Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Salem Public Works

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

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
2018-01-24201801250239-VND
2019-02-07201902080338-VND
2020-02-03202002040118-VND
2020-05-18202005190119-VND
2021-02-16202102170345-VND
2021-05-10202105110678-VND
2022-02-16202202180003-VND
2022-06-23380-6930-1-VND
2023-01-04380-33407-1-VND
2023-04-27380-45315-1-VND
2023-10-31380-69235-1-VND
2023-10-31380-69271-1-VND