he Lower Rio Grande Valley (LRGV) is experiencing a developmental change due to its strategic location and economic ties with the US-Mexico borderland. These changes induce an increase in population and thereby a rise in the solid waste generation. This research aims at preparing a strategic plan by providing an optimal waste distribution pattern that minimizes the overall cost involved in managing the landfill space in the Valley. Regionalization issues in the solid waste management (SWM) of the Valley are considered in the planning process. The region will spend about...