All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
McCoy Lake Wellpinit · County |
325 | 6 | 2 | |
|
Machias Ridge Homeowners Assoc. Snohomish County |
324 | 0 | 0 | |
|
Skykomish Water Dept King County |
324 | 0 | 0 | |
|
Deep Lake State Park Grant County |
323 | 0 | 0 | |
|
Collins Lake Community Club Mason County |
322 | 0 | 0 | |
|
Rustlewood Mason County |
322 | 0 | 0 | |
|
Bjs Food and Fuel 2 Chelan County |
321 | 0 | 0 | |
|
Rainbow Falls State Park Lewis County |
321 | 0 | 0 | |
|
Treasure Island Country Club Mason County |
321 | 0 | 0 | |
|
Campbell Farm Wapato · County |
320 | 3 | 1 | |
|
Kiana Lodge Suquamish · County |
320 | 1 | 0 | |
|
Leif Erikson Rec Assoc Skagit County |
320 | 0 | 0 | |
|
Rocky Point Community Club Island County |
320 | 1 | 0 | |
|
Rosemount Pierce County |
320 | 0 | 0 | |
|
Valley Housing LLC Wapato · County |
320 | 0 | 0 | |
|
Swantown Water District Island County |
318 | 2 | 1 | |
|
Clear Lake Water District Pierce County |
317 | 2 | 0 | |
|
Loveland Mobile Estates Pierce County |
317 | 0 | 0 | |
|
Port of Vancouver Clark County |
317 | 1 | 0 | |
|
Purdy Shopping Center Pierce County |
317 | 0 | 0 | |
|
Curlew Water & Sewer District Ferry County |
316 | 0 | 0 | |
|
West Mesa Domestic Water Assn Franklin County |
316 | 2 | 0 | |
|
Panhandle Lake 4h Camp Mason County |
315 | 0 | 0 | |
|
Springdale Town of Stevens County |
315 | 3 | 0 | |
|
Sunwood Graham Pierce County |
315 | 2 | 0 | |
|
Taylor Station Mason County |
314 | 0 | 0 | |
|
Huff and Puff Drive in Lewis County |
313 | 1 | 0 | |
|
Cowlitz Food and Fuel Lewis County |
312 | 1 | 0 | |
|
Stratford Road Estates Grant County |
312 | 2 | 0 | |
|
Beachcomber H2o CO Island County |
310 | 1 | 0 | |
|
Camano Laguna Vista Water Assoc Island County |
310 | 0 | 0 | |
|
Canyon Village Water System INC Benton County |
310 | 0 | 0 | |
|
Evergreen Elementary School Pierce County |
310 | 0 | 0 | |
|
Steamboat Square Thurston County |
310 | 1 | 0 | |
|
Ocean Shores Outdoor Club Grays Harbor County |
309 | 0 | 0 | |
|
Paradise Estates Water Dept INC Lewis County |
309 | 0 | 0 | |
|
Sunshine Thurston County |
309 | 0 | 0 | |
|
Cedar Springs Camp Snohomish County |
308 | 3 | 0 | |
|
Green Acres Orchard Grant County |
308 | 0 | 0 | |
|
Haven by the Sea Grays Harbor County |
308 | 1 | 0 | |
|
Marblemount Ranger Station Skagit County |
308 | 0 | 0 | |
|
Terry Lane 354 Pierce County |
308 | 0 | 0 | |
|
McDonald Well Yakima County |
307 | 0 | 0 | |
|
Cama Beach State Park Island County |
306 | 0 | 0 | |
|
Cattlemens Livestock Exchange Thurston County |
306 | 0 | 0 | |
|
Laffertys Southshore Water System Chelan County |
306 | 0 | 0 | |
|
Riverside SD Chattaroy Elementary Spokane County |
306 | 0 | 0 | |
|
Spo CO Fish Lake Park Spokane County |
306 | 0 | 0 | |
|
Wanapum Village Grant County |
305 | 1 | 0 | |
|
Gifford Campground Stevens County |
304 | 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.