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5359 Cherry Creek. Approximately 15% of water treated will require advanced wastewater treatment prior to discharge. ) Table A-S - Planned Well Capacity (GPM) Aqnifer Flow Capacity Alluvial 700 Dawson 50 Denver 50 Arapahoe 350 Laramie Fox Hills 150 Figure A.I illustrates the conceptual water resource plan for ACWW A that has been used to develop future pumping files for the regional groundwater model. Available sources of water are prioritized to meet the demand schedule in the following order. I. Arapahoe fonnation water within the district service area with an upper limit of 11 ]2.7 acre- feet per year. Thcn Laramie Fox Hills fonnation water from within the service area is developed with an upper limit of 747 acre-feet per year. 2. Return flows from treated effluent and lawn return flows are used at a rate of 40% of the nontributary groundwater pumped up to a maximum of2500 acre-feet per year in 2015 and 3100 acre-feet per year in year 2025. While each successive use of reusable return flow generates a furthcr 40% of that subsequent reuse, it is assumed that an 85% efficiency rate will account for timing and other miscellaneous losses in subsequent reuse opportunities. For this evaluation, it is therefore assumed that each unit of non tributary groundwater pumped wi II generate a 40% reusable return flow amount. 3. Senior surface water rights up to a maximum of 327 acre-feet per year are used. 4. All unmet demands are met by nontributary groundwater imported from beyond the district boundaries. Return flows are used to offset the total amount of imported nontributary groundwater up to the limits of the nonpotable reuse system as identified in #2 above. ) This water resources strategy assumes that full use is made of decreed Arapahoe and Laramie Fox Hills nontributary groundwater under the district service area and that the maximum use is made of return flows in the planned non potable reuse system. J