Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Shorewood Hills Waterworks

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
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
2018-11-19420369001ND
2018-11-19420372001ND
2019-11-18481795001ND
2019-11-18481819001ND
2019-12-09484892001ND
2019-12-09484891001ND
2020-11-16536139001ND
2020-11-16536137001ND
2021-11-16594760001ND
2021-11-16594754001ND
2022-11-21654126001ND
2022-11-21654127001ND
2023-12-08713883001ND
2023-12-08713887001ND