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<br />...-j <br />l:'- <br />tn <br />1'-1 <br />(,;) <br /> <br />t.-,; <br /> <br />-. <br /> <br />1 <br /> <br />. <br /> <br />. <br /> <br />3,000 aere-feet of San Juan-Chama water were delivered to Elephant Butte in <br /> <br />January 1981 for a portion of the evaporation expeeted in 1981. <br /> <br />Pojoaque Tributary Unit <br /> <br />The eare, operation, and maintenanee of unit faeilities were by the Pojoaque <br /> <br />Valley Irrigation Distriet. Nambe Falls Dam began to spill on April 8, 1980, and <br /> <br />spill eontinued for 87 days. The peak elevation of 6,826.92 during 1980 pro- <br /> <br />dueed a rate of spill estimated to be 85 ft3/s. The spillway erest elevation is <br /> <br />6,826.60. <br /> <br />Irrigation releases for the year amounted to 1,350 aere-feet. Monthly water <br /> <br />storage and releases for Nambe Falls Reservoir are shown on table 5. <br /> <br />SAN LUIS VALLEY PROJECT, COLORADO <br /> <br />Platoro Dam and Reservoir <br /> <br />In the spring of 1980 the reservoir was drawn down to aeeommodate predicted <br /> <br />flood inflow due to high snow depths. <br /> <br />Minimum elevation during this time was <br /> <br />9,971.8--14,099 aere-feet. <br /> <br />THe dam was operated during the runoff season for <br /> <br />flood eontrol under the direetion of the Corps of Engineers and after the flood <br /> <br />season releases were made as requested by Colorado. ~lood and conservation <br /> <br />storage increased the elevation to 10,015.4--42,869 acre-feet. Exeept for flood <br /> <br />control storage and eonservation storage oeeurring in the spring, natural flow <br /> <br />of the river was passed through the dam during the 1980 irrigation season. <br /> <br />The releases from Platoro were set last fall and were adjusted periodieally <br /> <br />during the winter months of 1980-1981 to pass inflow. The laek of snow this <br />