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 |
|---|---|---|---|---|
|
Vineyard Estates Mwc San Benito County |
90 | 2 | 1 | |
|
Jacks Ranch-Reservation Road WS Monterey County |
82 | 1 | 0 | |
|
Victor Valley Wastewater Reclam San Bernardino County |
80 | 2 | 0 | |
|
Shackleford Creek Community Water System County |
80 | 5 | 0 | |
|
All Saints Retreat and Formation Center San Diego County |
72 | 2 | 1 | |
|
VFW Post 5551 San Bernardino County |
70 | 2 | 0 | |
|
Calvary Church INC WS Monterey County |
68 | 1 | 1 | |
|
Toledo MHP County |
68 | 5 | 3 | |
|
Brookside MHP San Bernardino County |
65 | 7 | 3 | |
|
Mount Gilead Bible Conference Sonoma County |
64 | 1 | 1 | |
|
Pit River XL Rancheria Pit River Tribe · County |
61 | 6 | 0 | |
|
Groskopf Warehouse & Logistics Sonoma County |
60 | 2 | 2 | |
|
Jed Smith Homeowners Assn. Del Norte County |
58 | 1 | 1 | |
|
Upper Sage Flat Campground Inyo County |
53 | 1 | 0 | |
|
Camp Shasta Coffee Company Shasta County |
51 | 1 | 0 | |
|
Church of Spiritual Technology San Bernardino County |
51 | 1 | 0 | |
|
Apple Valley Faith Center San Bernardino County |
50 | 1 | 0 | |
|
Bass Fork Star Madera County |
50 | 1 | 0 | |
|
Bridgeville Elem. School Humboldt County |
50 | 2 | 1 | |
|
Big Bend Big Bend Rv Park · County |
50 | 4 | 2 | |
|
Lake Don Pedro Homeowners Tuolumne County |
50 | 1 | 0 | |
|
North San Juan Community Center Nevada County |
50 | 1 | 0 | |
|
East County Transitional Living Center San Diego County |
50 | 1 | 0 | |
|
East Wilson Road Water Company Kern County |
46 | 2 | 1 | |
|
Branscomb Mobile Home Park Mendocino County |
42 | 3 | 2 | |
|
Avi Kwa Ame Farms North County |
40 | 4 | 3 | |
|
Yolo CO Central Landfill Yolo County |
40 | 2 | 1 | |
|
Bud Fine Mwc Trinity County |
37 | 2 | 1 | |
|
Sabrina Campground Inyo County |
37 | 1 | 0 | |
|
Sage Flat Campground Inyo County |
37 | 1 | 0 | |
|
Cold Springs Subdivision Cold Springs Rancheria · County |
35 | 8 | 3 | |
|
Indian Village County |
35 | 7 | 2 | |
|
Blu-In Cafe Imperial County |
33 | 1 | 0 | |
|
Moonstone Heights Mwa Humboldt County |
33 | 1 | 0 | |
|
San Andreas RV Park Sacramento County |
30 | 1 | 1 | |
|
Vista Grande Station Usfs Riverside County |
30 | 2 | 1 | |
|
Camp Stevens San Diego County |
28 | 1 | 1 | |
|
Center of the World Imperial County |
28 | 1 | 0 | |
|
Rollin Wagon Trailer Club Madera County |
28 | 1 | 0 | |
|
Dinkey Creek Inn Fresno County |
26 | 1 | 0 | |
|
VFW Post 5059 Water System Stanislaus County |
26 | 1 | 1 | |
|
Bagdad Cafe San Bernardino County |
25 | 2 | 0 | |
|
Barn the San Bernardino County |
25 | 2 | 0 | |
|
Bravo Farms Traver Tulare County |
25 | 3 | 0 | |
|
Cadiz INC San Bernardino County |
25 | 1 | 0 | |
|
Fenders San Bernardino County |
25 | 2 | 0 | |
|
Pine Ridge Treatment Center San Bernardino County |
25 | 2 | 0 | |
|
Tule River Apple Valley County |
25 | 3 | 0 | |
|
Meadow Lake Apartments Inyo County |
22 | 2 | 1 | |
|
Bolo Station RV Park & Snack Bar San Bernardino County |
6 | 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 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.