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EWG's Tap Water Database — 2019 UPDATE

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trans-1,2-Dichloroethylene

Dalton Utilities

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2012-05-23AH65295ND
2012-05-23AH65294ND
2013-06-03AI02683ND
2013-06-03AI02682ND
2014-05-13AI40410ND
2014-05-13AI40409ND
2015-03-31AI69893ND
2015-03-31AI69892ND
2015-03-31AI69891ND
2016-05-10AJ11900ND
2016-05-10AJ11899ND
2016-05-10AJ11898ND
2017-06-19AJ57840ND
2017-06-19AJ57839ND
2017-06-19AJ57838ND