Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Mystic Harbour

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
2018ND20ND
2019ND20ND
2020ND10ND
2021ND30ND
2022N/A00N/A
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
2018-10-23E19001359008ND
2018-12-034149226ND
2019-06-05E19004188006ND
2019-12-10LD121019ND
2020-07-21E21000206006ND
2021-08-25E22000687001ND
2021-08-25E22000687004ND
2021-08-25E22000687006ND
2023-06-27E2300318201ND
2023-06-27E2300318204ND
2023-11-080009SBTP05ND