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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

Allendale Water Department

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND60ND
2016ND50ND
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

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
2014-01-214010523-01ND
2014-04-234040797-01ND
2014-07-144070507-01ND
2014-10-024100134-01ND
2014-10-024100134-02ND
2015-01-222051451001ND
2015-04-062063967001ND
2015-07-072081643001ND
2015-10-202103273001ND
2015-10-202103273002ND
2015-10-202103273003ND
2016-01-052116959001ND
2016-04-042134713001ND
2016-07-182159873001ND
2016-10-062180788001ND
2016-10-062180788002ND