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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

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1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

MORE ABOUT THIS CONTAMINANT

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-0824405801ND
2014-01-0824405701ND
2014-04-0225334601ND
2014-04-0225334501ND
2014-07-0926110301ND
2014-07-0926110201ND
2014-10-0127098701ND
2014-10-0127098801ND
2015-01-0712297075ND
2015-01-0712297054ND
2015-04-1512642924ND
2015-04-1512642903ND
2015-07-1513023162ND
2015-07-1513023141ND
2015-10-0613399420ND
2015-10-0613399441ND
2016-01-0513763239ND
2016-01-0513763260ND
2016-04-0514115632ND
2016-04-0514115653ND
2016-07-0114583666ND
2016-07-0114583687ND
2016-10-0515088564ND
2016-10-0515088543ND
2017-01-0515529629ND
2017-01-0515529650ND
2017-04-0515950750ND
2017-04-0515950771ND
2017-07-0716426353ND
2017-07-0716426374ND
2017-10-0516892554ND
2017-10-0516892575ND
2018-01-1038158601ND
2018-04-0439069901ND
2018-07-0340201501ND
2018-10-0441308901ND
2019-01-0942495701ND
2019-04-1043656201ND
2019-07-1645013801ND
2019-10-1046829601ND