All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Glenwood Little League Clark County |
500 | 0 | 0 | |
|
Highland High School Yakima County |
500 | 0 | 0 | |
|
Home Valley Water District Skamania County |
500 | 0 | 0 | |
|
Mount Baker Water Association Whatcom County |
500 | 1 | 0 | |
|
Northwood Casino Lynden · County |
500 | 5 | 0 | |
|
Pasco Port of 210 Franklin County |
500 | 3 | 0 | |
|
Sackman Suquamish · County |
500 | 2 | 0 | |
|
Sunvista Sunlight Beach HOA Island County |
500 | 1 | 0 | |
|
Thorp Arco Am/pm Kittitas County |
500 | 1 | 0 | |
|
Vancouver Lake Park Clark County |
500 | 0 | 0 | |
|
Silver Hawk Thurston County |
499 | 0 | 0 | |
|
Sea View Water LLC Island County |
496 | 1 | 0 | |
|
Dallesport Industrial Park Klickitat County |
495 | 0 | 0 | |
|
Lagoon Point Water District Island County |
495 | 1 | 0 | |
|
Mesa Water Department Franklin County |
495 | 1 | 0 | |
|
Newaukum Hill Water Assn Lewis County |
493 | 2 | 0 | |
|
Quail Run 667 Pierce County |
493 | 0 | 0 | |
|
South Fox Island Water System Pierce County |
493 | 0 | 0 | |
|
Oakesdale Town of Whitman County |
492 | 0 | 0 | |
|
P and G Orchards Camp 2 Okanogan County |
489 | 1 | 0 | |
|
South Prairie Town of Pierce County |
489 | 0 | 0 | |
|
Countrywood Estates 680 Thurston County |
488 | 0 | 0 | |
|
Dismal Nitch Rest Area Pacific County |
488 | 1 | 0 | |
|
Dungeness Meadows Clallam County |
488 | 1 | 0 | |
|
Endicott Water Dept Whitman County |
488 | 1 | 0 | |
|
Roosevelt Lake Ranch Lincoln County |
487 | 1 | 0 | |
|
Liberty School District #362 Spokane County |
486 | 1 | 0 | |
|
Stuart IS State Park San Juan County |
486 | 0 | 0 | |
|
Spo CO Water Dist 3 Sys 5 Spokane County |
485 | 0 | 0 | |
|
Jacks Resort Douglas County |
482 | 0 | 0 | |
|
S & I Pierce County |
482 | 0 | 0 | |
|
Twanoh Falls Beach Club Mason County |
481 | 2 | 0 | |
|
Arlenes Addition Walla Walla County |
480 | 0 | 0 | |
|
Classic Heights Thurston County |
480 | 0 | 0 | |
|
Two Rivers Resort Wellpinit · County |
480 | 6 | 2 | |
|
Black Lake Bible Camp & Conf Ctr Thurston County |
477 | 1 | 0 | |
|
Saratoga Water District Island County |
477 | 2 | 0 | |
|
Benton County Two Rivers Park Benton County |
474 | 1 | 0 | |
|
Spar Restaurant Thurston County |
474 | 1 | 0 | |
|
Wellpinit School County |
473 | 5 | 0 | |
|
Louie Joe Water Association Whatcom County |
471 | 0 | 0 | |
|
Wynoochee Wildwood Park Grays Harbor County |
471 | 1 | 0 | |
|
Pomona View Mobile Park Yakima County |
470 | 0 | 0 | |
|
Sugarloaf Water System King County |
468 | 0 | 0 | |
|
Chamberlain Lake Rest Area Klickitat County |
467 | 1 | 0 | |
|
Schafer State Park Mason County |
465 | 0 | 0 | |
|
Monterra Clallam County |
464 | 0 | 0 | |
|
Kittitas County Water District #7 Kittitas County |
463 | 0 | 0 | |
|
Lake Alyson Snohomish County |
463 | 1 | 0 | |
|
Littlerock Elementary Thurston County |
463 | 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.