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<br />..., <br />L'- <br />eT) <br />~ ~::.> <br />(=,1 <br /><..:) <br /> <br />Table No, 1 shows the discharge of Costilla Creek near the <br /> <br />Costilla gaging station for the period 1911 to 1941 as recorded and as <br /> <br />estimated by the aJove described process. Table No, 2 shows the dis- <br /> <br />charge of Costilla Creek below the Costilla Reservoir as estimated by the <br /> <br /> <br />process described above. Table No.4 shows the change in the stage of <br /> <br />the Costilla Reservoir which was used to convert the reoorded discharge <br /> <br />of the river to natural flaw, <br /> <br />In order to test the validity of the estimates of the runoff <br /> <br />of Costilla Creek at the gaging station, drawing No, CC-6was prepared, <br /> <br />This shows the annual runoff of the Rio Hondo, Rio Taos at two points, <br /> <br />the Rio Colorado, Rio Grande at Del Norte and the Conejos River at <br /> <br />Mogote, all in terms of percentage of the mean for the period 1911 to <br /> <br />1940 inclusive, On this graph has been shown the runoff of Costilla <br /> <br />Creek at Costilla gaging station in terms of peroentage of the mean for <br /> <br />the recorded period and for the estimated period. It may be noted that <br /> <br />the curve showing the discharge of the Costilla River falls well within <br /> <br />the pattern of the curves representing the adjacent streams, From this <br /> <br />drawing it was concluded that the estimates made of the runoff of <br /> <br />Costilla Creek are fair estimates and can be used to represent fairly <br /> <br />the water supply of that river for the period 1911 to date, <br /> <br />DEMAND <br /> <br />The demand for direct flaw users on the river talaw the canyon <br /> <br />mouth is assumed as follows: <br /> <br />- 9 - <br />