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<br />.
<br />
<br />UNITED
<br />
<br />STATES DEPARraT OF THE
<br />GEOLOGIC~SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
<br />
<br />INTERIOR
<br />
<br />c/8 ~. 0
<br />F,/'?/J ~
<br />" . G-J
<br />Go
<br />C'I
<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for May 1970)
<br />
<br /> Monthlv discharlle 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 1B,345 24,010 131 744,420 1,477,000 36 ,000 25-31 6,640 3
<br /> AdjustedE/ 29,277 160 907,601 1,800,200 - - - -
<br /> Green River at
<br /> Green River, Utah 14, B10 14'.219 96 440,7BO B74,300 22,000 26-31 4,530 7
<br /> AdjustedCf 15,904 107 493 017 977 900 - - - -
<br /> San Juan River
<br />I near Bluff, Utah 5,334 2,3B6 45 73,769 146,700 4,460 20 542 7
<br />Adjusted !if 4,845 91 150,189 297,900 - - - -
<br />
<br />a/ Median of mean discharges for the
<br />~/ Adjusted for change in storage in
<br />c/ Adjusted for change in storage in
<br />~/ Adjusted for change in storage in
<br />
<br />month for 30-year period 1931-60.
<br />Blue Mesa Reservoir. Storage began October 27, 1965.
<br />Flaming Gorge Reservoir. Storage began November 1, 1962.
<br />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. mi. (acre-feet) (acre-feet) ( acre-feet'
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 743,800 +323,200
<br />Flaming Gorge Reservoir at
<br />Flaming Gorge Dam, Utah a/ 15,100 3,749,000 1,5BO,000 +103,600
<br />Navajo Reservoir near
<br />Archuleta New Mexico a/ 3,230 1,696,000 1,027,800 +151,200
<br />Lake Powell Reservoir at !!/
<br />Glen Canyon Dam, Arizona 107,700 25,002,000 10,474,000 +1,322,000
<br />Totals 31,276,500 13,B25,600 +1,900,000
<br />
<br />!!/ Approximate
<br />
<br />Ted Arnow, District Chief, WRD
<br />Salt Lake City, Utah
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