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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Town of Iota Water System

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013N/A00N/A
2014N/A00N/A
2015ND60ND
2016N/A00N/A
2017ND40ND

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
2012-06-25AD66847ND
2012-06-25AD66847ND
2012-07-09AD67364ND
2012-07-09AD67365ND
2012-07-09AD67365ND
2012-07-09AD67364ND
2015-08-0335200643003ND
2015-08-0335200643002ND
2015-08-0335200643001ND
2015-08-0335200643002ND
2015-08-0335200643003ND
2015-08-0335200643001ND
2017-02-0335293758006ND
2017-02-0335293758006ND
2017-03-0935300470006ND
2017-03-0935300470006ND