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<br />J <br />t:, <br />j 0 <br /><:) <br />" <br /> (T.l <br />j (JI <br />0) <br />"1 <br />-] <br />] <br />J <br />M] <br />..,-' <br />51 <br />] <br />J <br />1 <br />'1 <br /> I <br />.. <br />" <br /> ~ <br />...;:' <br /> , <br />oj <br /> <br />Similarly, the alternative conveyance routes were evaluated to determine the more favorable <br /> <br />route for future consideration. No environmental factors were discovered which would preclude <br /> <br />further consideration of the conveyance routes. <br /> <br />Reservoir Sites Eliminated <br />Three reservoir sites were eliminated based on the findings of the initial screening and one <br />site location wllS modified. <br /> <br />The Haypark Site was eliminated due to the small potential reservoir yield. Preliminary <br /> <br /> <br />hydrologic analysis estimated a potential yield in the range of 10,000 to 12,000 af/yr. <br /> <br />The Lower Piney Site was eliminated because of the high potential for reservoir seepage due <br /> <br />to the existence of permeable lenses within the bedrock in the reservoir area and aUhe dam axis. <br /> <br />The Iron Mountain Site was also eliminated due to potential reservoir seepage. The <br /> <br />Homestake Shear Zone could allow significant seepage through the ridge to the adjacent Eagle River <br /> <br />canyon. <br /> <br />;,' <br /> <br />The Wolford Mountain Site A location was modified due to questions about the stability of the <br /> <br /> <br />right abutment. Site A', 3800 feet upstream, was substituted for Site A. These geotechnical <br /> <br />questions are not a concern at Site A'. <br /> <br />Reservoir Sites Selected <br /> <br /> <br />The following reservoir sites were selected for further analysis: Red Mountain, Wolford <br /> <br /> <br />Mountain A', Wolford Mountain C, Azure, Wolcott (both higher and lower dams) and Una. Table 2.1 <br /> <br /> <br />presents the reservoir sites and capacities designated for reconnaissance-level evaluation. The <br /> <br /> <br />minimum pool shown represents the lowest reservoir content after all usable water is released. It <br /> <br />was based on either the assumed structural minimum (such as the elevation of the inlet to the outlet <br /> <br /> <br />works) or the allowance reserved for sediment accumulation. <br /> <br />2-5 <br />