ABSTRACT
An area of interest within the field of subsurface transport and fate processes receiving much attention is the area of modeling. Ironically, modeling of subsurface transport and fate processes is truly in its infancy. Early ground water models focused on determining head distributions and flow patterns in aquifer systems. The first ground water quality models focused on solute transport, including the effects of advection and dispersion of non-reactive contaminants. Recently, modeling efforts have focused on incorporating the effects of other subsurface processes including adsorption and biological reactions. Currently, much interest is being shown in developing models for depicting the behavior of multiple phase flow systems involving aqueous and non-aqueous phases in the subsurface. This chapter presents an overview of ground water modeling processes and how the effects of subsurface transport and fate processes can be incorporated into the models. Ground water modeling can encompass several different aspects of the behavior of subterranean water systems.
