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<br />Table 2: Estimated Foumlile Creek now upstream of Felch Creek.
<br />Execedences Januarv Februarv March April .\Iav
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<br />June
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<br />.lull' August Septemher October November Decemllel"
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<br />D E."m",d b.~d M . ,m,,"M ~,~" of "M,h . ''''mlocr "d ~m", ",,, ",h" "","i", '"' ..,,,,
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<br />50% 9.30 81\0 10.75 17.80 26.80 -HL~O 19.80 17.80 16.80 17.80 11040 9.30
<br />80% 7.90 6.90 8,60 12.60 )f).SO 18.80 14.80 12.80 11.90 11.90 10.10 8.30
<br />90% 7.30 6.70 7.70 11.70 11.85 12.10 12.55 7,65 7,80 9.55 9.40 7.90
<br />95% 6.80 6.50 7.4-7 11.05 9.43 10,60 10.45 6.90 7.30 8.27 8.80 7.50
<br />99% tdO 6,00 7,06 970 806 9.90 \ 8.45 5.61 6,95 7,06 8.30 6.58
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<br />Table J: Estimated Fourmile Creek now upstream o( Wilson Cfffk
<br />Exceedences Januar\" Febman" ~1arch April 'Ia\'
<br />
<br />June
<br />
<br />July August September October NOH'mber December
<br />
<br />.1
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<br />50% 9.30 8,80 7.73 ]2.40 15.00 17,90 I..UO 12...1.0 - - - 12.-\.0 12.-\.0 7.70 9.30
<br />80gr 7,90 6,90 6,60 9,30 10,00 12.30 10.00 9.30 7.70 9.30 6,60 8.30
<br />90st 7.30 6.70 5.60 7.70 7.70 9.:W 9.30 5.60 5.60 6,60 6.60 7,90
<br />95'1 6.80 6.50 5.60 7,70 660 7.70 7.70 ~.60 5.60 5.60 6,60 7.50
<br />99'10 6.30 6,00 ~,60 6,60 5.60 6.60 6.60 .t60 -L60 ~.60 6,60 6.58
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<br />E~tunalc:d ba-.ed uo a irn!,:anno .....~~(lO (ll :<.brch . :,\'o'c:ml:ll:'r and -.enior w~ler righlS are calling (or wal~
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<br />Tables 2 and 3 show that the winter recommendation of 5.0 cfs (October 15'h - April14lh) is
<br />available at least 95% of the time throughout the entire reach. Tables 2 and 3 also show that the
<br />summer flow recommendation of 9.5 cfs (April 151h - October 14'h) is available 50% of the time
<br />in April, August, September and October and 80% of the time May through July through out the
<br />entire reach.
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<br />Precipitation Data
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<br />Staff reviewed local precipitation data sets from 4 different sites located around the Fourmile
<br />Creek Drainage (see Precipitation Data in Appendix C), These sites include Guffy (1951-1997).
<br />Canon City (1931-1997), Lake George (1948-97) and Ruxton Park. (1959-1997) (See Figure 3).
<br />Table 4 shows the water year and the percent of average precipitation recorded at each site.
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<br />a e reclpltatlon ata as a percent a eo verage,
<br /> Water Year Guffy Canon City Lake George Ruxton Park
<br /> 1992-93 86% 94% 70% 88%
<br /> 1993-94 148% No Data 100% 129%
<br /> 1994-95 139% No Data 114% 133%
<br /> 1995-96 108% , 115% 74% 95%
<br /> 1996-97 103% 165% 74% 169%
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<br />Table 4 shows the wide vanatlon of precipitation between four relatively close precipItation
<br />sites, the 1992-93 water-year was below average at all four sites. the 1994-95 water-year was
<br />above average for three sites and the 1995-96 water-year was above average for two sites and
<br />below average for two sites. It is staffs opinion that the five years of stream-flow data analyzed
<br />is representative of average to slightly above average water-years. However, because the
<br />requested flow amounts were exceeded at least 80% of the time. no adjustment to the
<br />recommended in stream now amounts was made. Figure 4 below shows the Fourmile Creek
<br />stream flow for the 1992-1997 time period.
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