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 |
|---|---|---|---|---|
| Foothill WA | Salinas, CA | 46 | 14 | - |
| Placer Cwa - Monte Vista | Auburn, CA | 46 | 4 | - |
| DE Benneville Pines | Redlands, CA | 46 | 0 | - |
| Questhaven Municipal Water District | San Marcos, CA | 46 | 9 | - |
| South County Retirement Home | San Martin, CA | 46 | 5 | - |
| Los Altos Rod and Gun Club | Saratoga, CA | 46 | 0 | - |
| Coleman National Fish Hatchery | Anderson, CA | 46 | 13 | - |
| Lancaster Estate Winery | Healdsburg, CA | 46 | 0 | - |
| Pierpoint Springs Water Co. | Springville, CA | 46 | 17 | - |
| Del Oro East Plano District | Chico, CA | 46 | 31 | - |
| Giumarra Bros Fruit Co | Reedley, CA | 46 | 18 | - |
| Davis Jusd - Fairfield School | Davis, CA | 46 | 42 | - |
| Ebrpd - Piedmont Stables | Oakland, CA | 45 | 0 | - |
| Golden Valley Camp | Volcano, CA | 45 | 15 | - |
| Holland Riverside Marina | Brentwood, CA | 45 | 20 | - |
| Bethel Harbor | Bethel Island, CA | 45 | 0 | - |
| Casa Medanos Water System | Walnut Creek, CA | 45 | 10 | - |
| Bsa/Camp Oljato | Foster City, CA | 45 | 26 | - |
| Fcsa 23 - Exchequer Heights | Fresno, CA | 45 | 4 | - |
| Pg&e Trapper Springs Campgrnd | Redding, CA | 45 | 4 | - |
| Kings River Packing-Centerville | Sanger, CA | 45 | 2 | - |
| Whitethorn Construction | Whitethorn, CA | 45 | 18 | - |
| Allied Waste of Imperial Valley | Imperial, CA | 45 | 18 | - |
| Earthrise Nutritionals, LLC | Calipatria, CA | 45 | 12 | - |
| Owens Peak South | Ridgecrest, CA | 45 | 6 | - |
| Panama Road Property Owners Assoc | Bakersfield, CA | 45 | 19 | - |
| South Kern Industrial Center | Taft, CA | 45 | 2 | - |
| TN Truss | Granada Hills, CA | 45 | 10 | - |
| Plant Water Well - Rockview Dairy | Downey, CA | 45 | 0 | - |
| Leisure Acres Mutual Water Company | North Fork, CA | 45 | 72 | - |
| MD 85 Valeta | Madera, CA | 45 | 21 | - |
| Harvest at Mendosas | Fort Bragg, CA | 45 | 2 | - |
| Stevinson Ranch Maint. Shop/the Grove | Stevinson, CA | 45 | 5 | - |
| Garcia Farms Produce | Livingston, CA | 45 | 0 | - |
| Crowley Lake Campland | Mammoth Lakes, CA | 45 | 52 | - |
| Chalfant Valley West M.W.C. | Bishop, CA | 45 | 2 | - |
| San Miguel WS #03 | Royal Oaks, CA | 45 | 14 | - |
| Echo Valley RD WS #05 | Salinas, CA | 45 | 32 | - |
| Sunny Acres Mws | Chualar, CA | 45 | 20 | - |
| Spreckels Ln WS #03 | Salinas, CA | 45 | 60 | - |
| Mount Toro Ranchos Mwa | Salinas, CA | 45 | 24 | - |
| Kendall-Jackson Winery WS | Santa Maria, CA | 45 | 29 | - |
| Groth Vineyards & Winery | Oakville, CA | 45 | 2 | - |
| Black Stallion Winery | Napa, CA | 45 | 6 | - |
| V. Sattui Winery | Calistoga, CA | 45 | 62 | - |
| Elwell Lodge | Colfax, CA | 45 | 5 | - |
| Bucks Lake Marina | Quincy, CA | 45 | 7 | - |
| Genesis Solar LLC | Blythe, CA | 45 | 2 | - |
| Zen Mountain Center | Mountain Center, CA | 45 | 13 | - |
| Elsinore Hills RV Park | Lake Elsinore, CA | 45 | 15 | - |