All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Janesville Chevron Lassen County |
25 | 0 | 0 | |
|
Janesville Fire Hall Lassen County |
25 | 0 | 0 | |
|
Jehovah's Witnesses Davis Yolo County |
25 | 0 | 0 | |
|
Jensen Precast San Joaquin County |
25 | 0 | 0 | |
|
Johnstonville Quality Foods Lassen County |
25 | 0 | 0 | |
|
Joseph Cold Storage LLC Kern County |
25 | 1 | 0 | |
|
Joshua Inn San Bernardino County |
25 | 1 | 0 | |
|
Kangaroo Lake Campground Siskiyou County |
25 | 0 | 0 | |
|
Kenzo Winery Napa County |
25 | 0 | 0 | |
|
Keyes 76 (water System) Stanislaus County |
25 | 0 | 0 | |
|
Kidd Lake Placer County |
25 | 0 | 0 | |
|
Kiernan/mchenry Water Company, INC Stanislaus County |
25 | 0 | 0 | |
|
Kind Real Estate, LLC WS Monterey County |
25 | 0 | 0 | |
|
King Range Admin-Blm Humboldt County |
25 | 0 | 0 | |
|
King's Skate Country Sacramento County |
25 | 0 | 0 | |
|
Kingston-Laton Park Kings County |
25 | 0 | 0 | |
|
Kingvale H2o Placer County |
25 | 1 | 0 | |
|
Kirk Business Center Los Angeles County |
25 | 0 | 0 | |
|
Kwik Break Deli Mart Kings County |
25 | 0 | 0 | |
|
LA Fuente Market Ii(wa) Kings County |
25 | 0 | 0 | |
|
LA Mesa Vineyards Amador County |
25 | 0 | 0 | |
|
LA Porte Pines Country Club Plumas County |
25 | 0 | 0 | |
|
LA Porte Water District Plumas County |
25 | 0 | 0 | |
|
Lake Alpine Improvement Association Alpine County |
25 | 0 | 0 | |
|
Lakeview Inn and Eagle Lake Bar & Grill Lassen County |
25 | 0 | 0 | |
|
Lassen RV Park & Campground Lassen County |
25 | 0 | 0 | |
|
Laurel Pines Camp San Bernardino County |
25 | 0 | 0 | |
|
Leavitt Lake Market Lassen County |
25 | 0 | 0 | |
|
Liana Estate Napa County |
25 | 1 | 0 | |
|
Likely Place Golf and RV Resort Modoc County |
25 | 0 | 0 | |
|
Loading Chute San Luis Obispo County |
25 | 1 | 0 | |
|
Lockeford Holdings Water District LLC San Joaquin County |
25 | 0 | 0 | |
|
Lodgepole Campground Placer County |
25 | 0 | 0 | |
|
Lone Star Dehydrator Fresno County |
25 | 2 | 2 | |
|
Los Indios Water System Stanislaus County |
25 | 0 | 0 | |
|
Los Prietos Boy's Camp Santa Barbara County |
25 | 1 | 1 | |
|
Lovelace Transfer Station San Joaquin County |
25 | 0 | 0 | |
|
Lower Sac Plaza San Joaquin County |
25 | 0 | 0 | |
|
M.f. Mitchell & Company Humboldt County |
25 | 2 | 0 | |
|
Mallo Gold Mine Plaza Amador County |
25 | 1 | 0 | |
|
Marborg Industries Santa Barbara County |
25 | 0 | 0 | |
|
Marin Food Specialties Contra Costa County |
25 | 0 | 0 | |
|
Mazzocco Winery Sonoma County |
25 | 0 | 0 | |
|
McHenry Ave Recreation Area San Joaquin County |
25 | 0 | 0 | |
|
McLean Water System Madera County |
25 | 0 | 0 | |
|
McPr-Hornitos Co. Park Mariposa County |
25 | 0 | 0 | |
|
McPr-Red Cloud Park Mariposa County |
25 | 0 | 0 | |
|
Meadowcliff Lodge & Coleville/walker KOA Mono County |
25 | 0 | 0 | |
|
Melville Winery Santa Barbara County |
25 | 0 | 0 | |
|
Mendocino Bungalows Mendocino County |
25 | 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.