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 |
|---|---|---|---|---|
| SIERRA PACIFIC IND - ANDERSON | CA4500191 | California | Non-Transient Non-Community | 250 |
| RIVER ESTATES MUTUAL WATER COMPANY | CA2300605 | California | Community | 250 |
| MILL CREEK STATE PARK | CA0800659 | California | Transient Non-Community | 250 |
| MODOC NATIONAL WILDLIFE REFUGE | CA2500208 | California | Transient Non-Community | 250 |
| CRESTMORE HEIGHTS MWC | CA3301173 | California | Community | 250 |
| CASA DE FRUTA WATER SYSTEM | CA4300611 | California | Community | 250 |
| DATE PALM MOBILE PARK | CA3301177 | California | Community | 250 |
| SOLEDAD MOUNTAIN PROJECT WATER SYSTEM | CA1503664 | California | Non-Transient Non-Community | 250 |
| MEYERS WATER CO. | CA2800530 | California | Community | 250 |
| LIGHTHOUSE BAPTIST CHURCH | CA0707614 | California | Non-Transient Non-Community | 250 |
| SACRAMENTO YACHT CLUB | CA5700588 | California | Transient Non-Community | 250 |
| RAMONA OAKS RV RESORT | CA3702338 | California | Non-Transient Non-Community | 250 |
| BAGDASARIAN PACKING THERMAL, LLC | CA3301935 | California | Non-Transient Non-Community | 250 |
| STATE LINE RV PARK | CA4700820 | California | Transient Non-Community | 250 |
| QUEEN MOTEL WS | CA2700706 | California | Community | 250 |
| CUYAMA ELEMENTARY SCHOOL | CA4200879 | California | Non-Transient Non-Community | 250 |
| FRANZIA WINERY | CA3900798 | California | Non-Transient Non-Community | 250 |
| MOUNTAIN VIEW MOBILE ESTATES, LLC | CA4900798 | California | Community | 250 |
| RAM NAAM MANDALI CHURCH OF MODESTO | CA5000467 | California | Transient Non-Community | 250 |
| BLACK BUTTE ELEMENTARY SCHOOL | CA4500183 | California | Non-Transient Non-Community | 250 |
| REDWOOD MEMORIAL HOSPITAL | CA1200779 | California | Non-Transient Non-Community | 250 |
| FRESNO VALVES & CASTINGS | CA1000541 | California | Non-Transient Non-Community | 250 |
| OAKLAND COUNCIL B.S.A. | CA5500134 | California | Transient Non-Community | 250 |
| CAMP WOLFEBORO | CA0500055 | California | Transient Non-Community | 250 |
| ADAIR KUNDE, LLC | CA4901227 | California | Non-Transient Non-Community | 250 |
| YOSEMITE WHOLESALE | CA2400139 | California | Non-Transient Non-Community | 250 |
| BILL & KATHY'S | CA5700551 | California | Non-Transient Non-Community | 250 |
| CENTRAL GAITHER SCHOOL | CA5100150 | California | Non-Transient Non-Community | 250 |
| STANDARD WATER COMPANY | CA5500023 | California | Non-Transient Non-Community | 250 |
| CORRAL DRIVE-IN THEATER | OR4191794 | California | Transient Non-Community | 250 |
| MALVERN COURTS MHP | PA1150011 | California | Community | 250 |
| LAKE WOHLFORD RESORT | CA3700919 | California | Community | 250 |
| Valerie Jean Date Shop | CA3301714 | California | Transient Non-Community | 250 |
| REGENCY II MOBILE HOME PARK | CA3400162 | California | Community | 250 |
| ALPINE MEADOWS PROPERTY OWNERS ASSO | CA3100041 | California | Community | 250 |
| Sutter Ridge North Mutual | CA0300013 | California | Community | 250 |
| CSP-FREMONT PEAK | CA3510300 | California | Transient Non-Community | 250 |
| SUMMITT CHARTER ACADEMY | CA5403133 | California | Non-Transient Non-Community | 250 |
| CAMP SINGING PINES | CA1900617 | California | Transient Non-Community | 250 |
| DELUX MOBILE PARK | CA4500070 | California | Community | 250 |
| ALTA VISTA WILDWOOD WATER CO | CA2701413 | California | Community | 250 |
| WONDERFUL NURSERIES, LLC | CA1504001 | California | Non-Transient Non-Community | 250 |
| WARNER UNIFIED SCHOOL DISTRICT | CA3701010 | California | Non-Transient Non-Community | 250 |
| CHOLAME ROAD WS #2 | CA2701513 | California | Transient Non-Community | 250 |
| CHICO MOBILE COUNTRY CLUB | CA0400044 | California | Community | 250 |
| SHAFFER ELEMENTARY SCHOOL | CA1800575 | California | Non-Transient Non-Community | 250 |
| HESS WINERY | CA2801016 | California | Community | 250 |
| HILL COUNTRY COMMUNITY CLINIC & WELLNESS | CA4500341 | California | Non-Transient Non-Community | 250 |
| NEIGHBORHOOD CHURCH | CA0707557 | California | Non-Transient Non-Community | 250 |
| DIXON LITTLE LEAGUE | CA4800744 | California | Transient Non-Community | 250 |