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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Espanola Water 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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND30ND
2015ND30ND
2016ND10ND
2017ND40ND

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
2012-12-192012044797ND
2013-11-202013039364ND
2014-09-102014028974ND
2014-09-102014028976ND
2014-09-102014028975ND
2015-06-242015018582ND
2015-08-122015023345ND
2015-12-012015035445ND
2016-03-222016008530ND
2017-05-092017014272ND
2017-05-092017014273ND
2017-07-252017021838ND
2017-07-252017021837ND