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
ELKS - TRACY LODGE #2031 BPOE CA3900782 California Transient Non-Community 600
PRESTON SCHOOL OF INDUSTRY CA0000315 California Community 600
ST MARIA GORETTI PARISH (SWS) CA3400467 California Transient Non-Community 600
TURTLE LAKE MI1320321 California Transient Non-Community 600
CALTRANS-GRASS LAKE REST STOP CA4700558 California Transient Non-Community 600
GLASS HOUSE CAMARILLO CULTIVATION, LLC CA5602656 California Non-Transient Non-Community 600
SAN JOAQUIN RIVER CLUB INC CA3910018 California Community 600
FORT FREMONT MUTUAL WATER COMP CA3301271 California Community 600
Big Pine Paiute Band 090600120 California Community 600
FEATHER RIVER COMMUNITY COLLEGE CA3200111 California Non-Transient Non-Community 600
RANCHO SESPE WORKERS IMP ASSOC CA5601144 California Community 600
PLEASANT VALLEY BAPTIST CHURCH CA0400162 California Non-Transient Non-Community 600
MIDWAY COMMUNITY SERVICES DIST CA2410015 California Community 600
LARRY G PRESTON MGR CA4500207 California Community 600
MONTEREY ACRES MUTUAL W/C CA1900535 California Transient Non-Community 600
SYLVAN SCHOOL CA5000181 California Transient Non-Community 600
MECKS WHISPERING PINES II LLC IN5243033 California Community 598
MADISON ELEMENTARY SCHOOL CA1000105 California Non-Transient Non-Community 597
LIME SADDLE COMMUNITY CA0400075 California Community 597
WATERFORD - HICKMAN CA5010026 California Community 597
COROMAR MUTUAL WATER CO CA4200670 California Transient Non-Community 597
CEDAR GROVE MOBILE HOME PARK TX0500043 California Community 595
COBB AREA CWD - BONANZA SPRINGS CA1700544 California Community 594
WHISKEYTOWN NRA-HEADQUARTERS CA4510506 California Non-Transient Non-Community 594
EBRPD - SHADOW CLIFFS REGIONAL PARK CA0105011 California Transient Non-Community 593
DWR-MONUMENT HILL RESTROOMS CA0405002 California Transient Non-Community 593
S & T MUTUAL WATER COMPANY CA4000523 California Community 591
LAKE COUNTY CSA 6 - FINLEY CA1710019 California Community 590
LOST HILLS WATER COMPANY CA1500167 California Community 590
BONITA SCHOOL CA4200833 California Non-Transient Non-Community 589
HAEHL STREET WATER SYSTEM CA2300733 California Community 587
ROYAL OAKS SCHOOL CA5400854 California Non-Transient Non-Community 587
GOLDEN STATE WATER CO - LUCERNE CA3610108 California Community 586
CSP-PFEIFFER BIG SUR CA2710300 California Community 585
CARMEL RIVIERA MWC CA2701254 California Community 584
COSTANOA CAMPGROUND CA4100603 California Non-Transient Non-Community 583
STINSON BEACH COUNTY WTR DIST CA2110004 California Community 583
SNP-CRESCENT MEADOW CA5410505 California Transient Non-Community 580
ROOSEVELT ELEMENTARY SCHOOL CA1000208 California Non-Transient Non-Community 580
HMC GROUP COLD STORAGE CA1000440 California Non-Transient Non-Community 580
ECHO VALLEY SCHOOL WS CA2700552 California Non-Transient Non-Community 579
MENDOCINO SCHOOL DISTRICT- MENDOCINO CA2300584 California Non-Transient Non-Community 579
SHERWOOD FOREST MHP PWS OH1901112 California Community 578
MOUNT LAGUNA IMPROVEMENT ASSN. CA3702283 California Non-Transient Non-Community 578
SEVENTH DAY ADVENTIST CAMP CA4400726 California Transient Non-Community 578
OAK GLEN RETREAT CA3600133 California Community 576
USFS/VERMILLION CAMPGROUND CA1000145 California Transient Non-Community 575
SAN ARDO WD CA2700728 California Community 575
MOSS LANDING SCHOOL WS **CLOSED** CA2700598 California Non-Transient Non-Community 575
RIVER PINES PUD CA0310006 California Community 574