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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Shrewsbury Water Department

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

MORE ABOUT THIS CONTAMINANT

 

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
20190.0458 ppb121ND - 0.550 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

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
2019-08-140.550 ppb
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-10-16ND