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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Mercy 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

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND30ND
2016ND100ND
2017ND40ND
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
2015-04-07AC87526ND
2015-04-07AC87520ND
2015-04-07AC87516ND
2016-01-14AD18249ND
2016-01-14AD18293ND
2016-01-14AD18247ND
2016-01-14AD18299ND
2016-01-14AD18245ND
2016-04-04AD31669ND
2016-07-29AD46459ND
2016-09-24AD51176ND
2016-11-07AD56823ND
2016-11-07AD56809ND
2017-07-26AD90855ND
2017-07-26AD90853ND
2017-10-09AD99854ND
2017-10-09AD99850ND
2018-04-03AE21053ND
2018-04-03AE21049ND
2018-04-03AE21047ND
2018-04-03AE21051ND
2019-03-28AE60490ND
2019-03-28AE60492ND
2019-03-28AE60494ND
2019-03-28AE60496ND