All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Newberry Springs Gas Station & Mini-Mart San Bernardino County |
306 | 1 | 0 | |
|
Bishop Creek Lodge Inyo County |
305 | 0 | 0 | |
|
Easton Presbyterian Church Fresno County |
304 | 2 | 0 | |
|
Ocean Cove Store & Campground Sonoma County |
304 | 0 | 0 | |
|
Petrified Forest Sonoma County |
304 | 0 | 0 | |
|
Cutler Park Tulare County |
303 | 0 | 0 | |
|
Boulder Creek Scout Reserv. Santa Cruz County |
302 | 1 | 0 | |
|
Huntington Pines Mutual Company Fresno County |
302 | 0 | 0 | |
|
Huttopia Paradise Springs Los Angeles County |
302 | 1 | 0 | |
|
Lighthouse Trailer Resort San Bernardino County |
302 | 1 | 0 | |
|
Sikh Gurdwara Santa Rosa Sonoma County |
302 | 0 | 0 | |
|
A W Way Humboldt Co. Parks Humboldt County |
301 | 0 | 0 | |
|
Camp Arev Kern County |
301 | 0 | 0 | |
|
Cazadero Performing Arts Camp Sonoma County |
301 | 0 | 0 | |
|
8986 Deep Creek Road San Bernardino County |
300 | 1 | 0 | |
|
Angelina Humboldt County |
300 | 0 | 0 | |
|
Big Lagoon Humboldt Co. Parks Humboldt County |
300 | 0 | 0 | |
|
Black Butte Lake, Headquarters, Uscoe Tehama County |
300 | 0 | 0 | |
|
Brookside Equestrian Park Sacramento County |
300 | 1 | 0 | |
|
Cal Trans Crestview Rest Area Mono County |
300 | 0 | 0 | |
|
Cal Trans Division Creek Inyo County |
300 | 1 | 1 | |
|
Camp Gilboa San Bernardino County |
300 | 1 | 0 | |
|
Camp Winton Amador County |
300 | 0 | 0 | |
|
Cherokee Memorial Park INC Water System San Joaquin County |
300 | 0 | 0 | |
|
Chowchilla Cong of J W S Madera County |
300 | 0 | 0 | |
|
City of San Diego EL Capitan Reservoir San Diego County |
300 | 0 | 0 | |
|
Cosumnes River Preserve Visitor (blm) Sacramento County |
300 | 0 | 0 | |
|
Covenant Grove Church Stanislaus County |
300 | 0 | 0 | |
|
Denny Boys Water System San Joaquin County |
300 | 1 | 0 | |
|
Dunneville Market & Kitchen San Benito County |
300 | 0 | 0 | |
|
EL Taco Loco Kern County |
300 | 0 | 0 | |
|
Elevate Camps Small Water System Shasta County |
300 | 0 | 0 | |
|
Empire Rest Stop (caltrans) Mendocino County |
300 | 0 | 0 | |
|
Fast and EZ Trip Madera · Madera County |
300 | 0 | 0 | |
|
First Baptist Church Yolo County |
300 | 0 | 0 | |
|
Franks One/stop Food Mart Water Sys San Joaquin County |
300 | 0 | 0 | |
|
Heringer Estates Winery West Sacramento · Yolo County |
300 | 2 | 0 | |
|
Irvine Lodge Rest Stop (caltrans) Mendocino County |
300 | 0 | 0 | |
|
Jack in the Box #3465 Yolo County |
300 | 0 | 0 | |
|
Lake Morena County Park San Diego County |
300 | 0 | 0 | |
|
Lds Church Atwater Merced County |
300 | 0 | 0 | |
|
Lombardi's Deli & Bbq Sonoma County |
300 | 0 | 0 | |
|
Mountain Camp II El Dorado County |
300 | 1 | 0 | |
|
North Ridge Country Club Sacramento County |
300 | 0 | 0 | |
|
Oakland Feather River Camp Plumas County |
300 | 0 | 0 | |
|
Oakstone LLC Madera County |
300 | 0 | 0 | |
|
Old Natividad RD WS #01 Monterey County |
300 | 0 | 0 | |
|
Paradise Adventist Church Butte County |
300 | 1 | 0 | |
|
Pioneer Bible Church El Dorado County |
300 | 2 | 0 | |
|
Preet Market Tulare County |
300 | 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.