All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Fellowship of Friends Yuba County |
60 | 1 | 1 | |
|
Flowers Winery Sonoma County |
60 | 0 | 0 | |
|
Gazelle School Siskiyou County |
60 | 1 | 1 | |
|
Gcg Water System Kern County |
60 | 1 | 1 | |
|
Gico Management San Joaquin County |
60 | 1 | 0 | |
|
Gold Country Home Park Water System Nevada County |
60 | 0 | 0 | |
|
Gotham Greens Davis · Solano County |
60 | 0 | 0 | |
|
Groskopf Warehouse & Logistics Sonoma County |
60 | 2 | 2 | |
|
Gus S Steakhouse Tuolumne County |
60 | 1 | 0 | |
|
Happy Harbor (sws) Sacramento County |
60 | 2 | 0 | |
|
Haven Humane Water System Shasta County |
60 | 0 | 0 | |
|
Heirs of MY Dream Winery, Inc. Sonoma County |
60 | 1 | 1 | |
|
Husicks West Sacramento · Yolo County |
60 | 0 | 0 | |
|
Isot Community Water System Modoc County |
60 | 0 | 0 | |
|
King's IV Condominiums El Dorado County |
60 | 0 | 0 | |
|
LA Cima Fire Center San Diego County |
60 | 0 | 0 | |
|
LA Plata Water System Riverside County |
60 | 0 | 0 | |
|
LA Valle Sabbia Inc. Imperial County |
60 | 1 | 1 | |
|
Lagoon Creek-Redwood NP Del Norte County |
60 | 1 | 0 | |
|
Lake Francis Mutual Water Company Yuba County |
60 | 0 | 0 | |
|
Lassen Landing Shasta County |
60 | 0 | 0 | |
|
Loma Rica Market Yuba County |
60 | 0 | 0 | |
|
La Posta Lower Community County |
60 | 2 | 0 | |
|
Mariposa Industrial Park Water Company Mariposa County |
60 | 0 | 0 | |
|
Mariscos la Langosta Water System Tulare County |
60 | 2 | 0 | |
|
Martin's Mobile Home Court Stanislaus County |
60 | 2 | 1 | |
|
McNally's Fairview Lodge Tulare County |
60 | 0 | 0 | |
|
Mid Valley Nut CO Hughson · Stanislaus County |
60 | 3 | 2 | |
|
Mireval Improvement Association Santa Clara County |
60 | 1 | 0 | |
|
Morgan Hill Usd-Machado School Santa Clara County |
60 | 0 | 0 | |
|
Mountain Meadow Ranch Lassen County |
60 | 0 | 0 | |
|
North Shore Estates WS Monterey County |
60 | 0 | 0 | |
|
ON the Y Sacramento County |
60 | 1 | 0 | |
|
Original Sherwood Valley Rancheria County |
60 | 2 | 0 | |
|
Palms San Bernardino County |
60 | 0 | 0 | |
|
Peach Growers Tract Improv Assoc Tuolumne County |
60 | 1 | 0 | |
|
Psmcsd Blackie RD WS Monterey County |
60 | 0 | 0 | |
|
Rancho Marina Sacramento County |
60 | 2 | 1 | |
|
Rebel Ridge Village Yuba County |
60 | 1 | 0 | |
|
Reynolds Consumer Products (red Bluff) Tehama County |
60 | 2 | 2 | |
|
River City Recovery Center, Inc. (sws) Sacramento County |
60 | 0 | 0 | |
|
Rock Creek Mutual Water Co. Del Norte County |
60 | 1 | 1 | |
|
Royal Oak Place WS Monterey County |
60 | 1 | 1 | |
|
Salamander Trailer Park Imperial County |
60 | 0 | 0 | |
|
Salt Springs Valley Res. & Campgrnd Calaveras County |
60 | 0 | 0 | |
|
SC Corner (water Only) Madera County |
60 | 1 | 0 | |
|
Sea West Restaurant Del Norte County |
60 | 0 | 0 | |
|
Sheldon Trading Post Sacramento County |
60 | 1 | 0 | |
|
Sherwood Forest MHP Fresno County |
60 | 1 | 1 | |
|
Sherwood Harbor Marina Yolo County |
60 | 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.