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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

MDWASA/REX Utilities

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

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND40ND
2016ND50ND
2017ND50ND
2018ND40ND
2019ND50ND

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 Result
2014-01-14ND
2014-01-14ND
2014-01-14ND
2014-01-14ND
2014-01-14ND
2015-01-14ND
2015-01-14ND
2015-01-14ND
2015-01-14ND
2016-10-11ND
2016-10-11ND
2016-10-11ND
2016-10-11ND
2016-10-11ND
2017-01-04ND
2017-01-04ND
2017-01-04ND
2017-01-04ND
2017-01-04ND
2018-01-16ND
2018-01-16ND
2018-01-16ND
2018-01-16ND
2019-03-07ND
2019-03-07ND
2019-03-07ND
2019-03-07ND
2019-03-07ND