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EWG's Tap Water Database — 2021 UPDATE

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1,1,1,2-Tetrachloroethane

Ej Water Company

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND40ND
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
2014-04-10Q1411506005ND
2015-02-04Q1504508001ND
2015-04-14Q1513783010ND
2016-01-13Q1601375002ND
2016-01-13Q1601375004ND
2016-08-01Q1631453001ND
2016-10-06Q1642512004ND
2017-01-10Q1701122002ND
2017-01-10Q1701122010ND
2018-01-09Q1800845002ND
2018-04-05Q1814314006ND
2019-06-18Q1937612003ND
2019-06-24Q1939016001ND