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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Waunakee Waterworks

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
2014ND60ND
2015ND40ND
2016ND10ND
2017ND60ND
2018ND40ND
2019ND20ND

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
2014-02-10769678ND
2014-02-10769683ND
2014-02-10769686ND
2014-02-10769680ND
2014-04-16780796ND
2014-04-16780797ND
2015-03-10847412ND
2015-05-04858130ND
2015-07-27873353ND
2015-10-05887254ND
2016-08-16940120ND
2017-01-31971660ND
2017-01-31971656ND
2017-02-06972337ND
2017-04-11982557ND
2017-07-111003165ND
2017-10-031022337ND
2018-01-311039288ND
2018-04-031048174ND
2018-07-111066417ND
2018-10-081085741ND
2019-07-011131600ND
2019-12-021162821ND