Record Display for the EPA National Library Catalog

RECORD NUMBER: 45 OF 69

OLS Field Name OLS Field Data
Main Title Predicting contaminant migration in karst aquifers /
Author Field, Malcolm S.
CORP Author Environmental Protection Agency, Washington, DC. National Center for Environmental Assessment.
Publisher National Center for Environmental Assessment, Environmental Protection Agency,
Year Published 1996
Report Number EPA/600/A-96/012; NCEA-W-0068; PB96-159462
Stock Number PB96-159462
Subjects Hydrology, Karst. ; Groundwater--Pollution. ; Groundwater flow.
Additional Subjects Karst hydrology ; Water pollution detection ; Environmental transport ; Path of pollutants ; Dispersion ; Tracer techniques ; Aquifers ; Subsurface drainage ; Groundwater movement ; Base flow ; Drainage effects ; Travel time ; Hydraulic condictivity ; Numerical analysis ; Computerized simulation ; Mathematical models ; Reprints
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB96-159462 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 12 pages : illustrations ; 28 cm
Abstract
Time-of-travel transport estimation is employed to predict contaminant migration in karst aquifers. Estimation of time-of-travel transport is conditioned on the set of hydraulic-flow that occur within karst conduits. These parameters are applied to surface-water models to reflect time-of-travel flow and geometries are determined empirically through quantitative ground-water tracing studies. Quantitative ground-water tracing studies are based on a comprehensive tracer budget and numerical analysis of the tracer recovery curves for time-of-travel parameters that include mean residence time, mean flow velocity, longitudinal dispersivity, karst conduit volume, cross-sectional area, diameter, and hydraulic depth for use in surface-water models.
Notes
"Jun 96." Includes bibliographical references (page 11). Microfiche.