Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Kent Water District 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
2019N/A00N/A
2020N/A00N/A
2021ND30ND
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
2018-03-27CA09393POCSND
2021-03-10CH76003POCSND
2021-03-10CH76004POCSND
2021-03-10CH76002POCSND
2022-03-16CK881330POCSND
2023-03-15CN60460POCSND
2023-03-15CN60461POCSND
2023-03-29CN70994POCSND