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<br />. <br /> <br />e <br /> <br />. <br /> <br />Og12~1 <br /> <br />Reservoir Effects: <br /> <br />In addition to irrigation depletions, another aspect to be <br />checked would be reservoir effects considered in deriving virgin <br />flow estimates for the base station (Gunnison River at Crystal Dam). <br />Bank storage effects are computed as a constant percent~e <br />(10 percent) of Blue Hesa monthly change in storage, In high <br />storage and release months, this can result in a significant <br />adjustment, Actual bank storage and release patterns and quantities <br />may be different, <br />Reservoir evaporation is accounted for by using constant <br />monthly evaporation rates multiplied by reservoir area, No <br />consideration is made for fluctuation in monthly evaporation rates <br />on a year-to-year basis. <br /> <br />Miscellaneous: <br /> <br />In addition to the above considerations, several other <br />adjustments to the virgin flow estimates for the Gunnison River at <br />Crystal Dam virgin flow estimates, though minor, should be taken <br />into account, These include: <br />1, An approximate 8,000 acre-foot increase to 1955 <br />irrigation depletions (see Appendix B), <br />2, Consideration of Crystal Reservoir storage effects from <br />1977 through 1983, <br />3, Verification that Cimarron Canal diversions from the <br />Cimarron River have been considered, <br /> <br />Incorporating these changes would involve a considerable amount of work, <br /> <br />The resulting degree of improvement in flow estimates is not presently known, <br /> <br />38 <br />