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<br />
<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah Dis trict
<br />
<br />.
<br />RECEIVED
<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />
<br />JUL 051973
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<br />June 1973
<br />
<br />COLD, WATER
<br />CONSERVATION BOARD
<br />
<br /> Monthly discharge Maximum dailv 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 22,485 26,498 118 794,945 1,576,800 42,310 16 18,550 1
<br />AdjustedE./ 30,757 137 922,712 1,830,200 - - - -
<br />Green River at
<br />Green River, lit 19,435 17,796 91.6 533,890 1,058,970 24,810 16 10, 500 31
<br />AdjustedS1 18,704 96.2 561,110 1,112,970 - - - -
<br />San Juan River
<br />near Bluff, lit 5,105 7,602 149 228,050 452,337 10,860 16 4,510 7
<br />Adjusted!!.! 11 , 346 222 340,377 675,137 - - - -
<br />
<br />,!/ Median of mean discharges for the month for 30-year period 1931-60.
<br />~I 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 I, 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 near
<br />Sapinero, Colorado 3,426 829,500 724,400 +253,400
<br />Flaming Gorge Reservoir at !o/ 15,100 3,749,000 3,294,000 + 54,000
<br />Flaming Gorge Dam, Utah
<br />~avajo Reservoir near a/ +222,800
<br />Archuleta, New Mexico 3,230 1,696,000 1,727,000
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Ari~ona a/ 107,700 25,002,000 16,104,000 +2,252,000
<br />Totals 31,276,500 21,849,400 +2,782,200
<br />
<br />,!/ Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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