Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Connecticut Correctional Institute

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND40ND
2020ND10ND
2021ND10ND
2022ND30ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-16308608GEND
2019-01-22CC32920ND
2019-01-29CC35679ND
2019-01-29CC35682ND
2019-12-10330471GEND
2020-02-25CF37530ND
2021-01-14CH46414ND
2022-02-08CK31864ND
2022-02-08CK31868ND
2022-09-13CM29463ND
2023-09-19CP02568ND