All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Agbayani Village Water System Kern County |
26 | 0 | 0 | |
|
Albion Mutual Water Company Mendocino County |
26 | 1 | 1 | |
|
Anza Borrego SP Horse Camp San Diego County |
26 | 0 | 0 | |
|
Basso Bridge Fishing/boating Access Stanislaus County |
26 | 0 | 0 | |
|
Beckley Lyons Water System Stanislaus County |
26 | 0 | 0 | |
|
Borjon Winery Amador County |
26 | 2 | 0 | |
|
Calpine (west Field Office) Sonoma County |
26 | 0 | 0 | |
|
Caltrans, Sand Hill Rest Stop Imperial County |
26 | 1 | 0 | |
|
Casa Dulce Estates Los Angeles County |
26 | 0 | 0 | |
|
Chateau Montelena Winery Napa County |
26 | 0 | 0 | |
|
City of Oakdale -Kerr Park Stanislaus County |
26 | 0 | 0 | |
|
Clean Harbors Buttonwillow, Llc. Kern County |
26 | 0 | 0 | |
|
Copain Wine Cellars Sonoma County |
26 | 0 | 0 | |
|
Cressey Store Merced County |
26 | 0 | 0 | |
|
Daou Vineyards, LLC San Luis Obispo County |
26 | 0 | 0 | |
|
Dinkey Creek Inn Fresno County |
26 | 1 | 0 | |
|
Eastin Stanislaus County |
26 | 2 | 0 | |
|
Edna Beaman Elementary School Mono County |
26 | 1 | 1 | |
|
Emerald City Mutual Water CO Santa Cruz County |
26 | 0 | 0 | |
|
Farmer Water System Sonoma County |
26 | 0 | 0 | |
|
Farmers Mini Mart Kings County |
26 | 0 | 0 | |
|
Farmers' Den /market Stanislaus County |
26 | 1 | 0 | |
|
Firefall Ranch Water System Tuolumne County |
26 | 2 | 1 | |
|
Fog Eater Cafe Mendocino County |
26 | 0 | 0 | |
|
Foster Farms #5 Stanislaus County |
26 | 0 | 0 | |
|
Fox Grove Fishing Access Stanislaus County |
26 | 0 | 0 | |
|
Frank Raines Park Ohv Stanislaus County |
26 | 0 | 0 | |
|
Fritz Winery and Vineyard Sonoma County |
26 | 0 | 0 | |
|
Frontier Trails Homeowners Assoc Inc. Kern County |
26 | 0 | 0 | |
|
Gawfco Enterprises, Inc. Stanislaus County |
26 | 0 | 0 | |
|
Gold Ridge Pinot Dba Emeritus Vineyards Sonoma County |
26 | 0 | 0 | |
|
Gurdawara, Gur Nanak Parkash Water Syste San Joaquin County |
26 | 0 | 0 | |
|
Hamlet Motel Stanislaus County |
26 | 1 | 0 | |
|
Harrington RD WS #07 Monterey County |
26 | 2 | 1 | |
|
Iron Hub Winery Amador County |
26 | 0 | 0 | |
|
Jessies Grove Winery San Joaquin County |
26 | 0 | 0 | |
|
Joe's Food Mart Water System Stanislaus County |
26 | 0 | 0 | |
|
Joe's Travel Plaza (eh) Stanislaus County |
26 | 0 | 0 | |
|
Kingdom Hall of Jehovah's Witness-Wms Colusa County |
26 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses San Joaquin County |
26 | 0 | 0 | |
|
Knights Ferry Recreation Area Stanislaus County |
26 | 0 | 0 | |
|
LA Casa Loma River Store Tuolumne County |
26 | 1 | 0 | |
|
LA Grange Park-Ohv Stanislaus County |
26 | 0 | 0 | |
|
Lakeview Gas & Food Plumas County |
26 | 0 | 0 | |
|
Lawler Park Riv.county Parks Riverside County |
26 | 1 | 0 | |
|
Lmr Main Street Partners LLC Napa County |
26 | 0 | 0 | |
|
Loch Haven Mutual Water Company Sonoma County |
26 | 0 | 0 | |
|
Log Cabin Stanislaus County |
26 | 0 | 0 | |
|
Long Barn Lodge Inc. Tuolumne County |
26 | 1 | 0 | |
|
Martinez Apartments San Joaquin County |
26 | 2 | 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.