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 |
|---|---|---|---|---|
| El Camino WC Inc | Salinas, CA | 133 | 230 | - |
| Canyon Crest Mutual Benefit WC | Arroyo Grande, CA | 133 | 2 | - |
| Sierra Pacific Industries | Chinese Camp, CA | 133 | 6 | - |
| Robbs Resort | Roseville, CA | 132 | 6 | - |
| Fcsa 10 - Cumorah Knolls | Fresno, CA | 132 | 3 | - |
| Cartago Mutual Water Company | Bishop, CA | 132 | 13 | - |
| Tejon Ranch Main Headquarters | Lebec, CA | 132 | 20 | - |
| Kern Valley Mutual Water Company | Lake Isabella, CA | 132 | 39 | - |
| Ashford Highlands MWC | Hollister, CA | 132 | 23 | - |
| Edna Valley Ranch East | Arroyo Grande, CA | 132 | 16 | - |
| Christmas Cove | Paso Robles, CA | 132 | 0 | - |
| Sid - Quail Canyon | Vacaville, CA | 132 | 0 | - |
| Olivarez Honey Bees | Orland, CA | 131 | 3 | - |
| Clear Skies Mobile Home Park | Tustin, CA | 131 | 15 | - |
| Palomar Mtn. Sp - Doane Valley | Borrego Springs, CA | 131 | 12 | - |
| Country Squire Mobile Estates & Water Sy | Oakdale, CA | 131 | 35 | - |
| Cassel Park Mutual Water Co | Cassel, CA | 131 | 10 | - |
| Shaffer S High Sierra Camp | Chico, CA | 131 | 25 | - |
| Mountain Valley Apts & Rvp | Red Bluff, CA | 131 | 10 | - |
| Treasure Creek Woods MWC | Lewiston, CA | 131 | 10 | - |
| G & J Properties | Chico, CA | 130 | 14 | - |
| Usda Agricultural Research Service | Parlier, CA | 130 | 13 | - |
| Fish Lake Cg - Srnf | Eureka, CA | 130 | 3 | - |
| Trinidad Extended Stay RV | Sacramento, CA | 130 | 21 | - |
| Rio Bend RV Golf Resort & Storm Crossing | El Centro, CA | 130 | 16 | - |
| Sunview Cold Storage Water System | Delano, CA | 130 | 15 | - |
| Wildland Training Center | Bakersfield, CA | 130 | 12 | - |
| Old River Mutual Water Company | Clovis, CA | 130 | 66 | - |
| Quail Canyon Sea | Lancaster, CA | 130 | 10 | - |
| Yosemite Terrace Estates | Greeley Hill, CA | 130 | 20 | - |
| Minturn Nut Co., Inc. | Le Grand, CA | 130 | 6 | - |
| Grant Lake Marina | June Lake, CA | 130 | 17 | - |
| Arroyo Center WC | Greenfield, CA | 130 | 61 | - |
| Syar Industries | Napa, CA | 130 | 18 | - |
| Mobile Villas Trailer Park | Stockton, CA | 130 | 11 | - |
| San Lorenzo Seminary | Santa Ymez, CA | 130 | 10 | - |
| Jardines del Valle | Watsonville, CA | 130 | 12 | - |
| Andreini Business Park Water System | Redding, CA | 130 | 7 | - |
| Roseland Mobile Home Park | San Juan Capistrano, CA | 130 | 9 | - |
| Triple S Ranch | Sausalito, CA | 130 | 4 | - |
| Csp-Jack London State Historic Park | Petaluma, CA | 130 | 0 | - |
| River Oaks Golf Club | Nicolaus, CA | 130 | 8 | - |
| Cal Fire - Salt Creek Conservation Camp | Paynes Creek, CA | 130 | 6 | - |
| Salyer Heights W.S., Inc | Salyer, CA | 130 | 36 | - |
| St Anthony Retreat Center | Three Rivers, CA | 130 | 36 | - |
| Ventura Coastal, LLC - Tipton Division | Tipton, CA | 130 | 35 | - |
| Teen Challenge | Reedley, CA | 130 | 2 | - |
| Evergreen Lodge | Tiburon, CA | 130 | 22 | - |
| Norcal Adventure Area | Sacramento, CA | 130 | 2 | - |
| Fcwwd 37/Mile High | Fresno, CA | 129 | 6 | - |