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<br />
<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
<br />
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<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for July 1969)
<br />
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<br /> Month1v discharoe Maximum dai1v Minimum dailv
<br /> Percent of
<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 6,778 8,099 119 251,080 498,000 13,900. 1 6,500 28-30
<br />Adjusted b/ 9,337 138 289,442 574,100 - - - -
<br />Green River at
<br />Green River, Ut. 5,975 5,772 96.6 178,930 354,900 10,800 1 3,900 30,31
<br />Adjusted c/ 5,720 95.7 177,315 351,700 - - - -
<br />San Juan River
<br />near Bluff, Utah 1,754 3,322 189 102,970 204,200 6,420 20 2,100 31
<br />Adjusted d/ 3,643 208 112,933 224,000 - - - -
<br />
<br />a/ Median of mean discharges for June for 30-year period 1931-60.
<br />~/
<br />c/
<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 />storage
<br />
<br />in Blue Mesa Reservoir. Storage began October 27, 1965.
<br />in Flaming Gorge Reservoir. Storage began November I, 1962.
<br />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 /> sn. mL (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa Reservoir nr
<br />Saninero Colorado 3 426 829 500 724 200 +76 100
<br />Flaming Gorge Reservoir at
<br />F1amin" GorQe Dam Utah alt5 100 3 749 000 2 032 000 - 3 200
<br />Navajo Reservoir nr a/ 3,230
<br />Archuleta, New Mexico 1,696,000 1,162,000 +19,800
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona 2./107,700 25,002,000 10,333,000 +51,000
<br />Totals: 31,276,500 14,251,200 +143,700
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<br />2./ Approximate
<br />
<br />Ted Arnow, District Chief, WRD
<br />Salt Lake City, Utah
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