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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Orange County WCID 1

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.

 

16

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
2017ND50ND
2018ND30ND
2019ND30ND

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
2014-04-17AC51076ND
2015-02-26AC82115ND
2015-02-26AC82127ND
2016-02-23AD25080ND
2016-02-23AD25078ND
2017-02-21AD71272ND
2017-02-21AD71274ND
2017-05-23AD85279ND
2017-08-25AD94489ND
2017-11-07AE04095ND
2018-02-14AE13802ND
2018-02-14AE13788ND
2018-02-14AE13784ND
2019-04-08AE61410ND
2019-04-08AE61408ND
2019-04-08AE61406ND