Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

cis-1,2-Dichloroethylene

Faribault

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
20140.440 ppb220.250 ppb - 0.630 ppb
20150.660 ppb110.660 ppb
20161.20 ppb111.20 ppb
20170.987 ppb660.240 ppb - 2.20 ppb
20180.380 ppb110.380 ppb
20191.30 ppb111.30 ppb

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
2014-02-0414B0136-010.250 ppb
2014-04-2214D1306-010.630 ppb
2015-04-0615D0292-010.660 ppb
2016-03-1434141321.20 ppb
2017-02-2217B1185-010.240 ppb
2017-02-2217B1189-012.20 ppb
2017-02-2217B1189-020.430 ppb
2017-02-2217B1189-030.450 ppb
2017-02-2217B1191-011.10 ppb
2017-10-0517J0335-011.50 ppb
2018-04-0918D0324-010.380 ppb
2019-06-1119F0776-011.30 ppb