Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

West View Water Authority

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND50ND
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
2018-01-0201180119ND
2019-01-149011049-01ND
2020-01-0621585864.00ND
2020-02-1821755481.00ND
2020-05-1222313362.00ND
2020-08-0422898208.00ND
2020-11-1623448550.00ND
2021-02-0223973080.00ND
2021-02-0223973101.00ND
2022-01-2526032252.00ND
2022-01-2626032231.00ND
2023-01-2428261360.00ND
2023-01-2428261361.00ND