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
JON P RAPAZZINI CA4300855 California Transient Non-Community 500
RIVER OAKS/KINGDOM HALL CA5000501 California Transient Non-Community 500
WHITNEY PORTAL CA1400195 California Transient Non-Community 500
OK 99 HWY SWAP MEET CA1502474 California Transient Non-Community 500
CLM - SANDY FLAT CAMPGROUND CA1503203 California Transient Non-Community 500
HUGHSON UNION SD - HUGHSON ELEMENTARY SC CA5000127 California Non-Transient Non-Community 500
GOLDEN ERA PRODUCTIONS CA3301280 California Community 500
PINEBROOK MUTUAL WATER CO CA0500061 California Community 500
ARCO AMPM CA3601119 California Transient Non-Community 500
BIG MEADOW TRAILHEAD CA0900527 California Transient Non-Community 500
EAGLE FALLS CA0900533 California Transient Non-Community 500
THE GROVE CA3500547 California Transient Non-Community 500
TRACT 92 COMMUNITY SERVICES DISTRICT CA5400903 California Community 500
CALTRANS REST STOP CA3700021 California Transient Non-Community 500
CAMP MATHER CA5500031 California Transient Non-Community 500
HOLLISTER HILLS MOTORCYCLE PAR CA3500534 California Transient Non-Community 500
HEARST MEMORIAL STATE BEACH CA4010301 California Transient Non-Community 500
BELL TRAILER CITY CA1900562 California Community 500
UOP CA3901170 California Community 500
PRAIRIE CREEK SP-STATE PARKS CA1210322 California Transient Non-Community 500
CHIMNEY ROCK GOLF COURSE CA2800576 California Transient Non-Community 500
BERRYESSA PARK HDQTRS CA2800573 California Transient Non-Community 500
USFS - WHEELER GORGE CAMPGROUND CA5601716 California Transient Non-Community 500
ESCALON UNIFIED SCHOOL DIST CA3901166 California Non-Transient Non-Community 500
SACRAMENTO RACEWAY CA3400216 California Transient Non-Community 500
POLLARDVILLE CHICKEN/PIZZA CA3901132 California Transient Non-Community 500
CA STATE PARKS & REC DEPT CA3400236 California Transient Non-Community 500
CROWS LANDING COMM SVC DISTRICT CA5000005 California Community 500
LSID - TONYVILLE CA5410007 California Community 500
LSID-STRATHMORE SYSTEM CA5410036 California Community 500
GREENAMYERS BROS WATER SYS CA2200009 California Community 500
DEL MONTE CORP #3 CA4300704 California Transient Non-Community 500
FRANK LEMELIN CA2200010 California Community 500
WALT'S TRUCK STOP CA2000646 California Transient Non-Community 500
KINGS RIVER PACKING COMPANY CA1000514 California Non-Transient Non-Community 500
USFS FRENCH MEADOWS NORTH SHORE CA3100085 California Transient Non-Community 500
QUICK CHECK AZ0415042 California Transient Non-Community 500
PINE MARTIN C G CA0202568 California Transient Non-Community 500
CALIFORNIA STEEL INDUSTRIES CA3601159 California Non-Transient Non-Community 500
EASTIN ARCOLA SCHOOL CA2000599 California Non-Transient Non-Community 500
CUYAMACA OUTDOOR SCHOOL CA3701909 California Non-Transient Non-Community 500
TRACT 92 C.S.D. CA5403004 California Community 500
SALINAS HIGH SCHOOL CA2700717 California Transient Non-Community 500
SONOMA TRANSFER STATION CA4901047 California Transient Non-Community 500
Dear Ridge Inn CA0300045 California Transient Non-Community 500
VALLEY VIEW PARK MWC CA3610046 California Community 499
HIDDEN VALLEY COMMUNITY ASSOCIATION CA3103836 California Community 499
LAKEVIEW HILLS COMMUNITY ASSOC CA3103835 California Community 499
BROADVIEW TERRACE MUTUAL WATER COMPANY CA2000521 California Community 498
HESTER SCHOOL CA5400657 California Non-Transient Non-Community 498