All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Stevens CO Pud Clayton Stevens County |
725 | 0 | 0 | |
|
Lynch Cove Mason County |
721 | 0 | 0 | |
|
Sun Cove Public Water System Douglas County |
716 | 0 | 0 | |
|
Jarrell Cove State Park Mason County |
715 | 0 | 0 | |
|
Chelan CO Pud Beebe Park Douglas County |
711 | 0 | 0 | |
|
Larch Corrections Center Clark County |
705 | 0 | 0 | |
|
Lyman Water Department Skagit County |
705 | 0 | 0 | |
|
Ephrata Raceway Park Grant County |
700 | 0 | 0 | |
|
Kittitas County Water District #5 Kittitas County |
700 | 0 | 0 | |
|
Mount Baker School District-Deming Whatcom County |
700 | 0 | 0 | |
|
Packaging Corporation of America Walla Walla County |
700 | 1 | 0 | |
|
Union Mason County |
700 | 0 | 0 | |
|
Oak Park Mason County |
695 | 1 | 0 | |
|
Garfield Water Department Whitman County |
694 | 4 | 0 | |
|
McNeil Island Water Pierce County |
692 | 2 | 1 | |
|
Ocean Breeze Resort Grays Harbor County |
687 | 0 | 0 | |
|
Tolmie State Park Thurston County |
683 | 0 | 0 | |
|
Grandview Condominiums King County |
679 | 2 | 0 | |
|
Wsdp Mt Spokane St Park #3 Spokane County |
679 | 1 | 0 | |
|
Cusick Town of Pend Oreille County |
672 | 1 | 0 | |
|
Griffin School Thurston County |
672 | 1 | 0 | |
|
Forty Nine Degrees North Stevens County |
670 | 2 | 1 | |
|
Chinook Water District Pacific County |
664 | 0 | 0 | |
|
Wilderness Ridge Community Club Snohomish County |
664 | 1 | 0 | |
|
Del Mar Community Service Skagit County |
657 | 0 | 0 | |
|
Great Basin Water Burbank Walla Walla County |
656 | 1 | 0 | |
|
Shadow Mountain Clallam County |
656 | 0 | 0 | |
|
Spencer Spit State Park San Juan County |
655 | 0 | 0 | |
|
South Sound Speedway Thurston County |
654 | 0 | 0 | |
|
Wsdp Riverside SP Orv Area Spokane County |
651 | 0 | 0 | |
|
Harrington City of Lincoln County |
650 | 1 | 0 | |
|
Sand Hill Elementary Mason County |
650 | 1 | 1 | |
|
Three Lakes Water District Chelan County |
650 | 0 | 0 | |
|
Vistaire Water System Island County |
647 | 2 | 0 | |
|
Gee Cee S Truckstop Lewis County |
646 | 1 | 0 | |
|
Fishhook Park Walla Walla County |
645 | 1 | 0 | |
|
Fairfield Town of Spokane County |
643 | 1 | 0 | |
|
Startup Water District Snohomish County |
643 | 0 | 0 | |
|
Washington Soldiers Home Colony Pierce County |
643 | 0 | 0 | |
|
Liberty Bell High School Okanogan County |
642 | 0 | 0 | |
|
Cedar Creek Corrections Center Thurston County |
639 | 0 | 0 | |
|
Vernita Rest Area 1 Benton County |
639 | 0 | 0 | |
|
Clear Lake Rec Area Spokane County |
637 | 0 | 0 | |
|
Jaw Farms INC Okanogan County |
636 | 0 | 0 | |
|
Alderwood Estates Pierce County |
635 | 0 | 0 | |
|
Duck Lake Water Association Okanogan County |
635 | 0 | 0 | |
|
Colton Water Department Whitman County |
632 | 1 | 1 | |
|
Glenwood Water System Klickitat County |
629 | 0 | 0 | |
|
Bywater Bay Jefferson County |
628 | 1 | 0 | |
|
Mountaineers Theater Kitsap Kitsap County |
628 | 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.