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<br />
<br />UNITED STATES DEPAR~ OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah District
<br />
<br />. .
<br />
<br />RECE\VED
<br />
<br />/:>.UG 4. '972
<br />COLO. ',Ij^1cR
<br />toNScR~AIION BOARD
<br />
<br />.
<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />July 1972
<br />
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<br />
<br /> Monthly discharge Maximum dailu Minimum daih
<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 6,778 3,121 46.0 96,760 191,900 5,580 1 2,120 24
<br />Adjuste@1 3,009 44.4 93,269 185,000 - - - -
<br />Green River at
<br />Green River, Ut 5,975 3,962 66.3 122,830 243,600 6,160 1 2,740 21
<br />Adjusted.S7 5,181 86.7 160,625 318,600 - - - -
<br />San Juan River
<br />near Bluff, Ut 1,754 267 15.2 8,276 16,420 566 1 120 29-3]
<br />Adjusted!!.! 76.7 4.4 2,379 4,720 - - - -
<br />
<br />al Median of mean discharges for the month for 30-year period 1931-60.
<br />hi Adjusted for change in storage in Blue Mesa Reservoir. Storage began October 27, 1965.
<br />~I 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 capacity usable contents month
<br /> so. mL (acre-feet) (acre-feet) ( acre-feet)
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 531,500 -6,900
<br />Flaming Gorge Reservoir at al 3,749,000 3,535,000 +75,000
<br />Flaming Gorge Dam, Utah 15,100
<br />Navajo Reservoir near al 3,230 1,696,000 937,700 -11,700
<br />Archuleta, New Mexico
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona al 107,700 25,002,000 13,735,000 -448,000
<br />Totals 31,276,500 18,739,200 391,600
<br />
<br />!!I Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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