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 |
|---|---|---|---|---|
| Playa Dulce | San Luis Obispo, CA | 35 | 0 | - |
| Parsons Water Supply | San Luis Obispo, CA | 35 | 2 | - |
| Oku Incorporated | Pescadero, CA | 35 | 94 | - |
| Tres Hermanas Winery | Santa Maria, CA | 35 | 0 | - |
| Chisan Orchids Nursery | Los Alamos, CA | 35 | 5 | - |
| Martian Ranch & Vineyard | Los Alamos, CA | 35 | 2 | - |
| Rancho de Lomas Mutual Water Company | Morgan Hill, CA | 35 | 1 | - |
| Better Cooling Produce | Santa Maria, CA | 35 | 18 | - |
| Vincent Vineyards | Los Olivos, CA | 35 | 8 | - |
| Canyon Creek MHP | Redding, CA | 35 | 8 | - |
| Whitmore Union Elem School | Whitmore, CA | 35 | 28 | - |
| Camp McCumber Water System | Redding, CA | 35 | 0 | - |
| Sonoma Mountain Zen Center | Santa Rosa, CA | 35 | 27 | - |
| Jimtown and Then Sum | Healdsburg, CA | 35 | 11 | - |
| Vino Farms, Inc. - Wasson Ranch | Healdsburg, CA | 35 | 13 | - |
| Paradise Ridge Winery | Santa Rosa, CA | 35 | 5 | - |
| United Rentals | Santa Rosa, CA | 35 | 8 | - |
| Deerfield Ranch Winery LLC | Glen Ellen, CA | 35 | 18 | - |
| Truett & Hurst Winery | Healdsburg, CA | 35 | 4 | - |
| Odiyan Buddhist Retreat Center | Cazadero, CA | 35 | 2 | - |
| Pepperwood Environmental Center | Santa Rosa, CA | 35 | 0 | - |
| Tlc Child & Family Services | Sebastopol, CA | 35 | 20 | - |
| Hook & Ladder Vineyards and Winery | Santa Rosa, CA | 35 | 2 | - |
| Hamel Family Wines | Sonoma, CA | 35 | 0 | - |
| Eighth Street East Partners | Sonoma, CA | 35 | 2 | - |
| J. Rickards Winery | Cloverdale, CA | 35 | 2 | - |
| Saini Winery | Healdsburg, CA | 35 | 0 | - |
| Golden State Pft Properties LLC | Turlock, CA | 35 | 37 | - |
| Sterling Industrial | Modesto, CA | 35 | 5 | - |
| Caltrans-Cottonwood Truck Insp. Fac. | Redding, CA | 35 | 0 | - |
| Buckeye Tree Lodge | Three Rivers, CA | 35 | 50 | - |
| Usfs-Lower Peppermint | Kernville, CA | 35 | 6 | - |
| Wiebe Farms | Reedley, CA | 35 | 5 | - |
| Beedy Water Company, LLC | Camarillo, CA | 35 | 23 | - |
| Teichert Construction | Sacramento, CA | 35 | 9 | - |
| Feather River Manor | Plumas Lake, CA | 35 | 7 | - |
| Shop & Save | Lincoln, CA | 35 | 1 | - |
| Feather River School | Oroville, CA | 34 | 32 | - |
| Tahoe Mountain Inn | South Lake Tahoe, CA | 34 | 25 | - |
| Fcsa 44C - Riverview Estates | Fresno, CA | 34 | 4 | - |
| Tehachapi Cummings County Water District | Tehachapi, CA | 34 | 2 | - |
| Billingsley Dvm Water System | Tehachapi, CA | 34 | 2 | - |
| Richmond Park Resort | San Anselmo, CA | 34 | 34 | - |
| Camp Chilnualna Water System | Wawona, CA | 34 | 2 | - |
| Dash Dream Plant | Dos Palos, CA | 34 | 2 | - |
| Redwoods River Resort & Campground | Leggett, CA | 34 | 15 | - |
| Sherman Lake Marina | Oakley, CA | 34 | 7 | - |
| B & R Farms | Hollister, CA | 34 | 39 | - |
| Best Western Cajon Pass | Redwood City, CA | 34 | 6 | - |
| Descanso Fire Station | San Diego, CA | 34 | 42 | - |