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HYDROCARBON SPILL EXPOSURE ASSESSMENT MODELING
Citation:
Weaver, J. AND R. Charbeneau. HYDROCARBON SPILL EXPOSURE ASSESSMENT MODELING. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-91/002 (NTIS PB91162669), 1991.
Description:
Hydrocarbon spills impact drinking water supplies at down gradient locations. onventional finite difference and finite element models of multiphase, multicomponent flow have extreme requirements for both computer time and site data. ite data and the intent of the modeling often do not warrant the application of such models. An alternative approach is proposed which is based on semi-analytic models for vertical product infiltration, radial spreading on the water table, and transport of aqueous phase contaminants in the aquifer. Three individual models for these processes are linked to estimate exposure at a down gradient well. ime record of concentration can be determined for any desired location in the aquifer. he presentation outlines the methodology and examines parameter sensitivity within the combined vadose zone, oil lens, and aquifer transport models.
