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<br />
<br />e
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<br />e
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<br />
<br />cfs (October 15 - April 14) and 0,75 cfs (April 15 - May 14), Table 3 below shows how often
<br />the new flow recommendations are available at the downstream terminus in orange shading,
<br />
<br />Table 3 : 011 Creek at confluence with Founnlle Creek
<br />
<br />1%
<br />5%
<br />10%
<br />20%
<br />50%
<br />80%
<br />90%
<br />95%
<br />99%
<br />
<br />Janua"" Februa..... March .a....ril Mav June Julv Aunust SAntember October November December
<br />,~ !21_ O,IIO'J!f .,;0:691" """aS7""- .."'11.73.... ....S:lS.' ~~14' ""~'3.84- "'-2.44 """4.08::' ':4,09 : "":"T.'18f -."
<br />W-.:'o.93;t.:;; O.72~ "fQ:57ft >- --3.09:,' ,10,05 ',7,88 , 4,43 2.37 1,80 1.49 ' 1.36 0,118 ~:
<br />:-)(t77"",,"" '~";;:Q:6t.i/!t. ';"O.51't"- "2.<42 . '8.lXF :ij:t'6.38 - 4,09 2.03 ' 1.39 1,39 0,93 0,88"
<br />::- ~(IS7,r'''' !"-;.~o.45t::' ',.:O,49V 1;29. ..5.8lJ... 4,99 2.37 1,60 .-.1.24.... 1,08 0.88 0:57111
<br />.....0:33"'" L~ ,0:31<ill:: ,0.41 ~, ,;:0.77.11 1,62 ",,2.47.. ""-,,D.88>iL ..,.0.77.fit 0.72 ",- 0.77. 0,44 ~i,.~' Q.33 ,J;;:
<br /> 0,26 0,21 '" 0.30.11< 0,50 0,72 0,82 0,62 0,51 0,47 0,47 0,38 0,28
<br /> 0,23 0,20 0,25 0,48 0.47 0,48 0,50 0,25 0,26 0,35 0,34 0,26
<br /> 0,21 0,19 0.24 0.42 0,34 0,40 0,39 0,21 0,23 0,28 O.31....o:w. 0,24
<br /> 0.18 0,18 0,22 0,38 0,27 0.37 0,29 0.14 0.21 0,22 0,28 0,19
<br />
<br />Precipitation Data
<br />Staff reviewed local precipitation data sets from 4 different sites located around the Oil Creek
<br />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,
<br />
<br />Table 4: Precinitation Data as a nercenta!!e of Avera!!e,
<br />Water Year Guffy Canon Citv Lake Georjl;e 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%
<br />
<br />Table 4 shows the wide variation 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 instream flow amounts was made, Figure 4 below shows the Fourmile Creek
<br />stream flow for the 1992-1997 time period,
<br />
<br />Figure 4:
<br />
<br />Four.d.l.e Creek Be.lou Cr.ippJ.e Creek Near Victor. Co
<br />SLaL.ion Nuftber: 0709G250
<br />
<br />'"
<br />b
<br />
<br />400.0
<br />350.0
<br />300.0
<br />250.0
<br />200.0
<br />150.0
<br />100.0
<br />50.0
<br />0.0
<br />
<br />
<br />"
<br />-
<br />
<br />.
<br />"
<br />~
<br />..
<br />~
<br />1i
<br />-
<br />co
<br />
<br />1993
<br />
<br />1994
<br />
<br />1995
<br />
<br />1996
<br />
<br />1997
<br />
<br />Legend: ------- Discharge. in CFS
<br />------- Es:tift~ed Oischarve. in CFS
<br />
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