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 |
| Lakeside Mobile Estates | Railroad Flat, CA | 30 | 10 | - |
| Brentwood Marina | Knightsen, CA | 30 | 0 | - |
| Sunset Marina | Bethel Island, CA | 30 | 0 | - |
| All Star Academy of Danville | Pleasanton, CA | 30 | 4 | - |
| Crivelli's Water System | Klamath, CA | 30 | 4 | - |
| Dru Barner Campground | Georgetown, CA | 30 | 0 | - |
| Usfs/Pinehurst Work Center | Porterville, CA | 30 | 9 | - |
| Huntington Lake Resort | Alamo, CA | 30 | 49 | - |
| Vermilion Valley Resort | Lakeshore, CA | 30 | 15 | - |
| Oak View Terrace | Clovis, CA | 30 | 55 | - |
| Chooljian Bros Packing Co | Sanger, CA | 30 | 15 | - |
| Wonderful Pistachios & Almonds-El Dorado | Lost Hills, CA | 30 | 4 | - |
| Clingans Junction Cabins and Coffee | Squaw Valley, CA | 30 | 6 | - |
| Tollhouse Market & Grill | Tollhouse, CA | 30 | 0 | - |
| Pg&e Helms Hq/Powerhouse | Auberry, CA | 30 | 6 | - |
| City of Orland, Haigh Field Park | Orland, CA | 30 | 4 | - |
| Heartwood Institute | Garberville, CA | 30 | 19 | - |
| Red Hill Marina | El Centro, CA | 30 | 29 | - |
| Uc Desert Research and Extension Center | Holtville, CA | 30 | 118 | - |
| Wiest Lake | El Centro, CA | 30 | 32 | - |
| Iid North End Consolidation | Imperial, CA | 30 | 19 | - |
| Sidewinder Chevron | Winterhaven, CA | 30 | 10 | - |
| Bornt 1992 Irrevocable Trust | Holtville, CA | 30 | 14 | - |
| Duner's Diner | Winterhaven, CA | 30 | 9 | - |
| Bird Industrial Complex | Bishop, CA | 30 | 20 | - |
| Sabrina Campground | Bishop, CA | 30 | 2 | - |
| Usfs - Havilah Work Center | Porterville, CA | 30 | 17 | - |
| Usfs - Fulton Work Center | Porterville, CA | 30 | 23 | - |
| Murray Family Farms at Copus Road | Bakersfield, CA | 30 | 2 | - |
| Tehachapi Valley United Methodist Church | Tehachapi, CA | 30 | 9 | - |
| Kings Rest Motel | Lemoore, CA | 30 | 2 | - |
| Golden State Water Company - South Shore | Rancho Cordova, CA | 30 | 78 | - |
| Wayside Inn Market | Sacramento, CA | 30 | 4 | - |
| Doyle Payless Shell | Doyle, CA | 30 | 0 | - |
| Vasquez Rocks County Park | Baldwin Park, CA | 30 | 0 | - |
| Texas Canyon Ranger Station | Arcadia, CA | 30 | 13 | - |
| Usfs-Pyramid Lake S-14 | Pearblossom, CA | 30 | 30 | - |
| Specialty Crop Co | Madera, CA | 30 | 12 | - |
| Batterson Work Center (Water) | Clovis, CA | 30 | 16 | - |
| Coarsegold Inn | Coarsegold, CA | 30 | 50 | - |
| Mammoth Pool Mobile Home Park | Palm Springs, CA | 30 | 220 | - |
| Hitching Post Saloon | Oakhurst, CA | 30 | 19 | - |
| Ripperdan Dehydrator | Kingsburg, CA | 30 | 9 | - |
| Savages Trading Post | Watsonville, CA | 30 | 10 | - |
| Jug Handle Creek Farm | Caspar, CA | 30 | 0 | - |
| Covelo Mobile Home Park | Ukiah, CA | 30 | 20 | - |
| Csp-Russian Gulch State Park | Duncans Mills, CA | 30 | 29 | - |
| San Joaquin Valley National Cemetery | Santa Nella, CA | 30 | 64 | - |
| Merced Animal Medical Center | Merced, CA | 30 | 0 | - |
| Snelling Chevron | Snelling, CA | 30 | 2 | - |