All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sunserra at Crescent Bar Grant County |
1,000 | 2 | 0 | |
|
Underwood Skamania County |
1,000 | 2 | 0 | |
|
Wiley City Fairgrounds Yakima County |
1,000 | 0 | 0 | |
|
Deception Pass SP Rosario Beach Skagit County |
999 | 0 | 0 | |
|
Dockton Water Association King County |
992 | 0 | 0 | |
|
Glacier Springs Water Assn Klickitat County |
992 | 1 | 0 | |
|
Amboy Clark Public Utilities Clark County |
991 | 0 | 0 | |
|
Finley School District #53 Benton County |
990 | 4 | 0 | |
|
Joemma Beach Pierce County |
989 | 1 | 0 | |
|
Odessa Lincoln County |
986 | 5 | 0 | |
|
Vader-Enchanted Valley Lewis County |
985 | 0 | 0 | |
|
Selah CR SB Rest Area Yakima County |
981 | 0 | 0 | |
|
Kayak Point County Park Snohomish County |
978 | 0 | 0 | |
|
Selah CR NB Rest Area Yakima County |
973 | 0 | 0 | |
|
The Buttes Pierce County |
973 | 0 | 0 | |
|
Illahee Oyehut Grays Harbor County |
971 | 0 | 0 | |
|
Twenty Five Mile Creek State Park Chelan County |
970 | 0 | 0 | |
|
Marion Water CO INC Pierce County |
966 | 1 | 0 | |
|
Burton Water Cooperative King County |
964 | 1 | 1 | |
|
Eagle Plaza Truck Stop Lewis County |
962 | 0 | 0 | |
|
Kaiser Alum Trentwood Works Spokane County |
954 | 1 | 0 | |
|
Yak CO Buena Water System Yakima County |
952 | 1 | 0 | |
|
Forest Learning Center Cowlitz County |
951 | 1 | 0 | |
|
Coulee City Town of Grant County |
944 | 1 | 0 | |
|
Winchester WB Rest Area Grant County |
944 | 1 | 0 | |
|
Cape Horn Maintenance Company Skagit County |
940 | 0 | 0 | |
|
Nisqually Commercial Park Thurston County |
940 | 1 | 0 | |
|
General Store Benton County |
939 | 0 | 0 | |
|
Lyle Water System Klickitat County |
938 | 0 | 0 | |
|
Miller Lewis County |
935 | 0 | 0 | |
|
Alder Lake Park Water System Pierce County |
934 | 1 | 0 | |
|
Preston Industrial Park Water Assn King County |
930 | 0 | 0 | |
|
Whitehorse Mercantile Water System Snohomish County |
930 | 1 | 0 | |
|
Sunwood Lakes Homeowners Assoc INC Thurston County |
925 | 0 | 0 | |
|
Long Lake View Est 2 5 Kitsap County |
923 | 1 | 0 | |
|
Puget Island Wahkiakum County |
920 | 0 | 0 | |
|
Lake Cushman System 3 Mason County |
917 | 0 | 0 | |
|
Birch Bay Square Water Operation Whatcom County |
915 | 0 | 0 | |
|
Country/eldorado Water System Pierce County |
915 | 0 | 0 | |
|
Lake Lawrence Thurston County |
914 | 0 | 0 | |
|
Tribal Complex Wapato · County |
907 | 3 | 0 | |
|
Lind Town of Adams County |
903 | 1 | 0 | |
|
Pioneer School District Mason County |
903 | 1 | 0 | |
|
Freeman School Dist #358 Spokane County |
900 | 0 | 0 | |
|
Meridian School Complex Whatcom County |
900 | 1 | 0 | |
|
Scatchet Head Water District Island County |
900 | 2 | 0 | |
|
White Swan Wapato · County |
900 | 3 | 0 | |
|
Roosevelt Park Klickitat County |
899 | 1 | 0 | |
|
Shoalwater Bay Tokeland · County |
898 | 0 | 0 | |
|
Solmar Water Clallam County |
895 | 1 | 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.