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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Mt Pleasant Water Works

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017ND40ND
2018ND20ND
2019ND10ND

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
2014-05-27AD40426ND
2014-05-27AD40433ND
2014-05-27AD40440ND
2014-05-27AD40444ND
2014-05-27AD40459ND
2017-07-13AD97320ND
2017-07-13AD97314ND
2017-07-13AD97318ND
2017-07-13AD97316ND
2018-07-31AE15927ND
2018-12-13AE22962ND
2019-03-18AE27327ND