Browse Water Systems
20,012 public water systems in CA.
Public Water Systems Database
Browse 20,012 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| MUSD-EAST UNION HIGH SCHOOL | CA3901160 | California | Non-Transient Non-Community | 500 |
| TRACT 92 C.S.D. | CA5403004 | California | Community | 500 |
| PINE MARTIN C G | CA0202568 | California | Transient Non-Community | 500 |
| ESCALON UNIFIED SCHOOL DIST | CA3901166 | California | Non-Transient Non-Community | 500 |
| ARROYO SECO REC WS | CA2701166 | California | Transient Non-Community | 500 |
| PLACER ELEMENTARY SCHOOL | CA3100070 | California | Non-Transient Non-Community | 500 |
| ANNETT'S MONO VILLAGE | CA2600529 | California | Transient Non-Community | 500 |
| SONOMA TRANSFER STATION | CA4901047 | California | Transient Non-Community | 500 |
| CAMPO HILLS-COUNTY PUBLIC WORKS WASTEWTR | CA3710047 | California | Community | 500 |
| FRANKLIN ELEMENTARY SCHOOL | CA3100071 | California | Non-Transient Non-Community | 500 |
| UOP | CA3901170 | California | Community | 500 |
| SIERRA TAHOE GRANDVIEW | CA0900658 | California | Transient Non-Community | 500 |
| HUGHSON UNION SD - HUGHSON ELEMENTARY SC | CA5000127 | California | Non-Transient Non-Community | 500 |
| AMBLER PARK WATER SUPPLY | CA2700504 | California | Community | 500 |
| VALLEY PACIFIC PETROLEUM SERVICES | CA4200876 | California | Transient Non-Community | 500 |
| KIRKWOOD SUNRISE GRILL | CA0202570 | California | Transient Non-Community | 500 |
| CAMP FAR WEST LAKE, SOUTH SIDE | CA3103207 | California | Transient Non-Community | 500 |
| CALTRANS REST STOP | CA3700021 | California | Transient Non-Community | 500 |
| HEARST MEMORIAL STATE BEACH | CA4010301 | California | Transient Non-Community | 500 |
| MEMORIAL PARK | CA2701113 | California | Transient Non-Community | 500 |
| CEDARVILLE COUNTY WATER DISTRI | CA2500504 | California | Community | 500 |
| CUYAPAIPE/MT LAGUNA SYS | CA3700028 | California | Transient Non-Community | 500 |
| FREMONT MEDICAL CENTER | CA5100178 | California | Transient Non-Community | 500 |
| WILDERNESS GARDENS PRESERVE | CA3700935 | California | Transient Non-Community | 500 |
| JEHOVAH'S WITNESS SIERRA VISTA CONG | CA5000493 | California | Transient Non-Community | 500 |
| SUTTER MEDICAL CENTER OF SANTA ROSA | CA4900836 | California | Non-Transient Non-Community | 500 |
| NACIMIENTO RIVER CAMP | CA2701115 | California | Transient Non-Community | 500 |
| SANTA ROSA MEMORIAL HOSPITAL | CA4900839 | California | Transient Non-Community | 500 |
| LANCASTER NATIONAL SOCCER CENTER | CA1909645 | California | Transient Non-Community | 500 |
| NORTHRIDGE COUNTRY CLUB | CA3400285 | California | Transient Non-Community | 500 |
| BURGER KING-WHITE CITY | OR4194889 | California | Transient Non-Community | 500 |
| ST JOSEPH'S CHURCH | CA5700528 | California | Transient Non-Community | 500 |
| FRICOT TRAINING ACADEMY | CA0000613 | California | Community | 500 |
| WOODLAKE CONSERVATION CENTER | CA0000609 | California | Community | 500 |
| WESTSIDE & CHERRY VALLEY RAILW | CA5500169 | California | Transient Non-Community | 500 |
| CLM - SANDY FLAT CAMPGROUND | CA1503203 | California | Transient Non-Community | 500 |
| QUICK CHECK | AZ0415042 | California | Transient Non-Community | 500 |
| NORTH FORK ELEMENTARY SCHOOL | CA2000612 | California | Non-Transient Non-Community | 500 |
| LINCOLN ELEMENTARY SCHOOL | CA5100147 | California | Transient Non-Community | 500 |
| LINDCREST ELEMENTARY SCHOOL | CA5100148 | California | Transient Non-Community | 500 |
| BURLINGAME HIGH SCHOOL | CA4100569 | California | Non-Transient Non-Community | 500 |
| S M CO PARKS & REC DEPT | CA4100568 | California | Transient Non-Community | 500 |
| CLINE CELLARS | CA4901278 | California | Non-Transient Non-Community | 500 |
| SINGING HILLS RANCH CO | CA3700048 | California | Non-Transient Non-Community | 500 |
| WILLIAMS MIGRANT CAMP | CA0600014 | California | Non-Transient Non-Community | 500 |
| WALT'S TRUCK STOP | CA2000646 | California | Transient Non-Community | 500 |
| HOLLISTER HILLS MOTORCYCLE PAR | CA3500534 | California | Transient Non-Community | 500 |
| WRIGHT ELEMENTARY SCHOOL | CA4900694 | California | Non-Transient Non-Community | 500 |
| HELWIG WINERY | CA0300099 | California | Transient Non-Community | 500 |
| WESTHAVEN MWC | CA1200585 | California | Community | 500 |