Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Talley Water Supply Corporation

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

 

12

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

Date Lab ID Result
2018-07-25Q1829519008ND
2018-07-25Q1829519011ND
2019-05-06Q1920205001ND
2019-05-06Q1920205003ND
2020-03-16Q2010542001ND
2020-03-16Q2010542003ND
2021-12-07Q2134174008ND
2021-12-07Q2134174010ND
2022-10-31Q2232959007ND
2022-10-31Q2232959009ND
2023-09-21Q2340992001ND
2023-09-21Q2340992003ND