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 |
|---|---|---|---|---|
| TAHOE CITY PUD - RUBICON | CA0910012 | California | Community | 703 |
| MOONLIGHT PACKING COMPANY PLANT 7 | CA1000608 | California | Transient Non-Community | 703 |
| CALIFORNIA RESOURCES ELK HILLS | CA1503440 | California | Non-Transient Non-Community | 700 |
| DEL RIO MUTUAL | CA1900130 | California | Community | 700 |
| SPANISH FLAT CALIF WATER DIST | CA2800519 | California | Community | 700 |
| LAUREATE WATER COMPANY | CA4000206 | California | Community | 700 |
| CSP - SUNSET STATE BEACH | CA4410303 | California | Transient Non-Community | 700 |
| SPARTAN VETERINARY SERVICES | CA3302062 | California | Transient Non-Community | 700 |
| COACHELLA VALLEY WTR DIST | CA3310039 | California | Community | 700 |
| CUYAMA COMMUNITY SERVICES DISTRICT | CA4210009 | California | Community | 700 |
| GRIZZLY ISLAND WILDLIFE AREA | CA4800756 | California | Transient Non-Community | 700 |
| MAE HENSLEY SCHOOL | CA5000256 | California | Transient Non-Community | 700 |
| SAMOA VILLAGE MOBILE HOME EST | CA3610059 | California | Community | 700 |
| CHANSALL MUTUAL WATER COMPANY | CA1900686 | California | Community | 700 |
| WILSONA ELEMENTARY SCHOOL | CA1900883 | California | Non-Transient Non-Community | 700 |
| BRIDGE BAY RESORT | CA4500109 | California | Transient Non-Community | 700 |
| SANTA CLARA UNIVERSITY | CA4300707 | California | Community | 700 |
| TUSD - CUMMINGS VALLEY SCHOOL | CA1502773 | California | Non-Transient Non-Community | 700 |
| BLACK BUTTE LAKE, BUCKHORN RA, USCOE | CA5200672 | California | Transient Non-Community | 700 |
| BEACON TRUCK STOP KINGMAN | AZ0408073 | California | Transient Non-Community | 700 |
| MC CLELLAN MHP | CA3400179 | California | Community | 700 |
| JUNCTION SCHOOL DISTRICT | CA4500163 | California | Non-Transient Non-Community | 700 |
| TAHOE VALLEY ELEMENTARY SCHOOL | CA0900648 | California | Non-Transient Non-Community | 700 |
| ART/DORIS SCHNAIBLE | CA3900708 | California | Community | 700 |
| RAINBO BEACH | CA3600356 | California | Transient Non-Community | 700 |
| ANDERSON UNION HIGH SCHOOL | CA4500041 | California | Non-Transient Non-Community | 700 |
| FORT JONES, TOWN OF | CA4710003 | California | Community | 695 |
| LINNELL FARM LABOR CENTER | CA5400631 | California | Community | 694 |
| ELKHORN SCHOOL WS | CA2700577 | California | Non-Transient Non-Community | 694 |
| LOCH LOMOND MUTUAL WATER CO | CA1700518 | California | Community | 693 |
| CUYAMACA SP - PASO PICACHO | CA3710311 | California | Transient Non-Community | 691 |
| MOON VALLEY WATER SYSTEM | CA4900871 | California | Community | 691 |
| SEVILLE WATER COMPANY | CA5400550 | California | Community | 691 |
| CAL AMERICAN - YERBA BUENA | CA5610006 | California | Community | 690 |
| HEMLOCK MUTUAL WATER CO. | CA1910053 | California | Community | 686 |
| SNOWSHOE SPRINGS ASSN. | CA0510011 | California | Community | 686 |
| HUGHSON HIGH SCHOOL | CA5000119 | California | Transient Non-Community | 685 |
| La Posta Casino | 090600053 | California | Non-Transient Non-Community | 685 |
| HUMBOLDT BAY MWD | CA1210013 | California | Community | 680 |
| EL CAMINO REAL WS #16 | CA2700575 | California | Transient Non-Community | 679 |
| LEWISTON COMMUNITY SERVICES DISTRICT | CA5301002 | California | Community | 677 |
| VALLEY VIEW PARK MUTUAL WATER | CA3600333 | California | Community | 676 |
| KEYES UNION ELEMENTARY SCHOOL | CA5000120 | California | Non-Transient Non-Community | 675 |
| BLUE LAKE UPPER BLUE | CA0202555 | California | Transient Non-Community | 672 |
| ANNA KIRCHGATER ELEMENTARY SCHOOL | CA3400246 | California | Transient Non-Community | 672 |
| LEE VINING PUBLIC UTILITY DISTRICT | CA2610005 | California | Community | 672 |
| ALIANZA CHARTER SCHOOL/WCSA | CA4400757 | California | Non-Transient Non-Community | 670 |
| LAKE MORENA'S OAK SHORES MWC | CA3700923 | California | Community | 670 |
| RIO TIERRA JUNIOR HIGH SCHOOL | CA3400263 | California | Non-Transient Non-Community | 670 |
| ARBOR VILLAGE | MI0040223 | California | Community | 670 |