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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Utilities Inc. - North Park Water Supply

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

MORE ABOUT THIS CONTAMINANT

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND100ND
2017ND20ND
2018N/A00N/A
2019ND120ND

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
2014-02-19AD89214ND
2014-02-19AD89214ND
2016-05-1735245513002ND
2016-05-1735245513001ND
2016-05-1735245513005ND
2016-05-1735245513004ND
2016-05-1735245513003ND
2016-05-1735245513001ND
2016-05-1735245513002ND
2016-05-1735245513003ND
2016-05-1735245513004ND
2016-05-1735245513005ND
2017-01-2335291489005ND
2017-01-2335291489005ND
2019-02-2635451101001ND
2019-02-2635451101005ND
2019-02-2635451101004ND
2019-02-2635451101003ND
2019-02-2635451101002ND
2019-02-2635451101001ND
2019-02-2635451101005ND
2019-02-2635451101004ND
2019-02-2635451101003ND
2019-02-2635451101002ND
2019-10-1535505694001ND
2019-10-1535505694001ND