Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Battle Ground Water Department

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
2018ND20ND
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND40ND
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
2018-04-10ND
2018-07-18ND
2019-05-21ND
2019-11-07ND
2021-06-234188694ND
2021-10-194194906ND
2022-05-314292477ND
2022-05-314292478ND
2022-06-294303896ND
2022-10-274370656ND
2023-06-074473915ND
2023-07-184488413ND
2023-12-054570035ND