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<br />the period 1 August to 1 October, a m1nimum of 1,500,000 acre-feet of
<br />flood-control storage space IllUst be available in Lake Mead to control
<br />rainfall floods. This reduction of 1,000,000 acre-reet in the require-
<br />ments under Debler's plai1 vas derived from detailed studies that in-
<br />cluded the effects of Lake Powell and other upstre8111 reservoirs. The
<br />summer standard project rain flood could be controlled, assuming
<br />1,500,000 acre-feet of storage space in Lake Mead, to a _x1mum vater
<br />aurface or 1,222. ,~;1;}",ll ""o~H'lowo'of 29,000 cubic feet
<br />- ." ~ "'"'_ ,-' '~'_'" "_',C ~- "_ -'_ _, '. '
<br />per second. ",t "!o'~":o' ;" "~'"!~!Il'''
<br />"'{};~~'if.{'~'f\,,'~"--,,~~~;';':;+',~:'~i;';/Jt'::_~~;j' ~. <'\-'';';'.:Y, ::. - ~
<br />
<br />
<br />22. Lake Mead.--The follOWing table specifies the m1n1lll1D1 t'lood
<br />control storage space necessary fa the dates shown under the current
<br />operation plan. In attaining these storages, releases frOll Lake Mead
<br />are restricted to q\l&l1tities that will not cauae a flow in excess ot'
<br />40,000 cubic teet par second at the gaging station, Colorado River
<br />below Davis Dsa, insot'ar as posa1b1e. Furthermore, care is elClllrcbed
<br />to avoid dangerously rapid changes in the _gni tudes ot' releases.
<br />
<br /> Min1auD. t'lood-: :
<br />Date control storage .. Date
<br />space below ..
<br /> ..
<br /> elevation 1.229 ..
<br />
<br />1 August.......:
<br />1 September....:
<br />1 October......:
<br />
<br />Acre-teet . .
<br />1,500,000 .. 1 November.....:
<br />1,500,000 .. 1 December.....:
<br />1,500,000 .. 1 January......:
<br />
<br />Min1a1Dl t'lood-
<br />control storage
<br />space below
<br />elevation 1,229
<br />
<br />Acre-feet
<br />2,675,000
<br />3,963,000
<br />. 5,350,000,
<br />
<br />23. Upstream reservoirs.--The _ximum creditable storage apace
<br />in upatreaa reservoirs tor the period 1 Novelllber through 1 January,
<br />is as t'ollows:
<br />
<br />Reservoir
<br />
<br />Creditable storage space
<br />
<br />I.ke PCJllell...........................................:
<br />Navajo. . . .. . .. . .. . . .. .. .. . .. . .. .. . .. . .. .. .. . .. .. .. . . .. :
<br />Bll.le 1lIe8a........".................................:
<br />FlamJ.ns Gorge................................... :
<br />
<br />Acre-t'eet
<br />3,850,000
<br />1,036,100
<br />748,500
<br />1,507,200
<br />
<br />However, in a situation where upstream credita are being applied, Lake
<br />Mead IIIISt have not less than 1,500,000 acre-feet of available space, 88
<br />mentioned in the preceding paragraph.
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