All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Tahuyeh Lake Community Club Kitsap County |
560 | 0 | 0 | |
|
Bloedel Reserve Kitsap County |
559 | 0 | 0 | |
|
Dungeness Heights Clallam County |
558 | 0 | 0 | |
|
Horn School Rest Area Whitman County |
557 | 1 | 0 | |
|
Oasis Water Corporation Benton County |
556 | 0 | 0 | |
|
Rainier School Pierce County |
556 | 0 | 0 | |
|
Green Tank Irr District 11 Walla Walla County |
553 | 0 | 0 | |
|
Silver Lake Park Main Campground Whatcom County |
553 | 1 | 0 | |
|
Klickitat Water System Klickitat County |
551 | 0 | 0 | |
|
Blueberries Wapato · County |
550 | 2 | 1 | |
|
Crescent Park 355 Pierce County |
550 | 0 | 0 | |
|
Southworth Elementary Thurston County |
550 | 1 | 0 | |
|
Stevens CO Pud Valley Stevens County |
550 | 0 | 0 | |
|
Beacon Rock State Park Boat Launch Skamania County |
549 | 1 | 0 | |
|
Foxhall Thurston County |
549 | 0 | 0 | |
|
Club Green Meadows Clark County |
545 | 0 | 0 | |
|
Satsop Business Park Grays Harbor County |
544 | 0 | 0 | |
|
Kanaskat-Palmer State Park King County |
543 | 0 | 0 | |
|
Brewster Flat Domestic Water Assn Okanogan County |
542 | 0 | 0 | |
|
Kachess Campground/cle Elum RD Kittitas County |
542 | 0 | 0 | |
|
South Cle Elum Water Dept Kittitas County |
541 | 0 | 0 | |
|
Hamilton Water Department Skagit County |
540 | 0 | 0 | |
|
Inchelium Water District Ferry County |
540 | 0 | 0 | |
|
Old Settlers Water Association Whatcom County |
540 | 1 | 0 | |
|
Sandy Hook Yacht Club Estates Island County |
540 | 2 | 1 | |
|
Shore Acres Water Company Pierce County |
540 | 0 | 0 | |
|
Madrona Beach Comm Water System Island County |
539 | 1 | 0 | |
|
Bluewood Ski Area Columbia County |
532 | 1 | 0 | |
|
Stevens CO Pud Spokane Lake Park Spokane County |
532 | 1 | 0 | |
|
Burbank Irrigation District 4 Walla Walla County |
527 | 0 | 0 | |
|
Zebras Aqueous Substance Thurston County |
526 | 0 | 0 | |
|
Wellpinit Wellpinit · County |
525 | 6 | 2 | |
|
Bethel Green Acres Water Assn Pierce County |
522 | 0 | 0 | |
|
Prescott Town of Walla Walla County |
522 | 1 | 0 | |
|
Great Basin Water Kiona Benton County |
520 | 1 | 0 | |
|
Dry Falls State Park Grant County |
519 | 0 | 0 | |
|
Mt. Vista Dungeness Golf Course Sequim · County |
517 | 3 | 0 | |
|
Rolling Firs Evergreen Terrace Thurston County |
514 | 0 | 0 | |
|
Battle Point Park Kitsap County |
512 | 0 | 0 | |
|
Lower Elwha Valley Port Angeles · County |
511 | 0 | 0 | |
|
MT Adams Country Club Toppenish · County |
511 | 1 | 0 | |
|
Kittitas County Water District #4 Kittitas County |
510 | 1 | 0 | |
|
Nespelem Water Dept Okanogan County |
510 | 0 | 0 | |
|
Jones Island State Park San Juan County |
509 | 0 | 0 | |
|
Stevens CO Pud West Shore Spokane County |
505 | 0 | 0 | |
|
Adams County Fair Adams County |
503 | 2 | 0 | |
|
Zekes Drive-In Snohomish County |
502 | 0 | 0 | |
|
Deming Water Assoc. Whatcom County |
501 | 0 | 0 | |
|
Brooks Memorial SP Admin Klickitat County |
500 | 0 | 0 | |
|
Columbia View Water System Walla Walla County |
500 | 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.