All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Kamp Klamath Corp. Del Norte County |
110 | 1 | 0 | |
|
Mountain Valley Latter-Day Saints Church Lassen County |
110 | 0 | 0 | |
|
San Joaquin Fair 2nd District San Joaquin County |
110 | 1 | 0 | |
|
Santa Cruz KOA Campgrounds Santa Cruz County |
110 | 0 | 0 | |
|
Sievers Water Works Vacaville · Solano County |
110 | 0 | 0 | |
|
Thomas Water System Lakeport · Lake County |
110 | 0 | 0 | |
|
Triumphant Life Camp Humboldt County |
110 | 0 | 0 | |
|
Usda-Fs Landslide/logger/aspen Camps Fresno County |
110 | 0 | 0 | |
|
Usfs-Sunset Point Campground Lake County |
110 | 0 | 0 | |
|
William Tell House Marin County |
110 | 0 | 0 | |
|
Fcpg/lost Lake Recreation Area Fresno County |
109 | 0 | 0 | |
|
Gurudwara Guru Nanak Sahib Stanislaus County |
109 | 0 | 0 | |
|
Naggiar Vineyards Nevada County |
109 | 0 | 0 | |
|
Oasis at Havasu Palms County |
109 | 2 | 1 | |
|
Saintsbury Winery Napa · Napa County |
109 | 0 | 0 | |
|
The Bridgehouse Santa Barbara County |
109 | 0 | 0 | |
|
Codorniz Rec Area Eastman LK Madera County |
108 | 0 | 0 | |
|
Jacuzzi Winery Sonoma County |
108 | 0 | 0 | |
|
Kern CO P&r-Greenhorn Mt. Park Water Kern County |
108 | 0 | 0 | |
|
Lookout Roadhouse Riverside County |
108 | 0 | 0 | |
|
Mountain Valley Airport Kern County |
108 | 0 | 0 | |
|
Oakdale Cheese & Specialties Stanislaus County |
108 | 0 | 0 | |
|
Pg&e Psea Camp Pit Shasta County |
108 | 0 | 0 | |
|
Rmrc-Fairview Campground Tulare County |
108 | 0 | 0 | |
|
Usfs Hull Creek Campgd Tuolumne County |
108 | 1 | 0 | |
|
Usfs Utica Union Campground Tuolumne County |
108 | 0 | 0 | |
|
Calvary Chapel Kern County |
107 | 0 | 0 | |
|
Forward Bible Conference El Dorado County |
107 | 0 | 0 | |
|
Lafond Winery Santa Barbara County |
107 | 0 | 0 | |
|
Balch Park Tulare County |
106 | 0 | 0 | |
|
Fcsa 01 Tamarack Fresno County |
106 | 0 | 0 | |
|
Gary Farrell Winery Sonoma County |
106 | 0 | 0 | |
|
Jameson Ranch Camp Kern County |
106 | 3 | 0 | |
|
Journey S End Resort Trinity County |
106 | 0 | 0 | |
|
Laird Wine Studio Napa County |
106 | 1 | 0 | |
|
ND Daniel's Investment LLC San Diego County |
106 | 0 | 0 | |
|
Pleasure Cove Resort Napa County |
106 | 0 | 0 | |
|
Vista del Lago County |
106 | 0 | 0 | |
|
Anaba Winery Sonoma County |
105 | 0 | 0 | |
|
Camp Joe Scherman Riverside County |
105 | 0 | 0 | |
|
Clear Creek Outdoor Education Center Los Angeles County |
105 | 0 | 0 | |
|
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 | |
|
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 | |
|
Zaca Lake Retreat Santa Barbara County |
105 | 1 | 0 | |
|
Camp Trinidad RV Resort Humboldt County |
104 | 1 | 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.