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EWG's Tap Water Database — 2019 UPDATE

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1,1,2,2-Tetrachloroethane

City of Hereford

1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND30ND
2015ND40ND
2016ND60ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2012-03-08AB83427ND
2012-03-08AB83425ND
2012-05-30AB91325ND
2013-05-28Q1301569015ND
2013-05-28Q1301569018ND
2013-05-28Q1301569019ND
2014-02-12Q1404321004ND
2014-02-12Q1404321014ND
2014-02-12Q1404321012ND
2015-01-29Q1503619008ND
2015-01-29Q1503619001ND
2015-01-29Q1503619003ND
2015-01-29Q1503619006ND
2016-02-10Q1605969003ND
2016-02-10Q1605969002ND
2016-03-17Q1611196004ND
2016-03-17Q1611196002ND
2016-09-15Q1637842006ND
2016-10-18Q1644175005ND
2017-01-17Q1702053006ND
2017-04-10Q1714723001ND
2017-05-09Q1718998002ND
2017-07-13Q1728901008ND