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<br />UNITED STATES DEPARTI-lE.F THE INTERIOR
<br />GEOLOGICAL ~URVEY
<br />Water Resources Division
<br />Utah Di.strict
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<br />
<br />STREfJ1FLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />January 1972
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<br /> IVSE';~ .. /<;4'
<br /> Monthly discharge Maximum d<li~ll, ~1inimum daily
<br /> Percent of "'I~
<br />Stream !!IMedian (Cfs) Nean (Cfs) 30-year
<br /> 1931-60 this month median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 2,487 4,225 172 130,980 259,800 4,990 14 3.320 4
<br />AdjusteciE.1 3.259 131 101,034 200,400 - - - -
<br />Green River at
<br />Green River, Dt 1,632 3,942 242 122,200 242,400 5,470 16 2,290 7
<br />AdjustedS} 2,755 169 85,405 169,400 - - - -
<br />San Juan River
<br />near Bluff, Ut 609 1,955 321 60,600 120,200 2,070 4 1,870 13
<br />Adjusted3!/ 940 154 29,140 57,600 - - - -
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<br />al Median of mean discharges for the month for 30-year period 1931-60.
<br />hi
<br />~/
<br />~/
<br />
<br />Adjusted
<br />Adjusted
<br />Adjusted
<br />
<br />for
<br />for
<br />for
<br />
<br />change in
<br />change in
<br />change in
<br />
<br />storage
<br />storage
<br />stor2ge
<br />
<br />in Blue Mesa Reservoir. Storage began October 27, 1965.
<br />in Flaming Gorge Reservoir. Storage began November 1, 1962.
<br />in Navajo Reservoir. Storage began June 27, 1962.
<br />
<br /> Drainage area Usable ! End-of-month Change duri.ng
<br />Reservoir above dam capacity usable contents month
<br /> sa. mi. (acre_-feet) (acre-feet) (acre-feet)
<br />Blue Nesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 371,700 -59,400
<br />Flaming Gorge Reservoir at !!/15,100 3,749,000 2,632,000 -73,000
<br />Flaming Gorge Darn, Utah
<br />Navajo Reservoir near
<br />Archuleta, New Hexico "I 3,230 1,696,000 928,900 -62,400
<br />Lake Powell Reservoir at I
<br />Glen Canyon Darn, Arizona ~/107, 700 25,002,000 12,943,000 -174,000
<br />Totals 31,276,500 16,875,600 -368,800
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<br />E,/ Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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