Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Silverton, City of

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.

 

10

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
2022ND10ND
2023ND10ND

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
2018-11-2620181126046-VND
2018-12-0320181203030-VND
2019-09-2420190924031-VND
2019-12-1620191216023-VND
2020-03-0420200304034-VND
2020-11-1720201117054-VND
2021-03-2620210316036-VND
2021-09-2120210921050-VND
2022-04-2020220420036-VND
2023-02-2120230221-020-VND