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Last modified
8/16/2009 3:10:30 PM
Creation date
10/4/2006 7:08:34 AM
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Board Meetings
Board Meeting Date
1/27/2004
Description
ISF Section - Instream Flow Appropriations - Little Cochetopa Creek
Board Meetings - Doc Type
Memo
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<br />Table 2 shows that the summer flow recommendation of 2.25 cfs is available at least 50% of the <br />time from April through August. Table 2 also shows that the winter flow recommendation of <br />1.45 cfs is available at least 50% of the time from September through March. <br /> <br />Precipitation Data <br />Staff reviewed a local precipitation data set from Salida, CO (see Precipitation Data in Appendix <br />C). Table 3 shows the water year and the percent of average precipitation recorded at this site. <br /> <br />Table 3: Precipitation Data as a percentage of Average. <br /> <br /> Elevation - 7050 <br /> Lat 38 32 00 <br /> Long 106 00 00 <br />Year Salida <br />1911 149% <br />1912 115% <br />1913 139% <br />1914 122% <br />1915 147% <br />1916 ? <br />1917 63% <br />1918 106% <br />Avera~e 120% <br /> <br />It is staffs opinion that the 8 years of stream-flow data analyzed is representative of slightly <br />above average water-years. <br /> <br />Existing Water Right Information <br /> <br />Staff has analyzed the water rights tabulation and consulted with the Division Engineer Office <br />(DEO) to identifY any potential water availability problems. There are three decreed surface <br />diversions within this reach of stream (Murphy, Friend and Berg Ditches). According to the <br />DEO, senior downstream diversions should call enough water through the reach to satisfy the <br />recommended instream flow amount. Based on this analysis staff has determined that water is <br />available for appropriation on Little Cochetopa Creek, between its headwaters and the <br />confluence with Spruce Creek, to preserve the natural environment to a reasonable degree <br />without limiting or foreclosing the exercise of valid existing water rights. <br /> <br />- 5 - <br />
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