Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

trans-1,2-Dichloroethylene

Claflin, City of

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013N/A00N/A
2014N/A00N/A
2015ND30ND
2016ND60ND
2017ND20ND

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
2012-10-09586370VFND
2012-10-09586371VFND
2012-10-09586369VFND
2015-10-13419868ND
2015-10-13419866ND
2015-10-13419867ND
2016-02-08490667ND
2016-02-08490668ND
2016-05-10544822ND
2016-05-10544823ND
2016-08-16604703ND
2016-08-16604705ND
2017-09-25847634ND
2017-09-25847633ND