Revised Total Coliform Rule (RTCR) violations in California
770 active public water systems in California had a Revised Total Coliform Rule (RTCR) violation in the past three years, 100 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 |
|---|---|---|---|---|
|
Lazy J Ranch Motel Tulare County |
111 | 1 | 0 | |
|
Kamp Klamath Corp. Del Norte County |
110 | 1 | 0 | |
|
San Joaquin Fair 2nd District San Joaquin County |
110 | 1 | 0 | |
|
Sunnyside Convalescent Hosp Fresno County |
107 | 4 | 2 | |
|
International Paper Exeter Bulk Tulare County |
106 | 2 | 1 | |
|
Jameson Ranch Camp Kern County |
106 | 3 | 0 | |
|
Mono Vista Ranch MHP Tuolumne County |
105 | 2 | 0 | |
|
Riley's Log Cabin Farm San Bernardino County |
105 | 1 | 0 | |
|
Camp Trinidad RV Resort Humboldt County |
104 | 1 | 0 | |
|
Ice House Resort El Dorado County |
103 | 2 | 0 | |
|
Betabel RV Resort San Benito County |
102 | 2 | 1 | |
|
Dennison Park Ventura County |
102 | 1 | 0 | |
|
Ihs Nor Cal Youth Trmnt Ctr(sacred Oaks) Davis · Yolo County |
102 | 1 | 0 | |
|
New Solutions Construction Water System Nevada County |
102 | 1 | 0 | |
|
Old Campo Campo Indian Reservation · County |
102 | 3 | 0 | |
|
Calvary Chapel Julian San Diego County |
101 | 1 | 0 | |
|
5 Bros (formerly Brannan's Island Marin) Sacramento County |
100 | 1 | 0 | |
|
Alluvial Fuel Inc. Fresno County |
100 | 1 | 0 | |
|
Alpine American Legion San Diego County |
100 | 1 | 0 | |
|
Apro 1966 (sws) Sacramento County |
100 | 1 | 0 | |
|
B & W Resort Marina Sacramento County |
100 | 3 | 1 | |
|
Boca Rest Campground Nevada County |
100 | 1 | 0 | |
|
EL Coyote Loco San Bernardino County |
100 | 1 | 0 | |
|
Fiddletown Community Service Amador County |
100 | 3 | 0 | |
|
Forest Home Christian CC San Bernardino County |
100 | 2 | 0 | |
|
Fox Sparrow RV Park El Dorado County |
100 | 2 | 0 | |
|
Gray's Mart and Gas El Dorado County |
100 | 2 | 0 | |
|
Holland Burger Cafe San Bernardino County |
100 | 2 | 0 | |
|
J M Eagle (ws) San Joaquin County |
100 | 1 | 0 | |
|
Kennedy Meadows Resort Tuolumne County |
100 | 1 | 0 | |
|
Kiota Diggings Water System El Dorado County |
100 | 1 | 0 | |
|
Kit Carson Lodge Amador County |
100 | 2 | 0 | |
|
Loch Leven Christian Camp & Conference C San Bernardino County |
100 | 1 | 0 | |
|
Lytle Creek Administration Site San Bernardino County |
100 | 5 | 3 | |
|
MT Aukum Square El Dorado County |
100 | 1 | 0 | |
|
Peak to Peak Mountain Charter School WS Kern County |
100 | 3 | 1 | |
|
People's Market & Deli Tulare County |
100 | 2 | 0 | |
|
Pioneer Park Water System El Dorado County |
100 | 2 | 0 | |
|
Pnf Grasshopper / Grizzly Cgs Plumas County |
100 | 1 | 0 | |
|
Potrero County Park San Diego County |
100 | 1 | 0 | |
|
Ranch Coffee Shop San Joaquin County |
100 | 1 | 0 | |
|
Sierra Park Water Company Inc. Tuolumne County |
100 | 1 | 0 | |
|
Spring Valley School Butte County |
100 | 3 | 2 | |
|
Subway Sandwich Sacramento County |
100 | 1 | 0 | |
|
Usfs Dardanelle Camp Brightmn Tuolumne County |
100 | 1 | 0 | |
|
Valley HI Country Club Sacramento County |
100 | 1 | 0 | |
|
Village Bradshaw Sacramento County |
100 | 1 | 0 | |
|
Long Barn Property Owners Tuolumne County |
97 | 2 | 1 | |
|
Yurok Wautec County |
96 | 5 | 0 | |
|
49er Trailer Ranch Tuolumne County |
95 | 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 California 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.