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<br />- <br /> <br />0008 <br /> <br />.. <br />~ . <br /> <br />. <br /> <br />Action ,would release 3,300 acre-feet from the reservoir, and the Preferred <br /> <br />Alternative would release 26,300 acre-feet. These releases would change <br /> <br /> <br />stream flows below the reservoir several months out of the year; none for the <br /> <br /> <br />No Action, because it currently exists, but for six months each year for the <br /> <br />Preferred Alternative. The water volume in Ruedi Reservoir on September 1 <br /> <br /> <br />would be 100,500 acre-feet for the No Action and 94,300 acre-feet for the <br /> <br /> <br />Preferred Alternative. Salinity in the Colorado River at the Cameo gage would <br /> <br /> <br />be increased 0.8 percent by the Preferred Alternative. <br /> <br /> <br />The changes in stream flows resulting with the Preferred Alternative <br /> <br /> <br />would create significant losses (greater than 10 percent) in available trout <br /> <br /> <br />habitat in downstream river reaches, ranging from four months each year in the <br /> <br /> <br />reach below Ruedi Dam, to one month each year in the Roaring Fork River below <br /> <br />the Crystal River confluence. Average drawdown of the water level in Ruedi <br /> <br /> <br />Reservoir during the July to September. period would be four feet with No <br /> <br /> <br />Action, and eight feet with the Preferred Alternative, which corresponds to a <br /> <br /> <br />surface acreage reduction of 22 and 37 acres, respectively. Little impact is <br /> <br />expected to current recreational use on the reservoir. The probability of <br /> <br /> <br />severe drawdown by September 1 (less than 52,000 acre-feet) is less than one <br /> <br />percent for the No Action and three percent for the Preferred Alternative. <br /> <br />. <br /> <br />. <br /> <br />vi <br />