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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 May 1968)
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<br /> Month1v discharge Maximum dailv Minimum dailv
<br /> Percent of
<br />Stream 2.1 Median (ds) Mean (ds) 30-year
<br /> 1931-60 this month median Cfs-davs Acre-feet Cfs Date Cfs Date
<br />Colorado River
<br />near Cisco, Utah 18,345 10, 161 55.4 314,980 624,800 19,100 24 3,320 1
<br />Adjusted 'E,I 11,710 63.8 362,970 719,940 - - - -
<br />Green River at
<br />Green River, Utah 14,810 11,687 78.9 362,300 718,600 17 , 800 26 5,400 2
<br />Adjusted cl 11,462 77 .4 355,337 704,800 - - - -
<br />San Juan River
<br />near Bluff, Utah 5,334 2,284 42.8 70,810 14P,400 3,820 24 1,690 1
<br />Adjusted ill 4,233 79.4 131,235 260,300 - - - -
<br />
<br /> Total End-of-month. Change during
<br />Reservoir capacity contents month
<br /> (acre-feet) (acre-feet) (acre-feet)
<br />Blue Mesa 940,800 442,720 +106,560
<br />Flaming Gorge 3,789,000 2,005,300 - 20,300
<br />Navajo 1,709,000 723,700 +122,400
<br />Lake Powell 27,000,000 7,959,000 +500,000
<br />Totals 33,438,800 11,130,720 +708,660
<br />
<br />~I Median of mean discharges for May 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 1,
<br />1962.
<br />ill Adjusted for change in storage in Navajo
<br />Reservoir. Storage began June 28, 1962.
<br />
<br />Ted Arnow
<br />District Chief (WRD)
<br />Salt Lake City, Utah
<br />
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