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<br />n:1l141
<br />
<br />MEAN ANNUAL RUNOFF (Inches)
<br />
<br />FIGURE 23
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<br />of ....alel lur fulure dl.'vdllpmClllS, the Imlon.:.al ~trc~Hl\'
<br />no..... re~urds must be Jdiu~ltJ 1m pfO~rCSS1\ie Jcwlnp.
<br />111('/11\ 3nJ WJh~1 Ul>C. As r.hllwn In figure ~5 streamllow
<br />JcpletltHlS 1~'sultil1!! hum ~on~l1lrl1n' u~s a\era~ed
<br />abuut 1.3 nlllhon Joe.fect annuall~ by 110\90 ;md
<br />m~'lcJ....d W 5.t1 milluJn Jdc.feel b~ ]'110, DUling the
<br />[!efllld 1'110 I" Il./-I<J dc'pll'lllln,;. fUlther llh:n'a\l.'d by 13
<br />10 tl.4 lt1lll,un 3.:r....leel, and 0\.'........<'11 1<./4'" ,UHJ IIno
<br />ltw~ expanded Jfil,tIH'! -I.'i llllJ1inn Il' a lout III 11 7
<br />111I111\llla..:re.'...et.
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<br />In (llrrc.:lllIg 101 slIdl U~~ it IS esllmJlcJ that thl'
<br />11lslMI.:al .l\crJg~ Jnnual '''~alllll,,~ 01 )t:<.7 million
<br />ade.I('~1 ~ll\lld b(' n'du~-ed hI ab,lul 536 mil1wn
<br />a..:r('.le('\ IIndef the !4iQ Ir\c1 ..,' ....all.r ,,:olllrlll and
<br />utlll/all.m ('untllbulhms III ~trcall1tll1~ Val) .:on.
<br />s:lderjhl~ IhrouJo!hnUI Ihe basin. JS IllI[l.hl be t"\pe..:ted
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<br />~l1h a v3flablc pJttCIIl 01 annual pre":lpllilllOIl and
<br />runoff ~'ornbin<'d ~l1h a \'arlablc IIllcnsily (If ~JIC'
<br />lI1tluallOn and de\t'!.'prncnI I able ~5 "ho....., Ihe ..:onll1'
<br />buulln 1\' 'trealllllo~ by suhhaslIl' under Itl<' 1970 k\'el
<br />of ~aler de.......lopllle-llI and uIlII/allor1- :\1 Ihe 1'170 kwl
<br />('1' dc\c1oprncl1t there are sn maio' and ab,)\It 10 lesser
<br />pHIJe..:!, ....Illd\ llllpt'rt Colorado River ....aters III the-
<br />Plalle'\;llJbr:lla Subba,u1. and one olher impo.1T1s St.
<br />\IJr~ Rl\e-I watl'l tu Ihe \!ilk River in lill' Uprer
<br />\h'iMIUrL Suhba"n C"I.Had" RIVe-1 ~ atel is u~d fm Ihe
<br />most part III norlhCasll.'lll C<llmado. bUI tll ,,-Jllle ex lent
<br />III W~ liming. and a\'l'rage annual .tl\elswns af(. ab,lul
<br />~07.000 a"c.le-el. fhe:- SI. \I31}".\lIlk Rlwr lrnpurlatt\ln
<br />a\ela[l.e-, al'hllll 13).c100 3.:rl'.leel Su~-h unporlauons
<br />repr(''>C'nl aJdlll"ns 10 the ....:iIIler h~S<lur.:es of the
<br />\hss~'url RIver lJa,1l1 and all~ ml~ dedi':3teJ 10 s~dlk
<br />u~s 11\11 pllSSiblc ~lth the 113m-e "'<lle:-r supply.
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