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EWG's Tap Water Database — 2019 UPDATE

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1,1-Dichloropropene

Status: No national drinking water standard exists

 

1,1-Dichloropropene is an industrial chemical.

2015-2017:

FOUND

3

states detected

7

utilities detected

109,000

people served

States reporting 1,1-dichloropropene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
New York248,040
Connecticut137,267
Ohio423,624
MORE
LESS

Filtering technologies that reduce 1,1-dichloropropene

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Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of 1,1-dichloropropene, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Franklin Public Water System*Franklin, OH1 of 51.52 ppb11,396
Carlisle City Public Water SystemCarlisle, OH1 of 51.52 ppb4,897
Woodcrest ApartmentsWallkill, NY1 of 140.0357 ppb40
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267
Milford City Public Water SystemMilford, OH1 of 190.0263 ppb6,400
Hicksville WDHicksville, NY1 of 6830.00226 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 51.52 ppb11,396
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267
Hicksville WDHicksville, NY1 of 6830.00226 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.