Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Kingston Water System

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND40ND
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 Result
2018-02-05ND
2018-02-05ND
2019-02-04ND
2019-02-04ND
2020-02-10ND
2020-02-10ND
2021-02-08ND
2021-02-08ND
2022-02-15ND
2022-02-15ND
2022-02-15ND
2022-02-15ND
2023-12-11ND
2023-12-11ND