Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Aquarion Water Company of Connecticut - Stamford

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-02201800021-VOC1ND
2019-01-07201900234-VOC1ND
2020-01-06202000154-VOC1ND
2021-01-04202100057-VOC1ND
2022-01-03202200073-VOC1ND
2022-07-18202212142-VOC1ND
2023-01-03202300189-VOC1ND
2023-08-07202313851-VOC1ND