Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Glencoe Water Works Board

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND30ND
20210.500 ppb220.500 ppb
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
2018-02-051802-00039-3ND
2018-02-051802-00039-5ND
2019-03-121903-00245-002ND
2019-03-121903-00245-004ND
2020-02-172002-00306-002ND
2020-02-172002-00306-004ND
2020-02-172002-00306-006ND
2021-02-222102-00357-0030.500 ppb
2021-02-222102-00357-0080.500 ppb
2022-02-172202-00348-003ND
2022-02-172202-00348-005ND
2023-01-302301-00501-002ND
2023-01-302301-00501-004ND
2023-01-302301-00501-006ND