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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Aquarion Water - NH

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND20ND
2016ND60ND
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

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
2014-07-15133675.02ND
2014-07-15133675.01ND
2014-07-17133762.01ND
2014-07-17133762.02ND
2014-07-17133762.03ND
2014-07-17133762.04ND
2014-07-17133762.05ND
2014-08-11134678.03ND
2014-08-11134678.02ND
2014-08-11134678.01ND
2015-07-21145972.01ND
2015-07-21145972.02ND
2016-04-05154457.02ND
2016-07-26158731.01ND
2016-07-26158731.02ND
2016-07-26158731.03ND
2016-07-26158731.04ND
2016-07-27158731.05ND