Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

San Bernard River Estates

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
2021ND30ND
2022ND20ND
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

Date Lab ID Result
2018-08-14AE36957ND
2018-08-14AE36961ND
2019-04-17AE62768ND
2019-08-26AE80689ND
2020-09-16AF27599ND
2020-12-10AF37309ND
2021-05-12AF53572ND
2021-05-12AF53578ND
2021-09-29AF71680ND
2022-09-20AG14196ND
2022-09-20AG14198ND
2023-06-14AG44507ND