Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Cecilia Water Corporation

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND50ND
2021ND40ND
2022ND30ND
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
2020-05-0635548260001ND
2020-09-2835581253002ND
2020-09-2835581253003ND
2020-12-0735597474003ND
2020-12-0735597474004ND
2021-02-0135608904003ND
2021-02-0135608904004ND
2021-05-0335630992003ND
2021-05-0335630992004ND
2022-01-3135694190001ND
2022-01-3135694190003ND
2022-04-0635708799002ND
2023-02-1335779756009ND
2023-11-0635840310001ND
2023-11-0635840310002ND