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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Widefield WSD

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

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41

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
2014ND60ND
2015ND80ND
2016ND110ND
2017ND60ND
2018ND40ND
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 Result
2014-02-12ND
2014-03-12ND
2014-03-19ND
2014-06-16ND
2014-09-16ND
2014-12-04ND
2015-01-27ND
2015-06-08ND
2015-06-08ND
2015-06-09ND
2015-09-21ND
2015-09-21ND
2015-09-22ND
2015-12-07ND
2016-03-14ND
2016-05-02ND
2016-05-02ND
2016-05-02ND
2016-05-03ND
2016-05-03ND
2016-08-08ND
2016-08-23ND
2016-08-23ND
2016-09-06ND
2016-12-05ND
2017-01-18ND
2017-05-24ND
2017-06-07ND
2017-06-07ND
2017-06-07ND
2017-08-30ND
2018-08-21ND
2018-08-21ND
2018-11-26ND
2018-11-27ND
2019-02-26ND
2019-02-26ND
2019-02-26ND
2019-05-06ND
2019-05-28ND
2019-09-09ND