Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

City of Lancaster

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-04-231810508-01ND
2018-04-231810508-02ND
2019-01-313013972001ND
2019-01-313013972003ND
2020-04-3022169826.00ND
2020-04-3022169847.00ND
2021-05-1324591310.00ND
2021-05-1324591331.00ND
2022-05-1226798823.00ND
2022-05-1226798844.00ND
2023-05-0429057577.00ND
2023-05-0429057578.00ND