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• <br />acre-feet per year by 2016- (SWEC, 1986a). This amount would <br />supply a population increase of approximately 1,000 people. <br />2.05 In addition, the proposed Sandstone Dam and Reservoir would <br />provide a small amount of flood protection to downstream <br />residents and property. Although the proposed- Sandstone Dam and <br />Reservoir would not be operated specifically for flood control <br />purposes, it would reduce Savery Creek's 100-year flood peaks by <br />about 400 cubic feet per second (cfs) (~5 percent) and the <br />probable maximum flood (PMF) peak by about 5;900 cfs (14 percent) <br />(SWEC, 1986a). A potential hydroelectric generating station at <br />the proposed Sandstone Dam would add to the economic development <br />of the Little Snake River basin. It is estimated that <br />installation of one 1,810-kilowatt (kW) unit and one 280-kW unit <br />would provide year round power generation for use by a local <br />power utility. <br />PUBLIC PURPOSE AND NEED <br />2.06 Pursuant to Section 404 of the Clean Water Act, the WWDC <br />has applied to the U.S. Army Corps of Engineers for a permit to <br />discharge dredged or fill material into waters of the United <br />States (Savery Creek). As part of the permitting process, the <br />proposal must undergo a review to demonstrate that the project is <br />not contrary to the public interest. <br />2.07 This Draft Environmental Impact Statement (EIS) has been <br />written to describe the action ,proposed by the WWDC, alternatives <br />to that action, and impacts of each of the alternatives to that <br />action. The impact discussion, including cumulative impacts, <br />• <br />2-3 <br />