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<br />OPERATIONS <br /> <br />~l~ <br /> <br />RESERVOIRS <br /> <br />Dunng water year 1974, the Upper <br />Colorado River Basin yielded 10.450,- <br />000 acre. feet or 85 percent of the rong. <br />time average. The disposition of this <br />runoff was as follows. <br /> <br />Net Re~IHvolr Storage <br />Increase <br />Evaporation loss <br />Bank Storage Increase <br />l1elease to lower Basin <br /> <br />"ere-Feel <br />600.000 <br />610.000 <br />980,000 <br />8,260.000 <br />10.450,000 <br /> <br />Total <br /> <br />8 <br /> <br />Waler storage at Glen Canyon Increased <br />by 720.000 acre. feet dunng the periOd <br />October 1973 to September 1974. <br />Flaming Gorge gained 400,000 acre. <br />feet, while Navajo and Blue Mesa losl <br />380.000 and 135.000 acre. feel. respec- <br />tively. In the spring Fontenelfe and Mor. <br />row Point were agam filled to capacity. <br /> <br />Flaming Gorge Reservoir filled lor the <br />first time on August I, 1974, with a <br />content of 3.750,000 acre-feet and an <br />elevation of 6.040 feet. lake Powell's <br />alltime high water elevallon occurred <br />on June 30, 1974. when active storage <br />reached 20,103,000 acre. feet at eleva. <br />tion 3,667 feet. <br /> <br />RIVERS <br /> <br />Releases from Glen Canyon Dam were <br />scheduled to Integrate available spring. <br />time surplus hydroelectflc power from <br />the northwest with minimum releases <br />provided by the operating criteria. The <br />resulting pattern 01 InflOw to lake Mead <br />and scheduled lake Mead water de. <br />mands caused the level 01 the lake to <br />recede 6 feel dUring the bass-spawning <br />season. IndIcations are that a receding <br />lake level and other conditions resulted <br />In a below-normal bass Spawn. Due to <br />relatively favorable spawning conditions <br />in prevIous years, however. fishing suc- <br />cess In 1974 was better than average. <br />Sustained releases prOVIded favorable <br />nesting conditions for ducks and geese <br />along the Green River in Wyoming. <br />Utah. and Colorado. Flows below Fon. <br />tenelle. Framing Gorge, Blue Mesa, and <br />Morrow Point were regulated to meet <br />irrigation and power demands <br />