Revised Total Coliform Rule (RTCR) violations in Washington
845 active public water systems in Washington had a Revised Total Coliform Rule (RTCR) violation in the past three years, 133 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
San Poil Keller · County |
86 | 5 | 0 | |
|
Hood Canal Highlands Kitsap County |
83 | 1 | 0 | |
|
Canoe Island San Juan County |
82 | 1 | 0 | |
|
Wonderland Water Company Mason County |
82 | 1 | 0 | |
|
Turnbull Wildlife Refuge System 1 Spokane County |
81 | 1 | 0 | |
|
Lake Lawrence Mobile Home Park Thurston County |
80 | 1 | 0 | |
|
West Side Mobile Court Adams County |
80 | 1 | 0 | |
|
Ocean Park Retreat Ctr and U M Cmp Pacific County |
79 | 1 | 0 | |
|
Shyne School Water System King County |
79 | 1 | 0 | |
|
The High End Chelan County |
79 | 1 | 0 | |
|
Bacchus Jefferson County |
78 | 1 | 0 | |
|
G&g Orchard Yakima County |
78 | 2 | 0 | |
|
South Whidbey P&r Sports Complex Island County |
78 | 2 | 0 | |
|
Columbia Rim Water System Klickitat County |
77 | 1 | 0 | |
|
Wine Valley Water System Walla Walla County |
77 | 1 | 0 | |
|
Winthrop KOA Okanogan County |
77 | 2 | 0 | |
|
Devries Road Community Assn Island County |
76 | 3 | 0 | |
|
Country Christian Center Franklin County |
75 | 1 | 0 | |
|
Dalkena Community Church Pend Oreille County |
75 | 2 | 0 | |
|
Camp Fife Yakima County |
75 | 2 | 0 | |
|
Lake Wilderness Shore Acres Estate King County |
75 | 5 | 0 | |
|
Olympia Bible Thurston County |
75 | 1 | 0 | |
|
Sunset West Island County |
75 | 2 | 0 | |
|
Maple Haven Clallam County |
74 | 2 | 0 | |
|
Rom 626 Lewis County |
74 | 1 | 0 | |
|
Zittels Marina Thurston County |
74 | 1 | 0 | |
|
Loge Alta Crystal Pierce County |
72 | 2 | 0 | |
|
Silver Beach Resort Yakima County |
72 | 2 | 0 | |
|
Wahluke Meeting House Grant County |
72 | 1 | 0 | |
|
Elk Meadows Park Klickitat County |
71 | 1 | 0 | |
|
Prince of Peace Catholic Church Mason County |
71 | 2 | 0 | |
|
Vikings West Mobile Home Grays Harbor County |
71 | 2 | 0 | |
|
Wolf Creek Property Owners Assn Okanogan County |
71 | 1 | 0 | |
|
Cooks In-Lieu Tfas County |
70 | 1 | 0 | |
|
Northwest Natural Thurston County |
70 | 2 | 0 | |
|
Riggleman Orchards INC Klickitat County |
70 | 2 | 0 | |
|
Stagecoach RV Park Yakima County |
70 | 1 | 0 | |
|
Wolfe Water Association Yakima County |
70 | 1 | 0 | |
|
Clear Lake Grace Brethren Camp INC Yakima County |
69 | 1 | 0 | |
|
Cyo Camp Hamilton Snohomish County |
69 | 2 | 0 | |
|
Mabana Shores Association Island County |
68 | 3 | 0 | |
|
Banks Lake Golf Course Grant County |
67 | 1 | 0 | |
|
Bertelsen Winery Water System Skagit County |
67 | 2 | 0 | |
|
HI Valley View Yakima County |
67 | 1 | 0 | |
|
Littlerock Water Works INC Thurston County |
67 | 1 | 0 | |
|
Lower Falls CG Upper LP Skamania County |
67 | 1 | 0 | |
|
Peninsula Moose Lodge Pacific County |
67 | 1 | 0 | |
|
Country Cousins Adams County |
66 | 1 | 0 | |
|
Gresham Water Kitsap County |
66 | 2 | 0 | |
|
Guest Services Inc. Pierce County |
66 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
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.