Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Denton County Fresh Water Supply District 8-c

NOTE: Denton County Fresh Water Supply District 8-c purchases water from Town of Little Elm which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Town of Little Elm.

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

 

0

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
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

NOTE: Denton County Fresh Water Supply District 8-c purchases water from Town of Little Elm which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Town of Little Elm.

Date Lab ID Result