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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

Shrewsbury Water Department

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

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57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND110ND
2015ND100ND
2016ND110ND
2017ND20ND
2018ND110ND
2019ND120ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Result
2014-02-24ND
2014-05-06ND
2014-09-03ND
2014-09-03ND
2014-09-03ND
2014-09-03ND
2014-09-03ND
2014-09-03ND
2014-09-03ND
2014-09-03ND
2014-11-06ND
2015-02-11ND
2015-05-13ND
2015-09-02ND
2015-09-02ND
2015-09-02ND
2015-09-02ND
2015-09-02ND
2015-09-02ND
2015-09-02ND
2015-11-30ND
2016-02-19ND
2016-04-14ND
2016-07-13ND
2016-07-13ND
2016-07-13ND
2016-07-13ND
2016-07-13ND
2016-07-13ND
2016-07-13ND
2016-07-13ND
2016-10-25ND
2017-02-28ND
2017-12-15ND
2018-03-06ND
2018-07-26ND
2018-07-26ND
2018-07-26ND
2018-07-26ND
2018-07-26ND
2018-07-26ND
2018-07-26ND
2018-07-26ND
2018-08-21ND
2018-12-05ND
2019-03-25ND
2019-05-16ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-10-16ND