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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Lake Mills Waterworks

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND30ND
2015ND10ND
2016ND10ND
2017ND20ND

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 Lab ID Result
2012-02-27652420ND
2012-08-22679848ND
2013-02-18706433ND
2013-02-19706435ND
2014-09-10818273ND
2014-09-10818275ND
2014-10-13825297ND
2015-04-15854564ND
2016-02-03903943ND
2017-03-08976729ND
2017-03-08976726ND