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<br />
<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah Dis trict
<br />
<br />.
<br />RECHVED
<br />JUN 111973
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<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BAS IN
<br />
<br />....
<br />-...I
<br />
<br />May 1973
<br />
<br />COUI. WATER
<br />CQlISIJi1$J.Ti61ilH BOARD
<br />
<br /> Monthly discharge Maximum dailv Minimum dan;;
<br /> Percent of
<br />Stream ,!/Med ian (C fs) Mean (Cfs) 30-year
<br /> 1931-60 this month median C fs -davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 18,345 26,571 145 823,700 1,633,800 41,150 22 11,440 9
<br />Adjuste~/ 29,212 159 905,570 1,796,200 - - - -
<br />Green River at
<br />Green River, Ut 14,180 19,545 138 605,910 1,201,800 30,200 25 7,530 2
<br />Adjuste~7 22,424 158 695,135 1,378,800 - - - -
<br />San Juan River
<br />near Bluff, Ut 5,334 8,286 155 256,880 509,500 11,780 22 4,800 4
<br />Adjusted~.1 13,651 256 423,191 839,400 - - - -
<br />
<br />,!/ Median of mean discharges for the month for 30-year period 1931-60.
<br />~/ Adjusted for change in storage in Blue Mesa Reservoir. Storage began October 27, 1965,
<br />~/ Adjusted for change in storage in Flaming Gorge Reservoir. Storage began November I, 1962.
<br />~/ Adjusted for change in storage in Navajo Reservoir. Storage began June 27, 1962,
<br />
<br /> Drainage area Usable End-of-month Change during
<br />Reservoir above dam capacity usable contents month
<br /> so, mt. (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 471,000 +162,400
<br />Flaming Gorge Reservoir at ,!/ 15,100 3,749,000 3,240,000 +177,000
<br />Flaming Gorge Dam, Utah
<br />Navajo Reservoir near a/
<br />Archuleta, New Mexico 3,230 1,696,000 1,504,200 +329,900
<br />Lake Powell Reservoir at ,!/
<br />Glen Canyon Dam, Arizona 107,700 25,002,000 13,852,000 +2,601,000
<br />Totals 31,276,500 19,067,200 +3,270,300
<br />
<br />a/ Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />~ Salt Lake City. Utah
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