Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Pennsylvania American Water Company - Hershey

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
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
2018-01-0438148701ND
2019-01-1742486001ND
2019-07-2245996201ND
2020-02-1021794485.00ND
2020-03-0421973210.00ND
2021-01-0523840013.00ND
2021-01-0623840034.00ND
2022-01-2526070928.00ND
2022-02-1026241216.00ND
2023-01-1628300860.00ND
2023-01-1628300879.00ND