All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Theodore Hoss Sports Complex Thurston County |
304 | 1 | 0 | |
|
Littlerock Grocery Thurston County |
303 | 0 | 0 | |
|
Port Gamble Kitsap County |
303 | 0 | 0 | |
|
South Lewis County Regional Park Lewis County |
303 | 0 | 0 | |
|
Topp Mart Toppenish · County |
303 | 1 | 1 | |
|
Touchet School Walla Walla County |
303 | 1 | 0 | |
|
Artesian Water District 8 Walla Walla County |
302 | 4 | 0 | |
|
Crystal River Ranch Assoc Pierce County |
302 | 0 | 0 | |
|
Fordyce Water Assn Klickitat County |
302 | 1 | 1 | |
|
Parkwood Manor MHP Island County |
301 | 0 | 0 | |
|
Schaefer County Park Lewis County |
301 | 0 | 0 | |
|
Donnas Mini Market Water System Snohomish County |
300 | 0 | 0 | |
|
Hillcrest Water Users Assn Grant County |
300 | 1 | 0 | |
|
Homestead Manufactured Housing Benton County |
300 | 2 | 0 | |
|
Kens Korner Island County |
300 | 2 | 0 | |
|
Lewis River Golf Course Cowlitz County |
300 | 0 | 0 | |
|
Mariners Cove Beach Club INC Island County |
300 | 2 | 0 | |
|
Oalc Davenport Lincoln County |
300 | 1 | 0 | |
|
Parker County |
300 | 4 | 0 | |
|
Spokane River Rest Area Spokane County |
300 | 0 | 0 | |
|
Sunnyview Park Yakima County |
300 | 0 | 0 | |
|
Selah Hills Homeowners Cooperative Yakima County |
300 | 0 | 0 | |
|
Tri-City Water District #45 Benton County |
300 | 0 | 0 | |
|
Andrews First Thurston County |
299 | 0 | 0 | |
|
Arlington Lds Church Snohomish County |
299 | 0 | 0 | |
|
Conconully City Well Okanogan County |
299 | 0 | 0 | |
|
Gull Harbor Mercantile INC Thurston County |
299 | 0 | 0 | |
|
Stanwood Deli & Gas Snohomish County |
299 | 1 | 0 | |
|
Driftwood Heights Association Island County |
298 | 1 | 0 | |
|
Colony Surf Water Supply Mason County |
297 | 1 | 0 | |
|
Cro Farms INC Douglas County |
297 | 0 | 0 | |
|
Lacrosse Town of Whitman County |
297 | 2 | 0 | |
|
Kings Way Foursquare Clallam County |
296 | 1 | 0 | |
|
Martha Boardman Wellpinit · County |
295 | 6 | 0 | |
|
Sun Meadows Clallam County |
295 | 1 | 0 | |
|
Midway Mini-Mart Grant County |
293 | 1 | 0 | |
|
Skyline Water System INC Grant County |
293 | 0 | 0 | |
|
South Kitsap Little League Kitsap County |
293 | 1 | 0 | |
|
Desert Canyon Domestic Water System Douglas County |
292 | 1 | 0 | |
|
Palouse Falls State Park Franklin County |
292 | 0 | 0 | |
|
Bauers Landing Lodge Douglas County |
291 | 2 | 0 | |
|
New Utsalady Water System INC Island County |
291 | 2 | 0 | |
|
Cougar Crest Cowlitz County |
290 | 0 | 0 | |
|
Hunters Water District Stevens County |
290 | 5 | 1 | |
|
Lineage Logistics Benton County |
290 | 0 | 0 | |
|
McKees Beach Assoc Snohomish County |
290 | 0 | 0 | |
|
Northport Water System Stevens County |
290 | 1 | 0 | |
|
Peterson Farms Cowlitz County |
290 | 0 | 0 | |
|
Shorecrest Pierce County |
289 | 0 | 0 | |
|
Phillips 66 Company Whatcom County |
288 | 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.