Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Lynnfield Water District (MWRA)

NOTE: Lynnfield Water District (MWRA) purchases water from Massachusetts Water Resources Authority (MWRA) which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Massachusetts Water Resources Authority (MWRA).

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

 

12

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
2021ND20ND
2022ND30ND
2023ND50ND

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: Lynnfield Water District (MWRA) purchases water from Massachusetts Water Resources Authority (MWRA) which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Massachusetts Water Resources Authority (MWRA).

Date Result
2018-10-16ND
2018-10-16ND
2019-10-15ND
2019-10-15ND
2020-10-06ND
2020-10-06ND
2021-10-19ND
2021-10-19ND
2022-10-04ND
2022-10-04ND
2023-10-24ND
2023-10-24ND