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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Dogwood Hills

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
2014N/A00N/A
2015ND30ND
2016ND40ND
2017ND30ND
2018ND30ND
2019ND30ND

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
2015-08-19AD04695ND
2015-09-28AD08768ND
2015-09-28AD08738ND
2016-03-30AD31166ND
2016-03-30AD31190ND
2016-03-30AD31164ND
2016-06-15AD40760ND
2017-09-08AD95455ND
2017-09-08AD95449ND
2017-09-08AD95445ND
2018-03-20AE19092ND
2018-03-20AE19094ND
2018-03-20AE19086ND
2019-11-07AE88911ND
2019-11-07AE88915ND
2019-11-07AE88909ND