Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Hopedale Water Department

NOTE: Hopedale Water Department purchases water from Milford Water Company which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Milford Water Company.

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

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020ND50ND
2021ND50ND
2022ND40ND
2023ND40ND

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: Hopedale Water Department purchases water from Milford Water Company which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Milford Water Company.

Date Result
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-06-06ND
2018-06-28ND
2019-05-14ND
2019-05-14ND
2019-07-25ND
2019-10-09ND
2020-04-27ND
2020-04-28ND
2020-04-28ND
2020-04-28ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2022-04-27ND
2022-04-27ND
2022-04-27ND
2022-06-16ND
2023-06-06ND
2023-06-06ND
2023-06-06ND
2023-06-06ND