Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Hemlock Mutual Water Company

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
2018-09-06CA1910053_002_002-201809060850ND
2018-09-06CA1910053_001_001-201809060910ND
2019-09-09CA1910053_001_001-201909091030ND
2019-09-09CA1910053_002_002-201909091025ND
2020-09-02CA1910053_002_002-202009020805ND
2020-09-02CA1910053_001_001-202009020820ND
2021-07-07CA1910053_002_002-202107071100ND
2021-07-07CA1910053_001_001-202107071110ND
2022-07-07CA1910053_002_002-202207071045ND
2022-07-07CA1910053_001_001-202207071105ND
2023-07-21CA1910053_001_001-202307211000ND
2023-07-21CA1910053_002_002-202307210945ND