Utilities in California
18,760 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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IOWA HILL SCHOOL
CA3100020 · 75 served
IOWA HILL WATER COOPERATIVE
CA3100013 · 60 served
IRELAN S
CA5403087 · 52 served
IRENE CUFFE
CA1400071 · 40 served
IRENE RODRIGUEZ CAMP
CA3303007 · 60 served
IRISH BEACH CALIF. WATER DIST.
CA2300603 · 180 served
IRISH BEACH WATER DISTRICT
CA2310012 · 254 served
IRISH HILLS MUTUAL WATER CO
CA4000203 · 135 served
IRON DOOR
CA3700033 · 50 served
IRON HOG RESTAURANT & SALOON
CA3600577 · 100 served
IRON HUB WINERY
CA0300110 · 26 served
IRON MOUNTAIN
CA0900545 · 200 served
IRON SPRINGS WATER GROUP
CA3700910 · 50 served
IRONWOOD CAMP
CA3601015 · 210 served
IRVINE FINCH RIVER ACCESS
CA1110300 · 25 served
IRVINE LODGE REST STOP (CALTRANS)
CA2300819 · 300 served
IRVINE RANCH HEADQUARTERS
CA3000771 · 60 served
IRVINE RANCH WATER DISTRICT
CA3010092 · 444,800 served
IRVINE RANCH WATER DISTRICT-LLC
CA3010039 · 0 served
IRVINE RANCH WATER DISTRICT-LOS ALISOS
CA3010091 · 0 served
IRVINE REGIONAL PARK
CA3000770 · 500 served
IRVINE VALENCIA GROWERS
CA3000772 · 0 served
IRWD - SANTIAGO SYSTEM
CA3010095 · 0 served
IRWINDALE BREWERY YARD (IBY)
CA1900035 · 300 served
ISABELLA MUTUAL WATER COMPANY
CA1500294 · 0 served
ISADORE COHEN
CA3400257 · 600 served
ISAMU KUWAHARA
CA4100528 · 7 served
ISHI CONSERVATION CAMP
CA0000127 · 100 served
ISHI CONSERVATION CAMP
CA7300127 · 100 served
ISHIMOTO BROTHERS
CA5700666 · 37 served
ISLAND ELEVATORS
CA4800724 · 60 served
ISLAND UNION SCHOOL
CA1600017 · 416 served
ISLANDER MARINA
CA3900653 · 150 served
ISOMATA - USC
CA3301336 · 25 served
ISOT COMMUNITY WATER SYSTEM
CA2500911 · 116 served
ISOT INC
CA2500913 · 50 served
ISOT INC WELL 16 ISOT SCHOOL
CA2500916 · 60 served
ITALIAN ATHLETIC CLUB
CA3901296 · 50 served
ITALIAN VILLAGE
CA1700532 · 50 served
ITALICS WINERY
CA2800052 · 25 served
ITCC KITCHEN
CA4700671 · 24 served
IV DESERT MUSEUM SOCIETY INC.
CA1300667 · 64 served
IVANHOE ELEMENTARY SCHOOL
CA5400845 · 387 served
IVANHOE PUBLIC UTILITY DIST
CA5410019 · 4,580 served
IVANPAH SOLAR THERMAL POWER PLANT
CA3601181 · 56 served
IVCSD CRESCENT MILLS
CA3200510 · 258 served
IVCSD-GREENVILLE
CA3210001 · 630 served
IVERSON & JACKS APTS WS
CA2701068 · 86 served
IVERSON RD WS #03
CA2702621 · 37 served
IVEX CORPORATION
CA5400965 · 50 served