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<br />
<br />UNITED STATES DEPARTMEAF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah District
<br />
<br />.
<br />
<br />November 1971
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<br />STREAMFLCM AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BAS IN
<br />
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<br />
<br /> ..
<br /> Monthly discharge Maximum dai1v Minimum dai1v
<br /> Percent of
<br />Stream .!/Median (Cfs) Mean (Cfs) 30-year
<br /> 1931-60 this month median Cfs-days Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 3.050 4,597 151 137,910 273,500 5,230 17 4,000 23
<br />Adjuste@/ 4,210 138 126,292 250,500 - - - -
<br />Green River at
<br />Creen River, Ut 2,098 4,382 209 131,470 260,800 4,850 22 3,790 11
<br />Adjusted.f.1 2,938 140 88,127 174,800 - - - -
<br />San Juan River
<br />near Bluffci Ut 738 972 132 29,173 57 , 86 0 1,430 17 796 11
<br />Ad jus ted!:!./ 1,107 150 33,204 65,860 - - - -
<br />
<br />~/ Median of mean discharges for the month for 30-year period 1931-60.
<br />~/ Adjusted for change in storage in Blue Mesa Reservoir. Storage began October 27, 1965.
<br />~/ Adjusted for change in storage in Flaming Gorge Reservoir. Storage began November 1, 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 c apaci ty usable contents month
<br /> SQ. mi. (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 492,000 -23,000
<br />Flaming GDrge Reservoir at .!/15,100 3,749,000 2,812,000 -86,000
<br />Flaming Gorge Dam, Utah
<br />Navajo Reservoir near ~/ 3,230 I, 696,000 1,020,000 + 8,000
<br />Archuleta, New Mexico
<br />Lake Powell Reservoir at .!/107,700 25,002,000 13,416,000 -183,000
<br />Glen Canyon Dam, Arizona
<br />Totals 31,276,500 17,740,000 -284,000
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<br />a/ Approxilll8te
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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