All water systems in Washington
4,692 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Maberry Packing LLC Whatcom County |
265 | 0 | 0 | |
|
Windust Park Franklin County |
265 | 0 | 0 | |
|
Grasslands Water System Kittitas County |
264 | 0 | 0 | |
|
Kahlotus City of Franklin County |
262 | 4 | 1 | |
|
Whidbey Shores Water System Island County |
262 | 2 | 0 | |
|
Cascade Vista HOA Snohomish County |
260 | 1 | 0 | |
|
Hydro Irrigation District NO 9 Walla Walla County |
260 | 0 | 0 | |
|
Orondo School Douglas County |
260 | 0 | 0 | |
|
Rocky River Road Community Site Nespelem · County |
260 | 8 | 0 | |
|
Sandflat Water Association Okanogan County |
260 | 0 | 0 | |
|
Southside Elementary School Mason County |
260 | 0 | 0 | |
|
Suncrest Plat Water System Okanogan County |
260 | 0 | 0 | |
|
Tamoshan Thurston County |
260 | 1 | 0 | |
|
Woodland Winter Race Track Cowlitz County |
260 | 0 | 0 | |
|
Y-Squalicum Water Assn Whatcom County |
260 | 0 | 0 | |
|
Brinnon General Store Jefferson County |
258 | 0 | 0 | |
|
Conconully SP Boat Launch Okanogan County |
258 | 0 | 0 | |
|
Foothills Community Church Spokane County |
258 | 1 | 0 | |
|
Guide Meridian Water Association Whatcom County |
258 | 0 | 0 | |
|
Cole Pierce County |
257 | 0 | 0 | |
|
Grapeview School Mason County |
257 | 1 | 0 | |
|
Lake Bronson Assoc INC Snohomish County |
257 | 0 | 0 | |
|
Royal Ridges Retreat Lower Camp Clark County |
257 | 0 | 0 | |
|
Surfcrest Properties LLC Grays Harbor County |
256 | 0 | 0 | |
|
Walczak 620 King County |
256 | 0 | 0 | |
|
Parker Spring Acres Water Assoc Grant County |
255 | 1 | 0 | |
|
Pilaguamish Community Club Snohomish County |
255 | 1 | 0 | |
|
Union Food Mart Mason County |
255 | 0 | 0 | |
|
Burlington KOA Skagit County |
254 | 0 | 0 | |
|
Eagle Harbor Marina Kitsap County |
254 | 1 | 0 | |
|
Eason Dan B Thurston County |
254 | 0 | 0 | |
|
Lake Tyee Skagit County |
254 | 0 | 0 | |
|
97 Rock House WS Chelan County |
253 | 1 | 0 | |
|
Cypress Country Estates Franklin County |
253 | 1 | 0 | |
|
South Bay Market and Deli Thurston County |
253 | 1 | 0 | |
|
Stevens CO Pud Addy Stevens County |
253 | 0 | 0 | |
|
Lone Fir Bar and Grill LLC Cowlitz County |
252 | 0 | 0 | |
|
Deer Creek Water Assn/guide South Whatcom County |
251 | 0 | 0 | |
|
Emerald Heights Kitsap County |
251 | 1 | 0 | |
|
Rainier Pure Beef CO Cowlitz County |
251 | 2 | 0 | |
|
Rogers Water System Stevens County |
251 | 0 | 0 | |
|
Sullivan Lake Complex Pend Oreille County |
251 | 1 | 0 | |
|
Aqua Copia/horse Country Estates Snohomish County |
250 | 0 | 0 | |
|
Blalock Orchard Dist 10 Walla Walla County |
250 | 1 | 0 | |
|
Coleman Butte Water Assn Okanogan County |
250 | 0 | 0 | |
|
Eagle Ridge Snohomish County |
250 | 0 | 0 | |
|
Great Western Mobile Home Park Clark County |
250 | 0 | 0 | |
|
Lamb Weston Paterson Benton County |
250 | 0 | 0 | |
|
Nisqually Valley Moose 1905 Thurston County |
250 | 1 | 0 | |
|
Percie Road Water Association Whatcom County |
250 | 3 | 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.