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 |
| BISHOP CREEK SYSTEM | BISHOP, CA | 300 | 4 | — |
| CAL TRANS - DIVISION CREEK | BISHOP, CA | 300 | 3 | — |
| HORSESHOE MEADOW CAMPGROUND | BISHOP, CA | 300 | 6 | — |
| GRIMMWAY FARMS- FROZEN FOODS | BAKERSFIELD, CA | 300 | 42 | — |
| CHEVRON SAN JOAQUIN | BAKERSFIELD, CA | 300 | 17 | — |
| THE GARLIC COMPANY | SHAFTER, CA | 300 | 24 | — |
| EL TACO LOCO | BAKERSFIELD, CA | 300 | 6 | — |
| GLENHAVEN MUTUAL WATER COMPANY | GLENHAVEN, CA | 300 | 19 | — |
| IRWINDALE BREWERY YARD (IBY) | IRWINDALE, CA | 300 | 8 | — |
| MD 46 AHWAHNEE RESORTS | MADERA, CA | 300 | 158 | — |
| PUMICE FLATS CAMPGROUND | BISHOP, CA | 300 | 17 | — |
| KKMJLLC GRANITE MOUNTAIN RESORT | OAKHURST, CA | 300 | 14 | — |
| MD 63 MEADOW SPRINGS RANCH | MADERA, CA | 300 | 4 | — |
| CHOWCHILLA CONG OF J W S | CHOWCHILLA, CA | 300 | 35 | — |
| FAST AND EZ TRIP | KNOXVILLE, CA | 300 | 0 | — |
| YOSEMITE NPS-MAY LAKE CAMP | YOSEMITE NP, CA | 300 | 0 | — |
| IRVINE LODGE REST STOP (CALTRANS) | EUREKA, CA | 300 | 2 | — |
| EMPIRE REST STOP (CALTRANS) | EUREKA, CA | 300 | 0 | — |
| U.S. ARMY CORPS-LAKE MENDO (POMO SITE) | UKIAH, CA | 300 | 4 | — |
| LDS CHURCH ATWATER | TULARE, CA | 300 | 0 | — |
| ANDERSON VALLEY HIGH SCHOOL | BOONVILLE, CA | 300 | 14 | — |
| CAL TRANS - CRESTVIEW REST AREA | BISHOP, CA | 300 | 9 | — |
| SAN ANTONIO SCHOOL DISTRICT WS | LOCKWOOD, CA | 300 | 18 | — |
| OLD NATIVIDAD RD WS #01 | SALINAS, CA | 300 | 38 | — |
| BERINGER VINEYARDS | CALISTOGA, CA | 300 | 12 | — |
| CREEKSIDE VILLAGE | PENN VALLEY, CA | 300 | 20 | — |
| RAINBOW SPRINGS PUBLIC WATER SYSTEM | SAN FRANCISCO, CA | 300 | 15 | — |
| TAHOE CITY PUD - MADDEN CREEK | TAHOE CITY, CA | 300 | 7 | — |
| TALMONT RESORT IMPROVEMENT DISTRICT | TAHOE CITY, CA | 300 | 15 | — |
| OAKLAND FEATHER RIVER CAMP | QUINCY, CA | 300 | 32 | — |
| SIERRA PACIFIC INDUSTRIES QUINCY | QUINCY, CA | 300 | 8 | — |
| GRIZZLY CREEK RANCH SNJ | PORTOLA, CA | 300 | 10 | — |
| RIVERDALE ESTATES | IRVINE, CA | 300 | 34 | — |
| RIVERBOAT MARINA | ISLETON, CA | 300 | 28 | — |
| EAST WALNUT GROVE [SWS] | SACRAMENTO, CA | 300 | 12 | — |
| BROOKSIDE EQUESTRIAN PARK | ELK GROVE, CA | 300 | 5 | — |
| NORTH RIDGE COUNTRY CLUB | FAIR OAKS, CA | 300 | 10 | — |
| TEAL BEND GOLF COURSE | SACRAMENTO, CA | 300 | 0 | — |
| SACRAMENTO RENDERING | SACRAMENTO, CA | 300 | 8 | — |
| COSUMNES RIVER PRESERVE VISITOR (BLM) | GALT, CA | 300 | 2 | — |
| WILTON CHEVRON | ELK GROVE, CA | 300 | 2 | — |
| SOUTHSIDE ELEMENTARY SCHOOL | HOLLISTER, CA | 300 | 22 | — |
| DUNNEVILLE MARKET & KITCHEN | HOLLISTER, CA | 300 | 14 | — |
| BIG PINE TRACT | YUCAIPA, CA | 300 | 5 | — |
| CSA 70-F MORONGO | SAN BERNARDINO, CA | 300 | 58 | — |
| CAMP GILBOA | LOS ANGELES, CA | 300 | 28 | — |
| 8986 DEEP CREEK ROAD | OAK HILLS, CA | 300 | 6 | — |
| CAMPO ELEMENTARY SCHOOL | PINE VALLEY, CA | 300 | 58 | — |
| BARRETT LAKE MH AND RV LLC | SANTEE, CA | 300 | 65 | — |
| HEAVENLY OAKS | SANTEE, CA | 300 | 29 | — |