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.

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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