All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mahaffey Cowlitz County |
49 | 0 | 0 | |
|
New Horizons Yakima County |
49 | 0 | 0 | |
|
Norwest Mobile Home Park King County |
49 | 0 | 0 | |
|
Onecho Bible Church Whitman County |
49 | 0 | 0 | |
|
Palmer Lake Land Company Okanogan County |
49 | 0 | 0 | |
|
Teamsters 313 Rec Area Mason County |
49 | 1 | 0 | |
|
141st Ave Kpn 661 Pierce County |
48 | 0 | 0 | |
|
Agate Beach Mason County |
48 | 0 | 0 | |
|
Alamo Orchard CO Pateros Okanogan County |
48 | 2 | 0 | |
|
Blue Sky Country Farms Spokane County |
48 | 0 | 0 | |
|
Brianwood Kitsap County |
48 | 1 | 0 | |
|
Brutus Water System Island County |
48 | 0 | 0 | |
|
Burbank Ranch Housing Kittitas County |
48 | 2 | 1 | |
|
Black Star Ranch Farmworker Housing Yakima County |
48 | 0 | 0 | |
|
Bradley House, the Yakima County |
48 | 0 | 0 | |
|
Cascade MHP Lewis County |
48 | 1 | 0 | |
|
Clerget 253 Pierce County |
48 | 0 | 0 | |
|
Cliffdell Summer Homes Assn Yakima County |
48 | 1 | 0 | |
|
Columbia Crest Estates Cowlitz County |
48 | 0 | 0 | |
|
Cornerstone Estates 606 Thurston County |
48 | 1 | 1 | |
|
Cowiche Water Association Yakima County |
48 | 1 | 0 | |
|
Coombs Ranch Yakima County |
48 | 0 | 0 | |
|
Early Bird Orchard #3 Twh WS Grant County |
48 | 0 | 0 | |
|
Eilers Housing Grant County |
48 | 0 | 0 | |
|
Gateway Inn Pierce County |
48 | 1 | 0 | |
|
Glenwood Farms 2 West Kitsap County |
48 | 0 | 0 | |
|
Island County Maxwelton Park Island County |
48 | 1 | 0 | |
|
Johnson Creek Water Users Assn Okanogan County |
48 | 0 | 0 | |
|
Judel Marketing International Inc Franklin County |
48 | 0 | 0 | |
|
Marys Corner Medical Clinic Lewis County |
48 | 0 | 0 | |
|
Matson Mattawa Campus Grant County |
48 | 1 | 0 | |
|
Meadow Park Water System Grant County |
48 | 1 | 0 | |
|
North Cascades Env Learning Center Whatcom County |
48 | 0 | 0 | |
|
Northside Community Church Whatcom County |
48 | 0 | 0 | |
|
Pace International Yakima County |
48 | 0 | 0 | |
|
Pace International Wapato · County |
48 | 2 | 1 | |
|
Pit Water CO 328 Grays Harbor County |
48 | 0 | 0 | |
|
Port Susan Terrace Water Island County |
48 | 0 | 0 | |
|
R & P Rentals Grant County |
48 | 0 | 0 | |
|
Rainwood Thurston County |
48 | 0 | 0 | |
|
Riverside Water Dist #1 Snohomish County |
48 | 3 | 0 | |
|
Rivervale Water Assn Spokane County |
48 | 0 | 0 | |
|
Rizzuti Farms Grant County |
48 | 1 | 0 | |
|
Roxbury Farmworker Housing Grant County |
48 | 0 | 0 | |
|
Scandialand Mobile Home Park Kitsap County |
48 | 0 | 0 | |
|
Seventh Heaven Country Club Snohomish County |
48 | 1 | 0 | |
|
Spring Creek National Fish Hatchery Skamania County |
48 | 2 | 0 | |
|
Sunnyside Water Klickitat County |
48 | 0 | 0 | |
|
Webb Hill Mason County |
48 | 0 | 0 | |
|
Alder Street Water System Island County |
47 | 0 | 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.