Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,2,2-Tetrachloroethane

Blair, City of

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.

MORE ABOUT THIS CONTAMINANT

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND90ND
2016ND90ND
2017ND90ND
2018ND90ND
2019ND90ND

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
2014-01-13283279ND
2014-04-14294819ND
2014-07-08309740ND
2014-07-14311937ND
2014-10-14330679ND
2015-02-09346533ND
2015-02-09346532ND
2015-05-11361715ND
2015-05-11361714ND
2015-07-13371074ND
2015-08-10378747ND
2015-08-10378746ND
2015-11-09393694ND
2015-11-09393693ND
2016-02-08ND
2016-02-08ND
2016-05-09ND
2016-05-09ND
2016-07-26ND
2016-08-08ND
2016-08-08ND
2016-11-15ND
2016-11-15ND
2017-02-16ND
2017-02-16ND
2017-05-09ND
2017-05-09ND
2017-07-24ND
2017-08-14ND
2017-08-14ND
2017-11-13ND
2017-11-13ND
2018-02-13534072ND
2018-02-13534071ND
2018-05-14549792ND
2018-05-14549793ND
2018-07-16560152ND
2018-08-16567001ND
2018-08-16567002ND
2018-11-13583356ND
2018-11-13583357ND
2019-02-11595214ND
2019-02-11595215ND
2019-05-13605810ND
2019-05-13605811ND
2019-07-08621235ND
2019-08-13628226ND
2019-08-13628227ND
2019-11-12644361ND
2019-11-12644360ND