Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Walnut Springs

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND20ND
2023ND30ND

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
2018-04-02AE20869ND
2018-04-02AE20875ND
2019-11-07AE88913ND
2019-11-07AE88919ND
2021-08-05AF65081ND
2021-08-05AF65093ND
2022-04-07AF92453ND
2022-10-17AG17266ND
2023-02-07AG27731ND
2023-02-07AG27737ND
2023-05-01AG38650ND