Browse Water Systems

19,626 public water systems in CA.

Public Water Systems Database

Browse 19,626 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
SHANGRI-LA TRAILER COURT CA0800652 California Community 170
VALLEY TRAILER COURT CA5602119 California Community 170
LEONI MEADOWS CAMP CA0900113 California Transient Non-Community 169
PLAZA MOBILE HOME PARK CA4900787 California Community 169
VISALIA/ SEQUOIA SOUTH KOA CA5400507 California Transient Non-Community 169
LOS ANGELES WORLD AIRPORTS CA1910138 California Non-Transient Non-Community 169
MOOSE CAMP CA4500017 California Transient Non-Community 169
LAKE SHASTA PINES RV PARK & CAMPGROUND CA4500101 California Community 168
RUTH LAKE C S D CA5300058 California Transient Non-Community 168
KOINONIA CONFERENCE GROUNDS CA4400709 California Transient Non-Community 168
KNIGHTS FERRY COMM. SVC. DIST. CA5000008 California Community 168
MELODY WOODS WATER COMPANY CA4300525 California Community 168
MOTEL SIX PALMS CA3301727 California Transient Non-Community 168
COLUSA LANDING CA0600009 California Transient Non-Community 168
HYNES ESTATES MUTUAL WATER CO. CA3000519 California Community 168
WESTMINSTER WOODS CAMP CA4901095 California Non-Transient Non-Community 168
USFS EUREKA VALLEY CAMPGD CA5500173 California Transient Non-Community 168
MCGEE CREEK CAMPGROUND CA2600519 California Transient Non-Community 168
YOSEMITE VIEW LODGE CA2202041 California Transient Non-Community 168
CWS - FREMONT VALLEY CA1500333 California Community 167
CRAIN WALNUT SHELLING, INC. CA5200015 California Non-Transient Non-Community 167
BISHOP COUNTRY CLUB CA1400014 California Transient Non-Community 167
RENAISSANCE HIGH SCHOOL CA4400758 California Non-Transient Non-Community 166
CAMP CAZADERO CA4901110 California Transient Non-Community 166
STRUVE RD WS #02 CA2700772 California Community 166
WILDWOOD WC CA2702276 California Community 166
LODI USD-TURNER ACADEMY AT TOKAY COLONY CA3900848 California Non-Transient Non-Community 166
MATSUI NURSERY WS CA2701931 California Non-Transient Non-Community 165
MT. EDEN MUTUAL WATER COMPANY CA4300831 California Community 165
CUDDEBACK GRAMMAR SCHOOL CA1200681 California Non-Transient Non-Community 165
GRENADA ELEMENTARY SCHOOL CA4700615 California Non-Transient Non-Community 165
SAN JOAQUIN ESTATES MUTUAL WATER COMPANY CA1500575 California Community 165
OKIZU FOUNDATION CA0500108 California Transient Non-Community 165
PACIFIC POINT CHRISTIAN SCHOOL CA4300610 California Non-Transient Non-Community 165
SAPUTO DAIRY FOOD USA CA5403118 California Non-Transient Non-Community 165
BUTTEVILLE UNION SCHOOL CA4700559 California Non-Transient Non-Community 165
JUNCO MOIBLE HOME PARK CA1100530 California Community 165
ADELA CRUZ CA5700622 California Transient Non-Community 165
U.S. FOREST SERVICE CA5300039 California Transient Non-Community 165
WILLIAMS MUTUAL WATER COMPANY CA5400718 California Community 165
T & A ONIONS CA3500926 California Non-Transient Non-Community 165
KISTLER K ARROW CAMP CA5500105 California Transient Non-Community 165
PSMCSD - VIERRA ESTATES WS CA2702007 California Community 164
GREELEY RV PARK CO0162302 California Community 164
HOLLISTER HILLS-LODGE WELL CA3510305 California Transient Non-Community 164
YMCA CAMP SEQUOIA GAINES CA1000130 California Transient Non-Community 164
CARMEL BY THE RIVER RV PARK WS CA2701297 California Transient Non-Community 164
SUPERIOR PACKING CO CA4800615 California Non-Transient Non-Community 164
VIEJO LTD CA3901421 California Non-Transient Non-Community 163
HARTLAND CHRISTIAN CAMP CA5400505 California Community 163