Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

cis-1,2-Dichloroethylene

Lauradale S/d

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND30ND
2016ND30ND
2017ND10ND
2018ND10ND
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
2014-09-3037729_14-29715ND
2014-12-2937729_14-38988ND
2015-03-29ND
2015-06-29ND
2015-09-30ND
2016-12-2737729_16-44918ND
2016-12-2737729_16-44920ND
2016-12-2737729_16-44921ND
2017-12-2137729_17-48592ND
2018-12-3037729_18-54333 ND
2019-12-3037729_19-55334 ND
2019-12-3037729_19-55338 ND
2019-12-3137729_19-55412 ND