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EWG's Tap Water Database — 2019 UPDATE

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trans-1,2-Dichloroethylene

Wilk-amite W/a #1-south

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.

 

13

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
2013ND20ND
2014ND30ND
2015ND10ND
2016ND30ND
2017ND40ND

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
2013-07-30130731-013VOND
2013-10-22131023-005VOND
2014-01-21140122-014VOND
2014-04-17140418-005VOND
2014-07-24140725-001VOND
2015-07-08150709-001VOND
2016-02-23160224-006VOND
2016-04-12160413-007VOND
2016-11-03161104-001VOND
2017-03-22170323-001VOND
2017-05-16170517-011VOND
2017-08-21170822-014VOND
2017-11-16171120-001VOND