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EWG's Tap Water Database — 2019 UPDATE

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1,1,2,2-Tetrachloroethane

Status: No national drinking water standard exists

 

1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.

2015-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

3

states detected

4

utilities detected

45,403

people served

1

states over health guideline

2

utilities over health guideline

1,736

people served over health guideline

Health concerns for 1,1,2,2-tetrachloroethane

Cancer

Harm to the liver

Change to the central nervous system

Change to the stomach and intestines

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

States reporting 1,1,2,2-tetrachloroethane in drinking water

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served UtilitiesPeople Served
Connecticut00137,267
Ohio0016,400
New York21,73621,736
MORE
LESS

Filtering technologies that reduce 1,1,2,2-tetrachloroethane

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of 1,1,2,2-tetrachloroethane, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Pinewood Acres Water DistrictCorning, NY1 of 30.167 ppb168
South Corning Village*Corning, NY1 of 30.167 ppb1,568
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267
Milford City Public Water SystemMilford, OH1 of 190.0263 ppb6,400

* 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 1,1,2,2-Tetrachloroethane, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267