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 |
|---|---|---|---|---|
|
Primm Valley Golf Club San Bernardino County |
50 | 4 | 2 | |
|
Silverfork Store Water System El Dorado County |
50 | 2 | 0 | |
|
South Shore Recreation Area El Dorado County |
50 | 2 | 1 | |
|
Super Drive in Fresno County |
50 | 1 | 0 | |
|
Tabernacle of Praise Church Fresno County |
50 | 1 | 0 | |
|
Tavis Corporation Mariposa County |
50 | 4 | 1 | |
|
The Rainbow Junction Water System Santa Clara County |
50 | 2 | 0 | |
|
Turtle Creek Water System Madera County |
50 | 1 | 0 | |
|
Waterloo Gun & Bocce Club San Joaquin County |
50 | 1 | 0 | |
|
Wild Goose Duck Club Butte County |
50 | 1 | 0 | |
|
Zapien Market San Joaquin County |
50 | 1 | 0 | |
|
Goathouse Brewing Agua Placer County |
49 | 2 | 0 | |
|
MD 28 Ripperdan Self Help Madera County |
48 | 1 | 0 | |
|
Anderson Valley Brewing Company Mendocino County |
47 | 1 | 0 | |
|
Indian Wells Lodge Kern County |
47 | 1 | 0 | |
|
Back Country Inn San Diego County |
47 | 1 | 0 | |
|
The Jeffrey Hotel El Dorado County |
47 | 1 | 0 | |
|
Alliance Redwoods Conference Grounds Sonoma County |
46 | 1 | 0 | |
|
Bucks Lake Marina Plumas County |
45 | 1 | 0 | |
|
Hidden Meadow Mutual Water CO Santa Cruz County |
45 | 1 | 0 | |
|
Kings River Packing-Centerville Fresno County |
45 | 1 | 0 | |
|
Olive Dell Ranch San Bernardino County |
45 | 3 | 0 | |
|
Pg&e Trapper Springs Campgrnd Fresno County |
45 | 1 | 0 | |
|
Sequoia Motel Tulare County |
45 | 1 | 0 | |
|
Fottw Nevada County |
44 | 2 | 0 | |
|
Viking RV Park Fresno County |
44 | 2 | 0 | |
|
Darr Water CO San Bernardino County |
43 | 4 | 1 | |
|
Lakeview Apartments Santa Cruz County |
43 | 3 | 1 | |
|
Sierra Vista Association Tulare County |
43 | 3 | 1 | |
|
Bucktail Mutual Water Company Trinity County |
42 | 3 | 2 | |
|
Hopeton School Merced County |
42 | 1 | 0 | |
|
L'azienda D'agostini Amador County |
42 | 2 | 0 | |
|
Millard Canyon Improvement Association Los Angeles County |
42 | 1 | 0 | |
|
West Tech Industrial Park Fresno County |
42 | 2 | 1 | |
|
Don Pedro Rec Ag:flem.meadows Tuolumne County |
41 | 1 | 0 | |
|
Gonzalez MHP County |
41 | 3 | 0 | |
|
Ranchos los Ferro MHP County |
41 | 1 | 0 | |
|
Apple Valley Farms Sonora · Tuolumne County |
40 | 1 | 0 | |
|
East Three Rivers Mutual Water Corp Tulare County |
40 | 3 | 2 | |
|
Granite Construction Company Riverside County |
40 | 1 | 0 | |
|
Investors of King Island Water Sys San Joaquin County |
40 | 1 | 0 | |
|
Kneeland School Humboldt County |
40 | 2 | 0 | |
|
Pnf Chilcoot CG Plumas County |
40 | 1 | 0 | |
|
Pnf Cottonwood CG / Frenchman Admin Plumas County |
40 | 1 | 0 | |
|
Pnf Frenchman & Spring Creek Cgs Plumas County |
40 | 1 | 0 | |
|
Pnf Long Point CG Plumas County |
40 | 1 | 0 | |
|
Rush Creek Lodge Water System Tuolumne County |
40 | 1 | 0 | |
|
Seymour's Mutual Water System Trinity County |
40 | 3 | 1 | |
|
ST Francis Motel San Joaquin County |
40 | 2 | 0 | |
|
Tnf-Union Flat CG Sierra County |
40 | 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.