Public Notification Rule violations in California
39 active public water systems in California had a Public Notification Rule violation in the past three years, 40 of them in the latest quarter of EPA's data. What Public Notification Rule is and why it matters.
Systems with a Public Notification Rule violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Big River Development Big River · County |
3,550 | 9 | 4 | |
|
Bishop Paiute-Shoshone Tribe Bishop Paiute-shoshone Reservation · County |
2,735 | 3 | 1 | |
|
Tule River Reservation Main Tule River Reservation · County |
2,560 | 9 | 2 | |
|
Redding Rancheria County |
2,015 | 7 | 2 | |
|
California Village County |
1,290 | 5 | 2 | |
|
Csp-Andrew Molera State Reserve Monterey County |
1,005 | 2 | 2 | |
|
Descanso Community Water District San Diego County |
870 | 3 | 1 | |
|
Knoll Enterprises San Bernardino County |
500 | 6 | 2 | |
|
Middletown Rancheria Community Water System County |
487 | 4 | 3 | |
|
Big Sandy Rancheria Big Sandy Rancheria · County |
408 | 5 | 2 | |
|
Twin Lakes Resort San Diego County |
400 | 5 | 2 | |
|
Torres-Martinez Clinic County |
379 | 2 | 1 | |
|
Havasu Water Company County |
361 | 11 | 4 | |
|
Aha Quin County |
315 | 3 | 2 | |
|
Rand Communities Water District Kern County |
303 | 4 | 3 | |
|
DD Mobile Home Park County |
275 | 9 | 3 | |
|
Utu Utu Gwaitu Paiute Tribe Benton Paiute Reservation · County |
222 | 4 | 3 | |
|
Cold Springs Main Cold Springs Rancheria · County |
209 | 7 | 2 | |
|
Gordon Acres Water CO San Bernardino County |
200 | 6 | 4 | |
|
Bar H Mwc San Bernardino County |
155 | 5 | 4 | |
|
Round Valley Hidden Oaks Casino and Restaurant County |
137 | 6 | 2 | |
|
Bar-Len Mwc San Bernardino County |
126 | 5 | 2 | |
|
Fort Independence Fort Independence Reservation · County |
120 | 5 | 3 | |
|
Institute of Mental Physics San Bernardino County |
120 | 3 | 1 | |
|
Round Valley Health Clinic County |
119 | 7 | 3 | |
|
Oasis at Havasu Palms County |
109 | 2 | 1 | |
|
Round Valley Admin. Complex County |
100 | 6 | 1 | |
|
Wheel-Er in Family Wheel-er In Family Resort · County |
74 | 3 | 0 | |
|
Arviso Mobile Home Park County |
70 | 4 | 2 | |
|
Turner Trailer Park County |
70 | 7 | 1 | |
|
Toledo MHP County |
68 | 5 | 3 | |
|
Heirs of MY Dream Winery, Inc. Sonoma County |
60 | 1 | 1 | |
|
Villa Shores County |
58 | 2 | 1 | |
|
Angelique Maelee Properties County |
50 | 8 | 1 | |
|
Blue Heron Restaurant Sonoma County |
50 | 1 | 1 | |
|
Big Bend Big Bend Rv Park · County |
50 | 4 | 2 | |
|
Cold Springs Subdivision Cold Springs Rancheria · County |
35 | 8 | 3 | |
|
Indian Village County |
35 | 7 | 2 | |
|
Foothill Mutual Water Company Santa Clara County |
32 | 3 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Public Notification Rule, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Public Notification Rule 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.