PREDICTING CONTAMINANT MIGRATION IN KARST AQUIFERS

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Abstract

Time-of-travel transport estimation is employed to predict contaminant migration in karst aquifers. stimation of time-of-travel transport is conditioned on the set of hydraulic-flow and geometric parameters that describe different transport processes that occur within karst conduits. hese parameters are applied to surface-water models to reflect time-of-travel flow and transport through conduits. arameters used in the models to describe flow and geometries are determined empirically through quantitative ground-water tracing studies. uantitative ground-water tracing studies are based on a comprehensive tracer budget and numerical analysis of the tracer recovery curve. ORTRAN computer code is used to evaluate 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.

Citation

Field, M. PREDICTING CONTAMINANT MIGRATION IN KARST AQUIFERS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-96/012 (NTIS PB96159462).

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Additional Information

Presented at 3rd International Symposium on Environmental Geotechnology, June 10-12, 1996

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