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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WEST VALLEY COUNTY WATER DISTRICT
CA1909006 · 798 served
WEST VALLEY HIGH SCHOOL
CA4500214 · 850 served
WEST VALLEY MUTUAL WATER COMPANY
CA1500550 · 70 served
WEST VALLEY WATER DISTRICT
CA3610004 · 104,498 served
WEST WALKER MOTEL
CA2600638 · 30 served
WEST WATER COMPANY
CA4901893 · 45 served
WEST WATER COMPANY
CA4900606 · 75 served
WEST WATER COMPANY (PUC)
CA4900893 · 40 served
WEST WIND WINERY
CA4800812 · 103 served
WESTBOROUGH WATER DISTRICT
CA4110027 · 13,486 served
WESTBRANCH WORK CENTER
CA4700609 · 25 served
WESTEND WATER ASSOCIATION
CA3200173 · 24 served
WESTERBEKE RANCH
CA4901096 · 25 served
WESTERN ACRES MUTUAL WATER COMPANY
CA1503475 · 380 served
WESTERN DIGITAL TECHNOLOGIES, INC.
CA4300791 · 2,439 served
WESTERN FARM SERVICE INC
CA1009070 · 0 served
WESTERN GOLF CART MFRS. INC
CA3302061 · 40 served
WESTERN HEIGHTS WATER COMPANY
CA3610053 · 7,705 served
WESTERN HILLS WATER
CA1700684 · 0 served
WESTERN HILLS WATER DISTRICT/DIABLO GRAN
CA5010039 · 2,000 served
WESTERN HOLIDAY LODGE
CA5400623 · 25 served
WESTERN MILLING WATER SYSTEM
CA1503585 · 45 served
WESTERN MOBILE HOME PARK
CA4900791 · 178 served
WESTERN MWC
CA1700520 · 0 served
WESTERN MWD
CA3310049 · 86,062 served
WESTERN MWD
CA1310049 · 41,549 served
WESTERN MWD - MURRIETA DIVISION
CA3310036 · 17,453 served
WESTERN MWD (ARLINGTON)
CA3310075 · 0 served
WESTERN MWD (ID A - RAINBOW)
CA3310076 · 192 served
WESTERN NOMADS
CA5100171 · 150 served
WESTERN PACIFIC L-C CORP
CA5305001 · 25 served
WESTERN PALLET SUPPLY & LOGISTICS
CA3901336 · 60 served
WESTERN RAILWAY MUSEUM
CA4810017 · 50 served
Western Sands Motel
CA3301743 · 25 served
WESTERN SCHOOL
CA1000296 · 300 served
WESTERN SIERRA CHARTER SCHOOLS
CA2000957 · 113 served
WESTERN SKIES MOBILE HOME PARK
CA1900541 · 198 served
WESTERN SKY M.H.P.
CA5400554 · 108 served
WESTERN SPACEPORT MUSEUM
CA4200890 · 100 served
WESTERN VALLEY MEAT COMPANY
CA1000461 · 815 served
WESTERN WATERWAYS
CA4800754 · 150 served
WESTERNER MOBILE HOME PARK
CA3400331 · 65 served
WESTFALL CAMP
CA1009148 · 100 served
WESTFALL WORK CENTER
CA2000835 · 25 served
WESTFIELD SCHOOL
CA5400564 · 180 served
WESTGATE LANDING PARK WATER SYSTEM
CA3901485 · 25 served
WESTGATE PETROLEUM
CA1700734 · 210 served
WESTHAVEN C.S.D.
CA1210024 · 490 served
WESTHAVEN MWC
CA1200585 · 500 served
WESTINGHOUSE ELECTRIC CORP
CA4300788 · 3,000 served