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EWG's Tap Water Database — 2021 UPDATE

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Hexachlorobutadiene

Status: No national drinking water standard exists

 

Hexachlorobutadiene is an industrial chemical and possible human carcinogen.

2017-2019:

FOUND

2

states detected

12

utilities detected

15,872

people served

Health concerns for hexachlorobutadiene

Cancer

States reporting hexachlorobutadiene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
New York119,472
Ohio16,400
MORE
LESS

Filtering technologies that reduce hexachlorobutadiene

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Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of hexachlorobutadiene, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Caspar South Service CompanySanta Rosa, CA1 of 20.550 ppb188
Ausable Heights Water SystemKeeseville, NY1 of 10.500 ppb46
Town of SharpsburgWilliamsport, MD1 of 20.280 ppb1,360
Silver Lake Institute - Castile Water District #1, NY1 of 40.125 ppb440
Perry Center Water DistrictPerry, NY1 of 40.125 ppb150
Perry Village*, NY1 of 40.125 ppb4,348
Gardeau Water DistrictCastile, NY1 of 40.125 ppb60
City of RiponRipon, CA1 of 130.108 ppb14,915
Central City, City ofCentral City, NE1 of 250.1000 ppb2,975
Springhill Mobile Home ParkWappingers Falls, NY1 of 90.0556 ppb150
Farm-to-market AssociatesBrewster, NY1 of 90.0556 ppb48
Bridleside ApartmentsChappaqua, NY1 of 730.0219 ppb230
Springport Water District #1 - NorthCayuga, NY1 of 240.0208 ppb500
Springport Water District #1 - SouthCayuga, NY1 of 240.0208 ppb500
Union Springs Village*Union Springs, NY1 of 240.0208 ppb3,000
City of ColumbusColumbus, NE1 of 980.0133 ppb22,797
Milford City Public Water SystemMilford, OH1 of 570.00877 ppb6,400
Millville Water DepartmentMillville, NJ1 of 670.000746 ppb27,500

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Hexachlorobutadiene, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
City of RiponRipon, CA1 of 130.108 ppb14,915
City of ColumbusColumbus, NE1 of 980.0133 ppb22,797
Millville Water DepartmentMillville, NJ1 of 670.000746 ppb27,500