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EWG's Tap Water Database — 2019 UPDATE

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1,1-Dichloroethylene

Hca Roan Filter Plant

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND10ND
2015ND40ND
2016ND10ND
2017ND10ND

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
2012-10-1012100843-01ND
2013-11-0613111236-01ND
2014-10-1614101724-01ND
2015-10-2313401629ND
2015-10-2713401686ND
2015-11-1213526729ND
2015-11-1613526750ND
2016-11-1715240832ND
2017-11-1517037879ND