All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
The Hilt Estate Santa Barbara · Santa Barbara County |
85 | 0 | 0 | |
|
Truckee-Donner Pud Hirschdale Nevada County |
85 | 0 | 0 | |
|
Truroots Butte County |
85 | 1 | 1 | |
|
Vine & Branch Fellowship Calaveras County |
85 | 0 | 0 | |
|
White's Steel, Inc. Riverside County |
85 | 3 | 3 | |
|
Chamisal Mwc San Bernardino County |
84 | 3 | 1 | |
|
Davis Estates Napa County |
84 | 0 | 0 | |
|
Eagle Nest Homeowners' Association Lassen County |
84 | 0 | 0 | |
|
Fallon Road Labor Housing San Benito County |
84 | 0 | 0 | |
|
Golden Hills Mutual Water CO Placer County |
84 | 0 | 0 | |
|
Ken Mar Gardens San Luis Obispo County |
84 | 2 | 0 | |
|
Lake San Antonio MHP WS Monterey County |
84 | 1 | 1 | |
|
Lucerne Valley Parks & Recreation San Bernardino County |
84 | 0 | 0 | |
|
MD 36 Eastin Arcola Madera County |
84 | 1 | 0 | |
|
MT Ralston Properties Assc INC El Dorado County |
84 | 0 | 0 | |
|
Orr Springs Resort Mendocino County |
84 | 0 | 0 | |
|
Panorama Park Fire Pro CO Tulare County |
84 | 0 | 0 | |
|
Ponderosa RV Park Fresno County |
84 | 0 | 0 | |
|
Round Valley Agency County |
84 | 7 | 1 | |
|
Saralee's Vineyard and Tasting Room Sonoma County |
84 | 0 | 0 | |
|
Sierra East HOA Mono County |
84 | 1 | 1 | |
|
Valley Ford Water Association Sonoma County |
84 | 3 | 1 | |
|
Wynola Farms Water District San Diego County |
84 | 0 | 0 | |
|
Bennett Lane Winery Calistoga · Napa County |
83 | 0 | 0 | |
|
Camp Maranatha Riverside County |
83 | 1 | 0 | |
|
Dhs Border Patrol Hwy 94 Checkpoint San Diego County |
83 | 2 | 1 | |
|
SJ County-Redwood School San Joaquin County |
83 | 0 | 0 | |
|
Sunrise Shore Mutual Water Company Lake County |
83 | 0 | 0 | |
|
Triassic Legacy Vineyards Water System Tehachapi · Kern County |
83 | 0 | 0 | |
|
Alameda County Fairgrounds Alameda County |
82 | 1 | 1 | |
|
Alleghany County W.d. Sierra County |
82 | 0 | 0 | |
|
Austin Acres Mutual Water Company Sonoma County |
82 | 0 | 0 | |
|
Captain Cooper School WS Monterey County |
82 | 1 | 0 | |
|
CC Farms, Llc. Fresno County |
82 | 0 | 0 | |
|
Chowchilla Rec Area Eastman Lake Madera County |
82 | 0 | 0 | |
|
Ebrpd Round Valley Water System Contra Costa County |
82 | 0 | 0 | |
|
Floricultura Pacific WS Monterey County |
82 | 1 | 1 | |
|
Jacks Ranch-Reservation Road WS Monterey County |
82 | 1 | 0 | |
|
Lake of the Woods Mobile Village Kern County |
82 | 0 | 0 | |
|
Northwest Pipe Company San Joaquin County |
82 | 2 | 1 | |
|
Penn Valley Shopping Center Nevada County |
82 | 2 | 0 | |
|
Pilot Travel Center #168 Water Yolo County |
82 | 0 | 0 | |
|
The Ranch at Live Oak Ventura County |
82 | 1 | 1 | |
|
Tomales Tin Building Marin County |
82 | 0 | 0 | |
|
Wendell Lane Mutual Water Company Sonoma County |
82 | 0 | 0 | |
|
Whitmore Store Shasta County |
82 | 1 | 0 | |
|
Airport Planet Water Shasta County |
81 | 1 | 1 | |
|
Baron Canyon Mutual Water Co. San Luis Obispo County |
81 | 0 | 0 | |
|
Blue Oak Terrace Mutual Butte County |
81 | 2 | 1 | |
|
Camp Krem Yosemite Madera County |
81 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.