A Ground Water Modeling Effort to Simulate the Results of An Aquifer Restoration Schemeby Kristine Uhlman, Harza Environmental Services Inc, United States,
Abstract: A ground water model using the IBM PC version of the USGS MODFLOW code was constructed to simulate the ground water flow beneath an industrial site in the central Midwest. A detailed three-dimensional model of the glacial outwash sand and underlying confining clay till layer and outwash aquifer was constructed and calibrated using historical data. The model accurately simulated the water level elevations generated after one year of pumping. An aquifer restoration scheme was designed, and seven pump-out wells were constructed on site. Pumpage rates and contaminant concentrations were monitored, and these data were incorporated in the transport model. The contaminant plume was then simulated using the IBM PC version of the USGS-2D-TRANSPORT-MOC code. The transient effect of the one-year pump-out scheme was then simulated. Using both MODFLOW and MOC, alternative pump-out schemes and affects of increased pumping were simulated; groundwater elevations and contaminant concentrations were predicted.
Subject Headings: Hydrologic models | Aquifers | Simulation models | Pumps | Computer models | Ecological restoration | Groundwater | Flow simulation | Data processing | Groundwater flow | Mid-West states
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