Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

cis-1,2-Dichloroethylene

Haina

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
2014ND40ND
2015ND20ND
2016ND20ND
2017ND30ND
2018ND10ND
2019N/A00N/A

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
2014-01-22C14-01-0041AND
2014-01-22C14-01-0042AND
2014-09-29201409300469ND
2014-11-13201411140420ND
2015-07-20C15-07-0347AND
2015-07-20C15-07-0349AND
2016-03-09ND
2016-03-09ND
2017-03-29ND
2017-03-29ND
2017-09-11ND
2018-04-18C18-04-0177AND