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EWG's Tap Water Database — 2021 UPDATE

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trans-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

EWG Health Guideline 60 ppb

The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for trans-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
2015-01-1612286573ND
2015-01-1612286599ND
2015-01-1612286616ND
2015-03-0412514935ND
2015-03-0412514956ND
2015-03-0412514977ND
2015-03-0412514998ND
2015-03-0412515019ND
2015-03-0412515040ND
2015-03-0412515061ND
2015-03-0412515082ND
2015-03-0412515103ND
2015-04-1612632987ND
2015-04-1612633029ND
2015-04-1612633050ND
2015-04-2312633008ND
2015-07-1513012139ND
2015-07-1513012181ND
2015-07-1713012118ND
2015-07-1713012160ND
2015-10-1313388712ND
2015-10-1413388649ND
2015-10-1413388670ND
2015-10-1413388691ND
2016-01-1213752674ND
2016-01-1213752695ND
2016-01-1213752716ND
2016-02-1613869796ND
2016-03-1613985440ND
2016-03-1613985461ND
2016-03-1613985497ND
2016-03-1613985524ND
2016-03-1613985545ND
2016-03-1613985566ND
2016-03-1713985419ND
2016-03-1713985482ND
2016-04-2614102743ND
2016-05-1714250257ND
2016-05-1714250278ND
2016-05-1714250299ND
2016-07-1914569335ND
2016-07-1914569356ND
2016-07-1914569377ND
2016-10-2615075517ND
2016-10-2615075538ND
2016-10-2615075559ND
2017-01-0515517120ND
2017-01-0515517078ND
2017-01-2515517099ND
2017-02-1415655267ND
2017-02-1415655288ND
2017-02-1415655309ND
2017-02-1415655246ND
2017-03-3015795468ND
2017-04-0515936817ND
2017-04-0515936838ND
2017-04-0515936859ND
2017-04-1815936796ND
2017-08-0916565744ND
2017-08-1616565702ND
2017-08-1616565723ND
2017-10-1016880013ND
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