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f x Water Management Plan. The South County Surface Water Supply project is currently in construction and will begin the delivery of water in the summer of 2005. The South San Joaquin Irrigation District is providing water for the South County Water Supply project from the'Stanislaus River from which it holds Are-1914 water rights. The projected surface water delivery in 2005 is 9,054 acre-feet per year (8.1 mgd) and is scheduled to increase by 430 acre-feet per year (0.38 mgd) for the`next 22 years. The Surface Water Supply project will provide approximately 53 percent of the City's water demand. With the delivery of surface water to Manteca, groundwater pumping from existing groundwater wells will be reduced to the safe yield of the aquifer of 1 acre-ft per acre per year. Because of the reduction in groundwater pumping, groundwater from existing wells is not available for the annexation. Thus, new groundwater wells, in conjunction with future increases in surface water deliveries, will be required to provide water for the annexation as well as other developments. With the completion of Wells 24 and 25, the surface water supply project and the construction of Well 27 (Union Ranch) there will be an adequate supply of water for the annexation. Fees Fees for connection to the City water supply are assessed when connections within the annexation are.requested. The Fees consist of a Surface Water Fee, a Meter Installation Fee and a Water Capacity Charge. These fees provide the necessary funds to acquire, finance and deliver water to new customers. Upon connection to the City water system, the existing private wells would need to be destroyed or require the installation of an approved backflow prevention device on the water service connection. The installation and maintenance of the backflow device would be the responsibility of the property owner. Demand Estimate An estimate of the potential demand has been evaluated on the basis of 92 new connections. The demand estimate is based on a daily demand of 0.474 gpm per dwelling unit, a 2.8 peak hour factor and 15 percent redundancy for water supply reliability. The water demand presented by the annexation is summarized below and results in a small increase in the overall City demand. Airport Way/Yosemite Ave. Average Daily Peak Hour Demand GPM Annexation Demand GPM with 15% Redundancy 92 Residential Units 44 142 E-7