound
Contaminant# of UtilitiesPeople Served# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
6385,450,7736925,582,215

Bromodichloromethane
5805,343,6305815,344,988

Chromium (hexavalent)
2555,185,8082585,213,152

Chloroform
5315,115,7375895,376,915

Dibromochloromethane
4844,315,7244864,474,372

Trichloroacetic acid
3274,113,9293364,241,289

Dichloroacetic acid
3334,034,5113594,512,534

Arsenic
4322,310,7374322,310,737

Radium-228
3631,042,6403651,042,797

Bromoform
221752,8272942,209,681

Radon
10284,98710284,987

Thallium
6105,9038108,229

Chlorate
596,4312014,312,815

Strontium-90
377,714377,714

Tetrachloroethylene (perchloroethylene)
675,018675,018

Manganese
9866,6234382,702,822

Perfluorooctanoic acid (PFOA)
360,471360,471

Nitrate
9552,2261,4135,219,874

Nitrate and nitrite
2039,5233512,142,546

Perfluorononanoic acid (PFNA)
122,926122,926

Perfluorohexane sulfonate (PFHXS)
122,926122,926

Perfluoroheptanoic acid (PFHPA)
122,926252,041

Perfluorooctane sulfonate (PFOS)
122,926122,926

Radium-226
1815,6872053,232

Trichloroethylene
33,87022558,515

Uranium
73,08294,095

1,2-Dichloropropane
11,16511,165

Cadmium
23152315

Vanadium
1902485,041,483

Chloromethane
15328156,251

Antimony
14052,506

Contaminants found in Washington above legal limits