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I I I I I I I I I I I I I I I I I I I existing watcr need or shortage". The proposed purchasc by the District is to provide an adequate v.'ater supply for the eventual buildout of the District. The assets to be acquired are to provide water only within the District" s existing service area. About 75 percent of the residential properties in the District have completed homes v.ith buildout expected to occur in about 20 years or sooner. All future development has been planed and almost all the necessary improvements are in place to provide service for full buildout. The proposed purchase presents the District with a unique opportunity to acquire assets that are already decreed for District use and provide a reliable supply of water for the future. In effect. the District is replacing the existing Vidler lease with the assets to be purchased. Physical Supply System The District's physical water supply system utilizes shallow wells to dcvelop alluvial ground water sources in the Soda Creek drainage. \\'hich is located upstream of Dillon Rescrvoir. as shown in Figures I and 2. Senior water rights were changed in Case No. \\'-2110 to allow diversions at the shallow wells. Vidler Wells lthrough 10 (Soda Creek wells). Historically, the District has operated the physical water supply system in accordance with the 1983 agreement with Vidler. whieh provided the water rights to support the ground water diversions and water uses within the District. These and other water rights needcd to support the existing watcr requin:ments ofthc District me described in greater detail in the following report section. As mentioned above. the District develops its water supply from ground water \....e1ls. located in the Soda Creek alluvium. The wells arc approximately 50 to 70 feet deep. with well yields ranging from approximately 30 to 280 gallons per minute (gpm). The estimated combined yield of the wells is approximately 1035 gpm. A summary of detailed well infomlation is presented in Table I. The District has conducted studies of these physical water supplies. constmcted ne\,," facilities. and has instituted planning steps for developing supplemental sources. if needed. to meet physical water demands in the future. The annual yield of the basin appears to be adequate to meet the existing and projected demand. although additional wells or other means of maximizing. the use of available yield may be desired. The projected water demand and consumptive use of water at build-out are approximately 617 and 56.1 acre-feet per year. respecti\'ely (SBG. 1998). We prepared another -5- I BI.,'J,..p.RfIlpk'll_h""-l/Ilt'<.llIf