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 |
|---|---|---|---|---|
| REITER BERRY WATER SYSTEM | WATSONVILLE, CA | 96 | 21 | — |
| OCOTILLO OASIS, LLC | SAN MARCOS, CA | 96 | 123 | — |
| CALIFORNIA CITRUS ASSOCIATION | EXETER, CA | 96 | 123 | — |
| JEFF RUNQUIST WINERY | PLYMOUTH, CA | 95 | 0 | — |
| ADAM'S VEGETABLE OILS | ARBUCKLE, CA | 95 | 10 | — |
| LARRY A SHEHADEY DAIRY | FRESNO, CA | 95 | 6 | — |
| LITTLE RIVER INN | LITTLE RIVER, CA | 95 | 28 | — |
| MINTURN HULLER | CHOWCHILLA, CA | 95 | 4 | — |
| SUMMERHILL MHP WS | SANTA CRUZ, CA | 95 | 14 | — |
| CAPTAIN COOPER SCHOOL WS | CARMEL, CA | 95 | 13 | — |
| Z D WINES | NAPA, CA | 95 | 3 | — |
| BUTANO STATE PARK - CSP | FELTON, CA | 95 | 10 | — |
| MONTGOMERY CREEK SCHOOL | MONTGOMERY CREEK, CA | 95 | 32 | — |
| TUCKER OAKS EAST WATER DISTRICT | ANDERSON, CA | 95 | 10 | — |
| TNF-INDIAN VALLEY/ROCKY REST CG | NEVADA CITY, CA | 95 | 3 | — |
| TNF-CHAPMAN CG | NEVADA CITY, CA | 95 | 9 | — |
| BIG SPRINGS UNION ELEM. SCHOOL | MONTAGUE, CA | 95 | 9 | — |
| FRIEDMAN BROTHERS HARDWARE | SANTA ROSA, CA | 95 | 14 | — |
| CSP LABS & MICRO PARADOX | PLEASANT GROVE, CA | 95 | 3 | — |
| SHADY GROVE MOBILE HOME PARK, LLC | VENTURA, CA | 95 | 45 | — |
| YOKOHL MUTUAL WATER CO | VISALIA, CA | 95 | 28 | — |
| RMRC-LOWER COFFEE CAMP DAY USE | OVERLAND PARK, CA | 95 | 2 | — |
| MILK SPECIALTIES GLOBAL | VISALIA, CA | 95 | 7 | — |
| CDF - OWENS VALLEY CONSERVATION CAMP | BISHOP, CA | 94 | 11 | — |
| MAYFLOWER PARK | BLYTHE, CA | 94 | 28 | — |
| RANCHO DEL PARADISO-CAL WATER SVC (PUC) | SAN JOSE, CA | 94 | 4 | — |
| BELLA VISTA WATER SYS | MORAGA, CA | 93 | 18 | — |
| REDWOODS MAIN WATER SYSTEM | OAKHURST, CA | 93 | 0 | — |
| LOMAS DEL SOL MWS | AROMAS, CA | 93 | 38 | — |
| SAN MIGUEL WS #22 | SALINAS, CA | 93 | 14 | — |
| MICHELE MUTUAL WATER COMPANY | FULTON, CA | 93 | 21 | — |
| LYTTON SPRINGS WINERY | CUPERTINO, CA | 93 | 6 | — |
| DEL ORO WATER CO - METROPOLITAN DISTRICT | CHICO, CA | 92 | 21 | — |
| WONDER ACRES WATER SYSTEM | CALIFORNIA CITY, CA | 92 | 32 | — |
| SUNNYGEM JUICE PLANT | BUTTONWILLOW, CA | 92 | 0 | — |
| LEISURE TIME RV PARK | SACRAMENTO, CA | 92 | 11 | — |
| OAK MANOR WS | SALINAS, CA | 92 | 72 | — |
| VISTA DEL TORO WS | CORRAL DE TIERRA, CA | 92 | 211 | — |
| MCCOY RD WS #05 | SALINAS, CA | 92 | 113 | — |
| ROBLEY PROPERTY MWS | SALINAS, CA | 92 | 26 | — |
| VICTORY RANCH | MORENO VALLEY, CA | 92 | 11 | — |
| MAURLAND MANOR WATER SYSTEM | STOCKTON, CA | 92 | 6 | — |
| CORTLAND PINES MUTUAL WATER CO | SHINGLETOWN, CA | 92 | 6 | — |
| RAPID RIVER MOBILEHOME PARK | MORAGA, CA | 92 | 14 | — |
| TUD-PEACEFUL PINES WATER SYSTEM | SONORA, CA | 92 | 3 | — |
| NISHI QUALITY FLOWERS, INC. | VENTURA, CA | 92 | 9 | — |
| EBRPD - SUNOL REGIONAL WILDERNESS | OAKLAND, CA | 91 | 0 | — |
| THE MADRONES | PHILO, CA | 91 | 0 | — |
| LIVINGSTON PROPERTIES | MERCED, CA | 91 | 14 | — |
| ENCINAL RD WS #01 | SALINAS, CA | 91 | 395 | — |