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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

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

MORE ABOUT THIS CONTAMINANT

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND340ND
2015ND40ND
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

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
2014-07-3014-11302ND
2014-07-3014-11303ND
2014-08-1214-12048ND
2014-08-1214-12045ND
2014-08-1214-12049ND
2014-08-1214-12046ND
2014-08-1214-12050ND
2014-08-1214-12044ND
2014-08-1214-12047ND
2014-08-2514-12765ND
2014-08-2514-12766ND
2014-08-2514-12767ND
2014-08-2514-12768ND
2014-09-0814-13540ND
2014-09-0814-13538ND
2014-09-0814-13539ND
2014-09-0814-13537ND
2014-09-2214-14395ND
2014-09-2214-14393ND
2014-09-2214-14394ND
2014-09-2214-14392ND
2014-10-1014-15405ND
2014-10-1014-15403ND
2014-10-1014-15406ND
2014-10-1014-15404ND
2014-10-1014-15402ND
2014-10-2014-15917ND
2014-10-2014-15915ND
2014-10-2014-15916ND
2014-10-2014-15918ND
2014-10-2014-15914ND
2014-10-2414-16212ND
2014-10-2414-15213ND
2014-10-2414-16213ND
2015-02-15460013-JAMES R.ND
2015-04-23460013-JAMES R.ND
2015-07-23460013-JAMES R.ND
2015-10-22460013-JAMES R.ND
2016-01-2816-01344ND
2017-01-1317-00704-VOCND
2018-01-2318-01369ND
2019-01-2419-01404ND