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<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah Distric t
<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for February 1967)
<br />
<br /> Month1v dischar"e Maximum dailv Minimum dailv
<br /> Percent of
<br />Stream ~I Median (cfs) Mean (cis) 30-year
<br /> 1931-60 this month median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 2,690 2,428 90.3 67,970 134,800 3,440 2 2,150 25-28
<br />Adjusted 'E,I 2,690 2,544 94.6 71, 239 141,300 - - - -
<br />Green River at
<br />Green River, Ut. 2,074 3,093 149 86,610 171,800 3,850 27 2,500 12,13,20
<br />Adjusted ~I 2,074 1,847 89.1 51,728 102,600 - - - -
<br />San Juan River
<br />near Bluff, Ut. 867 1,175 136 32,905 65,270 1,500 16 914 11-15
<br />Adjusted ill 867 759 87.5 21,261 42,170 - - - -
<br />
<br /> Total End-of-month Change durin!
<br />Reservoir capacity contents month
<br /> (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa 940,800 372,500 +6,500
<br />Flaming Gorge 3,789,000 2,096,000 -69,200
<br />Navajo 1,709,000 374,300 -23,100
<br />Lake Powe 11 27,000,000 7,525,000 -135,400
<br />Totals 32,496,800 10,367,800 -221,200
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<br />~I Median of mean discharges for February for
<br />30-year period 1931-60.
<br />~I Adjusted for change in storage in Blue Mesa
<br />Reservoir. Storage began November 27, 1965.
<br />~/ Adjusted for change in storage in Flaming
<br />Gorge Reservoir. Storage began November 1,
<br />1962.
<br />ill Adjusted for change in storage in Navajo
<br />Reservoir. Storage began June 28, 1962.
<br />
<br />Ted Arnow
<br />District Chief (WRD)
<br />Salt Lake City, Utah
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