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<br />estimated to cost $3 million or more. Othe'" drawl.lacKs to a Carter Lilke <br />diversion stem from thl.! obvious rt'oblems and concerns which would arise from <br />boring through the embilnkment of such a large lake. <br /> <br />One of the 1'1 atiron Rl.!servo i r divers ions would l.le very s imi I a.- to the Carter <br /> <br /> <br />Lake tar. It l'iould consist of a bore through the dam. The estimilted cost for <br /> <br />this is $2 milliun. Because FlatirOn is such a small reservoir, the 16 foot <br /> <br />fluctuation in water level would require placement of the intake structure far <br /> <br /> <br />into the reservoir. <br /> <br />The second point of diversion investigated at Flatiron Reservoir would utilize <br /> <br />an existir.g outlet structure thus eliminating the need for boring the darn. <br /> <br /> <br />The outlet transfers water under the Flatiron Dam and into Hansen Canal. A <br /> <br /> <br />short Gistance dovmstream, the l'later flows into Cottom-lOod Siphon in ol'der to <br /> <br /> <br />pass Ul'der a road. The diversion could be made by tapping the Siphon. The <br /> <br />estimated cost of this tap is $250,000 which includes thz diversion structure, <br /> <br /> <br />excavation and backfill, pipe, remote control sensing equipment and the cost <br /> <br />of an investigation by the Bureau of Reclamation. The estimated maximum amount <br /> <br />of water IIhich could be diverted through this tap is 65 r~GD Which \'/ould l.le <br /> <br /> <br />suffici~nt through the year 1993 for the proposed total system. After the <br /> <br /> <br />capacity of the Siphon has been .'eached, additional const..uction v/ould be <br /> <br /> <br />necessary in order to provide iln adequate supply of rilW water. The tap 011 the <br /> <br /> <br />Sirhon would insure a supply of water anyt ime there is water in the Canal. <br /> <br />H0\1ever, during timES of low reservoir levels, water docs not reilch theoutlet <br /> <br />structure ilnd the Canill is dry. <br /> <br />This pro:llC'111 is easily solved l.leciluse there is a pipeline running hetY/een <br />Cilrter La\e and Flatiron Reservoir. The level on Flatiron could be maintained <br />by allovtin~ water tograviLy feed from Carter. <br /> <br />12 <br />