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<br />UNITED STATES DEPARTME~F THE INTERIOR
<br />GEOLOGICAL IIlVEY
<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 October 1970)
<br />
<br /> Monthlv discharl!e Maximum dailv Minimum daily
<br /> Percent of
<br />Stream !}./ Median (Cfs) Mean (Cfs) 30-year
<br /> 1931-60 this month median Cis -davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near CiSCOb Utah 2,940 5,780 197 179,180 355,400 6,810 11 4,650 6
<br />Adjuste~1 5,191 177 160,928 319,200 - - - -
<br />Green River at
<br />Green River, Utah 2,034 2,834 139 87 , 850 174,300 3,540 4 2,360 8
<br />Adjuste~l 3,014 148 93,421 185,300 - - - -
<br />San Juan River
<br />near Bluff, Utah 978 2,295 235 71,160 14l,100 2,580 24 2,180 7
<br />Adjustedi/ 1,483 152 45,979 91,200 - - - -
<br />
<br />al Median of mean discharges for the
<br />b/ Adjusted for change in storage in
<br />~/ Adjusted for change in storage in
<br />il Adjusted for change in storage in
<br />
<br />month for 30-year period 1931-60.
<br />Blue Mesa Reservoir. Storage began October 27, 1965.
<br />Flaming Gorge Reservoir. Storage began November 1, 1962.
<br />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. mi. (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 774,200 -36,200
<br />Flaming Gorge Reservoir at
<br />Flaming Gorge Dam Utah al 15 100 3 749 000 1 802 000 +11.000
<br />Navajo Reservoir near
<br />Archuleta, New Mexico !!I 3,230 1,696,000 1,211,200 -49,900
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona 2./ 107,700 25,002,000 12,134,000 +95,000
<br />Totals 31,276,500 15,92I,400 +19,900
<br />
<br />!!I Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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