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<br />. <br /> <br />0112 <br /> <br />5. State line requirements under ~rkansas River Com- <br /> <br />pnct would be delivored first from Granada Reservoir <br /> <br />in ordor to vacate Granada Resorvoir for storage of summer <br /> <br />floods and to obtain credit in John Martin Reservoir, <br /> <br />Results of Operatien Studies <br />Operation of Grnnada Reservoir within the criteria and assumptions <br /> <br />used for this study would give the following results for a water suppJy <br />period such as 1921~l9501 <br /> <br />. <br /> <br />Replacement for maximUlll Trinidad Reservoir Project.. 2,400 no-.ft <br />Increased irrigation use below John Martin Reservoir. 19~1OO aa-ft <br />Replacement of evaporation losses from permanent <br />fish pool in John Martin 11l3servoir. . . . . . . .. 800 ac-ft <br />Granada Reservoir evaporation~. . . . . . . . . . . 4,300 ac-ft <br />Increased unusable John Martin l~servoir spill. . .. 400 ac-ft <br />Total storable water (average annual). . . . . . 27,000 ac-ft <br />y includes 900 acre-foet evaporation frem permanent fish <br />pool in Granada Reservoir. <br /> <br />Table 2 is the operation study of Granada Reservoir for the period <br /> <br />1921-1950. <br /> <br />Depletions caused Qy Granada Reservoir <br />Operation of the Granada Roservoir would result in some depletion <br /> <br />of Arkansas River flolVs by reason of increased use of water. The total <br /> <br />average annual depletion would equal the water diverted to storage in <br /> <br />Granada ReserVOir minus the return flOlVs from th~ increased irrigation <br /> <br />use" The depletion would be from unusable state lin8 f:.cws such as <br /> <br />flood flows and Winter irrigation return flOlVs and would not deplete <br />the present usable supply. The depletions would be greatest in years <br />having large fleod flows and least during dry years. No attempt has <br /> <br />. <br /> <br />-25- <br /> <br />