All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Quilcene Jefferson County |
119 | 1 | 0 | |
|
Ross Lake Resort Whatcom County |
119 | 0 | 0 | |
|
Yak CO Gala Estates Water System Yakima County |
119 | 2 | 0 | |
|
Hillview Mobile Community LLC Benton County |
118 | 0 | 0 | |
|
JD Groom Island County |
118 | 1 | 0 | |
|
Three Fingers Mason County |
118 | 0 | 0 | |
|
Twanoh Heights Community Club Mason County |
118 | 0 | 0 | |
|
Viewside Community Kitsap County |
118 | 1 | 0 | |
|
Orting 15 Pierce County |
117 | 0 | 0 | |
|
Pse Wild Horse Operations Bldg Kittitas County |
117 | 0 | 0 | |
|
Trails End King County |
117 | 0 | 0 | |
|
Camp Koinonia Kittitas County |
116 | 0 | 0 | |
|
Cedar Lynn Water Assoc Whatcom County |
116 | 0 | 0 | |
|
Minter Beach Estates Pierce County |
116 | 0 | 0 | |
|
Whispering Pines Homeowners Coop Island County |
116 | 1 | 0 | |
|
Ccao/yfo Complex Yakima County |
115 | 2 | 0 | |
|
Centerville Grade School Klickitat County |
115 | 3 | 0 | |
|
Lake Samish Terrace LLC Whatcom County |
115 | 0 | 0 | |
|
Mallard Cove Clallam County |
115 | 0 | 0 | |
|
Sage Hills Golf Club & RV Resort Grant County |
115 | 2 | 0 | |
|
Seatons Grove Nespelem · County |
115 | 9 | 1 | |
|
Driftwood Acres Maintenance Corp Kittitas County |
114 | 0 | 0 | |
|
Gig Harbor Golf & Country Club Pierce County |
114 | 2 | 0 | |
|
Moxie Community LLC Yakima County |
114 | 0 | 0 | |
|
North Lopez Service San Juan County |
114 | 4 | 0 | |
|
Outback RV Park Thurston County |
114 | 1 | 0 | |
|
Priest Rapids Grant County |
114 | 0 | 0 | |
|
San Juan CO Park San Juan County |
114 | 0 | 0 | |
|
South Bay Thurston County |
114 | 0 | 0 | |
|
Trout Lodge Yakima County |
114 | 0 | 0 | |
|
Aqua Hills Marysville Snohomish County |
113 | 0 | 0 | |
|
Country Club Estates 521 Thurston County |
113 | 0 | 0 | |
|
River Haven Mason County |
113 | 2 | 1 | |
|
Three Ponds Mobile Park & Apts. Pierce County |
113 | 1 | 0 | |
|
Valley View Estates Water Assn Skagit County |
113 | 0 | 0 | |
|
Wsp Fire Training Academy King County |
113 | 0 | 0 | |
|
Bron-Yr-Aur Investments Yakima County |
112 | 0 | 0 | |
|
Eagle Rock Resort Yakima County |
112 | 0 | 0 | |
|
Elgerwood Maintenance Association Island County |
112 | 2 | 0 | |
|
Evergreen Lutheran Church Kitsap County |
112 | 0 | 0 | |
|
Green Gables Resort Snohomish County |
112 | 0 | 0 | |
|
Madrona Community INC Skagit County |
112 | 0 | 0 | |
|
Sandy Point Owners Association Island County |
112 | 1 | 0 | |
|
Zirkle Fruit Paterson Ranch Benton County |
112 | 1 | 0 | |
|
Bush Point Trac Park Island County |
111 | 2 | 0 | |
|
Cherry Park Mason County |
111 | 0 | 0 | |
|
Crumbacher Estates Water System Okanogan County |
111 | 0 | 0 | |
|
Deer Creek Grocery Mason County |
111 | 2 | 0 | |
|
Holly Kitsap County |
111 | 0 | 0 | |
|
Idlewood Community Island County |
111 | 2 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Washington records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.