Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Loyal Waterworks

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
2019ND10ND
2020ND40ND
2021N/A00N/A
2022N/A00N/A
2023ND50ND

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
2018-08-0918H0421-01ND
2019-07-3019G1067-01ND
2020-04-2320D0780-02ND
2020-04-2320D0780-03ND
2020-04-2320D0780-01ND
2020-04-2320D0780-04ND
2023-05-0823E0244-05ND
2023-05-0823E0244-01ND
2023-05-0823E0244-04ND
2023-05-0823E0244-02ND
2023-11-0623K0168-01ND