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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

United Water Pa Mechanicsburg

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

MORE ABOUT THIS CONTAMINANT

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND90ND
2016ND70ND
2017ND50ND
2018ND50ND
2019ND60ND

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
2014-02-121071699003ND
2014-02-121071699001ND
2014-04-152001635001ND
2014-04-152001635002ND
2014-07-072016172003ND
2014-10-092033532001ND
2015-02-0312479187ND
2015-02-0312479142ND
2015-05-1112841439ND
2015-05-1112841462ND
2015-07-0712974656ND
2015-07-0712974677ND
2015-10-0713475181ND
2015-10-0713475160ND
2015-10-0713475204ND
2016-01-1313834604ND
2016-01-1313834581ND
2016-01-1313834625ND
2016-04-1914206402ND
2016-08-1014857575ND
2016-08-1014857596ND
2016-11-1015326807ND
2017-02-0715752204ND
2017-02-1415752248ND
2017-05-0216208291ND
2017-08-0116520097ND
2017-10-1016981634ND
2018-02-232297488001ND
2018-02-232297488002ND
2018-05-011810634-01ND
2018-08-071821380-01ND
2018-11-123000062001ND
2019-01-15H9A0708-01ND
2019-01-15H9A0708-02ND
2019-04-10H9D0711-01ND
2019-08-06H9H0636-01ND
2019-08-07H9H0668-01ND
2019-11-05H9K0519-01ND