Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Parkville Water District

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
2018ND20ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND40ND
2023ND60ND

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 Result
2018-12-05ND
2018-12-05ND
2019-12-17ND
2020-12-08ND
2021-12-14ND
2022-09-22ND
2022-09-22ND
2022-12-21ND
2022-12-21ND
2023-03-30ND
2023-06-21ND
2023-09-20ND
2023-09-20ND
2023-12-18ND
2023-12-18ND