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 |
|---|---|---|---|---|
| Donner Summit Public Utility District | Soda Springs, CA | 310 | 27 | - |
| Calizona RV Park | Dana Point, CA | 310 | 4 | - |
| Camp Cedar Crest | Running Springs, CA | 310 | 4 | - |
| San Joaquin Water Works #2 | Stockton, CA | 310 | 4 | - |
| Lakeside Woods Mutual Water Co | Lakehead, CA | 310 | 6 | Clean |
| Sebastopol Charter School | Sebastopol, CA | 310 | 0 | - |
| Preet Market | Tulare, CA | 310 | 26 | - |
| Potter Valley School District | Potter Valley, CA | 309 | 17 | - |
| Manzanita Park WS | Salinas, CA | 309 | 92 | - |
| Cws - Upper Bodfish Water System | San Jose, CA | 307 | 12 | - |
| Trinity Alps Resort | Trinity Center, CA | 307 | 5 | - |
| Newberry Springs Gas Station & Mini-Mart | Sylmar, CA | 306 | 2 | - |
| Las Cruces State Park | Ventura, CA | 306 | 2 | - |
| Bishop Creek Lodge | Bishop, CA | 305 | 29 | - |
| Deshmesh Darbar Lodi/Stk Water Sys | Lodi, CA | 305 | 0 | - |
| New Avenue Mutual Water Company | Gilroy, CA | 305 | 7 | - |
| River Ranch Mobile Home Park | Concord, CA | 305 | 16 | - |
| Easton Presbyterian Church | Fresno, CA | 304 | 78 | - |
| Santa Ynez Rancho Estates | Santa Ynez, CA | 304 | 2 | - |
| Petrified Forest | Calistoga, CA | 304 | 0 | - |
| Heavenly Hills Christian Camp | Twain Harte, CA | 304 | 10 | - |
| Grace Valley Christian Center | Davis, CA | 304 | 0 | - |
| Rand Communities Water District | Johanesburg, CA | 303 | 193 | - |
| Stagecoach Inn | Aguanga, CA | 303 | 25 | - |
| Apple Valley View MWC | Apple Valley, CA | 303 | 24 | - |
| Cutler Park | Visalia, CA | 303 | 17 | - |
| Easton Estates Water Company | Fresno, CA | 302 | 14 | - |
| Huntington Pines Mutual Company | Fresno, CA | 302 | 6 | - |
| Huttopia Paradise Springs | Valyermo, CA | 302 | 7 | - |
| Lighthouse Trailer Resort | Big Bear City, CA | 302 | 13 | - |
| Alpine Retreat and Camp | Twin Peaks, CA | 302 | 5 | - |
| Boulder Creek Scout Reserv. | Foster City, CA | 302 | 13 | - |
| Sikh Gurdwara Santa Rosa | Santa Rosa, CA | 302 | 0 | - |
| 5033 Pentecost | Modesto, CA | 302 | 5 | - |
| A W Way - Humboldt Co. Parks | Eureka, CA | 301 | 7 | - |
| Camp Arev | Glendale, CA | 301 | 30 | - |
| Summerfield Waldorf School | Santa Rosa, CA | 301 | 25 | - |
| Cazadero Performing Arts Camp | Berkeley, CA | 301 | 8 | - |
| Sun Pacific - Tulare | Tulare, CA | 301 | 20 | - |
| Camp Winton | Sacramento, CA | 300 | 51 | - |
| Pioneer Bible Church | Somerset, CA | 300 | 35 | - |
| Mountain Camp II | Lafayette, CA | 300 | 14 | - |
| US Army Corps/Island Park | Piedra, CA | 300 | 6 | - |
| Woodward Bluffs MHP | Fresno, CA | 300 | 48 | - |
| Jack's Gas #2 | Cutler, CA | 300 | 77 | - |
| Phillipsville C.s.d. | Phillipsville, CA | 300 | 69 | - |
| Angelina | Sun Valley, CA | 300 | 24 | - |
| Big Lagoon - Humboldt Co. Parks | Eureka, CA | 300 | 0 | - |
| Spreckels Sugar Company | Brawley, CA | 300 | 28 | - |
| Gsa Calexico Port of Entry | San Diego, CA | 300 | 41 | - |