Record Display for the EPA National Library Catalog
RECORD NUMBER: 303 OF 460Main Title | Predicting contaminant migration in karst aquifers / | |||||||||||
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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 | |||||||||||
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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. |
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Notes | "Jun 96." Includes bibliographical references (page 11). Microfiche. |