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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Western Greene

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.

 

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
2016ND20ND
2017ND40ND
2018ND30ND
2019ND10ND

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
2014-08-0614219000501ND
2015-01-1415015009201ND
2015-09-0815252004101ND
2016-07-2716210000801ND
2016-11-2116328000704ND
2017-01-1117012006809ND
2017-05-0917130006308ND
2017-07-1817200000808ND
2017-07-1817200000701ND
2018-01-0918012000701ND
2018-04-1018101010101ND
2018-08-2818242002701ND
2019-08-0719220013501ND