Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Palmer Water District No.1

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

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND80ND
2021ND80ND
2022ND70ND
2023ND70ND

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 Result
2018-08-06ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2019-08-12ND
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-11-19ND
2020-01-15ND
2020-04-08ND
2020-09-09ND
2020-09-09ND
2020-09-09ND
2020-09-09ND
2020-09-09ND
2020-12-03ND
2021-01-07ND
2021-04-06ND
2021-07-27ND
2021-07-27ND
2021-07-27ND
2021-07-27ND
2021-07-27ND
2021-11-09ND
2022-01-05ND
2022-04-05ND
2022-07-12ND
2022-07-12ND
2022-07-12ND
2022-07-12ND
2022-07-12ND
2023-03-07ND
2023-07-18ND
2023-07-18ND
2023-07-18ND
2023-07-18ND
2023-07-18ND
2023-10-17ND