An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

EPA's Study of Hydraulic Fracturing and Its Potential Impact on Drinking Water Resources

Rapid liquid chromatography–tandem mass spectrometry-based method for the analysis of alcohol ethoxylates and alkylphenol ethoxylates in environmental samples

Patrick DeArmond and Amanda DiGoregorio. Journal of Chromatography A. August 2013.


Alcohol ethoxylates and alkylphenol ethoxylates are a class of surfactants that are common components of household and industrial detergents. They have also been reportedly used in hydraulic fracturing fluids. The EPA has developed an analytical method for the rapid determination and quantification of 152 chemically-related compounds in drinking water, surface water, and ground water as part of its study of the potential impact of hydraulic fracturing for oil and gas on drinking water resources. This work was done as part of EPA's Study of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.