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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Aqua Pennsylvania Main System

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

 

182

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
20140.0182 ppb331ND - 0.600 ppb
20150.0135 ppb371ND - 0.500 ppb
2016ND350ND
2017ND310ND
2018ND210ND
2019ND250ND

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
2014-01-06AE19666ND
2014-01-08AE19654ND
2014-01-08AE19653ND
2014-01-09AE19808ND
2014-01-09AE19814ND
2014-02-05AE22406ND
2014-02-06AE22395ND
2014-02-06AE22429ND
2014-02-19AE24127ND
2014-02-19AE24128ND
2014-02-19AE24152ND
2014-02-26AE23735ND
2014-04-14AE29526ND
2014-04-15AE29528ND
2014-04-15AE29507ND
2014-04-23AE29939ND
2014-04-23AE29914ND
2014-04-23AE29839ND
2014-04-23AE29840ND
2014-04-23AE29916ND
2014-04-24AE29947ND
2014-04-24AE29952ND
2014-07-21AE41025ND
2014-07-23AE41635ND
2014-07-23AE40895ND
2014-07-24AE40881ND
2014-07-24AE40886ND
2014-10-22AE53545ND
2014-10-22AE53537ND
2014-10-23AE53645ND
2014-10-23AE536460.600 ppb
2014-12-11AE59777ND
2014-12-29AE61209ND
2015-01-0512290028ND
2015-01-0712289934ND
2015-01-0712290055ND
2015-01-0712290077ND
2015-01-0712290097ND
2015-01-0812289972ND
2015-01-08122899820.500 ppb
2015-01-2212289913ND
2015-01-2312290006ND
2015-02-0312405390ND
2015-02-0312405516ND
2015-02-0412405348ND
2015-02-0412405369ND
2015-02-0412405411ND
2015-02-0412405432ND
2015-02-0412405453ND
2015-02-0412405474ND
2015-02-0412405495ND
2015-04-0612636849ND
2015-04-2212636870ND
2015-04-2312636807ND
2015-04-2912636828ND
2015-06-0312885156ND
2015-06-0412885135ND
2015-07-2013016800ND
2015-07-2213016566ND
2015-07-2213016587ND
2015-07-2313016524ND
2015-07-2313016545ND
2015-08-0513138438ND
2015-09-3013267553ND
2015-10-2113392014ND
2015-10-2213391951ND
2015-10-2213391972ND
2015-10-2213391993ND
2015-11-0213516752ND
2015-11-2313517507ND
2016-01-0613756191ND
2016-01-0613756212ND
2016-01-0613756296ND
2016-01-1113756149ND
2016-01-2013756128ND
2016-01-2013756170ND
2016-01-2113756065ND
2016-01-2113756086ND
2016-01-2113756107ND
2016-01-2813756233ND
2016-01-2813756254ND
2016-01-2813756275ND
2016-02-0513872904ND
2016-02-1013872925ND
2016-03-0313989318ND
2016-03-1513989360ND
2016-03-1713989339ND
2016-03-1813989381ND
2016-04-1114107120ND
2016-04-1114107141ND
2016-04-1114107162ND
2016-04-1114107204ND
2016-04-1114107225ND
2016-04-1414107183ND
2016-07-2914573681ND
2016-08-0214739160ND
2016-08-0414739112ND
2016-08-0414739127ND
2016-08-0414739152ND
2016-10-2415079379ND
2016-10-2415079400ND
2016-10-2415079421ND
2016-11-0715229335ND
2016-11-2115229356ND
2016-12-0115229900ND
2017-01-0315521163ND
2017-01-1615521205ND
2017-01-1815521100ND
2017-01-1815521121ND
2017-01-1815521184ND
2017-01-2415521142ND
2017-03-2815800252ND
2017-03-2915800273ND
2017-04-0315942270ND
2017-04-1215942312ND
2017-04-1715942207ND
2017-04-1715942228ND
2017-04-1915942249ND
2017-04-1915942291ND
2017-06-1916262172ND
2017-06-2016262193ND
2017-06-2016262214ND
2017-06-2116262235ND
2017-08-0716571170ND
2017-09-1516730762ND
2017-09-1816730783ND
2017-09-1816731933ND
2017-09-1916730720ND
2017-09-1916730741ND
2017-09-1916731849ND
2017-09-2016731870ND
2017-09-2016731891ND
2017-09-2016731912ND
2017-09-2716883573ND
2017-12-2017165308ND
2017-12-2117165336ND
2018-01-17AF74387ND
2018-01-29AF74797ND
2018-01-29AF74445ND
2018-01-29AF74447ND
2018-01-29AF74446ND
2018-01-29AF74448ND
2018-01-31AF74434ND
2018-01-31AF74435ND
2018-01-31AF74433ND
2018-01-31AF74431ND
2018-01-31AF74442ND
2018-01-31AF74441ND
2018-02-22AF74432ND
2018-02-26AF77278ND
2018-02-27AF77311ND
2018-02-27AF76921ND
2018-02-28AF77455ND
2018-02-28AF77456ND
2018-02-28AF77467ND
2018-03-26AF79915ND
2018-11-16AG01115ND
2019-01-28AG07059ND
2019-01-29AG07266ND
2019-03-04AG10320ND
2019-03-04AG10261ND
2019-03-06AG10532ND
2019-03-06AG10533ND
2019-03-06AG10552ND
2019-03-11AG10450ND
2019-03-13AG10482ND
2019-03-19AG10263ND
2019-03-19AG10265ND
2019-03-19AG10264ND
2019-03-26AG12576ND
2019-04-08AG13312ND
2019-04-08AG13600ND
2019-04-10AG12918ND
2019-04-24AG14544ND
2019-04-24AG14546ND
2019-05-06AG16471ND
2019-05-07AG16502ND
2019-05-30AG18878ND
2019-06-19AG20510ND
2019-10-16AG35352ND
2019-10-18AG36414ND
2019-10-23AG36111ND