Security Issues in Drinking Water Distribution Networks

This paper formulates the security problem of sensor placement in water distribution networks for contaminant detection. An initial attempt to develop a problem formulation is presented, suitable for mathematical analysis and design. Multiple risk-related objectives are minimized in order to compute the Pareto front of a set of possible solutions; the considered objectives are the contamination impact average, worst-case and worst-cases average. A multiobjective optimization methodology suitable for considering more that one objective function is examined and solved using a multiple-objective evolutionary algorithm.