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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Horsham Water&sewer 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

 

106

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND230ND
2015ND240ND
2016ND220ND
2017ND160ND
2018ND80ND
2019ND130ND

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
2014-01-09AE19948ND
2014-01-09AE19956ND
2014-01-09AE19959ND
2014-01-24AE21287ND
2014-02-19AE24091ND
2014-02-19AE24093ND
2014-02-19AE24094ND
2014-02-19AE24099ND
2014-02-19AE24100ND
2014-02-20AE24092ND
2014-04-16AE29642ND
2014-04-16AE29643ND
2014-04-16AE29635ND
2014-04-16AE29638ND
2014-04-16AE29639ND
2014-07-23AE41288ND
2014-07-23AE41289ND
2014-08-13AE43999ND
2014-08-13AE44001ND
2014-08-13AE44009ND
2014-10-08AE51808ND
2014-10-09AE51797ND
2014-10-09AE51805ND
2015-01-1612286567ND
2015-01-1612286602ND
2015-01-1612286624ND
2015-03-0412514928ND
2015-03-0412514949ND
2015-03-0412514970ND
2015-03-0412514991ND
2015-03-0412515012ND
2015-03-0412515033ND
2015-03-0412515054ND
2015-03-0412515075ND
2015-03-0412515096ND
2015-04-1612632980ND
2015-04-1612633022ND
2015-04-1612633043ND
2015-04-2312633001ND
2015-07-1513012132ND
2015-07-1513012174ND
2015-07-1713012111ND
2015-07-1713012153ND
2015-10-1313388705ND
2015-10-1413388642ND
2015-10-1413388663ND
2015-10-1413388684ND
2016-01-1213752667ND
2016-01-1213752688ND
2016-01-1213752709ND
2016-02-1613869789ND
2016-03-1613985433ND
2016-03-1613985454ND
2016-03-1613985511ND
2016-03-1613985517ND
2016-03-1613985538ND
2016-03-1613985559ND
2016-03-1713985412ND
2016-03-1713985475ND
2016-04-2614102736ND
2016-05-1714250250ND
2016-05-1714250271ND
2016-05-1714250292ND
2016-07-1914569328ND
2016-07-1914569349ND
2016-07-1914569370ND
2016-10-2615075510ND
2016-10-2615075531ND
2016-10-2615075552ND
2017-01-0515517113ND
2017-01-0515517071ND
2017-01-2515517092ND
2017-02-1415655260ND
2017-02-1415655281ND
2017-02-1415655302ND
2017-02-1415655239ND
2017-03-3015795461ND
2017-04-0515936810ND
2017-04-0515936831ND
2017-04-0515936852ND
2017-04-1815936789ND
2017-08-0916565737ND
2017-08-1616565695ND
2017-08-1616565716ND
2017-10-1016880006ND
2018-01-30AF74814ND
2018-01-30AF74813ND
2018-02-13AF75932ND
2018-03-23AF79016ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-10-03AF96985ND
2018-12-27AG04620ND
2019-02-11AG07771ND
2019-02-11AG07772ND
2019-02-11AG07773ND
2019-02-11AG07775ND
2019-02-27AG09179ND
2019-04-11AG13046ND
2019-04-11AG13047ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-08-21AG28299ND
2019-09-18AG31924ND
2019-09-18AG31925ND