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The following provides a brief explanation of how the economic driver for reuse system expansion will influence the implementation strategy and regulatory structure presented in the Reuse Master Plan : (1 ) Water Supply as driver — if water supply is the limited resource that is driving the need for reuse expansion, land uses that use large quantities of irrigation water (farming, low density golf course communities, large industrial water users, etc) may be required to use reclaimed water to meet their consumptive use demands and thus will be required to install reuse infrastructure to connect to a backbone system developed by the County and financed through the water/wastewater/reuse rate structure. Pressures on water supply from urban and rural users will be identified to determine the balance between demands on the limited water supply, benefits provided by the various densities of development by using reuse for irrigation ; and costs of providing the infrastructure to realize those benefits . (2) Wastewater Treatment Capacity as driver — if wastewater treatment capacity is the limited resource that is driving the need for reuse system expansion, higher density developments that generate a greater demand for wastewater treatment capacity but a relatively low demand for reuse water due to limited green spaces may need to subsidize large reuse water users or the purchase of additional effluent disposal sites through their wastewater rates and/or provide reuse infrastructure on-site to help generate some of the additional wastewater treatment capacity necessary to serve their developments . Regardless of the economic driver, the goal of the Reclaimed Water System Implementation Plan will be an equitable reuse program that mitigates future water and wastewater system supply shortages and the growth and/or use restrictions that could result from those shortages. Subtask 4.3 — Alternative Approaches to Satisfying Institutional and Regulatory Requirements. The case studies in Subtask 4 . 1 will include an evaluation of the changes made to the Comprehensive Plans, LDRs and Reuse Ordinances in the Case Study jurisdictions to implement the proposed expansion of the reuse system . The degree to which new development approvals will be conditioned on the installation of reuse infrastructure in Indian River County will be addressed in this task. An evaluation will be made to determine if the Comprehensive Plan should be amended to include a Reuse Element or if the Water and Wastewater Sub-elements will need to be amended to reflect the necessity of expanded reuse to provide necessary reductions in consumptive water use and/or increases in wastewater disposal capacity to meet growth projections. The Future Land Use element may need to be amended to include the Reuse Service Areas as a land use overlay, and objectives and policies may need to be added to determine which land use categories will require reuse infrastructure to be provided as a condition of development approval . The Capital Improvements Element will eventually need to be amended to reflect the first 5 -year increment in the Reuse System Capital S:A041077.003VIRC Reclaimed Water System Implementation PlanAAttachment l .doc October 1 , 2005