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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Columbus

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND10ND
2019ND20ND

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
2014-01-20AI26898ND
2014-01-20AI26899ND
2014-05-05AI39470ND
2014-07-30AI47500ND
2014-11-03AI58784ND
2015-03-24AI69581ND
2015-03-24AI69582ND
2016-04-25AJ10826ND
2016-04-25AJ10827ND
2017-06-13AJ57616ND
2017-08-07AJ63013ND
2018-05-14AJ89400ND
2019-03-11AK13001ND
2019-03-11AK13002ND