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EWG's Tap Water Database — 2019 UPDATE

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1,1-Dichloroethylene

Rocky Branch Water System

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND80ND
2015N/A00N/A
2016N/A00N/A
2017ND80ND

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
2014-02-17AD89245ND
2014-02-17AD89245ND
2014-02-17AD89244ND
2014-02-17AD89244ND
2014-07-15AD93577ND
2014-07-15AD93578ND
2014-07-15AD93578ND
2014-07-15AD93577ND
2017-03-1435301204004ND
2017-03-1435301204003ND
2017-03-1435301204003ND
2017-03-1435301204004ND
2017-07-1035324127011ND
2017-07-1035324127010ND
2017-07-1035324127011ND
2017-07-1035324127010ND