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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Yorktown Water

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

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND70ND
2017ND10ND
2018ND40ND
2019ND40ND

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
2014-04-0914100003701ND
2014-04-0914100003501ND
2014-04-0914100003602ND
2014-04-0914100003401ND
2015-05-2615148007301ND
2015-05-2615148007401ND
2015-05-2615148007601ND
2015-05-2615148007502ND
2016-06-1416168007201ND
2016-06-1416168005301ND
2016-06-1416168005401ND
2016-06-1416168007301ND
2016-06-1416168005201ND
2016-06-1416168004601ND
2016-06-1416168007102ND
2017-05-3017152005802ND
2018-05-2918151003501ND
2018-08-2018235006001ND
2018-08-2018235005901ND
2018-08-2018235006101ND
2019-05-0619129006401ND
2019-05-0619129005801ND
2019-05-0619129006501ND
2019-05-0619129006601ND