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<br />
<br />UNITED STATES DEPARrAItr OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah District
<br />
<br />RtCE/VED
<br />NoV 05
<br />1971
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<br />
<br />STREA}WLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />October 1971
<br />
<br /> "^ in
<br /> Monthly <lis charge a lilv Minimum daily
<br /> Percent of VAliD
<br />Stream .!!/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 2,940 4,552 155 141,120 279,900 7,880 18 3,610 13
<br />AdjustedE./ 4,271 145 132,392 262,600 - - - -
<br />Green River at
<br />Green River, Ut 2,034 3,330 164 103,240 204,800 3,820 19 2,970 15
<br />AdjustedE.! 2,794 137 86,615 171,800 - - - -
<br />San Juan River
<br />near Bluff, Ut 978 1,661 170 51,498 102,200 5,089 1 804 13
<br />AdjustedY 1,968 201 61 , 003 121,000 - - - -
<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 />~I Adjusted for change in storage in Flaming Gorge Reservoir. Storage began November I, 1962.
<br />~I Adjusted 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 /> SQ. mi. (acre-feet) (acre-feet) (acre- feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 515,000 -17,300
<br />Flaming Gorge Reservoir at 2./ 15,100 3,749,000 2,898,000 -33,000
<br />Flaming Gorge Dam, Utah
<br />Navajo Reservoir near
<br />Archuleta, New Mexico al 3,230 1,696 ,000 1,012,000 +18,800
<br />Lake Powell Reservoir at -10,000
<br />Glen Canyon Darn, Arizona 2./107,700 25,002,000 13,599,000
<br />Totals 31,276,500 18,024,000 -41,500 I
<br />
<br />J!I Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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