Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Pennsylvania American Water Company - Hershey

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

 

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): 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-0438148701ND
2019-01-1742486001ND
2019-07-2245996201ND
2020-02-1021794492.00ND
2020-03-0421973217.00ND
2021-01-0523840020.00ND
2021-01-0623840041.00ND
2022-01-2526070915.00ND
2022-02-1026241225.00ND
2023-01-1628300873.00ND
2023-01-1628300892.00ND