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<br />.
<br />
<br />UNITED
<br />
<br />STATES DEPARTMa OF THE
<br />GEOLOGIC~SURVEY
<br />Water Resources Division
<br />Utah District
<br />
<br />INTERIOR
<br />
<br />(fl' J-'
<br />
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<br />
<br />STREAMFLOW AND RESERVOIR CONTENTS IN UPPER COLORADO RIVER BASIN
<br />May 1971
<br />
<br />:[......
<br />
<br />----- - .-----
<br /> Month 1 v discharge
<br /> Percent of
<br />Stream .!/Median (Cfa) Mean (Cfs) 30-year
<br />-. 1931-60 this month medi3.n Cfs-d!Xs , t,cre
<br />Colorado River 70
<br />nesr CiSCO& Utah 18,345 12,850 398,320 79
<br />Adjuste~/ 14,580 80 451,980 89
<br /> --
<br />Green River at 81 372,910
<br />Green River, Ut 14,810 12,029 73
<br />AdjustedE.! 17 , 738 120 549,886 1,09
<br />San Juan River -
<br />near Bluff, Ut 5,334 1,395 26 43,233 I 8
<br />Adjusted!!.! I 2,313 43 71,717 I 14
<br />,
<br />
<br />-----)~~_xim~~ ~Si 111 Mi r~imu~ r!,~i.IL-:~~
<br />,
<br />
<br />-reet
<br />
<br />::fs
<br />
<br />- ---- I
<br />Q.'!t~ C!.L
<br />0,31 6,720
<br /> - -
<br /> 20 6,580
<br /> - -
<br />-
<br /> 19 554
<br /> - -
<br />--
<br />
<br />~.s.~
<br />
<br />0,100
<br />6,500
<br />
<br />19,000 3
<br />
<br />3
<br />
<br />!/ Median of mean discharges for the
<br />~/ Adjusted for change in storage in
<br />~/ Adjusted for change in storage in
<br />i/ Adjusted for change in storage in
<br />
<br />9,700 ~;~:~1
<br />.?.2! 001-"':'--~'
<br />
<br />5,750 2,140
<br />2,250 I -
<br />L..___-._
<br />
<br />-~---l
<br />3,4 ]
<br />
<br />month for 3D-year period 1931-60,
<br />Blue Mesa Reservoir. Storage began October 27, 1965.
<br />Flaming Gorge Reservoir. Storage began November 1, 1962.
<br />Navajo Reservoir. Storage began June ?7, 1962.
<br />
<br /> - -
<br /> D'cainage area Usable Fnd-of-month Change during
<br /> Reservoir above dam capacity usable contents month
<br /> so. mi. (acre-feet) (acre-feet) (acrp.-feet)
<br />Blue Mesa Reservoir near
<br />SaDinero Colorado - 3 426 829,50Q. ----- 365,500 +106,400 --
<br />Flaming Gorge Reservoir at
<br />Flaming Gorge Dam, Utah 2,/ 15,100 3,749,000 2,337,000 +351,000
<br /> - -
<br />Navajo Reservoir near
<br />Archuleta, New Mexico !o/ 3,230 t , 696 , 000 925,200 +56,500
<br /> - -- -- ,-
<br />Lake Powell Reservoir at
<br />Glen Canyon Dam, Arizona a/107,700 25,002,000 13,031,000 +520,000
<br /> --- ------.-- -.---- ------ --
<br /> Totals l 31 276 500 16,658,700 +1,033,900
<br /> ._________________1._.1.___ -------------- -._-..--
<br />
<br />!!/ Approximate
<br />
<br />Leon J. Jensen, Engineer
<br />Salt Lake City, Utah
<br />
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