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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Massapequa WD

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

MORE ABOUT THIS CONTAMINANT

 

225

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND440ND
2015ND380ND
2016ND370ND
2017ND350ND
2018ND350ND
2019ND360ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-111402506-002-POCSND
2014-02-111402506-001-POCSND
2014-02-191402919-005-POCSND
2014-02-191402919-001-POCSND
2014-02-261402E62-001-POCSND
2014-03-121403860-002-POCSND
2014-03-121403860-001-POCSND
2014-03-131403886-002-POCSND
2014-03-131403886-001-POCSND
2014-04-161404C48-002-POCSND
2014-04-161404C48-001-POCSND
2014-04-231404H27-002-POCSND
2014-04-231404H27-001-POCSND
2014-04-301404M25-002-POCSND
2014-04-301404M25-001-POCSND
2014-05-141405A22-001-POCSND
2014-05-141405A22-003-POCSND
2014-05-141405A22-002-POCSND
2014-07-111407C01-002-POCSND
2014-07-111407791-001-POCSND
2014-07-111407791-004-POCSND
2014-07-111407791-002-POCSND
2014-07-117791-003-POCSND
2014-07-161407C01-001-POCSND
2014-07-171407C97-001-POCSND
2014-07-221407F69-001-POCSND
2014-07-241407H83-001-POCSND
2014-10-151410A42-001-POCSND
2014-10-151410A42-002-POCSND
2014-10-151410A42-003-POCSND
2014-10-151410A42-005-POCSND
2014-10-151410A42-004-POCSND
2014-10-171410B94-001-POCSND
2014-10-171410B94-004-POCSND
2014-10-171410B94-003-POCSND
2014-10-171410B94-002-POCSND
2014-11-051411278-001-POCSND
2014-11-051411278-002-POCSND
2014-11-121411783-001-POCSND
2014-11-121411783-002-POCSND
2014-11-261411H90-001-POCSND
2014-11-261411H90-002-POCSND
2014-12-101412797-001-POCSND
2014-12-101412797-002-POCSND
2015-01-081501383-001-POCSND
2015-01-081501383-002-POCSND
2015-01-121501542-001-POCSND
2015-01-121501542-002-POCSND
2015-01-121501542-004-POCSND
2015-01-121501549-002-POCSND
2015-01-121501542-003-POCSND
2015-01-121501549-01-POCSND
2015-01-131501625-001-POCSND
2015-01-131501625-002-POCSND
2015-01-131501625-003-POCSND
2015-04-211504F81-002-POCSND
2015-04-211504F81-001-POCSND
2015-04-211504F81-004-POCSND
2015-04-211504F81-003-POCSND
2015-04-221504H33-002ND
2015-04-221504H33-001ND
2015-04-231504H82-002ND
2015-04-231504H82-003ND
2015-04-231504H82-001ND
2015-07-171507C96-002-POCSND
2015-07-171507C96-003-POCSND
2015-07-171507C96-001-POCSND
2015-07-171507C96-004-POCSND
2015-07-201507D84-002-POCSND
2015-07-201507D84-001-POCSND
2015-07-211507F35-001-POCSND
2015-07-211507F35-003-POCSND
2015-07-211507F35-002-POCSND
2015-10-131510925-002-POCSND
2015-10-131510925-001-POCSND
2015-10-131510925-004-POCSND
2015-10-131510925-003-POCSND
2015-10-151510B64-005-POCSND
2015-10-151510B64-002-POCSND
2015-10-151510B64-003-POCSND
2015-10-151510N64-004-POCSND
2015-10-151510B64-001-POCSND
2016-01-151601A30-003-POCSND
2016-01-151601A30-004-POCSND
2016-01-151601A30-001-POCSND
2016-01-151601A30-002-POCSND
2016-01-201601D67-002-POCSND
2016-01-201601D67-001-POCSND
2016-01-261601G76-003-POCSND
2016-01-261601G76-001-POCSND
2016-01-261601G76-002-POCSND
2016-04-191604H93-001-POCSND
2016-04-191604H93-002-POCSND
2016-04-211604K24-001-POCSND
2016-04-221604L16-001-POCSND
2016-04-221604L16-002-POCSND
