Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Hemlock Mutual Water Company

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
2018-09-06CA1910053_001_001-201809060910ND
2018-09-06CA1910053_002_002-201809060850ND
2019-09-09CA1910053_001_001-201909091030ND
2019-09-09CA1910053_002_002-201909091025ND
2020-09-02CA1910053_002_002-202009020805ND
2020-09-02CA1910053_001_001-202009020820ND
2021-07-07CA1910053_002_002-202107071100ND
2021-07-07CA1910053_001_001-202107071110ND
2022-07-07CA1910053_001_001-202207071105ND
2022-07-07CA1910053_002_002-202207071045ND
2023-07-21CA1910053_001_001-202307211000ND
2023-07-21CA1910053_002_002-202307210945ND