Menu

EWG's Tap Water Database

Donate

trans-1,2-Dichloroethylene

Boone County PWSD 9

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012ND40ND
2013N/A00N/A
2014N/A00N/A
2015ND50ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 60 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)100 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2012-02-07AB66759ND
2012-02-07AB66761ND
2012-02-08AB66758ND
2012-02-08AB66760ND
2015-02-18AC42745ND
2015-02-18AC42741ND
2015-02-18AC42742ND
2015-02-18AC42743ND
2015-02-18AC42744ND