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<br />1 <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 />HYDROLOGY <br /> <br />II-8 <br /> <br />A VERAGE RIVER DISCHARGE <br />The regime of the South Platte River can be characterized in terms of <br />average monthly flows at selected points as shown in Table II-5. An <br />analysis of the average monthly flows over the period of record indicates <br />that the flood control reservoirs have modest effect on average monthly <br />flows, but significant effect on daily flows. <br /> <br />TABLE II-5 <br />A VERAGE SOUTH PLATTE RIVER DISCHARGES <br />(Exclusive of 1982-1985 Wet Period) <br />Average Monthly Flows in cfs <br /> <br /> (1972-1981 ) <br /> Littleton Denver Gage <br />Month Gage** at 19th St. <br />January 51 111 <br />February 57 118 <br />March 72 153 <br />April 192 317 <br />*May 687 1,021 <br />*June 579 770 <br />*July 400 489 <br />*August 214 305 <br />* September 91 141 <br />October 62 131 <br />November 63 133 <br />December 55 118 <br /> <br />* Boating season <br /> <br /> <br />** Littleton Gage is 6000 feet upstream of Union Avenue. There are no <br />intervening surface diversions. <br />