Agenda - 10-14-2014 - 4 - Laserfiche WebLink

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25 Triangle Regional Water Supply Plan — Executive Summary Table 2. JLP Recommended Alternative Water Supplies (MGD). W. Fork Eno Expansion Purchase from Town of Mebane Quarry Reservoir Expansion euse Reservoir Expansion 1J Haw Purchase 0.5 -2.5 Haw Quarry Expansion 2.1 Haw River - Increased Haw River Withdrawal 4.0 Withdrawal New Reservoir; Reallocation of Falls Exploring 4 options; Neuse Lake Storage; Neuse 41.1 must develop 3 River Withdrawal; Quarry Cape Fear River - In Withdrawal Can Downstream Communities Meet 2060 Needs under the TRWSP? Yes. The JLP used DWR's combined hydrologic model of the Neuse and Cape Fear River Basins to simulate 2060 water demands, including the JLP Recommended Alternative, under the entire 80+ year range of hydrologic conditions and historic droughts. The results indicate that the long term water supply needs of the Partners, as well as those of downstream water users, can be met under the TRWSP. A preliminary modeling analysis by DWR, as they work toward development of a Cape Fear Basin Water Supply Plan, confirmed these results. What Could Affect the Success of the TRWSP? The TRWSP conclusion that the Triangle Region will have enough water to meet projected water demands through 2060 hinges on the accuracy of many assumptions, on Jordan Lake water supply allocations consistent with Table 1, and on each Partner implementing its water supply projects. The JLP Recommended Alternative will require implementation of many complex projects, with numerous regulatory and environmental challenges. Key uncertainties include: • Rate of population growth; • Adoption of water efficiency and conservation practices including reclaimed water use; • Water quality policies, environmental permits, endangered species impacts, environmental justice concerns or evolving regulations, especially as they relate to the development of new water supply sources; • Legislative and /or regulatory actions regarding competing water uses; and 11