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Last modified
8/16/2009 2:54:52 PM
Creation date
10/4/2006 6:45:17 AM
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Board Meetings
Board Meeting Date
1/25/2005
Description
ISF Section - Instream Flow Appropriations - North Fork Smith Fork
Board Meetings - Doc Type
Memo
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<br />Estimated Stream Flow on North Fork Smith Fork <br /> <br />20 <br /> <br />5 <br /> <br /> <br /> <br />15 <br /> <br />Ul <br />o 10 <br /> <br />o <br /> <br />jan <br /> <br />feb <br /> <br />mar <br /> <br />apr <br /> <br />may <br /> <br />jun jul <br /> <br />Month <br /> <br />aug <br /> <br />sep <br /> <br />oct <br /> <br />nov <br /> <br />dec <br /> <br />Table 2 shows that the summer flow recommendation of 6.8 cfs is available at least 50% of the <br />time for the month of Apri11 e' through July 31 et The winter flow recommendation of 3.5 cfs is <br />available at least 50% of the time from (August 1 e' - November 14th and February 15th - March <br />31e'). Based on water availability, the winter recommendation was further reduced to 3.0 cfs for <br />the time period of November 15th - February 14th. <br /> <br />Precipitation Data <br />Staff reviewed a local precipitation data set from 1 site located around the Smith Fork Gunnison <br />Drainage (see Precipitation Data in Appendix C). Table 3 shows the water year and the percent <br />of average precipitation recorded at each site. It is staff's opinion that the 60 years of stream- <br />flow data analyzed is representative of slightly below average water-years. <br /> <br />Table 3: Precipitation Data as a percentage of Average <br /> <br /> Elevation = 5690 <br /> Lat 38 5200 <br /> Long 107 35 00 <br />Year Paonia 1SW <br />1957 50% <br />1958 88% <br />1959 87% <br />1960 86% <br />1961 108% <br />1962 103% <br />1963 102% <br />1964 115% <br />1965 136% <br />1966 89% <br />1967 91% <br />1968 100% <br /> <br />- 5 - <br />
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