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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I, <br />1\ <br /> <br />TASK NO.2 - HYDROLOGY <br /> <br />RATIONALE: <br /> <br />Based on USBR analysis of streamflows in the neighboring <br />Gunnison River Basin, a 3D-year study period consisting of <br />water years 1955 through 1984 has been tentatively selected. <br />A statistical analysis of recorded streamflow data will be <br />conducted to determine the adequacy of this period of record <br /> <br />and the 3D-year study period will be modified if advisable. <br /> <br />A correlation between gaging stations with incomplete <br /> <br /> <br />periods of record and those with full periods of record will <br /> <br /> <br />be developed. The historic streamflow gage record will then <br /> <br /> <br />be extended to a length equal to the selected period of <br /> <br /> <br />study. <br /> <br />Ii <br /> <br />Major recorded historic diversions and depletions will be <br /> <br />considered in adjusting the recorded flows to obtain virgin <br />flows. This will involve collecting and/or estimating <br />historic diversions from available data sources; estimating <br /> <br />the consumptive uses, locations and lag periods for return <br /> <br />flows; and adjusting the recorded streamflows to estimated <br /> <br />virgin flows for the periods of record. It will be assumed <br /> <br />that the smaller water rights are reflected in the historic <br />record and they will not be considered. Correlations <br />A-IS <br /> <br />I; <br />I <br />It <br />I <br />, <br />