Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Frognot Water Supply 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
2018ND20ND
2019ND20ND
2020ND40ND
2021ND20ND
2022ND20ND
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
2018-04-19Q1816227008ND
2018-06-20Q1824690001ND
2019-03-18Q1911123002ND
2019-08-12Q1954104001ND
2020-03-10Q2009278009ND
2020-03-10Q2009278011ND
2020-03-10Q2009278013ND
2020-05-12Q2018415002ND
2021-07-13Q2118248008ND
2021-07-13Q2118248010ND
2022-05-11Q2214187002ND
2022-05-11Q2214187005ND
2023-03-14Q2310003002ND
2023-03-14Q2310003004ND
2023-03-14Q2310003006ND