Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Settlers Crossing Water System 2

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
2018ND30ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND30ND

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
2018-06-05AE28695ND
2018-08-21AE37879ND
2018-11-06AE45427ND
2019-02-28AE56604ND
2020-06-19AF16354ND
2021-06-22AF59079ND
2022-08-17AG09698ND
2023-02-21AG29721ND
2023-06-13AG44264ND
2023-08-02AG51100ND