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<br />.
<br />
<br />UNITED
<br />
<br />STATES DEPARTMENT AHE INTERIOR
<br />GEOLOGICAL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
<br />
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<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for December 1969)
<br />
<br /> Monthly discharge Maximum daily Minimum daily
<br /> Percent of
<br />Stream ~I Median (Cfs) 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 2,768 4,180 151 129,580 257,000 4,570 6 3,010 9
<br />Adjusted .!?I 3,467 125 107,488 213,200 - - - -
<br />Green River at
<br />Green River, Utah 1,829 4,447 243 131,800 '273,400 4,920 21,22 3,430 2
<br />Adjusted s.1 2,033 III 63,021 125,000 - - - -
<br />San Juan River
<br />near Bluff, Utah 632 1,778 281 55,112 109,300 1,980 6 981 1,2
<br />Adjusted 2) 877 139 27,175 53,900 - - - -
<br />
<br />al Median of mean discharges for the month for 30-year period 1931-60.
<br />bl Adjusted for change in storage in Blue Mesa Reservoir. Storage began October 27, 1965.
<br />-;1 Adjusted for change in storage in Flaming Gorge Reservoir. Storage began November 1, 1962.
<br />~I Adjus ted 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 /> " .. sa. mi. (acre-feet) (acre-feet) (acre-feet)
<br /> , ,"
<br />Blue Mesa Reservoir nr
<br />Sapinero, Colorado' 3,426 829,500 652,300 -43,800
<br />Flaming Gorg~ Reservoir at
<br />Flaming Gorge Dam, Utah al 15,100 3,749,000 1,565,300 -148,400
<br />Navajo Reservoir nr
<br />Archuleta, New Mexico al 3,230 1 , 6 96 , 000 1,043,400 - 55,400
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona al 107,700 25,002,000 9,605,000 -179,000
<br />Totals 31,276,500 12,866,000 -426,600
<br />
<br />~I Approximate
<br />
<br />Ted Arnow, District Chief, WRD
<br />Salt Lake City, Utah
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