Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

City of Corvallis

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
2018-09-05809061301-VND
2018-09-05809061302-VND
2019-08-22908230101-VND
2019-08-22908230102-VND
2020-08-26008270202-VND
2020-08-26008270201-VND
2021-08-18108190801-VND
2021-08-18108190802-VND
2022-08-172081811-01-VND
2022-08-172081811-02-VND
2023-08-163081712-01-VND
2023-08-163081714-01-VND