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 |
|---|---|---|---|---|
| WILSONA GARDENS MUTUAL | LANCASTER, CA | 129 | 22 | — |
| TRILLIUM CAFE AND INN | MENDOCINO, CA | 129 | 0 | — |
| COASTLANDS MWS (POST CREEK) | BIG SUR, CA | 129 | 23 | — |
| VALLEY CREEK MHP WS | CARMEL, CA | 129 | 164 | — |
| MAVERIK FUELING STATION | DESERT HOT SPRINGS, CA | 129 | 0 | — |
| RANCHO YNECITA | LOS OLIVOS, CA | 129 | 5 | — |
| GREENE ACRES PROP. O.A. | LOOMIS, CA | 129 | 33 | — |
| END-O-VALLEY MUTUAL WATER COMPANY | SANTA ROSA, CA | 129 | 17 | — |
| KINGS INN MOTEL | GLENDORA, CA | 129 | 141 | — |
| SIERRA TWAIN HARTE MHP | JAMESTOWN, CA | 129 | 13 | — |
| CAMP EL CAMINO PINES | YUCAIPA, CA | 128 | 6 | — |
| MILAT WINERY | ST. HELENA, CA | 128 | 5 | — |
| LEDSON WINERY AND VINEYARDS | KENWOOD, CA | 128 | 2 | — |
| ENCINAL ELEMENTARY SCHOOL | LIVE OAK, CA | 128 | 43 | — |
| CALIFORNIA VIPASSANA CENTER | NORTH FORK, CA | 127 | 40 | — |
| TOPAZ LAKE RV PARK | TOPAZ, CA | 127 | 27 | — |
| DIAMOND JACK'S RV RANCH | JAMUL, CA | 127 | 18 | — |
| LAKESIDE SD-LAKESIDE SCHOOL | LOS GATOS, CA | 127 | 10 | — |
| DUNCANS MILLS CAMPING CLUB | DUNCANS MILLS, CA | 127 | 9 | — |
| BEAR RIVER SUMMER HOME TRACT | JACKSON, CA | 126 | 3 | — |
| ARBUCKLE GOLF CLUB | ARBUCKLE, CA | 126 | 0 | — |
| RIVERVIEW MOBILE HOME PARK | SACRAMENTO, CA | 126 | 11 | — |
| ANCIENT REDWOODS RESORT | REDCREST, CA | 126 | 4 | — |
| BROOKSIDE MOBILE HOME PARK | SIMI VALLEY, CA | 126 | 4 | — |
| UPPER SAGE FLAT CAMPGROUND | BISHOP, CA | 126 | 4 | — |
| BURRIS PARK | HANFORD, CA | 126 | 8 | — |
| ASSISI MWC | SALINAS, CA | 126 | 56 | — |
| CAMPHORA APARTMENTS | HAYWARD, CA | 126 | 9 | — |
| PRINCES CAMP RESORT WS | SALINAS, CA | 126 | 62 | — |
| BAR-LEN MWC | BARSTOW, CA | 126 | 67 | Detected |
| AERONAUTICAL SYSTEMS | PALMDALE, CA | 126 | 4 | — |
| EMPIRE LANDING CAMPGROUND-SUNDANCE RV | EARP, CA | 126 | 3 | — |
| CALLENDER GROVE MUTUAL WATER | SAN LUIS OBISPO, CA | 126 | 2 | — |
| CRESTWOOD HEIGHTS WATER ASSN | WATSONVILLE, CA | 126 | 9 | — |
| SHADOW MOUNTAIN MHP | SAN JUAN CAPISTRANO, CA | 126 | 11 | — |
| FIRCREST MUTUAL WATER COMPANY | SEBASTOPOL, CA | 126 | 11 | — |
| PARK INVESTMENTS WATER SYSTEM | THREE RIVERS, CA | 126 | 25 | — |
| CALIFORNIA ODD FELLOW-REBEKAH | MI WUK VILLAGE, CA | 126 | 24 | — |
| FIREFALL RANCH WATER SYSTEM | SONORA, CA | 126 | 4 | — |
| GRACE FELLOWSHIP CHURCH | JACKSON, CA | 125 | 14 | — |
| BEAR RIVER GROUP CAMPGROUND | HOLLISTER, CA | 125 | 18 | — |
| FOREST RANCH CHARTER SCHOOL | CHICO, CA | 125 | 12 | — |
| RIVER REFLECTIONS RV & CAMPGROUND | OROVILLE, CA | 125 | 19 | — |
| CAMP NAUVOO WATER SYSTEM | PLACERVILLE, CA | 125 | 7 | — |
| MOUNTAIN CREEK SCHOOL | SOMERSET, CA | 125 | 28 | — |
| GERLE CREEK CAMPGROUND | HOLLISTER, CA | 125 | 27 | — |
| LOON LAKE CAMPGROUND | HOLLISTER, CA | 125 | 20 | — |
| BEAR MOUNTAIN LIBRARY/ACT CNTR | SQUAW VALLEY, CA | 125 | 20 | — |
| QUAIL LAKE COMMUNITY CHURCH | CLOVIS, CA | 125 | 6 | — |
| MOONSTONE BEACH TRINIDAD | TRINIDAD, CA | 125 | 12 | — |