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Table 6-17 UPCO Recommendations on Fish Flows <br />1 <br />River Segment Minimum Optimum Comments <br />2 <br />Blue River Below Dillon Reservoir 75 cfs(5/1 -9/30) 100 cfs Exceptions include releases in the range of 55 <br />55 cfs(10/1 -4/30) to 125 cfsshould not increase more than <br />15percent over a 24-hour period; above <br />125cfs, changes in releases should track with <br />the rate of change in the inflow hydrograph for <br />the reservoir. <br />Blue River Below Green 60 cfs(5/1 -7/15) NA Exceptions include above 140 cfs, changes in <br />Mountain Reservoir 140 cfs(7/16 -9/30) releases should track with the rate of change in <br />100 cfs(10/1 -4/30) the inflow hydrograph for the reservoir. <br />Colorado Below Windy Gap, 125 cfs 200 cfs Other recommended flows include 125 cfs <br />River and above Williams minimum and 200 cfsoptimum at Hot Sulphur <br />Fork Springs for juvenile and adult brown trout. <br />Recommended rainbow trout optimum flows at <br />Hot SulphurSprings are as follows: <br />300 cfs4/20 -6/15 <br />125 cfs6/15 -7/15 <br />175 cfs7/15 -10/15 <br />200 cfsyear-round for adults <br />This may be useful relative to Whirling disease. <br />Temperature in this stretch is a serious issue. <br />Fraser River Below Vasquez Creek 9 cfs 12.5 cfs NA <br />Colorado Below Granby 30 cfs 45 cfs NA <br />River Reservoir <br />Williams Fork Below Williams Fork 50 cfs 200 cfs Maximum flow is 450 cfs <br />29 <br />River Reservoir <br />Table 6-18 UPCO Recommendations on Reservoir Levels* <br />Reservoir Location Minimum Optimum Comments <br />Dillon Reservoir Frisco Marina 9,012 feet 9,017 feet with Season is Memorial Day through <br />elevation 9,012 feet at the October 15 <br />from June to end of September <br />September <br />Grand Lake and Both 8,368 feet Maximum 1 foot Season is year-round. <br />Shadow Mountain waterbodies elevation fluctuation in <br />Reservoir elevation is <br />permissible <br />(8,368 to 8,369) <br />Granby Reservoir Entire NA NA Reservoir depth of 221 feet, with <br />waterbody fluctuations up to 94 feet permissible. <br />Wolford Mountain Reservoir NA NA Reservoir is operated to fill by mid-May <br />Reservoir and tailwaters (timed to match Cameo Peak). Boating <br />activities begin about Memorial Day. <br />Full pool elevation is 7,489 feet ASL. <br />On reservoir fishing year-round, no <br />operational impacts. Downstream <br />fishing occurs, which may be impacted <br />by reservoir releases. <br />* Reference: UPCO Report on Reservoir Levels (Draft for Discussion), July 25, 2001. <br />30 <br />15 <br />