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Modeling tools to Account for Ethanol Impacts on BTEX Plumes
Citation:
WEAVER, J. W., J. T. WILSON, R. C. EARLE, AND A. AHSANUZZAMAN. Modeling tools to Account for Ethanol Impacts on BTEX Plumes. Presented at 2011 EPA Region 3 LUST Technical Workshop, Rehoboth Beach, DE, September 28 - 30, 2011.
Impact/Purpose:
Presentation for the 2011 EPA Region 3 LUST Tehcnical Workshop at Rehoboth Beach, DE (September 28, 2011 - September 30, 2011)
Description:
Widespread usage of ethanol in gasoline leads to impacts at leak sites which differ from those of non-ethanol gasolines. The presentation reviews current research results on the distribution of gasoline and ethanol, biodegradation, phase separation and cosolvancy. Model results from the EPA FOOTPRINT code are shown and the model described. Extensions to the model are motivated by the limitations in the solution technique and a path forward is explained. Preliminary results from simulations of Loudoun County Virginia are presented. These show small amounts of plume elongation where ethanol is present.