Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Horseshoe Bend Water System

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

 

15

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
2021ND40ND
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
2018-09-24Q1838017002ND
2018-09-24Q1838017011ND
2019-09-17Q1965845001ND
2019-09-17Q1965845003ND
2020-06-22Q2024986001ND
2020-06-22Q2024986003ND
2021-03-31Q2108169005ND
2021-03-31Q2108169007ND
2021-08-11Q2121433003ND
2021-12-27Q2136238001ND
2022-11-30Q2235894004ND
2022-11-30Q2235894006ND
2023-06-08Q2321714001ND
2023-06-08Q2321714009ND
2023-07-31Q2330829001ND