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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Aqua Water Supply Corporation

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

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
2014ND30ND
2015ND110ND
2016ND80ND
2017ND90ND
2018ND110ND
2019ND80ND

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
2014-02-05AC41501ND
2014-02-05AC41499ND
2014-08-13AC63409ND
2015-02-09AC79748ND
2015-02-09AC79752ND
2015-02-09AC79742ND
2015-02-09AC79744ND
2015-02-09AC79750ND
2015-02-09AC79746ND
2015-02-10AC79981ND
2015-02-10AC79973ND
2015-02-10AC79985ND
2015-02-10AC79983ND
2015-02-10AC79977ND
2016-01-26AD20134ND
2016-01-26AD20116ND
2016-01-26AD20118ND
2016-01-26AD20130ND
2016-01-26AD20138ND
2016-01-26AD20122ND
2016-01-26AD20120ND
2016-01-26AD20124ND
2017-01-11AD64322ND
2017-01-11AD64332ND
2017-01-11AD64334ND
2017-01-11AD64336ND
2017-01-12AD64778ND
2017-01-12AD64780ND
2017-01-12AD64786ND
2017-01-12AD64782ND
2017-01-12AD64776ND
2018-01-25AE10610ND
2018-01-25AE10604ND
2018-01-25AE10548ND
2018-01-25AE10554ND
2018-01-25AE10542ND
2018-01-25AE10624ND
2018-01-25AE10546ND
2018-01-25AE10620ND
2018-01-25AE10552ND
2018-01-25AE10544ND
2018-01-25AE10550ND
2019-05-15AE66520ND
2019-05-15AE66532ND
2019-05-15AE66530ND
2019-05-15AE66524ND
2019-05-15AE66522ND
2019-05-15AE66518ND
2019-05-15AE66528ND
2019-05-15AE66526ND