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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Tract 180 Mutual Water Company

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

MORE ABOUT THIS CONTAMINANT

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.490 ppb43ND - 0.810 ppb
2015ND40ND
20160.0757 ppb71ND - 0.530 ppb
2017ND80ND
2018ND80ND
20190.0813 ppb81ND - 0.650 ppb

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
2014-01-279588-004-10120.810 ppb
2014-04-159588-004-10350.600 ppb
2014-07-319588-004-14450.550 ppb
2014-09-249588-005-0940ND
2015-05-219588-004-0900ND
2015-08-079588-005-0928ND
2015-08-079588-004-0949ND
2015-10-299588-004-0942ND
2016-03-239588-004-0946ND
2016-06-209588-004-10050.530 ppb
2016-06-209588-005-0955ND
2016-07-199588-005-0949ND
2016-07-199588-004-0958ND
2016-10-109588-005-0903ND
2016-10-109588-004-0913ND
2017-01-179588-004-1006ND
2017-01-179588-005-0947ND
2017-04-289588-004-1010ND
2017-04-289588-005-0945ND
2017-07-109588-004-0943ND
2017-07-109588-005-0927ND
2017-10-069588-004-0924ND
2017-10-069588-005-0915ND
2018-01-169588-005-0955ND
2018-01-169588-004-1008ND
2018-04-199588-004-0959ND
2018-04-199588-005-0947ND
2018-07-249588-004-0955ND
2018-07-249588-005-0935ND
2018-10-169588-005-0940ND
2018-10-169588-004-0954ND
2019-01-249588-004-10100.650 ppb
2019-01-249588-005-1000ND
2019-05-149588-005-0850ND
2019-05-149588-004-0905ND
2019-08-239588-005-0940ND
2019-08-239588-004-0950ND
2019-10-289588-005-0940ND
2019-10-289588-004-1010ND