Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Connecticut Water Company - Northern Reg-reservoir Heights

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

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0294 ppb171ND - 0.500 ppb
20190.0438 ppb161ND - 0.700 ppb
20200.156 ppb163ND - 1.06 ppb
20210.0763 ppb162ND - 0.720 ppb
20220.0313 ppb161ND - 0.500 ppb
2023ND170ND

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