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 |
| TECATE SUPERMARKET | EL CAJON, CA | 25 | 10 | — |
| APPLE WATER IS GOOD | JULIAN, CA | 25 | 11 | — |
| CALTRANS, BUCKMAN SPRINGS REST AREA | EL CENTRO, CA | 25 | 13 | — |
| DESERT IRONWOODS RESORT INC. | BORREGO SPRINGS, CA | 25 | 29 | — |
| MANZANITA DINER | PINE VALLEY, CA | 25 | 34 | — |
| OAKOASIS OPEN SPACE PRESERVE | SAN DIEGO, CA | 25 | 7 | — |
| OCOTILLO WELLS - HOLMES CAMP | BORREGO SPRINGS, CA | 25 | 4 | — |
| STEVENS MOTEL WATER SYSTEM | STOCKTON, CA | 25 | 4 | — |
| OLDE TOWNE | RIPON, CA | 25 | 10 | — |
| COUNTRY MARKET | TRACY, CA | 25 | 3 | — |
| TRACY WILDLIFE ASSOC | TRACY, CA | 25 | 5 | — |
| FINLEYS | MANTECA, CA | 25 | 100 | — |
| LOWER SAC PLAZA | STOCKTON, CA | 25 | 14 | — |
| CALIFORNIA FRUIT PROCESSORS | STOCKTON, CA | 25 | 10 | — |
| WATERLOO CALIFORNIA RESTAURANT | STOCKTON, CA | 25 | 18 | — |
| DEVIL MOUNTAIN WHOLESALE NURSERY | SAN RAMON, CA | 25 | 15 | — |
| RIVER MILL, THE | FRENCH CAMP, CA | 25 | 4 | — |
| BASALITE - TRACY | DIXON, CA | 25 | 28 | — |
| LOCKEFORD SPRINGS GOLF COURSE | ACAMPO, CA | 25 | 36 | — |
| EUSD-GATEWAY CHARTER | ESCALON, CA | 25 | 4 | — |
| SAN-I-PAK INC | TRACY, CA | 25 | 13 | — |
| O-G PACKING CO | STOCKTON, CA | 25 | 45 | — |
| FRANK C ALEGRE TRUCKING INC WS | LODI, CA | 25 | 21 | — |
| MCHENRY AVE RECREATION AREA | OAKDALE, CA | 25 | 6 | — |
| ENVIROPLEX, INC | LIVERMORE, CA | 25 | 54 | — |
| TURNER ROAD VINTNERS (WEST) | LODI, CA | 25 | 10 | — |
| VALLEY LANDSCAPING & MAINT INC | LODI, CA | 25 | 7 | — |
| ZUCKERMAN HERITAGE-MCDONALD | STOCKTON, CA | 25 | 2 | — |
| FAITH COMMUNITY CHURCH OF THE NAZARENE | LODI, CA | 25 | 1 | — |
| BEAR CREEK COMMUNITY CHURCH | LODI, CA | 25 | 7 | — |
| BEAR CREEK WINERY | LODI, CA | 25 | 13 | — |
| SOUTHWINDS CHURCH OF TRACY | TRACY, CA | 25 | 20 | — |
| KOREAN PRESBYTERIAN CHURCH | STOCKTON, CA | 25 | 8 | — |
| MCLAUGHLIN WASTE EQUIPMENT INC | GALT, CA | 25 | 36 | — |
| HOME CHURCH, THE | LODI, CA | 25 | 3 | — |
| J B HUNT TRANSPORT INC | LOWELL, CA | 25 | 9 | — |
| AUSTIN INDUSTRIAL PARK WATER SYSTEM | MODESTO, CA | 25 | 37 | — |
| ST MICHAELS WATER SYSTEM | STOCKTON, CA | 25 | 12 | — |
| DOWN RIVER AN ITW COMPANY | STOCKTON, CA | 25 | 22 | — |
| MORADA PRODUCE | LINDEN, CA | 25 | 1 | — |
| VICTORIA ISLAND FARMS | HOLT, CA | 25 | 2 | — |
| ST PATRICK CATHOLIC CHURCH WTR SYS | RIPON, CA | 25 | 6 | — |
| WOODBRIDGE PIZZA WATER SYSTEM | WOODBRIDGE, CA | 25 | 4 | — |
| LOCKEFORD HOLDINGS WATER DISTRICT LLC | LA JOLLA, CA | 25 | 20 | — |
| LOVELACE TRANSFER STATION | STOCKTON, CA | 25 | 4 | — |
| OLD RIVER GOLF COURSE | TRACY, CA | 25 | 8 | — |
| BIGLIERI FARM MARKET | CLEMENTS, CA | 25 | 11 | — |
| GICO VALLEY FARMS | RIPON, CA | 25 | 6 | — |
| PRIMA FRUTTA PACKING | LINDEN, CA | 25 | 2 | — |
| CLEMENTS RIDGE PRODUCE | CLEMENTS, CA | 25 | 2 | — |