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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Aquarion Water Company of Connecticut - Mystic

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-05-05201406104-VOC1ND
2014-07-21201410322-VOC1ND
2015-05-04201505516-VOC1ND
2015-05-04201505525-VOC1ND
2016-05-02201605544-VOC1ND
2016-05-02201605551-VOC1ND
2017-05-02201706330-VOC1ND
2017-05-02201706339-VOC1ND
2018-05-07201806155-VOC1ND
2019-05-07201906220-VOC1ND
2019-10-28201917770-VOC1ND