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 |
| PURINA MILLS INC | TURLOCK, CA | 25 | 11 | — |
| ROBERTS FERRY NUT CO, INC (WS) | WATERFORD, CA | 25 | 10 | — |
| J & J FARM FRESH PRODUCE & BAKERY | HUGHSON, CA | 25 | 4 | — |
| MOUNTAIN VIEW CHATOM RECREATION | TURLOCK, CA | 25 | 31 | — |
| RESENDIZ FRUIT BARN | HUGHSON, CA | 25 | 4 | — |
| OAKDALE CHEESE & SPECIALTIES | OAKDALE, CA | 25 | 0 | — |
| COUNTRY STORE WATER SYSTEM | TURLOCK, CA | 25 | 4 | — |
| BURCHELL NURSERY, INC | OAKDALE, CA | 25 | 0 | — |
| KIERNAN/MCHENRY WATER COMPANY, INC | LONG BEACH, CA | 25 | 15 | — |
| OASIS MARKET | CROWS LANDING, CA | 25 | 30 | — |
| WEST COAST SAND & GRAVEL | MODESTO, CA | 25 | 9 | — |
| CHARITY WAY WATER SYSTEM | MODESTO, CA | 25 | 1 | — |
| PENTECOST PROPERTIES WATER SYSTEM | MODESTO, CA | 25 | 0 | — |
| MODESTO CHRISTIAN CENTER (WATERSYSTEM) | MODESTO, CA | 25 | 12 | — |
| KEYES 76 (WATER SYSTEM) | TURLOCK, CA | 25 | 4 | — |
| GOLDEN VALLEY ALMONDS | DENAIR, CA | 25 | 4 | — |
| BEL PASSI BASEBALL | MODESTO, CA | 25 | 13 | — |
| VILLAGE FOOD MART WATER SYSTEM | TURLOCK, CA | 25 | 2 | — |
| LOS INDIOS WATER SYSTEM | MODESTO, CA | 25 | 2 | — |
| ELKS LODGE 1282 | MODESTO, CA | 25 | 5 | — |
| WATERFORD SPORTSMEN'S CLUB | MODESTO, CA | 25 | 16 | — |
| WESTLEY PROPERTY LLC | TRACY, CA | 25 | 4 | — |
| PIONEER EQUINE HOSPITAL WATER SYSTEM | OAKDALE, CA | 25 | 9 | — |
| SALIDA HULLING ASSOCIATION WATER SYSTEM | SALIDA, CA | 25 | 0 | — |
| FISHER NUT | MODESTO, CA | 25 | 3 | — |
| CALIFORNIA TRANSPLANTS LLC | NEWMAN, CA | 25 | 0 | — |
| CEBRO FROZEN FOODS (EH) | NEWMAN, CA | 25 | 6 | — |
| MID VALLEY AG | OAKDALE, CA | 25 | 0 | Clean |
| GROWERS DIRECT NUT COMPANY | HUGHSON, CA | 25 | 12 | — |
| ZANSCO | MODESTO, CA | 25 | 0 | — |
| SOUTH SAN JOAQUIN IRRIGATION DISTRICT | RIPON, CA | 25 | 2 | — |
| NINO'S PLACE WATER SYSTEM | MODESTO, CA | 25 | 8 | — |
| HARMONY VILLAGE | MARYSVILLE, CA | 25 | 27 | — |
| VERONA VILLAGE RIVER RESORT | NICOLAUS, CA | 25 | 6 | — |
| RANCH HOUSE RESTAURANT & BAR | YUBA CITY, CA | 25 | 16 | — |
| OSWALD WATER SYSTEM | YUBA CITY, CA | 25 | 9 | — |
| HOLT 7518 | PLEASANT GROVE, CA | 25 | 0 | — |
| WILCOX OAKS GOLF CLUB | RED BLUFF, CA | 25 | 3 | — |
| DEER CREEK LODGE | MILL CREEK, CA | 25 | 3 | — |
| GRACE COMMUNITY FELLOWSHIP | RED BLUFF, CA | 25 | 3 | — |
| TEHAMA CO.-CONE GROVE PARK | RED BLUFF, CA | 25 | 4 | — |
| TEHAMA CO.-RIVER PARK | RED BLUFF, CA | 25 | 3 | — |
| TEHAMA CO.-RIDGEWAY PARK | RED BLUFF, CA | 25 | 4 | — |
| TEHAMA CO.-MILL CREEK PARK | RED BLUFF, CA | 25 | 4 | — |
| VILLAGE AT THE HIGHLANDS | PENRYN, CA | 25 | 0 | — |
| CHURCH OF LATTER DAY SAINTS | ANDERSON, CA | 25 | 0 | — |
| HIGHLAND RANCH LLC | PENRYN, CA | 25 | 0 | — |
| ANTOINETTE MUTUAL WATER CO | RED BLUFF, CA | 25 | 7 | — |
| STONY CREEK LODGE | SQUAW VALLEY, CA | 25 | 27 | — |
| WESTERN HOLIDAY LODGE | THREE RIVERS, CA | 25 | 32 | — |