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<br />UNITED STATES DEPARTMENT OF TIlE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah District
<br />
<br />STREAMFLCM AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />
<br />March 1973
<br />
<br /> Monthly discnarge Maximum dailv Minimum dail;;
<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 3,059 4,102 134 127,150 252,200 4,900 1 3,380 18
<br />Adjuste<i2/ 4,002 131 124,074 246,100 - - - -
<br />Green River at
<br />Green River, Ut 3,840 5,838 152 180,980 359,000 7,150 21 4,210 15
<br />Adjuste~7 6,147 160 190,572 378,000 - - - -
<br />San Juan River
<br />near Bluff! Ut 1,222 2,716 222 84,200 167 , 000 5,060 1 1,980 17
<br />Adjusted!!./ 4,092 335 126,846 251,600 - - - -
<br />
<br />a/ Median of mean discharges for the month for 30-year period 1931-60.
<br />b/ 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 capac ity usable contents month
<br /> sn. mi. (acre-feet) (acre-feet) (acre-feet'
<br />Blue Mesa Reservoir near
<br />Sapinero, Colorado 3,426 829,500 308,900 -6,100
<br />Flaming Gorge Reservoir at !!.!t5,100
<br />Flaming Gorge Dam, Utah 3,749,000 2,894,000 +19,000
<br />Navajo Reservoir near !!,/ 3,230
<br />Archuleta, New Mexico 1,696,000 972,800 +84,600
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona a/l07,700 25,002,000 11,966,000 -251,000
<br />Totals 31,276,500 16,141,700 -153,500
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<br />!f Approximate
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<br />Leon J, Jensen, Engineer
<br />Salt Lake City, Utah
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