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EWG's Tap Water Database — 2019 UPDATE

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trans-1,2-Dichloroethylene

Jordan Valley Water Conservancy District

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND40ND
2014ND30ND
2015ND60ND
2016ND40ND
2017ND100ND

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 Result
2012-06-27ND
2012-07-18ND
2013-01-09ND
2013-06-26ND
2013-10-29ND
2013-10-29ND
2014-01-02ND
2014-06-04ND
2014-06-04ND
2015-01-13ND
2015-01-15ND
2015-02-18ND
2015-02-18ND
2015-07-07ND
2015-07-21ND
2016-02-16ND
2016-03-22ND
2016-03-22ND
2016-07-14ND
2017-01-03ND
2017-01-03ND
2017-01-03ND
2017-01-03ND
2017-01-03ND
2017-01-04ND
2017-01-04ND
2017-01-04ND
2017-01-23ND
2017-08-14ND