ABSTRACT
A methodology is presented to determine the most appropriate level of aquifer restoration program involving several considerations and constraints. It is illustrated through a biobjective optimization model that utilizes the finite difference method to discretize the partial differential equations governing the flow and contaminant transport processes and the nonlinear programming techniques for its solution. Tradeoff between total pumping representing a surrogate of the remediation system cost and cleanup standard is examined. The methodology allows comprehensive interaction with the decision makers for obtaining information on ordinal preferences and allowable trade that is utilized in arriving at the best compromise level of aquifer restoration.
