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<br />82 fO. '72cl
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<br />COirn n.'J;:t~ I}>. L
<br />iP~ C010~~90 ~r~~A~-CONSER'~A'1'I0lJ
<br />---------nl"S'T'QlC-r----- ----~-
<br />
<br />~~f J'g~llr.C~J:i.tl.i_c:.!!
<br />f-v f~o~ccts Fronosed in t~~
<br />Mo;;d:)Eas.in -;f;;oort of the
<br />Eureau of RAclamation on ~ater
<br />~t!JJ 'pry by St~tes at lee Ferrv
<br />
<br />~ra~1 Junctiop, Colo.
<br />8 :torch 1946.
<br />
<br />fractically the only .~ater supply data in the ,",..asio ::oeport are contained in
<br />J..ppe,l'l.Jix I, page 368. Tables of stream flow' at vartous st'l.tions in the several
<br />divisions are included in descriptions of the divisions, but th~se consist of re-
<br />cords of widely v~rying lengths, rarely coincident, and additional data and much
<br />study are'ne~~d to reduce them to comp~r3cle values usable to compute outflow by
<br />states. Historic.!)] em] virgin fJems of ColoMdo ri ver at Lee Ferry are shown in
<br />Appendix I, follo~cd by an analysis of flow from Lee F~rry to International Bound-
<br />ary, based on the derived Lee Fer~"Y flow, which extends fco!!!. 1897 to 1943. Since
<br />actual :neasurcr-if:!nt at Lee Ferry dates only from 1921 the rest of the tabulation
<br />has been built up fron earlier records of stations above Or below or by other
<br />methods., There is little pertinent record of v.due before 1904..
<br />
<br />Stream "aging by the United States Geolofdc.lll Su:-vey was started in 1889 and
<br />h.lls gro~n unsteadily in scope and importance since that time.. A somewhat system'~
<br />atical beginning was md~e about 1904, but records using ~odern techniques, in-
<br />tend~d to afford a permanent survey of water resource date from about 1914.. Key
<br />stations in tht~ ur~er basin h~ve reco~ds from about 1914, ;1hich are a sounder be
<br />sis for study ~han the extension of t~e Lee Ferry record back to even that date..
<br />,
<br />
<br />Since th~l l:.asin r~port is very ins:.str>nt upon a quitei:"lffiodiate divsion of
<br />thf! water allotted to :ill the Uf"lper basi n stfl,tes by thP. Color'\do River Compact,
<br />betw~en those st~tes, nnd l~cause the l~r~ numc~r of pro~ect9 proposed for both
<br />ur~r I'\nd lowo!;' bRsins s~er!ls to ci'tll for more w;\t"r thAn the river 'rill provide,
<br />it is unfortun'\te thnt th~ revort docs not cont~in an an'\1ysis of pl~cp.s of o~g-
<br />in in th(: upper' bflsin ncr of the p.fl'ect of proros~d fI1iddle river storage, if such
<br />5h<111 be its flf.f,'ct, in ~mking un some of th" doticiency th~t the co:r.plete pro-
<br />p:r~r:l outlined would se.?IJ1 to CAuse.
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<br />For the p~r~ose of this study it js ororosed to I'\ccept the dfrived or actUAl
<br />flow at Lee F~r-r:." sholOO in th.~ b-'lsin rcrort, for R. Fcriod of 30 Y.~!lrs extending
<br />from lQ]f.; to lQ/~J.. ll:.. c"n th '0 be m.,d,~ of existi~Y key r.-,cords in the upper ba-
<br />sin to p.:>rmit thp nCul'..;st :1.I'Irro.x.i..n:'ltion of no... fro!!! e...ch of the urpcr basin
<br />stnt~s thAt c"n nc,\\' 'toe c11cuhted. ). mor; accur~t,e accounting of flow from each
<br />of the stAtes, sae~ncly nn indispensibl~ prerequisite to allocl'\ting water among
<br />t~ler., ...c~1l re":lt;i':"e J:'l."'ny ne.... ~af,in;: s~1tio:".s .:lr:::! r~:';ods of T.€'cord ..,t sitch sta-
<br />tions sufficiBnt to insFire c~nfi~ence in v~nt su~h r~cords AilI disclose..
<br />
<br />Put bluntly, del'initl.1 allottment of w:!tClr to ;>~ch of the urt)l~r bRsin sl.lltes
<br />will consist in L~~' concession bv Colcr"'!do that th e oth.-~r sVt ~s oay use 85 great
<br />1. pArt of t.he ;...:lt~r lht:!J' origin~te "'S th~y C'Ul contdve, lcl\ving C()lorll.do to roke
<br />good th~ d~m~nd or th~ Color"'do Rive':" ComD~ct. for delivery at Lee Ferry.. In fact,
<br />in S0:10 crtses this ~on(:ession will ext-=nd' to 1ctu"!1 ,1eli vt.!ry by Colo:'flGO oi t.hQ.
<br />W'ltcr \,ith ....'hich ,th.~ oth,~r st:--tC's p:-Ollose to m"lkC thcir i....n'~C'fA'I...~t.5, leaving
<br />than debtors to th3 riv.~r, m"king no, ddi...er:! 1t .:111 ..t. L,~" rerry: It.. C3n hardly
<br />be seriously exp:~ct0d tb;,>.t IAl.Jr,do will join in anj' such :'"'.rocc.:1dl.n~, unless ond
<br />.m-".il b'\si: dat:l f"re 71.11 i:1. !;~nd '\oj well l.uthp.!1tic...ted ..nd not t,hen unl<;!ss the
<br />othet- stat.es of tne upj)<'-'r basin intend to propose SItch conpcnsf.tion for Colorado
<br />1.5 will ju::>ttfy th"l.t ct.~t(. in 't.hp. pt)~..iHHl'y nf f0~'egoin..~ its O'r'ln oevelopnent,
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