Tapcensus

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.

Health effects: Total coliform bacteria indicate that the disinfection barrier has been breached or fecal contamination is entering the system. E. coli specifically indicates fecal contamination and the possible presence of disease-causing pathogens (norovirus, Salmonella, Shigella, Campylobacter). Illness can be severe in elderly, young children, and immunocompromised individuals.

Systems with a Revised Total Coliform Rule (RTCR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Newaukum Ventures
Lewis County
186 1 0
Chippewa Water District
Pend Oreille County
185 1 0
Port of Willapa Harbor Tokeland
Pacific County
184 1 0
Long Point Water Company INC
Island County
182 2 0
Big Y Cafe
Chelan County
180 1 0
Lombard Loop Water Association
Yakima County
180 2 0
Taylor Bay Beach Club INC
Pierce County
175 1 0
Stehekin Pastry Company
Chelan County
174 2 0
Orondo Cider Works
Douglas County
172 1 0
US Border Station Danville
Ferry County
171 1 0
Warden Hutterian Brethren 1
Adams County
171 1 0
Hoh
Jefferson County
170 1 0
Sea View
Grays Harbor County
170 2 0
Olympic Park Trailer Court
Amanda Park · County
169 4 0
Quail Run Mobile Home Park
Grant County
165 1 0
Country Villa Mobile Park
Stevens County
162 3 0
Bon Air Community Club Inc.
Island County
160 1 0
Ford-Newhouse Lane
Wellpinit · County
160 6 1
Triangle Recreation Camp WS
Snohomish County
159 1 0
Rainbow Beach Resort
Coulee Dam · County
158 4 2
Fobes Water District
Snohomish County
156 3 0
Coho Campground
Grays Harbor County
152 2 0
Rhodena Beach Water District
Island County
152 1 0
Blue Lake Resort
Grant County
151 1 0
101 Building Quileute
Shuwah · County
150 1 0
Briggs Nursery
Grays Harbor County
150 1 0
Key Peninsula Volunteer Park
Pierce County
150 1 0
Panorama Mobile Home Park
Stevens County
150 4 0
Reflection Water Association
Spokane County
150 2 0
West 15 Domestic Water Assn
Franklin County
150 2 0
Shorebrook Community Club
Mason County
148 1 0
Crestview West Water System
King County
147 3 0
Lake Easton State Park West
Kittitas County
143 1 0
Oaks the Mobile Home Park
San Juan County
143 2 0
Camp Ghormley
Yakima County
142 2 0
High Valley Mobile Home Court
Yakima County
142 1 0
Crow Butte Park
Benton County
141 1 0
Race Lagoon Heights Association
Island County
141 3 0
Treveri
Yakima County
141 2 0
Lakeview Terrace
Island County
140 3 0
Old German Baptist Church New Conf
Franklin County
140 2 0
Sunset Ridge Community Assn
Island County
140 1 0
Cherry Creek
King County
138 1 0
Hard Rain Cafe & Mercantile
Jefferson County
137 1 0
Premium Quality Hay & Feed
Lewis County
136 1 0
Clear Lake CG South/naches RD
Yakima County
135 1 0
Middle Waddell Campground
Thurston County
135 1 0
Marlin Hutterian
Grant County
134 3 1
Otto Water System
Pierce County
133 2 0
Zirkle Four Feathers Ranch
Benton County
133 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.