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 |
|---|---|---|---|---|
| Dairyland School | Chowchilla, CA | 247 | 45 | - |
| Colusa Co. Service Area #1-Century Ranch | City of Colusa, CA | 246 | 10 | - |
| Esalen Institute WS | Big Sur, CA | 246 | 43 | - |
| Autocamp Sequoia | Three Rivers, CA | 246 | 24 | - |
| Rmrc-Stony Creek Campground | Overland Park, CA | 246 | 7 | - |
| Guardian Industries LLC | Kingsburg, CA | 245 | 19 | - |
| E&j Gallo Winery | Fresno, CA | 245 | 10 | - |
| Llano Mutual Water Company | Llano, CA | 245 | 14 | - |
| E & J Gallo Winery | Livingston, CA | 245 | 6 | - |
| Snowflower | Emigrant Gap, CA | 245 | 2 | - |
| Grimmway Farms Coachella Valley Facility | Bakersfield, CA | 245 | 34 | - |
| Lava Beds National Monument | Tulelake, CA | 245 | 0 | - |
| Jehovah's Witnesses - Kingdom Hall | Yolo, CA | 245 | 25 | - |
| Orland Estates Mobile H.p. | Billings, CA | 244 | 5 | - |
| Calbee America Incorporated | Madera, CA | 244 | 29 | - |
| Foster Farms Delhi Feedmill Collier Road | Delhi, CA | 244 | 56 | - |
| College Park Mutual Water Company | Penngrove, CA | 244 | 11 | - |
| Le Trianon Resort | Mill Valley, CA | 243 | 24 | - |
| Monterey Dunes Mwa | Moss Landing, CA | 243 | 15 | - |
| Countryside Estates MWC | Salinas, CA | 243 | 26 | - |
| Mountain Valley Community Church | Squaw Valley, CA | 242 | 4 | - |
| Charles Brown Water Company | Shoshone, CA | 242 | 79 | - |
| Fcsa 30 - El Porvenir | Fresno, CA | 241 | 186 | - |
| Starlite Community Service District | Bishop, CA | 241 | 15 | - |
| Tecopa Water Vending Machine | Tecopa, CA | 241 | 3 | - |
| Silent Valley Club | Banning, CA | 241 | 23 | - |
| Lundberg Family Farm | Richvale, CA | 240 | 19 | - |
| Meadow Lakes Club | Fresno, CA | 240 | 24 | - |
| Dante Club of Fresno | Fresno, CA | 240 | 14 | - |
| Pine Creek Village | Mammoth Lakes, CA | 240 | 89 | - |
| Chanac Creek Mutual Water Company | Tehachapi, CA | 240 | 21 | - |
| La Vina School | Madera, CA | 240 | 32 | - |
| Cal Shasta Club | Paso Robles, CA | 240 | 9 | - |
| Rancho Marcelino Water | Solvang, CA | 240 | 5 | - |
| Mountain Elementary School | Soquel, CA | 240 | 11 | - |
| Millville Elementary School | Millville, CA | 240 | 10 | - |
| Ash Creek Fire Station-Stnf | Mt. Shasta, CA | 240 | 9 | - |
| Lassen Vnp - Butte Lake | Mineral, CA | 240 | 0 | - |
| Rmrc-Hospital Flat Campground | Overland Park, CA | 240 | 0 | - |
| Nps-Cold Springs | Three Rivers, CA | 240 | 2 | - |
| MD 05 Mountain Ranches | Madera, CA | 239 | 17 | - |
| Fishcamp Mutual Water Company | Madera, CA | 239 | 6 | - |
| Department of Water and Power | Big Bear Lake, CA | 239 | 8 | - |
| Kennolyn Camp | Soquel, CA | 239 | 26 | - |
| Cacheville Service Dist | Woodland, CA | 239 | 77 | - |
| Canyon School | Canyon, CA | 238 | 20 | - |
| Rainbird Valley MWC | Weldon, CA | 238 | 149 | - |
| Camp Lakota Water System | Inglewood, CA | 238 | 5 | - |
| Ballico Csd | Ballico, CA | 238 | 1 | - |
| Bella Union Winery | St. Helena, CA | 238 | 19 | - |