Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Charlie Water Supply Corporation

NOTE: Charlie Water Supply Corporation purchases water from City of Byers which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Byers.

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: Charlie Water Supply Corporation purchases water from City of Byers which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Byers.

Date Lab ID Result
2018-02-28Q1808442001ND
2019-01-29Q1904438006ND
2020-03-03Q2007975005ND
2021-05-03Q2111518007ND
2022-01-20Q2202091003ND
2023-03-06Q2308688002ND