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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Waukee Water Supply

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.

 

1

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013ND60ND
2014ND50ND
20150.500 ppb110.500 ppb
20160.367 ppb63ND - 0.900 ppb
20170.140 ppb51ND - 0.700 ppb

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
2015-11-12OE3167670.500 ppb