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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Hempstead

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

MORE ABOUT THIS CONTAMINANT

 

168

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
2014ND310ND
2015ND280ND
2016ND290ND
2017ND260ND
2018ND250ND
2019ND290ND

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
2014-01-291401C35-001A-POCND
2014-01-291401C34-001A-POCND
2014-02-201402A09-001A-POCND
2014-02-251402D21-001A-POCND
2014-03-041403148-001A-POCND
2014-03-041403146-001A-POCND
2014-03-181403C85-001A-POCND
2014-04-081404597-001A-POCND
2014-04-221404F92-001A-POCND
2014-05-131405930-001A-POCND
2014-05-201405E41-001A-POCND
2014-06-031406165-001-POCSND
2014-06-031406165-001A-POCND
2014-06-041406286-001A-POCND
2014-06-101406726-001-POCSND
2014-06-101406742-001A-POCND
2014-07-011407063-001A-POCND
2014-07-091407606-001A-POCND
2014-08-191408D09-001A-POCND
2014-08-261408I76-001A-POCND
2014-09-091409644-005-POCSND
2014-09-171409D22-001A-POCND
2014-09-171409D20-001-POCSND
2014-09-231409I14-001A-POCND
2014-10-071410472-001A-POCND
2014-10-151410A28-001A-POCND
2014-11-131411911-001-POCSND
2014-11-181411C27-002-POCSND
2014-11-181411C31-002-POCSND
2014-12-101412803-002-POCSND
2014-12-161412C20-001-POCSND
2015-01-211501C73-001-POCSND
2015-01-281501F99-001-POCSND
2015-02-101502561-001-POCSND
2015-02-181502A85-001ND
2015-03-031503137-002ND
2015-03-101503603-001ND
2015-03-101503604-001ND
2015-04-281504L26-002ND
2015-04-281504L26-001ND
2015-05-051505272-001ND
2015-05-131505930-001ND
2015-06-161506D01-001-POCSND
2015-06-241506J59-005-POCSND
2015-06-241506J59-001-POCSND
2015-07-071507435-001-POCSND
2015-07-211507F25-001-POCSND
2015-08-181508E19-001-POCSND
2015-09-021509051-001-POCSND
2015-09-101509779-001-POCSND
2015-09-151509A46-001-POCSND
2015-09-221509G69-002-POCSND
2015-10-201510F13-001-POCSND
2015-10-271510K26-001-POCSND
2015-11-121511A11-001-POCSND
2015-11-171511D02-001-POCSND
2015-12-091512828-001-POCSND
2015-12-151512C85-001-POCSND
2015-12-151512C79-002-POCSND
2016-01-121601669-001-POCSND
2016-01-201601D57-POCSND
2016-02-171602C78-001-POCSND
2016-02-231602G61-001-POCSND
2016-03-081603590-001-POCSND
2016-03-151603C43-002-POCSND
2016-03-231603I82-001-POCSND
2016-04-051604352-001-POCSND
2016-04-191604H89-001-POCSND
2016-05-101605871-001-POCSND
2016-05-171605F36-001-POCSND
2016-06-141606D52-001-POCSND
2016-06-141606D50-001-POCSND
2016-06-211606L63-001-POCSND
2016-07-061607390-001-POCSND
2016-07-191607F04-001-POCSND
2016-08-031608389-001-POCSND
2016-08-161608F38-001-POCSND
2016-09-071609469-001-POCSND
2016-09-131609902-002-POCSND
2016-09-271609N43-001ND
2016-10-04701150001-POCSND
2016-10-18702313001ND
2016-11-09704075001-POCSND
2016-11-22705406001ND
2016-12-06706091001-POCSND
2016-12-13706740001-POCSND
2016-12-137013417001-POCSND
2016-12-20707347005-POCSND
2017-01-0470825003-POCSND
2017-01-18709353001-POCSND
2017-02-077010730001-POCSND
2017-02-227011881001-POCSND
2017-03-217013852001-POCSND
2017-04-117015515001-POCSND
2017-04-187016167001-POCSND
2017-05-027017451001-POCSND
2017-05-237019308003ND
2017-06-067020501001ND
2017-06-147021347001ND
2017-06-277022533001ND
2017-06-277022528001ND
2017-07-117023666001ND
2017-07-187024503001ND
2017-08-017025832001ND
2017-08-227027938001ND
2017-09-127029635001ND
2017-09-197030329002-POCSND
2017-09-197030331001-POCSND
2017-10-037031709001ND
2017-10-247033856001ND
2017-11-087035209001ND
2017-11-087035206002ND
2017-12-057036295001ND
2017-12-197038532001ND
2018-01-097039903001ND
2018-01-237041070001ND
2018-02-127042800002ND
2018-02-217043500001ND
2018-02-277044000001ND
2018-03-147045271001ND
2018-03-147046546001ND
2018-03-207045783001ND
2018-04-107047832001ND
2018-04-257049555001ND
2018-05-087050947001ND
2018-06-127054603001ND
2018-08-077060661006ND
2018-08-217062347001ND
2018-08-287063048001ND
2018-09-057063737001ND
2018-09-127064529001ND
2018-09-187065194001ND
2018-10-167068129001ND
2018-10-237068807001ND
2018-11-147071100001ND
2018-11-277072025001ND
2018-12-117073509001ND
2018-12-197074394001ND
2018-12-197074395001ND
2019-01-157076614001ND
2019-01-237077375001ND
2019-02-057078466001ND
2019-02-057078470001ND
2019-02-207080153001ND
2019-03-057081281001ND
2019-03-197082761001ND
2019-04-027084186001ND
2019-04-237086905001ND
2019-04-307087613002ND
2019-05-077088385001ND
2019-05-147089380002ND
2019-05-217090323001ND
2019-06-047092029001ND
2019-06-197094366001ND
2019-07-027096100001ND
2019-07-247098718001ND
2019-08-067010011300ND
2019-08-1270101133003ND
2019-08-2070102088001ND
2019-09-0470103662001ND
2019-09-2570106222001ND
2019-10-0270107009001ND
2019-10-1670108640001ND
2019-10-2970109994001ND
2019-11-0770111125001ND
2019-11-1970112385001ND
2019-11-2670113202001ND
2019-12-2470116370001ND