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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

North Penn Water Authority

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

MORE ABOUT THIS CONTAMINANT

 

310

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND510ND
2015ND470ND
2016ND600ND
2017ND590ND
2018ND480ND
2019ND450ND

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
2014-01-2020140222ND
2014-01-2020140223ND
2014-01-2020140224ND
2014-01-2020140225ND
2014-02-1220140545ND
2014-02-1220140546ND
2014-02-1220140542ND
2014-02-1220140543ND
2014-02-1220140544ND
2014-02-1220140547ND
2014-03-0520140816ND
2014-03-0520140817ND
2014-03-0520140818ND
2014-03-0520140819ND
2014-03-0520140820ND
2014-04-0220141122ND
2014-04-0220141123ND
2014-04-0220141125ND
2014-04-0220141124ND
2014-05-1920141698ND
2014-05-1920141699ND
2014-05-1920141700ND
2014-05-1920141701ND
2014-06-0420141932ND
2014-06-0420141933ND
2014-06-0420141935ND
2014-06-0420141936ND
2014-06-0420141934ND
2014-07-1620142445ND
2014-07-1620142446ND
2014-07-1620142447ND
2014-08-1820142827ND
2014-08-1820142828ND
2014-08-1820142824ND
2014-08-1820142825ND
2014-08-1820142826ND
2014-08-1820142829ND
2014-09-0820143077ND
2014-09-0820143078ND
2014-09-0820143079ND
2014-09-0820143080ND
2014-09-0820143081ND
2014-11-1014110622-001ND
2014-11-1014110622-002ND
2014-11-1014110622-003ND
2014-11-1014110622-004ND
2014-12-0820144185ND
2014-12-0820144186ND
2014-12-0820144188ND
2014-12-0820144189ND
2014-12-0820144187ND
2015-01-1912287154ND
2015-01-1912287175ND
2015-01-1912287196ND
2015-01-1912287217ND
2015-02-0912402101ND
2015-02-0912402122ND
2015-02-0912402038ND
2015-02-0912402059ND
2015-02-0912402080ND
2015-02-0912402143ND
2015-04-2012633459ND
2015-04-2012633480ND
2015-04-2012633522ND
2015-04-2012633501ND
2015-06-1512882973ND
2015-07-1313013068ND
2015-07-1313013094ND
2015-07-1313013120ND
2015-07-1313013146ND
2015-07-1313013172ND
2015-08-1713135669ND
2015-08-1713135690ND
2015-08-1713135732ND
2015-08-1713135753ND
2015-08-1713135711ND
2015-08-1713135774ND
2015-09-1413264711ND
2015-09-1413264737ND
2015-09-1413264763ND
2015-10-0513389215ND
2015-10-0513389236ND
2015-10-0513389278ND
2015-10-0513389257ND
2015-11-1113514206ND
2015-11-1113514143ND
2015-11-1113514164ND
2015-11-1113514185ND
2015-11-1113514227ND
2015-12-0213633347ND
2015-12-0213633373ND
2015-12-0213633399ND
2015-12-0213633425ND
2015-12-0213633451ND
2015-12-0213633477ND
2015-12-0913633503ND
2015-12-0913633303ND
2015-12-1413633324ND
2016-01-1813753166ND
2016-01-1813753187ND
2016-01-1813753208ND
2016-01-1813753229ND
2016-02-1713870703ND
2016-02-1713870724ND
2016-02-1713870640ND
2016-02-1713870661ND
2016-02-1713870682ND
2016-02-1713870745ND
2016-03-0213986054ND
2016-03-0213986080ND
2016-03-0213986106ND
2016-03-0213986132ND
2016-03-0213986158ND
2016-04-1814102971ND
2016-04-1814102992ND
2016-04-1814103034ND
2016-04-1814103013ND
2016-05-1614250806ND
2016-05-1614250827ND
2016-05-1614250848ND
2016-05-1614250869ND
2016-06-0614405891ND
2016-06-0614405918ND
2016-06-0614405972ND
2016-06-0614405999ND
2016-06-0614405945ND
2016-07-1814569952ND
2016-07-1814569973ND
2016-07-1814569994ND
2016-07-1814570015ND
2016-08-0114735672ND
2016-08-0114735693ND
2016-08-0114735609ND
2016-08-0114735630ND
2016-08-0114735651ND
2016-08-0114735714ND
2016-08-2314907953ND
2016-09-0714908080ND
2016-09-0714908107ND
2016-09-0714908134ND
2016-09-0714908161ND
2016-09-0714908188ND
2016-10-2415075729ND
2016-10-2415075750ND
2016-10-2415075792ND
