Public Water Systems
7,249 active public water systems in CA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Lifebridge Community Church | Madera, CA | 150 | 1 | - |
| Yosemite Nps-Sunrise HI | Yosemite Np, CA | 150 | 2 | - |
| Yosemite Nps-Wawona | Yosemite Np, CA | 150 | 17 | - |
| Mendocino Coast Botanical Gardens | Fort Bragg, CA | 150 | 0 | - |
| Buhach Pentecost Hall | Merced, CA | 150 | 1 | - |
| Merced Golf & Country Club | Merced, CA | 150 | 10 | - |
| Dwr - San Luis Division O&m | Gustine, CA | 150 | 54 | - |
| Birchim Community Service District | Toms Place, CA | 150 | 52 | - |
| Tassajara Springs WS | Carmel Valley, CA | 150 | 80 | - |
| California Orchard WS | King City, CA | 150 | 28 | - |
| Rombauer Vineyards | St. Helena, CA | 150 | 14 | - |
| Skyline Park | Napa, CA | 150 | 16 | - |
| 5 Mile House | Nevada City, CA | 150 | 2 | - |
| Bigleys Market / Brass Rail | Penn Valley, CA | 150 | 2 | - |
| Camp Rucker Lake | Garden Grove, CA | 150 | 23 | - |
| Petersons Corner Water System | Moraga, CA | 150 | 9 | - |
| Harmony Ridge Market | Nevada City, CA | 150 | 0 | - |
| Baker Ranch Water Corp | Foresthill, CA | 150 | 18 | - |
| Kingdom Hall of Jehovah's Witnesses, Ber | Granite Bay, CA | 150 | 2 | - |
| Pg&e Ponderosa Flat Cg | Chico, CA | 150 | 0 | - |
| Pg&e Haskins Valley Cg | Chico, CA | 150 | 0 | - |
| Coppercreek Campground | Greenville, CA | 150 | 0 | - |
| Clio Rivers Edge RV Park | Clio, CA | 150 | 3 | - |
| Walker Ranch Csd | Quincy, CA | 150 | 2 | - |
| Two Rivers Sport Camp | Graeagle, CA | 150 | 12 | - |
| Reche Canyon Mutual Water Co. | Colton, CA | 150 | 27 | - |
| Tequila Market | Thermal, CA | 150 | 25 | - |
| Mt San Jacinto St Park (Stone Creek) | Perris, CA | 150 | 10 | - |
| Willow Berm Marina | Isleton, CA | 150 | 27 | - |
| Jackson Shell (Sws) | Pleasanton, CA | 150 | 4 | - |
| Hollister Ranch Estates | Hollister, CA | 150 | 42 | - |
| Desert Dawn MWC | Lucerne Valley, CA | 150 | 12 | - |
| Calico Lake Homeowners | Hesperia, CA | 150 | 8 | - |
| Bear Valley MHP | Apple Valley, CA | 150 | 5 | - |
| Calportland Oro Grande Plant | Oro Grande, CA | 150 | 6 | - |
| Camp Morning Star | Angelus Oaks, CA | 150 | 2 | - |
| Barstow Army Heliport | Fort Irwin, CA | 150 | 6 | - |
| Sunrise Estates Mutual Water Company | Jamul, CA | 150 | 16 | - |
| Mobiland Camper Park | Poway, CA | 150 | 16 | - |
| Jess Martin County Park | San Diego, CA | 150 | 6 | - |
| Islander Marina | Sacramento, CA | 150 | 23 | - |
| Shady Rest Trailer Court | Danville, CA | 150 | 46 | - |
| Collegeville Market & Cafe | Stockton, CA | 150 | 2 | - |
| St Josephs Hospital | Stockton, CA | 150 | 7 | - |
| Pacific Bell Ue17l Water System | Dallas, CA | 150 | 18 | - |
| Cbuso Dba Woodbridge Winery | Acampo, CA | 150 | 19 | - |
| Vachell Water System | San Luis Obispo, CA | 150 | 10 | - |
| Butano Canyon Mutual | Pescadero, CA | 150 | 49 | - |
| Foster Road Mutual Water Company | Santa Maria, CA | 150 | 110 | - |
| Meadowlark Ranches Mutual Water Company | Santa Ynez, CA | 150 | 9 | - |