All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rancho la Jota Napa County |
40 | 0 | 0 | |
|
Richmond Hunting Club-Maxwell Colusa County |
40 | 0 | 0 | |
|
Skyland Ranch Camp Riverside County |
40 | 0 | 0 | |
|
ST Francis Motel San Joaquin County |
40 | 2 | 0 | |
|
Tnf-Union Flat CG Sierra County |
40 | 1 | 0 | |
|
Tnf-Yuba Pass CG Sierra County |
40 | 0 | 0 | |
|
Truck Tops USA Santa Rosa · Sonoma County |
40 | 0 | 0 | |
|
Usfs-Middle Creek CG Lake County |
40 | 0 | 0 | |
|
Wall Water Lake County |
40 | 0 | 0 | |
|
Behrens Family Winery Napa County |
39 | 0 | 0 | |
|
Dominus Estate Winery Napa County |
39 | 0 | 0 | |
|
East Nicolaus Mwc Sutter County |
39 | 0 | 0 | |
|
Four Bar C Farms Fresno County |
39 | 2 | 0 | |
|
Friends RV Park Tulare County |
39 | 0 | 0 | |
|
Heather Lake Road Tract El Dorado County |
39 | 0 | 0 | |
|
Jada Vineyard and Winery San Simeon · San Luis Obispo County |
39 | 0 | 0 | |
|
Junction Motel Riverside County |
39 | 0 | 0 | |
|
North Coast Wine Co. Sonoma County |
39 | 1 | 1 | |
|
Olancha RV and MHP Inyo County |
39 | 0 | 0 | |
|
Redwoods River Resort & Campground Mendocino County |
39 | 0 | 0 | |
|
Sjrp Coke Hallowell Center Fresno · Fresno County |
39 | 0 | 0 | |
|
Sonoma Coast Villa Sonoma County |
39 | 0 | 0 | |
|
Sugarloaf Village Mutual Water Company Tulare County |
39 | 0 | 0 | |
|
Tamarack Lodge Placer County |
39 | 1 | 0 | |
|
Yosemite Riverside Inn Tuolumne County |
39 | 2 | 0 | |
|
Coldbrook Campground Los Angeles County |
38 | 0 | 0 | |
|
Cook's Station Amador County |
38 | 0 | 0 | |
|
Country Corners Riverside County |
38 | 0 | 0 | |
|
Dale Davis Enos Lane Facility Kern County |
38 | 0 | 0 | |
|
Dspud-Big Bend Placer County |
38 | 0 | 0 | |
|
Gene Wines LLC Napa County |
38 | 0 | 0 | |
|
J. Rickards Winery Sonoma County |
38 | 0 | 0 | |
|
Lambert Bridge Winery Healdsburg · Sonoma County |
38 | 0 | 0 | |
|
Lower East Austin Creek Sonoma County |
38 | 0 | 0 | |
|
Maeen K Yahya Madera County |
38 | 0 | 0 | |
|
Markham Vineyards Napa County |
38 | 0 | 0 | |
|
Mayacamas Vineyards Napa County |
38 | 0 | 0 | |
|
Promontory Winery Napa County |
38 | 0 | 0 | |
|
Rancho los Mochos-Bsa Camp Alameda County |
38 | 0 | 0 | |
|
Spider Web Ranch Sonoma County |
38 | 0 | 0 | |
|
Tioga Lodge Mono County |
38 | 0 | 0 | |
|
Verite Winery Sonoma County |
38 | 0 | 0 | |
|
Yosemite Alpine Csd Mariposa County |
38 | 1 | 0 | |
|
Bear Mountain Pizza Fresno County |
37 | 0 | 0 | |
|
Bouchaine Vineyards Napa County |
37 | 1 | 0 | |
|
Bud Fine Mwc Trinity County |
37 | 2 | 1 | |
|
DI Rosa Art Preserve Napa County |
37 | 1 | 0 | |
|
Dirty Bird H2o Bakersfield · Kern County |
37 | 0 | 0 | |
|
Family Food Center Madera County |
37 | 0 | 0 | |
|
Foley Johnson Winery Napa County |
37 | 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.