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
GIBSON ELEMENTARY SCHOOL CA1000275 California Transient Non-Community 550
PATTERSON TRACT CSD CA5402038 California Community 550
ACACIA PARK CA2701201 California Community 550
PARLIER MIGRANT CAMP CA1000331 California Non-Transient Non-Community 550
BUENA VISTA WC CA2701870 California Community 550
SAN VICENTE WATER COMPANY CA4210005 California Community 550
LANDALE MUTUAL WATER COMPANY CA1900809 California Community 550
SUNNYSIDE UNION ELEMENTARY CA5400562 California Non-Transient Non-Community 550
MORGAN HILL USD-ENCINAL SCHOOL CA4300589 California Non-Transient Non-Community 549
CLAYTON PALMS WATER CA0707603 California Community 549
SISKIYOU LAKE HIGHLANDS MWC CA4700880 California Community 549
CALPELLA COUNTY WATER DISTRICT CA2300507 California Community 548
TUD - MONTE GRANDE WATER SYSTEM CA5510030 California Community 548
TROPICO SCHOOL WATER SYSTEM CA1502288 California Non-Transient Non-Community 547
BUSHYTAIL, MNRVILLE, CLARK SP CA5300071 California Transient Non-Community 547
CASE RIETVELD CA3900856 California Community 546
KORBEL BROTHERS WINERY CA4900999 California Non-Transient Non-Community 546
LLANO DEL RIO WATER COMPANY CA1900849 California Community 545
FULLER ACRES MUTUAL WATER COMPANY CA1500296 California Community 545
GOLDEN STATE WATER COMPANY - LAKE MARIE CA4210022 California Community 545
FRANKLIN ELEMENTARY SCHOOL CA5100139 California Non-Transient Non-Community 545
CHIRIACO SUMMIT WATER DIST. CA3301115 California Community 544
DARR WATER CO CA3601013 California Non-Transient Non-Community 543
RIO VISTA MOBILE HOME PARK CA5200508 California Community 543
VAN LOON MUTUAL WATER COMPANY CA3600334 California Community 542
LOMA PRIETA JUSD-LOMA PRIETA SCHOOL CA4300721 California Non-Transient Non-Community 542
HAYWARD FLAT CAMPGROUND CA5300072 California Transient Non-Community 540
SHERWOOD MOBILE HOME PARK CA1900907 California Community 540
BRITTAN ELEMENTARY SCHOOL CA5100146 California Non-Transient Non-Community 540
GEYSERVILLE WATER WORKS CA4900520 California Community 540
CLM-HOLEY MEADOW CAMPGROUND CA5400777 California Transient Non-Community 540
HOME GARDENS SCHOOL CA3301168 California Transient Non-Community 540
RIVERVIEW MOBILE HOME ESTATES CA5000090 California Community 540
LANARE COMMUNITY SERVICES DIST CA1000053 California Community 540
LAURENCE MC GEE SCHOOL CA1900070 California Non-Transient Non-Community 538
WOODLAND PARK MUTUAL WATER CO CA4000506 California Community 538
WOODWARD RESERVOIR WATER SYSTEM CA5000165 California Transient Non-Community 537
GILROY USD-RUCKER SCHOOL CA4300605 California Non-Transient Non-Community 536
EL DORADO ID - OUTINGDALE CA0910018 California Community 535
WSL - SURF RANCH CA1600608 California Transient Non-Community 535
GABILAN WC CA2700586 California Community 535
SID - GIBSON CANYON CA4810010 California Community 535
Lone Pine 090600138 California Community 535
OCCIDENTAL COMMUNITY SERVICES DISTRICT CA4900536 California Community 533
GROVER HOT SPRINGS STATE PARK CA0202514 California Transient Non-Community 533
TUD-CUESTA CENTER-LAMBERT LAKES CA5510027 California Community 533
COLUSA INDUSTRIAL PROPERTIES CA0600065 California Non-Transient Non-Community 533
MENF-FOUTS SPRINGS CG CA0600076 California Transient Non-Community 531
ALLENSWORTH CSD CA5400544 California Community 531
PALMS RIVER RESORT CA3600372 California Community 531