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Fig. 7. Simulation of ground water flow lines associated with (a) the riparian zone of a small creek with an unconfined aquifer present and (b) modified flow lines with a high-hydraulic-conductivity (K) wood medium reactor present connecting the creek and the underlying aquifer sediments. Left and right boundary conditions are constant head (1.0- and 0.975-m head, respectively); top and bottom boundaries are zero flux, except for the creek, which has a constant head of 0.98 m. Each stream tube (area between adjacent flow lines) carries an equal amount of ground water flux. The model reflects field conditions observed at the Caddy-Bott Creek site.
