All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Crow Butte Park Benton County |
141 | 1 | 0 | |
|
Race Lagoon Heights Association Island County |
141 | 3 | 0 | |
|
Race Lagoon Water Association Island County |
141 | 1 | 0 | |
|
Treveri Yakima County |
141 | 2 | 0 | |
|
Valley High Park Island County |
141 | 1 | 0 | |
|
View Ranch Estates Water Assn Lewis County |
141 | 0 | 0 | |
|
Arrowhead Ranch Okanogan County |
140 | 0 | 0 | |
|
Decatur Shores Community Assoc San Juan County |
140 | 1 | 0 | |
|
Deschutes Village 683 Thurston County |
140 | 0 | 0 | |
|
Evergreen Mobile Homeowners Co-Op Mason County |
140 | 0 | 0 | |
|
First Baptist Church of Tenino Thurston County |
140 | 0 | 0 | |
|
Flying Horseshoe Guest Ranch Kittitas County |
140 | 0 | 0 | |
|
Forest Hills Water System Pierce County |
140 | 0 | 0 | |
|
Holly Tides Pierce County |
140 | 0 | 0 | |
|
Lakeview Terrace Island County |
140 | 3 | 0 | |
|
North Star Water Assoc Whatcom County |
140 | 0 | 0 | |
|
Old German Baptist Church New Conf Franklin County |
140 | 2 | 0 | |
|
River Bend Water System Pend Oreille County |
140 | 0 | 0 | |
|
Spokane Hutterian Brethren Spokane County |
140 | 1 | 0 | |
|
Sunset Ridge Community Assn Island County |
140 | 1 | 0 | |
|
Agotaras Water System Pierce County |
138 | 0 | 0 | |
|
Cherry Creek King County |
138 | 1 | 0 | |
|
Diamond Springs Water Association King County |
138 | 0 | 0 | |
|
Golden Valley Water Assn Grant County |
138 | 1 | 0 | |
|
Grandview Valley Estates Thurston County |
138 | 0 | 0 | |
|
Mariani Water System INC King County |
138 | 0 | 0 | |
|
Hard Rain Cafe & Mercantile Jefferson County |
137 | 1 | 0 | |
|
Hilltop Water Owners Association Whatcom County |
137 | 0 | 0 | |
|
Long Beach Water District Island County |
137 | 0 | 0 | |
|
Minter Creek Rapids Kitsap County |
137 | 0 | 0 | |
|
Camp ST Albans Girl Scout Mason County |
136 | 0 | 0 | |
|
Congdon Orchards INC Yakima County |
136 | 0 | 0 | |
|
Lamont Water System Whitman County |
136 | 0 | 0 | |
|
Premium Quality Hay & Feed Lewis County |
136 | 1 | 0 | |
|
Tall Chief Resort King County |
136 | 0 | 0 | |
|
American Heritage Campgrounds Thurston County |
135 | 0 | 0 | |
|
Clear Lake CG South/naches RD Yakima County |
135 | 1 | 0 | |
|
Eagle Valley Water System Skagit County |
135 | 1 | 0 | |
|
Fern Prairie Market Clark County |
135 | 0 | 0 | |
|
Friar Creek Water System Snohomish County |
135 | 0 | 0 | |
|
Lakeview Terrace MHP Lincoln County |
135 | 0 | 0 | |
|
Middle Waddell Campground Thurston County |
135 | 1 | 0 | |
|
North Ridge Water Corp Snohomish County |
135 | 0 | 0 | |
|
Pasco Heights Domestic Water Assn Franklin County |
135 | 1 | 0 | |
|
Ranch House Bbq Thurston County |
135 | 2 | 0 | |
|
South Hills Water Users Assn INC Yakima County |
135 | 1 | 0 | |
|
59er Diner Chelan County |
134 | 1 | 0 | |
|
Camp Thunderbird Boy Scouts Thurston County |
134 | 1 | 0 | |
|
Gold Beach Aviation Grays Harbor County |
134 | 0 | 0 | |
|
Kathann Estates Water Snohomish County |
134 | 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.