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 |
|---|---|---|---|---|
|
Cascade View Rodger Scott Water King County |
25 | 1 | 0 | |
|
Foothills Mission Church Spokane County |
25 | 2 | 0 | |
|
Liebert Property Yakima County |
25 | 2 | 0 | |
|
Red Gate Mobile Home Park Pierce County |
25 | 5 | 0 | |
|
Sundquist Kitsap County |
25 | 1 | 0 | |
|
Wilderness Northwest Jefferson County |
25 | 2 | 0 | |
|
Widmer Water System Spokane County |
25 | 1 | 0 | |
|
West Deer Lake #1 Island County |
24 | 5 | 0 | |
|
Sun Cove Water System Okanogan County |
23 | 2 | 0 | |
|
Sundin Beach Assoc. Inc. Island County |
23 | 1 | 0 | |
|
Last Resort Columbia County |
22 | 1 | 0 | |
|
Madrona Morningside Beach Mason County |
22 | 1 | 0 | |
|
Roosevelt Views Subdivision Lincoln County |
22 | 2 | 1 | |
|
Brinnon Beach Private Estates Assn Jefferson County |
21 | 1 | 0 | |
|
Falls Creek Water Users INC Clallam County |
21 | 1 | 0 | |
|
Clarks Creek LLC Pierce County |
20 | 1 | 0 | |
|
Halfway RV Park Jefferson County |
20 | 1 | 0 | |
|
Horn Rapids Park Water System Benton County |
20 | 1 | 0 | |
|
Sunny Sites Addition 1 Chelan County |
20 | 1 | 0 | |
|
Tahuya Adventure Resort Mason County |
19 | 1 | 0 | |
|
Alverson Tract Owners Assn Skagit County |
18 | 1 | 0 | |
|
Hiddendale Div 1 & 3 Lower Jefferson County |
17 | 1 | 0 | |
|
Ketron Island Water INC Pierce County |
17 | 2 | 0 | |
|
Oro Beach RV Resort Okanogan County |
17 | 1 | 0 | |
|
Bonaparte Lake Campground-Well 4 Okanogan County |
15 | 2 | 0 | |
|
Nelson Water Front Tracts 1 and 2 Mason County |
15 | 1 | 0 | |
|
Rivers Edge Lodge Chelan County |
15 | 1 | 0 | |
|
Ocean Bay Mobile & RV Park Pacific County |
14 | 1 | 0 | |
|
Kanaka Bay Park San Juan County |
12 | 1 | 0 | |
|
Rantz Marine Park Lincoln County |
12 | 1 | 0 | |
|
Carr Group Ferry County |
11 | 1 | 0 | |
|
Summertide Mason County |
11 | 2 | 0 | |
|
Rustic Ridge Mason County |
10 | 1 | 0 | |
|
Strells West Beach Tracts Skagit County |
10 | 1 | 0 | |
|
Sun Cove Resort Spokane County |
10 | 2 | 0 | |
|
Upper Columbia RV Park & Campground Stevens County |
10 | 1 | 0 | |
|
Bakers Pond Water Users Corp Garfield County |
9 | 2 | 0 | |
|
Blueslide Resort Pend Oreille County |
9 | 1 | 0 | |
|
Sequim Bay Point Clallam County |
9 | 1 | 0 | |
|
Ski Tur Valley Kittitas County |
9 | 2 | 0 | |
|
Sunny Springs Resort & Campground Grant County |
9 | 1 | 0 | |
|
Sandy Beach Colony Pierce County |
7 | 1 | 0 | |
|
Blue Mountain Homesites Asotin County |
6 | 1 | 0 | |
|
Shangri-La Ranch Park Columbia County |
6 | 2 | 0 | |
|
Camp Cowles-Sunrise Pend Oreille County |
2 | 2 | 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.