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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Mansfield Water Division

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND50ND
2016ND40ND
2017ND10ND
2018ND50ND
2019ND50ND

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
2014-10-21ND
2014-10-21ND
2014-10-21ND
2014-10-21ND
2014-10-23ND
2015-10-27ND
2015-10-30ND
2015-10-30ND
2015-10-30ND
2015-10-30ND
2016-10-18ND
2016-10-18ND
2016-11-07ND
2016-11-07ND
2017-11-07ND
2018-10-22ND
2018-10-22ND
2018-10-22ND
2018-10-22ND
2018-10-22ND
2019-11-19ND
2019-11-19ND
2019-11-19ND
2019-11-19ND
2019-11-20ND