All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Clear Creek Outdoor Education Center Los Angeles County |
105 | 0 | 0 | |
|
Cove Mobile Villa Siskiyou County |
105 | 1 | 1 | |
|
Csp Tule Elk Kern County |
105 | 0 | 0 | |
|
Ebrpd Bay Point Regional Shoreline Pittsburg · Contra Costa County |
105 | 0 | 0 | |
|
Handistop Market Fresno County |
105 | 1 | 0 | |
|
Highline Adventures Santa Barbara County |
105 | 0 | 0 | |
|
Live Oak Child Care Center Sutter County |
105 | 0 | 0 | |
|
McWane Plant and Industrial, LLC Tulare County |
105 | 0 | 0 | |
|
Mono Vista Ranch MHP Tuolumne County |
105 | 2 | 0 | |
|
Morada Acres Water System San Joaquin County |
105 | 0 | 0 | |
|
Oak Heights W & R CO INC Monterey County |
105 | 1 | 0 | |
|
Packwood School Tulare County |
105 | 1 | 1 | |
|
Palm Gas Mart Riverside County |
105 | 1 | 0 | |
|
Paso Robles RV Ranch San Luis Obispo County |
105 | 1 | 0 | |
|
Riley's Log Cabin Farm San Bernardino County |
105 | 1 | 0 | |
|
Scheid Vineyard WS Monterey County |
105 | 0 | 0 | |
|
Shiloh School District Stanislaus County |
105 | 1 | 0 | |
|
St. Clair Ranchos Mutual Water Co. Kern County |
105 | 0 | 0 | |
|
Varian Ranch Mutual Water San Luis Obispo County |
105 | 0 | 0 | |
|
Zaca Lake Retreat Santa Barbara County |
105 | 1 | 0 | |
|
Camp Trinidad RV Resort Humboldt County |
104 | 1 | 0 | |
|
Dinkey Creek Water Improvement Fresno County |
104 | 0 | 0 | |
|
Dino Mart 1 Fresno County |
104 | 0 | 0 | |
|
Eastern Sierra Tri County Fair Inyo County |
104 | 1 | 0 | |
|
Elim Foolish Pleasure Riverside County |
104 | 0 | 0 | |
|
Hickey Park Kings County |
104 | 0 | 0 | |
|
Kinecta Fcu Santa Barbara County |
104 | 4 | 0 | |
|
Lodi Lake Mobile Home Park San Joaquin County |
104 | 0 | 0 | |
|
Mecchi Water Company Santa Clara County |
104 | 1 | 1 | |
|
Needles KOA San Bernardino County |
104 | 0 | 0 | |
|
Nps Hole in the Wall Campground San Bernardino County |
104 | 1 | 0 | |
|
Oak Dell Park Santa Clara County |
104 | 0 | 0 | |
|
Pinyon Crest HOA Riverside County |
104 | 1 | 1 | |
|
Rmrc-Camp 3 Campground Tulare County |
104 | 0 | 0 | |
|
Sce/big Creek Powerhouse 1 Fresno County |
104 | 0 | 0 | |
|
Sun Valley Rice Company Colusa County |
104 | 0 | 0 | |
|
Tahoe Travel Inn El Dorado County |
104 | 0 | 0 | |
|
Vineburg Deli & Grocery Sonoma County |
104 | 0 | 0 | |
|
Westwind Mobile Home Park Lake County |
104 | 0 | 0 | |
|
Camp Fleming Lodge El Dorado County |
103 | 0 | 0 | |
|
Fcpg/kearney Park Fresno County |
103 | 0 | 0 | |
|
Gateway Mobile Home Park Tehama County |
103 | 0 | 0 | |
|
Ice House Resort El Dorado County |
103 | 2 | 0 | |
|
Mountain View Duplexes Tulare County |
103 | 1 | 0 | |
|
Rancho Robles Mutual Water Company Santa Clara County |
103 | 0 | 0 | |
|
Rj's Travel Center Tulare County |
103 | 1 | 0 | |
|
Sky High Ranch HOA Calaveras County |
103 | 0 | 0 | |
|
Southwest Tract W M D [sws] Sacramento County |
103 | 1 | 1 | |
|
Tony S Seafood Restaurant Marin County |
103 | 0 | 0 | |
|
Truckee River RV Park Nevada County |
103 | 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.