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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloropropene

Status: No national drinking water standard exists

 

1,1-Dichloropropene is an industrial chemical.

2017-2019:

FOUND

3

states detected

17

utilities detected

85,486

people served

States reporting 1,1-dichloropropene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Alabama252,580
Ohio423,624
New York119,282
MORE
LESS

Filtering technologies that reduce 1,1-dichloropropene

Activated Carbon

Reverse Osmosis

Utilities with the highest amounts of 1,1-dichloropropene, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Carlisle City Public Water SystemCarlisle, OH1 of 71.09 ppb4,897
Franklin Public Water System*Franklin, OH1 of 71.09 ppb11,396
Ausable Heights Water SystemKeeseville, NY1 of 10.500 ppb46
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
US Army Aviation and Missile CommandRedstone Arsenal, AL2 of 130.0747 ppb38,700
Farm-to-market AssociatesBrewster, NY1 of 90.0556 ppb48
Springhill Mobile Home ParkWappingers Falls, NY1 of 90.0556 ppb150
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
Woodcrest ApartmentsWallkill, NY1 of 260.0192 ppb40
Wallingford Water DepartmentWallingford, CT1 of 350.0143 ppb37,267
Milford City Public Water SystemMilford, OH1 of 570.00877 ppb6,400
Fort Rucker - American WaterFort Rucker, AL1 of 620.00807 ppb13,880
Hicksville WDHicksville, NY1 of 1,3920.00111 ppb48,000

* 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 1,1-Dichloropropene, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Franklin Public Water System*Franklin, OH1 of 71.09 ppb11,396
US Army Aviation and Missile CommandRedstone Arsenal, AL2 of 130.0747 ppb38,700
Wallingford Water DepartmentWallingford, CT1 of 350.0143 ppb37,267
Fort Rucker - American WaterFort Rucker, AL1 of 620.00807 ppb13,880
Hicksville WDHicksville, NY1 of 1,3920.00111 ppb48,000

* 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 1,1-Dichloropropene, but it likely has the contaminant in its water supply.