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<br />UNITED
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<br />STATES DEPAR~ OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah Dis.trict
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<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
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<br />December 1972
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<br /> Monthly discharge Maximum daily Minimum daily
<br /> Percent of
<br />Stream ~/Median (Cfs) Mean (Cfs) 30-year
<br /> 1931-60 this month median C fs -days Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 2,768 4,186 151 129,780 257,400 5,210 25 3,000 12
<br />Adjuste~1 2,890 104 89,589 177,700 - - - -
<br />Green River at
<br />Green River, Ut 1,829 4,655 255 144,300 286,200 5,830 22-24 2,310 16
<br />AdjustedS1 2 183 119 67 658 134 200 - - - -
<br />San Juan River
<br />near Bluff, Ut 632 1,629 258 50,510 100,200 1,940 9 1,210 1
<br />Adjusted!!1 1,134 179 35 140 69 700 - - - -
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<br />al Median of mean discharges for the month for 3D-year period 1931-60.
<br />bl Adjusted for change in storage in Blue Mesa Reservoir. Storage began October 27, 1965.
<br />~I Adjusted for change in storage in F1sming Gorge Reservoir. Storage began November I, 1962.
<br />~I Adjusted for change in storage in Navajo Reservoir. Storage began June 27, 1962.
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<br /> Drainage area Usable End-of-month Change during
<br />Reservoir above dam capacity usable contents month
<br /> sa. mi. (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3.426 829,500 415,900 -79,700
<br />Flaming Gorge Reservoir at al 15, 100 3,749,000 3,087,000
<br />Flaming Gorge Dam, Utah -152,000
<br />Navajo Reaervoir near !.I 3,230 1,696,000 982,800 - 30,500
<br />Archuleta, New Mexico
<br />Lake Powell Reservoir at
<br />Glen Canyon Dsm, Arizona a/107,700 25.002,000 12,771,000 -341,000
<br />Totals 3],276,500 17,256,700 -603,200
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<br />~I Approximate
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<br />Leon J. Jensen. Engineer
<br />Salt Lake City, Utah
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