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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 />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Inflow calculated by this method would be relatively accurate and <br />would incorporate evaporation and seepage losses. Monthly inflow for <br />the years prior to 1964 was estimated through use of the flow records <br />from the USGS gage and analysis of the inflow pattern from 1964 <br />through 1986. <br /> <br />The annual inflow into Continental reservoir averaged approxima- <br />tely 20,500 acre-feet with a peak of 32,800 acre-feet. <br /> <br />c. Rio Grande Reservoir Inflow <br /> <br />Inflow to the Rio Grande reservoir was necessary to complete the <br />multiple reservoir operation study which accurately reflected activi- <br />ties within the upper Rio Grande basin. Inflow for the period 1956 <br />through 1979 was obtained from "Rio Grande Dam Rehabilitation <br />Feasibility Report" prepared by W. W. Wheeler & Associates, Inc., <br />November, 1981. (25). <br /> <br />In the W. W. Wheeler report storage records were available for the <br />period 1969 through 1980 and gage records for the entire study period. <br />They state "Monthly inflow from 1950 through 1968 was estimated <br />through use of the USGS gage records and analys is of the i nfl ow pa t- <br />tern from 1970 through 1979" (25). Using similar methodology, the <br />i nfl ow records of Ri 0 Grande reservoi r were compl eted for the study <br />period 1956-1986. Average annual inflow into Rio Grande reservoir for <br />the study period was 148,000 acre-feet. <br /> <br />IV - 6 <br />