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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

University of Connecticut - Main Campus

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-04-24BG36616VOC1ND
2014-04-24BG36617VOC1ND
2014-06-27BG66061VOC1ND
2015-01-22BH66096VOC1ND
2015-01-22BH66098VOC1ND
2015-01-22BH66097VOC1ND
2016-06-14BN54228VOC1ND
2016-06-14BN54227VOC1ND
2017-12-11BZ54499VOC1ND
2017-12-11BZ54498VOC1ND
2018-12-12VOC1 200515892ND
2018-12-12VOC1 200515895ND
2019-11-21VOC1 200557816ND
2019-11-21VOC1 200557817ND