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<br />REC~EO
<br />APR 12 1972
<br />COLO. WAtER
<br />CONSER~l'.tIO" 80A..
<br />
<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
<br />Water Resources Division
<br />Utah District
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<br />STREAMFL~ AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER RABIN
<br />March 1972
<br />
<br />.~
<br />
<br /> Monthly discharge Maximum dailv Minimum dail v
<br /> Percent of
<br />5 tream .!/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 3,059 4,573 149 141,770 281,200 5,760 15 3,670 11
<br />Adjuste~/ 4,513 148 139,904 277,500 - - - -
<br />Green River at
<br />Green River, Ut 3,840 5,306 138 164,490 326,300 6,620 6 4,240 23
<br />Adjusted!'.7 6,526 170 202,319 401,300 - - - -
<br />San Juan River
<br />near Bluff, Ut 1,222 1,970 161 61,080 121,200 2,140 16 1,770 8
<br />Adjusted~/ 1,363 112 42,249 83,800 - - - -
<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 1, 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 3,426 829,500 317,400 -3,700
<br />Flaming Gorge Reservoir at .!/15,100 3,749,000 2,637,000 + 75,000
<br />Flaming Gorge Dam, Utah
<br />Navajo Reservoir near .!/ 3,230 1,696,000 837,700 - 37,400
<br />Archuleta, New Mexico
<br />Lake Powell Reservoir at .!/107,700 25,002,000 13,449,000 +337,000
<br />Glen Canyon Dam, Arizona
<br />Totals 31,276,500 17,241,100 +370,900
<br />
<br />.!/ Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
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