Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Dripping Springs Water Supply Corporation

NOTE: Dripping Springs Water Supply Corporation purchases water from West Travis County Regional WS which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by West Travis County Regional WS.

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
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

NOTE: Dripping Springs Water Supply Corporation purchases water from West Travis County Regional WS which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by West Travis County Regional WS.

Date Lab ID Result
2018-07-23AE34161ND
2019-08-21AE79918ND
2020-07-20AF19804ND
2021-08-11AF65765ND
2022-08-11AG08908ND
2023-12-12AG66339ND