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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

Thomas Cove

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
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
2014-09-30L5153605-1 VOCND
2014-10-21L5242402-1 VOCND
2015-03-26L5486345-VOCND
2015-05-04L5530433-1-VOCND
2016-09-23L6372174-1 VOCND
2016-09-23L6372290-1 VOCND
2017-02-17L6568639-1 VOCND
2017-02-17L6635059-1 VOCND