Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

cis-1,2-Dichloroethylene

Londonderry Court Mobile Home Park

NOTE: Londonderry Court Mobile Home Park purchases water from Chester Water Authority which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by Chester 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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND30ND
2016ND40ND
2017ND40ND
2018ND30ND
2019ND10ND

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

NOTE: Londonderry Court Mobile Home Park purchases water from Chester Water Authority which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by Chester Water Authority.

Date Lab ID Result
2014-01-141402243ND
2014-04-0914042012-001ND
2014-07-0914071080-001ND
2014-09-301438033ND
2015-01-0912284622ND
2015-04-0612630640ND
2015-07-0813010231ND
2015-10-0713386897ND
2016-01-0713750379ND
2016-04-0714100341ND
2016-07-0714567340ND
2016-10-0715073207ND
2017-01-1015514889ND
2017-04-1115934402ND
2017-07-0716410446ND
2017-10-1116877393ND
2018-01-092287664001ND
2018-05-158012319-01ND
2018-07-128020049-01ND
2019-07-103044796001ND