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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Marion Waterworks

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

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND70ND
2015ND80ND
2016ND20ND
2017ND30ND
2018ND60ND
2019ND20ND

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
2014-04-0714100000501ND
2014-07-1414198000501ND
2014-07-1414198000701ND
2014-07-1414198000601ND
2014-11-1014316000601ND
2014-11-1014316000501ND
2014-11-2414330004001ND
2015-01-2715029007401ND
2015-01-2715029007302ND
2015-06-0915161002901ND
2015-06-0915161003001ND
2015-09-1615260000309ND
2015-09-1615260000409ND
2015-09-1615260000509ND
2015-11-1915324001609ND
2016-02-1516049004901ND
2016-07-1216196006901ND
2017-01-1617019008201ND
2017-08-0117215002201ND
2017-12-0617341002009ND
2018-01-1818019004206ND
2018-01-1818019004301ND
2018-04-1018101008309ND
2018-08-1518228001209ND
2018-08-1518228001309ND
2018-08-1518228001409ND
2019-01-0719010014901ND
2019-07-3019212004401ND