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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

East Cherry Creek Valley Water and Sanitation District

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

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46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND100ND
2016ND40ND
2017ND30ND
2018ND70ND
2019ND180ND

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
2014-02-21ND
2014-05-19ND
2014-08-18ND
2014-11-19ND
2015-02-03ND
2015-02-03ND
2015-06-08ND
2015-06-08ND
2015-06-08ND
2015-06-08ND
2015-06-23ND
2015-06-23ND
2015-06-23ND
2015-06-23ND
2016-03-08ND
2016-08-03ND
2016-08-25ND
2016-08-31ND
2017-06-20ND
2017-08-15ND
2017-11-07ND
2018-02-06ND
2018-04-12ND
2018-07-20ND
2018-07-20ND
2018-07-20ND
2018-07-20ND
2018-07-20ND
2019-04-22ND
2019-04-22ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-21ND
2019-06-24ND
2019-06-25ND
2019-06-27ND
2019-10-24ND
2019-10-28ND
2019-11-14ND
2019-11-14ND
2019-11-14ND
2019-12-03ND
2019-12-09ND
2019-12-10ND
2019-12-12ND