All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Maccallum House Inn Mendocino County |
200 | 0 | 0 | |
|
Madera Municipal Golf Course Madera County |
200 | 1 | 0 | |
|
Mariposa District Fairground Mariposa County |
200 | 2 | 0 | |
|
Mdf-Blue Lake CG Modoc County |
200 | 1 | 0 | |
|
Morada Chevron Fast N Easy #60* San Joaquin County |
200 | 0 | 0 | |
|
New Life Calvary Chapel of Mariposa Mariposa County |
200 | 0 | 0 | |
|
Octagon Barn Center Association San Luis Obispo County |
200 | 0 | 0 | |
|
Old Eucalyptus Schoolhouse Imperial County |
200 | 0 | 0 | |
|
Palisades Water System Placer County |
200 | 0 | 0 | |
|
Paradise Point Marina San Joaquin County |
200 | 0 | 0 | |
|
Pomo Campground Mendocino County |
200 | 1 | 0 | |
|
Putah Canyon Campground Napa County |
200 | 0 | 0 | |
|
Reel in Resort Lake County |
200 | 0 | 0 | |
|
River View Grill & Bar Tulare County |
200 | 0 | 0 | |
|
Scribner Bend Vineyard Sacramento County |
200 | 0 | 0 | |
|
Sierra Energy #3 Nevada County |
200 | 0 | 0 | |
|
Sloughhouse Inn Sacramento County |
200 | 1 | 0 | |
|
Snowline Madera County |
200 | 0 | 0 | |
|
Success Market Tulare County |
200 | 1 | 0 | |
|
The Barn Tulare County |
200 | 2 | 0 | |
|
Tnf-Cal-Ida Well Sierra County |
200 | 0 | 0 | |
|
Treasure Mountain Camp Sierra County |
200 | 0 | 0 | |
|
Trees of Mystery Del Norte County |
200 | 1 | 0 | |
|
U.s. Army Corps-Lake Mendo (marina Site) Mendocino County |
200 | 0 | 0 | |
|
United Travel Plaza Yolo County |
200 | 1 | 0 | |
|
USA Petro Super Stop Tulare County |
200 | 1 | 0 | |
|
Usace-Kaweah Recreation Area Tulare County |
200 | 0 | 0 | |
|
Usfs Lee Vining Ranger Station Mono County |
200 | 0 | 0 | |
|
Virgin Sturgeon Sacramento County |
200 | 0 | 0 | |
|
Waltons Grizzly Lodge Plumas County |
200 | 0 | 0 | |
|
Welcome Grange Hall Napa County |
200 | 1 | 0 | |
|
Woodcraft Rangers San Bernardino County |
200 | 1 | 0 | |
|
YMCA Camp Tulequoia/millwood Fresno County |
200 | 0 | 0 | |
|
Yosemite Bible Camp Madera County |
200 | 0 | 0 | |
|
Crazzy's Wasewagan Camp San Bernardino County |
198 | 0 | 0 | |
|
Roaring Camp Railroad INC Santa Cruz County |
193 | 0 | 0 | |
|
Auberry Lds Church Fresno County |
192 | 0 | 0 | |
|
Bridge Camp Trinity County |
190 | 0 | 0 | |
|
Camp Jack Hazard Tuolumne County |
190 | 0 | 0 | |
|
Rio Mesa Golf INC Madera County |
190 | 0 | 0 | |
|
Shepherd of the Hills Tehachapi Kern County |
190 | 0 | 0 | |
|
Ken's Shopping Center Fresno County |
187 | 1 | 0 | |
|
Carnegie Svra San Joaquin County |
186 | 0 | 0 | |
|
Csp Bale Grist Mill State Historic Par Napa County |
185 | 0 | 0 | |
|
Doyle Springs Association Tulare County |
185 | 0 | 0 | |
|
Usfs-Buckhorn Camp A-12 Water Los Angeles County |
185 | 0 | 0 | |
|
Grapevine RV Park Kern County |
184 | 0 | 0 | |
|
Associations of Thompson Lake Plumas County |
182 | 0 | 0 | |
|
Csp Caswell State Park San Joaquin County |
182 | 0 | 0 | |
|
Mt. Hamilton Grandview Restaurant Santa Clara County |
181 | 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.