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<br />
<br />UNITED STATES DEPMiMENT OF THE INTERIOR
<br />GEOLO_AL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
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<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for August 1969)
<br />
<br /> Monthb dischar"e Maximum dailv Minimum dailv
<br />Stream Percent of
<br />!!/ Median (Cfs) Mean (Cfs) 30-year
<br /> 1931-60 this month median C fs -davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 3,095 3,175 103 98,410 195,200 4,760 19 2,550 8
<br />Adjusted B./ 3,100 100 96,094 190,600 - - - -
<br />Green River at
<br />Green River, Utah 2,683 4,279 159 132,650 263,100 5,280 7 3,300 30-31
<br />Adjusted c/ 2,636 98.2 81,725 162,100 - - - -
<br />San Juan River
<br />near Bluff, Utah 1,056 1,338 127 41,475 82,260 3,640 15 730 23-31
<br />Adjusted d/ 1,125 107 34,888 69,200 - - - -
<br />
<br />a/ Median of mean discharges for June for 30-year period 1931-60.
<br />b/ 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 />~/ 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 nr
<br />Sapinero, Colorado 3,426 829,500 719,600 -4,600
<br />Flaming Gorge Reservoir at -~01,000
<br />Flaming Gorge Dam, Utah a/15,100 3,749,000 1,931,000
<br />Navajo Reservoir nr
<br />Archuleta, New Mexico a/ 3,230 1,696,000 1,149,000 - 13 , 000
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona a/107,700 25,002,000 9,932,000 -401,000
<br />Totals: 31,276,500 13,731,600 -519,600
<br />
<br />!!/ Approximate
<br />
<br />Ted Arnow, District Chief, WRD
<br />Salt Lake City, Utah
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