All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Valimet INC San Joaquin County |
46 | 0 | 0 | |
|
Vincent Vineyards Santa Barbara County |
46 | 0 | 0 | |
|
Aborn Heights Water Mutual Association Santa Clara County |
45 | 1 | 1 | |
|
Allied Waste of Imperial Valley Imperial County |
45 | 2 | 1 | |
|
Bear Valley Water Company San Luis Obispo County |
45 | 2 | 1 | |
|
Bella Vineyards and Wine Caves Sonoma County |
45 | 0 | 0 | |
|
Benzeen Auto Parts Yuba County |
45 | 0 | 0 | |
|
Bethel Harbor Contra Costa County |
45 | 0 | 0 | |
|
Bible Baptist Academy Yuba County |
45 | 0 | 0 | |
|
Black Stallion Winery Napa County |
45 | 0 | 0 | |
|
Bsa/camp Oljato Fresno County |
45 | 0 | 0 | |
|
Bucks Lake Marina Plumas County |
45 | 1 | 0 | |
|
California Sweet Potato Growers Coop Merced County |
45 | 0 | 0 | |
|
Camphora Station WS Monterey County |
45 | 0 | 0 | |
|
Campobello Sonoma County |
45 | 0 | 0 | |
|
Casa Medanos Water System Contra Costa County |
45 | 1 | 1 | |
|
Chalfant Valley West M.w.c. Mono County |
45 | 0 | 0 | |
|
Clos Pegase Winery Napa County |
45 | 1 | 1 | |
|
Duncans Mills Trading Company Sonoma County |
45 | 0 | 0 | |
|
Earthrise Nutritionals, LLC Imperial County |
45 | 1 | 0 | |
|
Ebrpd Piedmont Stables Alameda County |
45 | 0 | 0 | |
|
Echo Valley RD WS #05 Monterey County |
45 | 0 | 0 | |
|
Elsinore Hills RV Park Riverside County |
45 | 0 | 0 | |
|
Elwell Lodge Plumas County |
45 | 0 | 0 | |
|
Excell Center Stanislaus County |
45 | 1 | 1 | |
|
Fcsa 23 Exchequer Heights Fresno County |
45 | 0 | 0 | |
|
Freeport Marina Sacramento County |
45 | 0 | 0 | |
|
Gaf Materials CO San Joaquin County |
45 | 0 | 0 | |
|
Garcia Farms Produce Livingston · Merced County |
45 | 0 | 0 | |
|
Genesis Solar LLC Riverside County |
45 | 0 | 0 | |
|
Gold Rock Ranch Imperial County |
45 | 5 | 0 | |
|
Golden Acres Trailer Park Tehama County |
45 | 0 | 0 | |
|
Golden State Vintners Fresno Fresno County |
45 | 0 | 0 | |
|
Golden Valley Camp Amador County |
45 | 0 | 0 | |
|
Harvest at Mendosas Mendocino County |
45 | 0 | 0 | |
|
Hidden Meadow Mutual Water CO Santa Cruz County |
45 | 1 | 0 | |
|
Holland Riverside Marina Contra Costa County |
45 | 0 | 0 | |
|
Horse & Plow Tasting Room Sonoma County |
45 | 0 | 0 | |
|
Huckleberry Mutual Water Company Sonoma County |
45 | 1 | 0 | |
|
Ironwood Camp San Bernardino County |
45 | 1 | 0 | |
|
Kendall-Jackson Wine Center Sonoma County |
45 | 0 | 0 | |
|
Kendall-Jackson Winery WS Monterey County |
45 | 0 | 0 | |
|
Kings River Packing-Centerville Fresno County |
45 | 1 | 0 | |
|
Leisure Acres Mutual Water Company Madera County |
45 | 0 | 0 | |
|
Liberty Baptist Church Stanislaus County |
45 | 1 | 0 | |
|
Main Street Produce Santa Barbara County |
45 | 1 | 1 | |
|
McLaughlin Waste Equipment INC San Joaquin County |
45 | 1 | 1 | |
|
MD 85 Valeta Madera County |
45 | 0 | 0 | |
|
Mendo Mill and Lumber Company Lakeport · Lake County |
45 | 0 | 0 | |
|
Mercey Springs Shell Merced County |
45 | 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.