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<br />UNITED STATES DEPARTMENT OF THE INTERIOR.
<br />GEOLOGICAL SURVEY
<br />WATER RESOURCES DIVISION
<br />Utah District
<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />(Provisional records for July 1967)
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<br /> Month1v dischar<!e Maximum daily Minimum dailv
<br /> Percent of
<br />Stream ~I Median (cfs) Me"an (ds) 30-year -
<br /> 1931-60 this month median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 6,778 5,580 82.3 172,950 343,000 7,820 2 4,200 13
<br />Adjusted !!I 6,778 5,720 84.4 177 ,467 352,000 - - - -
<br />Green River at
<br />Green River, Ut. 5,975 8,479 142 262,860 521,400 16,400 1 - -
<br />Adjusted ~I 5,975 13,531 226 419,467 832,000 - - - -
<br />San Juan River
<br />near Bluff, Ut. 1,754 594 33.9 18,420 36,540 1,630 18 2.29 11
<br />Adjusted ill 1,754 1,159 66.1 35,917 71,240 - - - -
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<br /> Total End-of-month Change during I
<br />Reservoir capacity contents month
<br /> (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa 940,800 572,000 +9,000
<br />Flaming Gorge 3,789,000 2,985,000 +310,600
<br />Navajo 1,709,000 621,200 +34,700
<br />Lake Powell 27,000,000 8,623,980 +216,980
<br />Totals 33,438,800 12,802,180 +571,280
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<br />2.1 Median of mean discharges for July for 30-year
<br />period 1931-60.
<br />'E,I Adjusted for change in storage in Blue Mesa
<br />Reservoir. Storage began November 27, 1965.
<br />~I Adjusted for change in storage in Flaming
<br />Gorge Reservoir. Storage began November I,
<br />1962.
<br />ill Adjusted for change in storage in Navajo
<br />Reservoir. Storage began June 28, 1962.
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<br />Ted Arnow
<br />District Chief (WRD)
<br />Salt Lake City, Utah
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