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<br />UNITED STATES DEPARTI~ENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
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<br />STREAMFLO\J AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER UASIN
<br />(Provisional records for June 1969)
<br />
<br /> r,lonthlv discharqe Maximum dallv Minimum dailv
<br /> Median (cfs)IMean (Cfs) Percent of
<br />Stream ~ 30-year
<br /> 1931-60 i toi s month median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 22,485 10,995 48.9 329,850 654,200 16,700 1 8,240 15
<br />Ad.iusted b/ 13,051 58.0 391,536 776,600 - - - -
<br />Green River at
<br />Green River, Utah 19,435 11 ,335 58.3 340,050 674,500 18,000 1 7,860 16
<br />Ad.iusted c/ 15,036 77 .4 451,078 894,700 - - - -
<br />San Juan River
<br />near Bluff, Utah 5,105 4,012 78.6 120,350 238,700 5,540 1 3,200 16
<br />Ad.iusted d/ 5,334 104 160,022 317,400 - - - -
<br />
<br />~ 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 />EJ Adjusted for change in storage in Flaming Gorge Reservoir. Storage began November 1, 1962.
<br />if 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 cont~)ts month
<br /> sn. mi. (acre-feet) (acre-feet (acre-feet)
<br />Blue Mesa Reservoir nr I
<br />Saoinero, Colorado 3,426 829,500 648,100 + 122,400
<br />Flaming Gorge Reservoir at ~ !
<br />Fl ami no Goroe Dam, Utah 15,100 3,749,000 2,035,200 + 220,200
<br />Navajo Reservoir nr ~
<br />Archuleta. New Mexico 3,230 1,696,000 1 ,142,200 + 7B,700
<br />Lake Powell Reservoir at ~ 107,700
<br />Glen Canyon Dam. Arizona 25,002,000 10,282,000 + 729,000
<br />Totals: -- 31 276,500 14 ;t1}J;5ml I + l;-t5tJ . 300
<br />
<br />~ Approximate.
<br />
<br />Ted Arnow, District Chief, WRD
<br />Salt Lake City, Utah
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