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.

Clear
System Name PWSID State Type Population Served
CSA 70 W-4 PIONEERTOWN CA3600196 California Community 470
MID - MC CLURE POINT REC AREA CA2209063 California Transient Non-Community 470
U.S. COAST GUARD TRAINING CENTER CA4910701 California Community 469
TEHACHAPI CHURCH OF THE NAZARENE CA1502753 California Non-Transient Non-Community 469
EDWARDS AFB - AIR FORCE RESEARCH LAB CA1510702 California Non-Transient Non-Community 469
BELLEVIEW OAKS MUTUAL WATER CO CA5500042 California Community 468
VISTA GRANDE WATER SYSTEM CA5200012 California Community 468
GLENWOOD MOBILE ESTATES CA1400030 California Community 468
EDISON MUTUAL WATER COMPANY CA1500119 California Community 466
MCUSD - WOODLAND ELEMENTARY SCHOOL CA2210910 California Non-Transient Non-Community 466
CANYON MEADOWS MUTUAL WATER CA1500443 California Community 465
K KASAI CA1000311 California Community 465
WEST PATTON VILLAGE CSD CA1805009 California Community 465
NEWBERRY MINI MART AND TRUCK STOP CA3601100 California Transient Non-Community 465
IDLEWHEEL MOBILE HOME PARK CA5700631 California Community 465
RIPON USD-COLONY OAK SCHOOL CA3901331 California Non-Transient Non-Community 465
WEST PATTON VILLAGE WATER CA1800527 California Community 465
ARCOHE ELEM SCHOOL - MAIN CAMPUS CA3400271 California Non-Transient Non-Community 465
Alturas Desert Rose Casino 090600601 California Non-Transient Non-Community 464
DUNLAP K-8 SCHOOL CA1000184 California Non-Transient Non-Community 463
SUTTER HOME WINERY INC. CA3902180 California Non-Transient Non-Community 463
FCSA 32 - CANTUA CREEK CA1000359 California Community 462
BROCK MUTUAL WATER COMPANY CA1500409 California Community 462
SAN SIMEON CSD CA4000568 California Community 462
RIVERVIEW SCHOOL CA1000196 California Non-Transient Non-Community 461
FALLEN LEAF MUTUAL WATER CO CA0900641 California Transient Non-Community 461
CLARKSBURG MIDDLE SCHOOL CA5700509 California Non-Transient Non-Community 460
RINCON VALLEY MOBILE ESTATES CA4900600 California Community 460
DIAMOND JIM S CASINO CA1503360 California Non-Transient Non-Community 460
GRIDLEY FARM LABOR HOUSING CA0400012 California Community 460
WILLOWSIDE SCHOOL CA4901156 California Non-Transient Non-Community 460
PENCE VINEYARDS CA4200978 California Transient Non-Community 460
SJS U DEPT PHYSICAL PLANT SUP CA4300710 California Community 460
PALM SCHOOL CA5400673 California Transient Non-Community 459
OROVILLE-WYANDOTTE I. D. CA0410010 California Community 459
TRAILER HAVEN MOBILE HOME PARK CA0103041 California Community 459
POINT ARENA WATER WORKS CA2310013 California Community 459
KENNEDY GROCERY CA3301359 California Transient Non-Community 458
CENTERVILLE SCHOOL CA1000104 California Non-Transient Non-Community 456
CLOVERDALE MUTUAL WATER CO. CA5610068 California Community 455
BUENA VISTA MIGRANT CENTER CA4400763 California Community 455
PLACER CSA 6 CA3100009 California Community 455
SIERRA CEDARS COMMUNITY CA1000073 California Community 455
PRIMEX FARMS WATER SYSTEM CA1503521 California Non-Transient Non-Community 454
WIND WOLVES PRESERVE CA1503378 California Transient Non-Community 452
DELHI KINGDOM HALL CA2400245 California Transient Non-Community 452
BUTTONWILLOW RACEWAY PARK CLASSIC CA1503249 California Transient Non-Community 451
HOUSTON SCHOOL CA5400841 California Transient Non-Community 451
CALIFORNIA CITIES WATER CO - INACTIVE CA4000601 California Community 450
PRATT MUTUAL WATER CO CA5400683 California Community 450