Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Wright City Water Supply Corporation 1

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-10-18Q1841788003ND
2019-01-17Q1902561003ND
2020-01-30Q2003965001ND
2021-12-09Q2134774005ND
2022-03-10Q2208339002ND
2023-04-06Q2312897003ND
2023-07-20Q2328741003ND
2023-10-13Q2343885001ND