Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1-Dichloroethylene

Swta - Main System

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

MORE ABOUT THIS CONTAMINANT

 

36

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
2015ND50ND
2016ND40ND
2017ND90ND
2018ND60ND
2019ND50ND

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
2014-01-2814013332-001ND
2014-01-2814013329-001ND
2014-01-2814013341-001ND
2014-01-2814013340-001ND
2014-01-2814013343-001ND
2014-01-2814013335-001ND
2014-01-2814013345-001ND
2015-08-1113172045ND
2015-08-1113172025ND
2015-08-1113172081ND
2015-10-1613426082ND
2015-11-0413549455ND
2016-12-2215415745ND
2016-12-2215415724ND
2016-12-2215415682ND
2016-12-2215415703ND
2017-04-1815985822ND
2017-04-1815985909ND
2017-04-1815986062ND
2017-04-1815985874ND
2017-04-1815985769ND
2017-04-1815986011ND
2017-04-1815985960ND
2017-09-1916772894ND
2017-10-0316922839ND
2018-01-098012152-02ND
2018-04-108042613-02ND
2018-04-108042612-01ND
2018-04-108042612-02ND
2018-04-108042612-03ND
2018-04-108042612-04ND
2019-04-239044997-05ND
2019-04-239044997-01ND
2019-04-239044997-02ND
2019-04-239044997-03ND
2019-04-239044997-04ND