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<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah District
<br />
<br />.
<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
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<br />January 1973
<br />
<br /> MonfnIYCIischarge Maximum dailY Minimum dail v
<br /> Percent of
<br />Stream ,!/Median (Cfs) Mean (Cfs) 3D-year
<br /> 1931-60 this month . median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 2,487 4,821 194 149,460 296,500 6,000 10 3,820 3
<br />Adjus te~/ 3,482 140 107,940 214 100 - - - -
<br />Green River at
<br />Green River, Ut 2,339 4,373 268 135,560 268,800 4,900 1 3,960 23
<br />Adjuste~7 2,339 143 72 498 143 800 - - - -
<br />San Juan River
<br />near Bluff. Ut 609 1,789 294 55,450 110,000 2,400 1 1,550 10
<br />Adjuste~/ 1,187 195 36,804 73,000 - - - -
<br />
<br />.!!./ Median of mean discharges for the month for 3D-year period 1931-60.
<br />2/ 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 />d/ 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 /> sa. mL (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 333,500 -82,400
<br />Flaming Gorge Reservoir at a/ 15,100 3,749,000 2,962,000 -125,000
<br />Flaming Gorge Dam, Utah
<br />Navajo Reservoir near a/ 3,230 1,696,000 945,800 -37,000
<br />Archuleta, New Mexico
<br />Lake Powell Reservoir at !!./107,700
<br />Glen Canyon Dam, Ari~ona .25,002,000 12,253,000 -518,000
<br />Totals 31,276,500 16,494,.300 -762,400
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<br />.!!./ Approximate
<br />
<br />Leon J. . Jensen. Engineer
<br />Salt L~ltt' C\.ty, Ut8,h
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