Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,2,2-Tetrachloroethane

Oneill, City of

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND20ND
2016ND10ND
2017ND30ND
2018ND20ND
2019ND10ND

ppb = parts per billion

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

All test results

Date Lab ID Result
2014-05-05294489ND
2014-06-02294490ND
2014-08-25311087ND
2015-03-16345963ND
2015-04-27353659ND
2016-05-09ND
2017-04-24ND
2017-06-05ND
2017-10-23ND
2018-05-07550381ND
2018-12-03577364ND
2019-04-15604165ND