Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Hydrocarbon spill exposure assessment modeling /
Author Weaver, James W. ; Charbeneau, R. J.
Other Authors
Author Title of a Work
Charbeneau, Randall J.
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Texas Univ. at Austin. Center for Research in Water Resources.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Laboratory,
Year Published 1991
Report Number EPA/600/D-91/002
Stock Number PB91-162669
Additional Subjects Potable water ; Oil spills ; Chemical spills ; Hydrocarbons ; Water pollution ; Mathematical models ; Water supply ; Exposure ; Environmental transport ; Ground water ; Environmental impact assessments ; Water table ; Aquifers ; Vadose water ; Subsurface investigations ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB91-162669 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 19 pages : illustrations ; 28 cm
Hydrocarbon spills impact drinking water supplies at down gradient locations. Conventional finite difference and finite element models of multiphase, multicomponent flow have extreme requirements for both computer time and site data. Site 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. A time record of concentration can be determined for any desired location in the aquifer. The presentation outlines the methodology and examines parameter sensitivity within the combined vadose zone, oil lens, and aquifer transport models.
Includes bibliographical references. "EPA 600/D-91/002." Microfiche.