2016-10-2415075771ND
2016-11-1415226166ND
2016-11-1415226082ND
2016-11-1415226103ND
2016-11-1415226208ND
2016-11-1415226124ND
2016-11-1415226187ND
2016-11-1415226145ND
2016-12-0515372191ND
2016-12-0515372212ND
2016-12-0515372233ND
2016-12-0515372254ND
2016-12-0515372275ND
2017-01-2315517780ND
2017-01-2315517801ND
2017-01-2315517822ND
2017-01-2315517843ND
2017-02-2215655939ND
2017-02-2315656023ND
2017-02-2315656044ND
2017-02-2315655960ND
2017-02-2315655981ND
2017-02-2315656002ND
2017-02-2315656065ND
2017-03-2215796085ND
2017-03-2215796112ND
2017-03-2215796139ND
2017-03-2215796166ND
2017-03-2215796193ND
2017-04-1715937477ND
2017-04-1715937498ND
2017-04-1715937540ND
2017-04-1715937519ND
2017-05-1516094572ND
2017-05-1516094593ND
2017-05-1516094656ND
2017-05-1516094614ND
2017-05-1516094635ND
2017-07-0516413113ND
2017-07-0516413134ND
2017-07-0516413155ND
2017-07-1716413710ND
2017-07-1716413731ND
2017-07-1716413752ND
2017-07-1716413773ND
2017-08-0216566170ND
2017-08-0216566191ND
2017-08-0216566065ND
2017-08-0216566086ND
2017-08-0216566149ND
2017-08-0216566107ND
2017-08-0216566128ND
2017-09-1116726750ND
2017-09-1116726777ND
2017-09-1116726804ND
2017-09-1116726831ND
2017-09-1116726858ND
2017-10-1616880081ND
2017-10-1616880102ND
2017-10-1616880144ND
2017-10-1616880123ND
2017-11-0117023337ND
2017-11-0117023358ND
2017-11-0117023421ND
2017-11-0117023379ND
2017-11-0117023400ND
2017-12-0417161959ND
2017-12-0417161980ND
2017-12-0417162022ND
2017-12-0417162043ND
2017-12-0417162001ND
2017-12-0417162064ND
2018-01-2220180293ND
2018-01-2220180294ND
2018-01-2220180295ND
2018-01-2220180296ND
2018-02-0520180455ND
2018-02-0520180456ND
2018-02-0520180452ND
2018-02-0520180453ND
2018-02-0520180454ND
2018-02-0520180457ND
2018-03-2020181073ND
2018-03-2020181074ND
2018-03-2020181075ND
2018-03-2020181076ND
2018-04-1620181445ND
2018-04-1620181446ND
2018-04-1620181448ND
2018-04-1620181447ND
2018-05-0220181740ND
2018-05-0220181741ND
2018-05-0220181744ND
2018-05-0220181742ND
2018-05-0220181743ND
2018-06-1820182322ND
2018-06-1820182324ND
2018-06-1820182325ND
2018-06-1820182323ND
2018-06-1820182326ND
2018-06-1820182327ND
2018-07-1620182699ND
2018-07-1620182700ND
2018-07-1620182701ND
2018-08-0120182922ND
2018-08-0120182923ND
2018-08-0120182920ND
2018-08-0120182921ND
2018-08-0120182924ND
2018-09-0520183429ND
2018-09-0520183431ND
2018-09-0520183430ND
2018-09-0520183432ND
2018-10-1520183924ND
2018-10-1520183926ND
2018-10-1520183925ND
2018-12-038121626-01ND
2018-12-038121626-03ND
2018-12-038121626-02ND
2018-12-108122542-01ND
2019-01-2120190220ND
2019-02-0420190410ND
2019-02-0420190411ND
2019-02-0420190409ND
2019-02-0420190412ND
2019-02-0720190528ND
2019-03-0420190828ND
2019-03-0420190829ND
2019-03-0420190830ND
2019-04-1720191516ND
2019-04-1720191518ND
2019-04-1720191517ND
2019-05-0220191674ND
2019-05-0220191675ND
2019-05-0220191678ND
2019-05-0220191676ND
2019-05-0220191677ND
2019-07-1520192723ND
2019-07-1520192724ND
2019-07-1520192727ND
2019-07-1520192728ND
2019-07-1520192725ND
2019-07-1520192726ND
2019-08-0520192977ND
2019-08-0520192978ND
2019-08-0520192976ND
2019-08-0520192979ND
2019-09-0420193493ND
2019-09-0420193494ND
2019-09-0420193495ND
2019-09-0420193496ND
2019-10-2120194146ND
2019-10-2120194147ND
2019-10-2120194148ND
2019-11-0420194264ND
2019-11-0420194265ND
2019-11-0420194267ND
2019-11-0420194266ND
2019-11-0420194268ND
2019-11-0420194269ND
2019-12-0220194693ND
2019-12-0220194694ND
2019-12-0220194696ND
2019-12-0220194697ND
2019-12-0220194695ND