Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Sneedville Utility District

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-01-02ND
2018-04-03ND
2018-07-02ND
2018-10-10ND
2019-03-19ND
2019-04-01ND
2019-07-01ND
2019-10-01ND
2020-01-07ND
2021-01-04ND
2021-07-12ND
2022-07-13ND
2023-07-10ND