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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Portales 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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND30ND
2014ND20ND
2015ND10ND
2016N/A00N/A
2017ND20ND

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
2012-09-112012032645ND
2012-10-302012038985ND
2013-03-041303393-001AND
2013-09-051309246-001AND
2013-10-021310236-001AND
2014-07-171407893-001AND
2014-07-171407894-001AND
2015-10-141510845-001AND
2017-06-062017016935ND
2017-06-062017016936ND