Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

trans-1,2-Dichloroethylene

Los Angeles County WW District 40 Reg 38 Lake Los Angeles

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.

 

10

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
2015ND20ND
2016ND20ND
2017N/A00N/A

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
2012-06-055442-008-0830ND
2012-09-065442-003-1016ND
2013-06-185442-003-0848ND
2013-06-185442-008-0901ND
2014-06-175442-003-1117ND
2014-06-175442-008-1108ND
2015-06-225442-003-0915ND
2015-06-225442-008-0915ND
2016-05-125442-003-1055ND
2016-05-125442-008-0950ND