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<br />TABLE VII <br /> <br />COLORADO RIVER MAINSTREAM WATER SUPPLY AVAILABLE TO THE LOWER BASIN <br /> <br />Comparison of U.S.D.I. (Secretary Udall) t and C.R.B. Estimates <br />Unit: million acre-feet/year <br /> <br />Item <br /> <br />Estimated upper basin depletions_________________ <br />Release at Glen Canyon Dam____________________ <br />Net gain-Glen Canyon to Hoover Dam__________ <br />Lake Mead evaporatiou_________________________ <br />Lake Mead storage drawdown___________u_______ <br /> <br />Available for release at Hoover Dam___h__hh___ <br />Inflow, Bill Williams River______________________ <br />Net losse.s-Hoover Dam to Mexico under present <br />river conditions. including excess arrivals to <br />Mexico______________________________________ <br />Delivery to Mexico_____________________________ <br /> <br />Available for beneficial consumptive use at and <br />below Hoover Dam under present river conaitiona~ <br />Savings and additions-future salvage~~~~_~~_~__~~ <br /> <br />Available for beneficial consumptiY6 use at and <br />below Hoover Dam with salvage programs in <br />operation_~ _ ~ _ ___ _ __ ~ _ ~ ~_ ~ __ ___ ___ ___~____ _'_~ <br /> <br />. 1975 <br /> <br />U.S.D.!. <br /> <br />4,000 <br />19,840 <br />+0.610 <br />-0.900 <br />+0.210 <br /> <br />9.760 <br />+0.055 <br /> <br />-1.270 <br />-1.500 <br /> <br />7.045 <br />+0.680 <br /> <br />-7.725. <br /> <br />C.R.B. <br /> <br />4,400 <br />'9,600 <br />+0.700 <br />-'-0.800 <br />'0 <br /> <br />9.500 <br />* <br /> <br />-.1.200 <br />-1.500 <br /> <br />.6.S00 <br />+0.200 <br /> <br />47.000 <br /> <br />U.S.D.!. <br /> <br />4,550 <br />19,300 <br />+0.600 <br />-0.865 <br />+0.315 <br /> <br />.9.350 <br />+0.055 <br /> <br />-1.270 <br />-1. 500 <br /> <br />6.635 <br />+0.680 <br /> <br />7.315 <br /> <br />1985 <br /> <br />C.R.B. <br /> <br />5,200 <br />28,800 <br />+0.600 <br />-0.800 <br />'0 <br /> <br />8.600 <br />* <br /> <br />-1.200 <br />-1.500 <br /> <br />5.900 <br />+0.200 <br /> <br />46.100 <br /> <br />U,S.D.!. <br /> <br />4,900 <br />19,100 <br />+0.590 <br />-0.850 <br />+0.350 <br /> <br />9.i90 <br />+0.055 <br /> <br />-1.270 <br />-1.500 <br /> <br />6.475 <br />+0.680 <br /> <br />7.155 <br /> <br />1990 <br /> <br />C.R.B. <br /> <br />5,400 <br />28,600 <br />+0.600 <br />-0.800 <br />'0 <br /> <br />8 .400 <br />. <br /> <br />-1.200 <br />-1.500 <br /> <br />5.700 <br />+0.200 <br /> <br />45.900 <br /> <br />U.S.D.!. <br /> <br />5,430 <br />18,600 <br />+0.570 <br />-0.830 <br />+0.375 <br /> <br />8.715 <br />+0.055 <br /> <br />-1.270 <br />-1.500 <br /> <br />6.000 <br />+0.680 <br /> <br />6.680 <br /> <br />2000 <br /> <br />C.R.B. <br /> <br />5,700 <br />38,300 <br />+0.600 <br />c.O.800 <br />'0 <br /> <br />8.100 <br />* <br /> <br />-1.200 <br />-1.500 <br /> <br />5 .400 <br />+0.200 <br /> <br />45.600 <br /> <br />U.S.DI. <br /> <br />5,SQO <br />18,250 <br />+0.510 <br />-0.8:)0 <br />+0.3:15 <br /> <br />8.3:15 <br />+0.01i5 <br /> <br />-1.2i'O <br />-1.5(10 <br /> <br />5.6W <br />+0.6;0 <br /> <br />6.330 <br /> <br />2030 <br /> <br />C.R.B. <br /> <br />5;800 <br />'8,200 <br />+0.600 <br />-0.800 <br />'0 <br /> <br />8.000 <br />* <br /> <br />-1.200 <br />- 1. 500 <br /> <br />.5.300 <br />+0.200 <br /> <br />45.500" <br /> <br />. Included in "Net losses-Hoover Dam to Mexico. .." entry. 8/1:1/64 <br />t Senate Subcommittee Hearings on Central Arizona Projec~ and Discussion of Pacific Southwest Water Plan, 88th Congress. p. 468 and Table 16A in January 1964 -~eport on Pacific Southwest Water <br />Plan. " ." - . .:. - - .' : - <br />1 Based on Colorado storage project reservoir drawdo~ and 1930-62 runpff period.. . ~ .. <br />I Based on 14.0 million acre~feet dependable annual YIeld at Lee Ferry. Figures shown are 14.0 lDlnus figures li.hne 1. <br />I No drawdown shown because a closed cycle is ass"umed, i.e. same storage at beginning wd end of selected .peJiod.. ~. . ... 'II..... _ <br />. As indicated in note 2, the C.R.B. figures are based on 14.0 dependable yield. The 1922-64 a.vg. a.nnual vrrg1p. flpw 18 13.7-13,8 which means the 14.0 figure ls.on the..optimistIc slde_and to have these <br />amounts for Lower Basin use means that 0.2 or 0.3 more-salvage would be needed over the amount shown ill ilie 2. <br /> <br />c::> <br />CJ <br />N <br />CJ <br />W <br />,;.) <br /> <br />>- <br />~ <br />~ <br />:'l <br />~ <br />t< <br />I;;J <br />o <br />" <br />~ <br /> <br />I>- <br />& <br />'0 <br />>- <br />n <br />~ <br />.'0 <br />~ <br />n <br />fB <br />c1 <br />'" <br />p:: <br />:is <br />i1'i <br />~ <br />:is <br />.11- <br />'" <br />0; <br />" <br />;g <br />g <br />t;j <br />~ <br /> <br />Co> <br /><:11 <br />