Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

City of Coeur D Alene

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND30ND
2020ND10ND
2021ND10ND
2022ND90ND
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
2018-07-16V195339ND
2019-05-29V204289ND
2019-05-29V204292ND
2019-06-03V204364ND
2020-07-20V218126ND
2021-07-20V2021070360ND
2022-03-22V202203039802ND
2022-04-26V202204048802ND
2022-04-27V2022040546ND
2022-04-27V2022040529ND
2022-05-02V202205003001ND
2022-05-02V2022050013ND
2022-05-02V2022050007ND
2022-07-12V202207029502ND
2022-10-31V202210064202ND
2023-02-13V202302018702ND
2023-05-16V202305031902ND