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EWG's Tap Water Database — 2019 UPDATE

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trans-1,2-Dichloroethylene

Wauconda

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND60ND
2015ND10ND
2016ND20ND
2017ND60ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 60 ppb

The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for trans-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
2012-01-252013103-01ND
2012-07-172072672-01ND
2012-10-242103656-01ND
2013-01-153012368-03ND
2013-01-153012368-02ND
2013-04-033040890-01ND
2014-02-254023383-02ND
2014-02-254023380-02ND
2014-02-254023380-01ND
2014-02-254023383-01ND
2014-02-264023409-01ND
2014-05-194053316-01ND
2015-05-205053337-01ND
2016-01-126012057-01ND
2016-04-256044283-01ND
2017-02-077021652-02ND
2017-02-077021683-01ND
2017-02-077021683-02ND
2017-02-077021657-02ND
2017-02-207023460-01ND
2017-05-237053991-01ND