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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

City of Westminster

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

MORE ABOUT THIS CONTAMINANT

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND170ND
2015ND110ND
2016ND110ND
2017ND130ND
2018ND100ND
2019ND100ND

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
2014-01-284417-004-0815ND
2014-01-284417-005-0855ND
2014-01-284417-006-0925ND
2014-01-284417-016-1000ND
2014-01-294417-001-0820ND
2014-01-294417-040-0920ND
2014-01-294417-030-0855ND
2014-01-304417-038-0745ND
2014-01-304417-002-0820ND
2014-04-224417-002-0840ND
2014-04-234417-040-0850ND
2014-04-244417-038-0805ND
2014-04-244417-018-0840ND
2014-07-294417-038-0755ND
2014-07-294417-002-0835ND
2014-07-304417-040-0850ND
2014-10-284417-038-0820ND
2015-01-264417-004-0930ND
2015-01-264417-006-0830ND
2015-01-264417-002-0755ND
2015-01-274417-001-0755ND
2015-01-274417-005-0830ND
2015-01-284417-040-0840ND
2015-01-284417-030-0810ND
2015-03-254417-038-0825ND
2015-03-254417-016-0850ND
2015-04-224417-018-0915ND
2015-09-144417-002-0955ND
2016-01-204417-004-0820ND
2016-01-204417-038-0855ND
2016-01-204417-030-0915ND
2016-01-204417-016-0945ND
2016-01-264417-001-0835ND
2016-01-264417-005-0805ND
2016-01-274417-040-0810ND
2016-04-254417-006-0830ND
2016-06-274417-018-0930ND
2016-07-134417-002-0935ND
2016-07-144417-018-0920ND
2017-01-124417-004-1000ND
2017-01-124417-016-1035ND
2017-01-244417-030-0915ND
2017-01-244417-040-0845ND
2017-01-244417-038-0810ND
2017-01-314417-001-1000ND
2017-01-314417-005-0840ND
2017-01-314417-006-0910ND
2017-03-084417-001-0850ND
2017-03-084417-005-0815ND
2017-04-174417-018-0925ND
2017-04-194417-006-1130ND
2017-04-204417-002-0920ND
2018-01-164417-004-0820ND
2018-01-164417-040-0910ND
2018-01-174417-038-0800ND
2018-01-174417-016-0830ND
2018-01-184417-005-0905ND
2018-01-184417-001-0830ND
2018-01-184417-030-0800ND
2018-04-114417-018-0940ND
2018-04-124417-006-1030ND
2018-04-164417-002-0900ND
2019-01-284417-001-0810ND
2019-01-284417-016-0910ND
2019-01-284417-005-0950ND
2019-01-314417-004-0915ND
2019-01-314417-040-1000ND
2019-01-314417-030-0840ND
2019-01-314417-038-0820ND
2019-04-164417-002-0955ND
2019-04-174417-018-0850ND
2019-04-174417-006-0800ND