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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

City of Port Angeles

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-07-1731433ND
2014-11-2052142ND
2015-03-3113518ND
2016-09-14ND
2016-10-06ND
2017-02-15ND
2017-05-10ND
2017-08-02ND