Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

1,1-Dichloroethylene

Pennsylvania American Royersford

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

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND90ND
2015ND100ND
2016ND40ND
2017ND50ND

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
2012-02-0816353301ND
2012-02-0816353901ND
2013-04-2321984601ND
2013-04-2321984701ND
2014-04-0225340001ND
2014-04-0225341501ND
2014-04-0325340301ND
2014-04-0325340801ND
2014-06-2525340501ND
2014-08-0626818001ND
2014-08-0626818101ND
2014-10-0627104001ND
2014-10-0627103901ND
2015-01-0812283052ND
2015-01-0812283031ND
2015-04-0912628872ND
2015-04-0912628893ND
2015-04-0912628937ND
2015-04-0912628914ND
2015-07-1313008753ND
2015-09-1613260279ND
2015-10-0613385340ND
2015-10-0613385319ND
2016-04-0514097876ND
2016-04-0514097834ND
2016-04-0514097899ND
2016-04-0514097855ND
2017-04-1115931644ND
2017-04-1115931581ND
2017-04-1115931667ND
2017-04-1115931602ND
2017-04-1115931623ND