2016-04-251604M31-001-POCSND
2016-04-251604M31-002-POCSND
2016-05-051605505-001-POCSND
2016-05-051605505-002-POCSND
2016-05-061605626-002-POCSND
2016-07-271607O36-001-POCSND
2016-07-271607O36-002-POCSND
2016-07-281608095-002-POCSND
2016-07-281607P24-002-POCSND
2016-07-281607P24-001-POCSND
2016-07-281608095-001-POCSND
2016-08-021608211-001-POCSND
2016-08-021608211-002-POCSND
2016-08-041608560-001-POCSND
2016-10-14702096002-POCSND
2016-10-14702096001-POCSND
2016-10-17702208002ND
2016-10-17702208003ND
2016-10-17702208001-POCSND
2016-10-17702208004ND
2016-10-18702292003ND
2016-10-18702292002ND
2016-10-18702292001ND
2017-01-18709379002-POCSND
2017-01-18709379001-POCSND
2017-01-18709379005-POCSND
2017-01-18709379003-POCSND
2017-01-18709379004-POCSND
2017-01-23709668004-POCSND
2017-01-23709668003-POCSND
2017-01-23709668001-POCSND
2017-01-23709668002-POCSND
2017-04-177016045005-POCSND
2017-04-177016045006-POCSND
2017-04-197016362001ND
2017-04-197016362003ND
2017-04-197016362004ND
2017-04-197016362002ND
2017-04-217016581001ND
2017-05-047017744001-POCSND
2017-07-177024338001-POCSND
2017-07-187024562001-POCSND
2017-07-207024851002-POCSND
2017-07-207024851001-POCSND
2017-07-317025739002ND
2017-07-317025739001ND
2017-08-017025801001ND
2017-08-037026153002ND
2017-08-037026153001ND
2017-10-127032769005ND
2017-10-127032769009ND
2017-10-127032769008ND
2017-10-127032769007ND
2017-10-127032769006ND
2017-10-137032846001ND
2017-10-137032846003ND
2017-10-137032846002ND
2017-10-137032846004ND
2018-01-097039905004ND
2018-01-097039905005ND
2018-01-097039905003ND
2018-01-097039905002ND
2018-01-097039905001ND
2018-01-167040490003ND
2018-01-167040490004ND
2018-01-167040490002ND
2018-01-167040490001ND
2018-04-107047886004ND
2018-04-107047886003ND
2018-04-107047886002ND
2018-04-107047886001ND
2018-04-117048085005ND
2018-04-117048085004ND
2018-04-117048085003ND
2018-04-117048085001ND
2018-04-117048085002ND
2018-07-107057637001ND
2018-07-107057637002ND
2018-07-117057834002-POCSND
2018-07-117057834001-POCSND
2018-07-177058488001-POCSND
2018-07-177058488002-POCSND
2018-07-197058853001ND
2018-07-207059020001-POCSND
2018-10-037066738002ND
2018-10-037066738001ND
2018-10-097067408001ND
2018-10-097067408002ND
2018-10-107067488001ND
2018-10-107067488002ND
2018-10-117067694001ND
2018-10-117067694002ND
2018-10-1668094001ND
2019-01-077076069002ND
2019-01-077075721001ND
2019-01-077076069003ND
2019-01-077075721003ND
2019-01-077075721002ND
2019-01-077076069001ND
2019-01-187077048002ND
2019-01-187077048001ND
2019-01-317078061001ND
2019-04-037084388005ND
2019-04-037084388004ND
2019-04-037084388003ND
2019-04-037084388001ND
2019-04-037084388002ND
2019-04-047084649002ND
2019-04-047084649001ND
2019-04-047084649003ND
2019-05-097088846001ND
2019-07-237098569002ND
2019-07-237098569001ND
2019-07-247098725001ND
2019-07-247098725002ND
2019-07-257098888001ND
2019-07-257098888002ND
2019-07-267099079003ND
2019-07-267099079001ND
2019-07-267099079002ND
2019-10-1170108249002ND
2019-10-1170108249001ND
2019-10-1570108084005ND
2019-10-1570108084002ND
2019-10-1570108084001ND
2019-10-1570108084004ND
2019-10-1570108084003ND
2019-10-1570108409001ND
2019-10-1570108409002ND