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 |
|---|---|---|---|---|
| DAIRYLAND SCHOOL | CHOWCHILLA, CA | 247 | 45 | — |
| COLUSA CO. SERVICE AREA #1-CENTURY RANCH | CITY OF COLUSA, CA | 246 | 10 | — |
| ESALEN INSTITUTE WS | BIG SUR, CA | 246 | 43 | — |
| AUTOCAMP SEQUOIA | THREE RIVERS, CA | 246 | 24 | — |
| RMRC-STONY CREEK CAMPGROUND | OVERLAND PARK, CA | 246 | 7 | — |
| GUARDIAN INDUSTRIES LLC | KINGSBURG, CA | 245 | 19 | — |
| E&J GALLO WINERY | FRESNO, CA | 245 | 10 | — |
| LLANO MUTUAL WATER COMPANY | LLANO, CA | 245 | 14 | — |
| E & J GALLO WINERY | LIVINGSTON, CA | 245 | 6 | — |
| SNOWFLOWER | EMIGRANT GAP, CA | 245 | 2 | — |
| GRIMMWAY FARMS COACHELLA VALLEY FACILITY | BAKERSFIELD, CA | 245 | 34 | — |
| LAVA BEDS NATIONAL MONUMENT | TULELAKE, CA | 245 | 0 | — |
| JEHOVAH'S WITNESSES - KINGDOM HALL | YOLO, CA | 245 | 25 | — |
| ORLAND ESTATES MOBILE H.P. | BILLINGS, CA | 244 | 5 | — |
| CALBEE AMERICA INCORPORATED | MADERA, CA | 244 | 29 | — |
| FOSTER FARMS DELHI FEEDMILL COLLIER ROAD | DELHI, CA | 244 | 56 | — |
| COLLEGE PARK MUTUAL WATER COMPANY | PENNGROVE, CA | 244 | 11 | — |
| LE TRIANON RESORT | MILL VALLEY, CA | 243 | 24 | — |
| MONTEREY DUNES MWA | MOSS LANDING, CA | 243 | 15 | — |
| COUNTRYSIDE ESTATES MWC | SALINAS, CA | 243 | 26 | — |
| MOUNTAIN VALLEY COMMUNITY CHURCH | SQUAW VALLEY, CA | 242 | 4 | — |
| CHARLES BROWN WATER COMPANY | SHOSHONE, CA | 242 | 79 | — |
| FCSA 30 - EL PORVENIR | FRESNO, CA | 241 | 186 | — |
| STARLITE COMMUNITY SERVICE DISTRICT | BISHOP, CA | 241 | 15 | — |
| TECOPA WATER VENDING MACHINE | TECOPA, CA | 241 | 3 | — |
| SILENT VALLEY CLUB | BANNING, CA | 241 | 23 | — |
| LUNDBERG FAMILY FARM | RICHVALE, CA | 240 | 19 | — |
| MEADOW LAKES CLUB | FRESNO, CA | 240 | 24 | — |
| DANTE CLUB OF FRESNO | FRESNO, CA | 240 | 14 | — |
| PINE CREEK VILLAGE | MAMMOTH LAKES, CA | 240 | 89 | — |
| CHANAC CREEK MUTUAL WATER COMPANY | TEHACHAPI, CA | 240 | 21 | — |
| LA VINA SCHOOL | MADERA, CA | 240 | 32 | — |
| CAL SHASTA CLUB | PASO ROBLES, CA | 240 | 9 | — |
| RANCHO MARCELINO WATER | SOLVANG, CA | 240 | 5 | — |
| MOUNTAIN ELEMENTARY SCHOOL | SOQUEL, CA | 240 | 11 | — |
| MILLVILLE ELEMENTARY SCHOOL | MILLVILLE, CA | 240 | 10 | — |
| ASH CREEK FIRE STATION-STNF | MT. SHASTA, CA | 240 | 9 | — |
| LASSEN VNP - BUTTE LAKE | MINERAL, CA | 240 | 0 | — |
| RMRC-HOSPITAL FLAT CAMPGROUND | OVERLAND PARK, CA | 240 | 0 | — |
| NPS-COLD SPRINGS | THREE RIVERS, CA | 240 | 2 | — |
| MD 05 MOUNTAIN RANCHES | MADERA, CA | 239 | 17 | — |
| FISHCAMP MUTUAL WATER COMPANY | MADERA, CA | 239 | 6 | — |
| DEPARTMENT OF WATER AND POWER | BIG BEAR LAKE, CA | 239 | 8 | — |
| KENNOLYN CAMP | SOQUEL, CA | 239 | 26 | — |
| CACHEVILLE SERVICE DIST | WOODLAND, CA | 239 | 77 | — |
| CANYON SCHOOL | CANYON, CA | 238 | 20 | — |
| RAINBIRD VALLEY MWC | WELDON, CA | 238 | 149 | — |
| CAMP LAKOTA WATER SYSTEM | INGLEWOOD, CA | 238 | 5 | — |
| BALLICO CSD | BALLICO, CA | 238 | 1 | — |
| BELLA UNION WINERY | ST. HELENA, CA | 238 | 19 | — |