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<br />,. <br /> Table 3: E. Fk. Parachute Ck upstream of First Anvil Creek <br />Ex n anu F M r h A ril M J I Au t lem r r Nvm r 0 m r <br />e , <br />1 % 0,7 ,91 2.1 .24 .7 1. 1.21 .97 .7 <br /> 20% 0,60 0.73 1.61 14.52 76.66 16.94 3.71 1.66 1,13 0.97 0.89 0.73 <br /> 50% 0,50 0.56 0.81 4.76 31.87 5.89 ' 2,10 1.21 0.81 0.79 0.74 0,52 <br /> 5% 0.31 0.48 .7 0,81 0,14 0.06 .17 0, ,32 .1 <br /> <br />Tables 2 and 3 show that the summer flow recommendation of 2.4 cfs is available 50% of the <br />time April through June, 20% of the time in July and 5% of the time in August throughout the <br />entire reach. Tables 2 and 3 also show that the winter recommendation of 2.1 cfs is not <br />available. Based on the above water availability analysis and the requirement of the CWCB staff <br />to balance the needs of mankind with a reasonable preservation of the natural environment the <br />recommended summer and winter flows of 2.4 cfs and 2.1 cfs were reduced further. Staff <br />recommends that the proposed flow recommendation be changed to 2.4 cfs eApril15 - June 30), <br />1.2 cfs (July 1 - August 31), 0.5 cfs (September 1 - March 14) and 0.8 cfs eMarch 15 - April <br />14). Tables 4 and 5 below show how often the new flow recommendations are available at the <br />upstream and downstream terminus in orange shading. <br /> <br />Table 4: E. Fk. Parachute Ck downstream of Second Anvil Creek <br /> <br />e <br /> <br />. <br /> <br />20% <br />50% <br /> <br />0.41 <br />0,35 <br /> <br />O.5L <br />0.39 <br /> <br />1.12 <br />0.56 <br /> <br />10.06 <br />3.30 <br /> <br />53.07 <br />22.lr7 <br /> <br />11.73 <br />4.08 <br /> <br />2.57 <br />1.45 <br /> <br />1.28 0,78 <br />0,84 ' 0.56 <br /> <br />0.67 <br />0.55 <br /> <br />0.61 0.51 _ <br />0.51 _ 0.36 <br /> <br />. <br /> <br />Table 5: E. Fk. Parachute Ck upstream of First Anvil Creek <br /> <br />20% <br />50% <br /> <br />0.60 <br />0.50 <br /> <br />0.73 <br />0.56 <br /> <br />1.61 <br />0.81 <br /> <br />14.52 <br />4.76 <br /> <br />76.66 <br />31.87 <br /> <br />16.94 <br />5.89 <br /> <br />3.71 <br />2.10 <br /> <br />1.86 <br />121 <br /> <br />1.13 <br />0.81 <br /> <br />0.f11 <br />0.79 <br /> <br />0.89 <br />0.74 <br /> <br />0.73 <br />0.52 <br /> <br />Precipitation Data <br /> <br />Staff reviewed local precipitation data sets from 4 different sites located around the JQS Gulch <br />Drainage esee Precipitation Data in Appendix C). These sites include Rangely, Rifle, Collbran <br />and Meeker (See Figure 3). Table 6 shows the water year and the percent of average <br />precipitation recorded at each site. <br /> <br />e <br />