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<br />STATES DEPARTME~ THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
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<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for January 1968)
<br />
<br /> Month1v discharQe Maximum dailv Minimum dail v
<br /> Percent of
<br />Stream 2.1 Median (ds) Mean (cfs) 30-year
<br /> 1931-60 this month median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah ~I 2,487 3,661 147 113,500 225,100 - - - -
<br />Adjusted E.I 2,671 115 88, 996 176,520 - - - -
<br />Green River at
<br />Green River, Ut. ~I 1,632 4,284 262 132,800 263,400 - - - -
<br />Adjusted ~I 1,625 99.6 50,366 99,900 - - - -
<br />San Juan River
<br />near Bluff, Utah ~I 609 517 84.9 16,037 31,809 - - - -
<br />Adjusted ill 381 62.3 11,802 23,409 - - - .
<br />
<br /> Total I End-of-month Change during
<br />Reservoir capacity contents month
<br /> (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa 940,600 384,050 -48,600
<br />Flaming Gorge 3,789,000 2,164,900 -163,500
<br />Navajo 1,709,000 592,300 -8,400
<br />Lake Powe 11 27,000,000 8, 13 7, 000 -128,000
<br />Totals 33,438,800 11,278,250 -348,500
<br />
<br />~I Median of mean discharges for January
<br />for 30-year period 1931-60.
<br />'E,I Adjusted for change in storage in Blue
<br />Mesa Reservoir. Storage began November
<br />27, 1965.
<br />~I Adjusted for change in storage in Flaming
<br />Gorge Reservoir, Storage began November
<br />1, 1962,
<br />ill Adjusted for change in storage in Navajo
<br />Reservoir. Storage began June 28, 1962.
<br />~I Ice affected; extremes not shown
<br />
<br />Ted Arnow
<br />District Chief (WRD)
<br />Salt Lake City, Utah
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