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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

North Penn Water Authority

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

 

298

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.190 ppb514ND - 3.60 ppb
20150.337 ppb475ND - 3.96 ppb
20160.225 ppb604ND - 4.06 ppb
2017ND550ND
2018ND440ND
2019ND410ND

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
2014-01-2020140222ND
2014-01-2020140223ND
2014-01-2020140224ND
2014-01-2020140225ND
2014-02-1220140545ND
2014-02-1220140546ND
2014-02-1220140542ND
2014-02-1220140543ND
2014-02-1220140544ND
2014-02-12201405472.07 ppb
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
2014-05-19201417011.18 ppb
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
2014-08-18201428292.85 ppb
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
2014-11-1014110622-0043.60 ppb
2014-12-0820144185ND
2014-12-0820144186ND
2014-12-0820144188ND
2014-12-0820144189ND
2014-12-0820144187ND
2015-01-1912287148ND
2015-01-1912287169ND
2015-01-1912287190ND
2015-01-1912287211ND
2015-02-0912402095ND
2015-02-0912402116ND
2015-02-0912402032ND
2015-02-0912402053ND
2015-02-0912402074ND
2015-02-09124021373.96 ppb
2015-04-2012633453ND
2015-04-2012633474ND
2015-04-2012633516ND
2015-04-2012633495ND
2015-06-15128829672.90 ppb
2015-07-1313013062ND
2015-07-1313013088ND
2015-07-1313013114ND
2015-07-1313013140ND
2015-07-1313013166ND
2015-08-1713135663ND
2015-08-1713135684ND
2015-08-1713135726ND
2015-08-1713135747ND
2015-08-1713135705ND
2015-08-17131357682.63 ppb
2015-09-1413264705ND
2015-09-1413264731ND
2015-09-1413264757ND
2015-10-0513389209ND
2015-10-0513389230ND
2015-10-0513389272ND
2015-10-0513389251ND
2015-11-1113514200ND
2015-11-1113514137ND
2015-11-1113514158ND
2015-11-1113514179ND
2015-11-1113514221ND
2015-12-0213633341ND
2015-12-0213633367ND
2015-12-0213633393ND
2015-12-0213633419ND
2015-12-0213633445ND
2015-12-02136334713.14 ppb
2015-12-0913633497ND
2015-12-0913633297ND
2015-12-14136333183.20 ppb
2016-01-1813753160ND
2016-01-1813753181ND
2016-01-1813753202ND
2016-01-1813753223ND
2016-02-1713870697ND
2016-02-1713870718ND
2016-02-1713870634ND
2016-02-1713870655ND
2016-02-1713870676ND
2016-02-17138707392.56 ppb
2016-03-0213986048ND
2016-03-0213986074ND
2016-03-0213986100ND
2016-03-0213986126ND
2016-03-0213986152ND
2016-04-1814102965ND
2016-04-1814102986ND
2016-04-1814103028ND
2016-04-1814103007ND
2016-05-1614250800ND
2016-05-1614250821ND
2016-05-1614250842ND
2016-05-16142508633.30 ppb
2016-06-0614405885ND
2016-06-0614405912ND
2016-06-0614405966ND
2016-06-0614405993ND
2016-06-0614405939ND
2016-07-1814569946ND
2016-07-1814569967ND
2016-07-1814569988ND
2016-07-1814570009ND
2016-08-0114735666ND
2016-08-0114735687ND
2016-08-0114735603ND
2016-08-0114735624ND
2016-08-0114735645ND
2016-08-01147357083.59 ppb
2016-08-2314907947ND
2016-09-0714908074ND
2016-09-0714908101ND
2016-09-0714908128ND
2016-09-0714908155ND
2016-09-0714908182ND
2016-10-2415075723ND
2016-10-2415075744ND
2016-10-2415075786ND
2016-10-2415075765ND
2016-11-1415226160ND
2016-11-1415226076ND
2016-11-1415226097ND
2016-11-1415226202ND
2016-11-1415226118ND
2016-11-1415226181ND
2016-11-14152261394.06 ppb
2016-12-0515372185ND
2016-12-0515372206ND
2016-12-0515372227ND
2016-12-0515372248ND
2016-12-0515372269ND
2017-01-2315517774ND
2017-01-2315517795ND
2017-01-2315517816ND
2017-01-2315517837ND
2017-02-2215655933ND
2017-02-2315656017ND
2017-02-2315656038ND
2017-02-2315655954ND
2017-02-2315655975ND
2017-02-2315655996ND
2017-03-2215796079ND
2017-03-2215796106ND
2017-03-2215796133ND
2017-03-2215796160ND
2017-03-2215796187ND
2017-04-1715937471ND
2017-04-1715937492ND
2017-04-1715937534ND
2017-04-1715937513ND
2017-05-1516094566ND
2017-05-1516094587ND
2017-05-1516094650ND
2017-05-1516094608ND
2017-07-0516413107ND
2017-07-0516413128ND
2017-07-0516413149ND
2017-07-1716413704ND
2017-07-1716413725ND
2017-07-1716413746ND
2017-07-1716413767ND
2017-08-0216566164ND
2017-08-0216566185ND
2017-08-0216566059ND
2017-08-0216566080ND
2017-08-0216566143ND
2017-08-0216566101ND
2017-09-1116726744ND
2017-09-1116726771ND
2017-09-1116726798ND
2017-09-1116726825ND
2017-09-1116726852ND
2017-10-1616880075ND
2017-10-1616880096ND
2017-10-1616880138ND
2017-10-1616880117ND
2017-11-0117023331ND
2017-11-0117023352ND
2017-11-0117023415ND
2017-11-0117023373ND
2017-12-0417161953ND
2017-12-0417161974ND
2017-12-0417162016ND
2017-12-0417162037ND
2017-12-0417161995ND
2017-12-0417162058ND
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
2018-03-2020181073ND
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
2018-06-1820182322ND
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
2018-09-0520183429ND
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
2019-01-2120190220ND
2019-02-0420190410ND
2019-02-0420190411ND
2019-02-0420190409ND
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
2019-07-1520192723ND
2019-07-1520192724ND
2019-07-1520192727ND
2019-07-1520192728ND
2019-07-1520192725ND
2019-07-1520192726ND
2019-08-0520192977ND
2019-08-0520192978ND
2019-08-0520192976ND
2019-09-0420193493ND
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
2019-12-0220194693ND
2019-12-0220194694ND
2019-12-0220194696ND
2019-12-0220194697ND
2019-12-0220194695ND