Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Connecticut Water Company - Amston Lake Division

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND30ND
2020ND10ND
2021ND10ND
2022ND20ND
2023ND10ND

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
2018-01-19BZ75818VOC1ND
2018-04-09CA16127VOC1ND
2018-07-23CA95518ND
2018-11-15VOC1 200512952ND
2019-02-19VOC1 200522111ND
2019-02-19VOC1 200522112ND
2019-04-08VOC1 200527488ND
2020-09-21VOC1 200590982ND
2021-01-06VOC1 200602955ND
2022-09-23CM40531ND
2022-09-23CM40528ND
2023-10-24CP33072ND