All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
One Hope Winery Napa · Napa County |
85 | 0 | 0 | |
|
South Feather W&p Sly Creek Campground Butte County |
85 | 0 | 0 | |
|
South Yuba Campground Nevada County |
85 | 1 | 0 | |
|
The Hilt Estate Santa Barbara · Santa Barbara County |
85 | 0 | 0 | |
|
Eagle Nest Homeowners' Association Lassen County |
84 | 0 | 0 | |
|
Lucerne Valley Parks & Recreation San Bernardino County |
84 | 0 | 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 | |
|
Saralee's Vineyard and Tasting Room Sonoma County |
84 | 0 | 0 | |
|
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 | |
|
Triassic Legacy Vineyards Water System Tehachapi · Kern County |
83 | 0 | 0 | |
|
Chowchilla Rec Area Eastman Lake Madera County |
82 | 0 | 0 | |
|
Ebrpd Round Valley Water System Contra Costa County |
82 | 0 | 0 | |
|
Jacks Ranch-Reservation Road WS Monterey County |
82 | 1 | 0 | |
|
Tomales Tin Building Marin County |
82 | 0 | 0 | |
|
Whitmore Store Shasta County |
82 | 1 | 0 | |
|
Camp Krem Yosemite Madera County |
81 | 0 | 0 | |
|
Cleone Campground and Grocery Mendocino County |
81 | 0 | 0 | |
|
Deer Creek Lodge Tehama County |
81 | 0 | 0 | |
|
Lakeview Terrace Resort Trinity County |
81 | 0 | 0 | |
|
North Wawona Estates (b System) Mariposa County |
81 | 0 | 0 | |
|
Oasis Palms RV Resort Riverside County |
81 | 0 | 0 | |
|
Questhaven Municipal Water District San Diego County |
81 | 2 | 0 | |
|
Shingletown Professional Bldg Shasta County |
81 | 0 | 0 | |
|
Anza Baptist Church Riverside County |
80 | 0 | 0 | |
|
Bambi Inn Butte County |
80 | 0 | 0 | |
|
Bear Valley YMCA Camp Placer County |
80 | 0 | 0 | |
|
Brander Vineyard Santa Barbara County |
80 | 0 | 0 | |
|
California Caverns Calaveras County |
80 | 0 | 0 | |
|
Chapel in the Pines Riverside County |
80 | 0 | 0 | |
|
Crossover Community Church Fresno County |
80 | 2 | 0 | |
|
Desert Aire Golf Course Los Angeles County |
80 | 0 | 0 | |
|
Dollar General Doyle Lassen County |
80 | 0 | 0 | |
|
Free Will Baptist Church WS Monterey County |
80 | 0 | 0 | |
|
Indian Springs Campground Nevada County |
80 | 1 | 0 | |
|
McBride Springs Campground Siskiyou County |
80 | 0 | 0 | |
|
New Life Marina Contra Costa County |
80 | 0 | 0 | |
|
Northern California Vipassana Center Lake County |
80 | 0 | 0 | |
|
Nps-Atwell Mill Tulare County |
80 | 0 | 0 | |
|
Pg&e Cassel Campground Shasta County |
80 | 0 | 0 | |
|
Pnf Big Cove CG Plumas County |
80 | 1 | 0 | |
|
Salt & Stone Restaurant Sonoma County |
80 | 0 | 0 | |
|
Sequoia RV Ranch Tulare County |
80 | 0 | 0 | |
|
Shaver Lake Point 2 Fresno County |
80 | 0 | 0 | |
|
Shepherd of the Hills Los Angeles County |
80 | 0 | 0 | |
|
Sierra Reach Ministries Placer County |
80 | 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.