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<br />For this segment of stream. one data set was collected with the results shown in Table 1 helow.
<br />Table I shows who collected the data (Party). the date the data was collected (Date). the
<br />measured discharge at the time of the survey (Q). the accuracy range of predicted flows based on
<br />,\-lanning's Equation (240% and 40% of Q). the sununer flow recommendation based upon
<br />meeting 3 of 3 hydraulic criteria and the winter flow recommendation based upon 2 of 3
<br />hydraulic criteria.
<br />
<br />Table I: Data
<br />
<br />Part\-' Dale Q 250%-..aO% Summer (3/3) Winlcr (2/3)
<br />BLM 7/6/98 1.98 5,0,0,8 1.9 1.5
<br />
<br />RLM = Bur~u of Land Mana~('mt"nl (I) Predicled fl"", Olllsid" uf IIII' accuracy ran!!e nf Manning' < Equaluln
<br />~ = Cmeria nner melln R1CROSS S13,l!lng TaM\'_
<br />
<br />Biologic Flow Recommendations
<br />The BLM recommended a 2.0. 1.5 and 1.0 cfs summer flow and a 0.8 cfs winter tlow based on
<br />their July 61h. 1998. data collection effort and waler availability analysis. CWCB staff has
<br />reviev.'ed the data collected by the BUvt. The summer flow recommendation. which meets 3 of 3
<br />criteria and is within the accuracy range of the R2CROSS model. is 1.9 ds. The winter 110\1,'
<br />recommendation. which meets 2 of 3 criteria and is within the accuracy of the R2CROSS model.
<br />is 1.5ds.
<br />
<br />Hydrologic Data
<br />
<br />After receiving the cooperating agencies' biologic recommendation. the CWCB staff conducted
<br />an evaluation of the stream hydrology to determine if water was physically available for an
<br />instream flow appropriation. The hydrograph was derived from data collected by the USGS
<br />stream gage for East Fork Parachute Creek near Anvil Points (lD #090(2960). which has a
<br />drainage area of 14.5 square miles (see Gage Summary in Appendix C). The period of record for
<br />this gage is 1976 to 1983. the period of record used by staff in their analysis was 1976-1983. or
<br />seven years of record. The estimated drainage area of East Fork Parachute Creek upstream of
<br />JQS and Golden Castle Gulch is approximately 3.1 square miles. The drainage area upstream of
<br />Second Anvil Creek is 6.3 square miles. Table 2 nclow displays the estimated flow of JQS
<br />Gulch at the confluence with Golden Castle Gulch. in terms of a percentage of exceedence. The
<br />blue shading highlights how often the summer and winter flow recommendations have been
<br />available.
<br />
<br />Tabel2: E. Fk Parad1ute Ck al conll. WIJClS Gulch & Golden Castle Gulch
<br />
<br />E~ooeaences Januarv Febroarv March A" M" '"~ Julv AuOJSl s.rn~"., October November Deoamber
<br />'0. '30 '" 0_74 , 13.9EI" ~'60_03- 50_65- h"3:1r".1 ,,, 065 059 '" '"
<br />" '" 028 062 1037 38.37 14.11 1.69 '" 0_49 ''" ", 021
<br />,,.. '20 '" '58 7.91 ",00 7_48 1_37 0.72 ", 0.32 '" 021
<br />20% 0_16 '" "3 385 20_31 449 I 0,98 0.49 0_30 '" '" '"
<br />50"'0 0.13 '" 0,21 ,,, '''' '56 '56 0,32 0.21 021 '" '"
<br />'O'. 009 ,n 017 '" 06' '30 '20 '" 007 '" 0.14 0,10
<br />goo, ,OS ,OS 0,15 024 '" '" "... '"' ,os ,OS 010 ,OS
<br />95% ''" ''" 013 '20 021 0_07 ",. 0.02 "'. 0.07 '09 ''"
<br />99"'. 0.07 '"' 011 '" 019 '"' '03 0.02 "'. ''" '09 ''"
<br />
<br />Table 3: E, Fk. Parachute Ck upstream 01 Seoood AnVil Creel<
<br />
<br />E~ceedenees JatlUa Febtua"l March 'Po' M,o '"~ '"' A" . S. ~"., October November Decembel
<br />,% 0.61 '" '50 28.37 122:00 102.93 '''' ',56 I '" '20 ,n 048
<br />500 '56 '56 ", 21_07 73.91 28_68 3'" 2-00,~ '00 '82 '58 043
<br />10"'. 0.41 '" 1_17 16.08 52.83 15.21 2]8 , " 083 '65 '52 0,43
<br />20". '32 ''" '87 '82 41_28 912 '00 I '00 '" '52 048 '"
<br />50"'0 0.27 '30 '" ',56 17_16 3,17 "3 0.65 "3 0" '" 028
<br />,"'- '" 023 035 '" , 30 061 '" 021 '" 03' 028 '"
<br />",.. 'n '" '30 ", 055 0,27 '09 0.14 ,n 0.17 '20 0.17
<br />95% 0,17 ,n '" DaD '" 015 '"' 003 0_09 014 ,n 017
<br />"" '" '" 0.22 035 ''" '" 005 '03 00' '" 0.17 '"
<br />
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