All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Usn Camp Michael Monsoor San Diego · San Diego County |
159 | 0 | 0 | |
|
Lerdo Travel Center Kern County |
158 | 0 | 0 | |
|
Musick Creek Tract Association Fresno County |
158 | 0 | 0 | |
|
Zamora Shell & Mini Mart Yolo County |
158 | 0 | 0 | |
|
Cedar Lake Camp INC San Bernardino County |
157 | 0 | 0 | |
|
Gas Point Market Shasta County |
157 | 1 | 0 | |
|
Russian River Vineyards & Restaurant Sonoma County |
157 | 0 | 0 | |
|
Arco Ampm #42924 Bakersfield · Kern County |
156 | 0 | 0 | |
|
Chitactac-Adams County Park Santa Clara County |
156 | 0 | 0 | |
|
Coppercreek Campground Plumas County |
156 | 0 | 0 | |
|
Lower Line Creek Imprvmnt Assn Fresno County |
156 | 1 | 0 | |
|
MK Properties Fresno County |
156 | 1 | 0 | |
|
Sebastopol Vineyards Sonoma County |
156 | 0 | 0 | |
|
Shadow Hills RV Resort Riverside County |
156 | 1 | 0 | |
|
Silver City Water Co. Tulare County |
156 | 0 | 0 | |
|
Tom's Place Mono County |
156 | 0 | 0 | |
|
Bradshaw Ranch Golf Course INC Sacramento County |
155 | 0 | 0 | |
|
Camp Chesebrough Santa Cruz County |
155 | 0 | 0 | |
|
Csp Fort Tejon Kern County |
155 | 0 | 0 | |
|
Panaderia la Cabana Tulare County |
155 | 1 | 0 | |
|
Picacho State Reservation Area Imperial County |
155 | 0 | 0 | |
|
Punjabi Dhaba Solano County |
155 | 0 | 0 | |
|
Sunol Super Stop Alameda County |
155 | 0 | 0 | |
|
Albion Field Station Mendocino County |
154 | 0 | 0 | |
|
Butano Girl Scout Camp San Mateo County |
154 | 0 | 0 | |
|
Camp Ross Relles Nevada County |
154 | 1 | 0 | |
|
Gateway Market Water System Kern County |
154 | 0 | 0 | |
|
Burney Falls/hat Creek KOA Shasta County |
153 | 0 | 0 | |
|
Golden Bear RV Park Del Norte County |
153 | 1 | 0 | |
|
Stanford Inn by the Sea Mendocino County |
153 | 0 | 0 | |
|
Camp Alandale at Sky Meadows San Bernardino County |
152 | 1 | 0 | |
|
Folsom Lake Sra Mississippi Bar Sacramento County |
152 | 0 | 0 | |
|
Grizzly Creek Sp-State Parks Humboldt County |
152 | 0 | 0 | |
|
Lakehead Campground & RV Park Shasta County |
152 | 1 | 0 | |
|
Quail Valley Recreational Village Tulare County |
152 | 0 | 0 | |
|
Rancho Market Madera County |
152 | 0 | 0 | |
|
The Manor Estate Madera County |
152 | 0 | 0 | |
|
Antlers Resort & RV Park Shasta County |
151 | 0 | 0 | |
|
Baptist Christian Camp of CA Yuba County |
151 | 0 | 0 | |
|
Black Butte Lk, Orland Buttes Campground Glenn County |
151 | 0 | 0 | |
|
Donner Mine Camp INC Nevada County |
151 | 2 | 0 | |
|
Hidden Falls Girl Scout Camp Santa Cruz County |
151 | 1 | 0 | |
|
Liberty 1st Ward Meeting House Butte County |
151 | 0 | 0 | |
|
Marin Sierra Boy Scouts of America Nevada County |
151 | 0 | 0 | |
|
Salt Creek Summer Homes Shasta County |
151 | 0 | 0 | |
|
Sonoma State U.-Fairfield Osborn Pres Sonoma County |
151 | 0 | 0 | |
|
5 Mile House Nevada County |
150 | 0 | 0 | |
|
Acton-Agua Dulce Lds Church Los Angeles County |
150 | 0 | 0 | |
|
Adam's Market Fresno County |
150 | 0 | 0 | |
|
Anderson Tucker Oaks Golf Shasta County |
150 | 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.