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<br />TASK NO.: 4 <br />RFP CROSS-REFERENCE: <br />Step I, Item (3) <br /> <br />STAFF MEMBERS RESPONSIBLE: <br />Dam Evaluation'Specialist <br />System Operation Studies SpeciaJist <br /> <br />TASK TITLE: , <br /> <br />Estimate of Water Available ~or Storage in New Project Res~rvoir. <br /> <br />RATioNALE: <br /> <br />Hydrologic and operating analyses of the existing Surface Creek basin is <br />required to determine .the gross water supplies available for diversion- and <br />storage at the Cactus Park Reservoir site, or more suitable alternative <br />reservoir site, utilizing the GMWCD conditional water rights under the <br />predicted future conditions of operation in the Surface Creek basin. <br /> <br />METHODOLOGY: <br /> <br />1. Perform documents research and map studies at a reconnaissance level to <br />identify potential reservoir sites as suitable alternates. to the proposed <br />Cactus Park Reservoir site. <br /> <br />2. Determine preliminary potential limiting capacity at each site, and select <br />those sltes,.if any, which appear adequate for further investigations. <br /> <br />3. Perform limited field investigations of selected sites by observation of <br />topography and surficial geology. . <br /> <br />4. Select most feasible reservoir site or sites based on results of Steps 1 through <br />3 above and the decreed points of diversion of the GMWCD conditional direct <br />diversion rights. <br /> <br />5. Modify the basin simulation model developed in Sub-Task 2.11 and operate to <br />determine the gross inflows storable at the selected reservoir site{s) both <br />with and without the proposed enlargement of Fruitgrowers Reservoir. <br /> <br />PRODUCTS: <br /> <br />I. Lo<;ation' and potential capacities of potential storage reservoir sites in the <br />Surface Creek basin. <br /> <br />2. Tabulation of gross inflow available' for storage at the selected reservoir <br />sit"e(s) under the predicted future operation of the Surface Creek ,basin <br />without enlargement of Fruitgrowers Reservoir. <br /> <br />3. Tabulation of gross inflow available for storage at the selected reservoir <br />site(s) under the predicted future operatio~ of the Surface Creek basin with <br />enlargement of Fruitgrowers Reservoir. . <br /> <br />11-11 <br /> <br />i <br /> <br />/ <br />