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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ARTHUR W BODLEY
CA5400883 · 40 served
ARTISAN COFFEE
CA1800013 · 25 served
ARTOIS COMMUNITY S.D.
CA1100203 · 254 served
ARTOIS CSD
CA1100538 · 150 served
ARTOIS SCHOOL
CA1100521 · 54 served
ARVIN COMMUNITY SERVICES DIST
CA1510001 · 19,669 served
ARVIN HIGH SCHOOL
CA1502304 · 1,495 served
ARVIN LABOR CENTER WATER SYSTEM
CA1500520 · 0 served
ARVIN WATER COMPANY
CA3410038 · 14,200 served
Arviso - Mobile Home Park
090605121 · 70 served
ARYA BONSALL
CA3705050 · 15 served
ASH CREEK CAMPGROUND
CA1801004 · 30 served
ASH CREEK FIRE STATION-STNF
CA4700722 · 240 served
ASHES & DIAMONDS WINERY
CA2800047 · 25 served
ASHFORD HIGHLANDS MWC
CA3500900 · 132 served
ASHTOWN MUTUAL WATER SYSTEM
CA1500293 · 0 served
ASHWORTH PRODUCTS
CA2701107 · 30 served
ASOLEADO MWC
CA2702148 · 101 served
ASPEN GROVE MH & RV PARK (SWS)
CA3400140 · 55 served
ASPEN HOUSE
CA0900613 · 25 served
ASPENDELL MUTUAL WATER COMPANY
CA1400066 · 60 served
ASSISI MWC
CA2700503 · 126 served
ASSN OF WELL OWNERS
CA3600541 · 14 served
ASSOC. VINTAGE GROUP-MARK WEST WINERY
CA4900993 · 30 served
ASSOCIATE MUTUAL WATER COMPANY
CA1500572 · 11,282 served
ASSOCIATED TAGLINE WS
CA2701109 · 70 served
ASSOCIATIONS OF THOMPSON LAKE
CA3200172 · 182 served
ASTI WINERY
CA4901203 · 67 served
ASTON AVENUE APARTMENTS
CA4900926 · 0 served
ASTORGAS WATER SYSTEM
CA1400131 · 250 served
AT&T - CLEARLAKE
CA1700740 · 30 served
AT&T CALIFORNIA - UER47
CA3901258 · 30 served
AT&T CORP - CA1059
CA4000220 · 25 served
AT&T WATER SYSTEM
CA5000588 · 80 served
ATAD, MARTIN LABOR CAMP #65-40
CA3900745 · 85 served
ATASCADERO LAKE - INACTIVE
CA4000311 · 25 served
ATASCADERO MUTUAL WATER CO
CA4010002 · 30,618 served
ATASCADERO STATE HOPSITAL
CA0000209 · 1,900 served
ATASCADERO STATE HOSPITAL
CA4010832 · 4,100 served
ATASCADERO STATE HOSPITAL
CA7300209 · 1,900 served
ATELIER ONE
CA4901039 · 25 served
ATHAL MUTUAL WATER SYSTEM
CA1500289 · 150 served
ATHENA TERRACE MUTUAL WATER COMPANY
CA4900673 · 50 served
ATL TRUCKING
CA5110009 · 44 served
ATLAS BUSINESS PARK
CA5500259 · 206 served
ATLAS PEAK GRILL
CA2800730 · 75 served
ATLAS PEAK VINEYARDS
CA2801001 · 100 served
ATWATER CHRISTIAN SCHOOL
CA2400159 · 25 served
Atwater High School, MUHSD
CA2400061 · 2,550 served
Atwater Livestock Auction Co.
CA2400156 · 100 served