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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

Hope Water Light Comm.

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND30ND
2016ND70ND
2017ND20ND
2018ND30ND
2019ND70ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-08-1914233009001ND
2014-10-2914303002701ND
2015-07-0815190002101ND
2015-10-0815282005601ND
2015-10-2015296000401ND
2016-07-0516189010801ND
2016-07-0516189010901ND
2016-07-0516189011001ND
2016-07-0516189011101ND
2016-07-0516189011201ND
2016-07-0516189011301ND
2016-10-0516280008901ND
2017-07-1817200003901ND
2017-10-0317278002101ND
2018-07-2418207000701ND
2018-10-0318277006201ND
2018-12-0418340005501ND
2019-08-0519220002601ND
2019-08-0519220002501ND
2019-08-0519220002701ND
2019-08-0519220002901ND
2019-08-0519220002801ND
2019-08-0519220002301ND
2019-10-2919304000701ND