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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Wells St. Station 425 West

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
2014N/A00N/A
2015ND20ND
2016ND40ND
2017ND10ND
2018ND10ND
2019ND10ND

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
2015-12-07897092ND
2015-12-221512H04-001AND
2016-02-23906632ND
2016-04-20917337ND
2016-08-311609208-001AND
2016-10-27956525ND
2017-03-211703D79-001AND
2018-02-151041284ND
2019-07-111134038ND