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<br />']\\i\TER' SUPPLY.' FOR THE SAN JUAN-CHAMAPROJECT
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<br />that Colol'ado' projects should not haV:e to stand excessive shortages
<br />because NEiw Mexico,tries to stretch the water supply of Navajo
<br />Reservoir' too thin.': My own view is that, under the legislation"the
<br />Secretary is charged with the responsibility of not overburdening the
<br />Navajo Reservoir and he is prevented from entering into contracts
<br />in the future' which might result in excessive shortages. I believe
<br />that the distl:ictis adequately protected, Also, as hereinafter dis-
<br />cussed', in lii)' opinion, the limitation of N ewMexico uses by reason
<br />of its entitlement under the compacts would prevent the overburden-
<br />ing of'Navajo'Reservoir.,
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<br />Comments and conclusions--"New Mexico uses versus entitlement
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<br />".' HavingdeteriIlined the physical availability of water in the San
<br />JuariBasin, it then. becomes necessary to examine the relationship of
<br />the water physically available for use in New Mexico and New Mexi-
<br />co's entitlement to water under the upper Colorado River coinpacL
<br />There appears to be agreement between the Bureau of Reclamation
<br />and the State of New Mexico with respect to present and authorized
<br />us~s amounting to 275,100 acre-feet as follows: .
<br />
<br />:.~
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<br />.,(",.,
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<br />Thousand
<br />" ,,'. , , . . acr.e.,feet
<br />Present uses_ ____ n __ _ ___,___ c __ - cc- __ C n_ _____ n_ - __ - - - -_-- __ n_ n 92. 3
<br />Share' of 'evaporation'losses from main stem reservoirs_ _ _ _ _ _ _ _ ~'_ n _ _ _ _ n73, 3
<br />Hammond prdject_ _'__ _ ____ __ _ _c ___ ____ ____ n_____ ___ _ ______ ____ _ __ 6, 8
<br />.Extension,of lndian.landsc _ _ _ _ _ _ _ _ _ _ _ _ _ ___ _ _ _ __ _ __ _ _ _ _ _ _ _ _ _ _ __ _ n _ _ 24, 7
<br />Navajo Reservoir losses_ _ _'~ n _ _ _ _ _ _ _ _ _ _ _ __ _ _ c _ _ _ _ _ _ n _ _ _n c_ ___" _ _ _ 3.9. 0
<br />Utah Construction CO__n___________________c______________~_______ 39,0
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<br />Total by present and authorized projects _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___ _ _ _ _ 275, 1
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<br />With the addition of the depletion requirements for the Navajo
<br />Indian irrigation project (252,300 acre-feet) and the initial phase of
<br />the San JiIan-Chama project (110,000 acre-feet), New Mexico uses
<br />would be increased to 637,400 acre-feet. .
<br />New Mexico has indicated that part of its water would be used for
<br />the New Mexico portion of the Animas-La Plata project. The de-
<br />pletions by the New Mexico portion are estimated to be 34,100 acre-
<br />feet and the addition of this amount would raise New Mexico uses
<br />to an estimated 671,500 acre-feet.
<br />Hereinbefore I expressed the opinion that under presently existing
<br />flow conditions in the upper basin and without the authorization and
<br />construction of additional storage there is no assurance that New
<br />Mexico's entitlement to water will exceed 692,000 acre-feet annually.
<br />This would mean that, based upon the expected uses listed above,
<br />only about 20,000 acre-feet would remain for future New Mexico
<br />uses after development of the initial phase of the San Juan-Chama
<br />project, the Navajo Indian il'l'igation project, and the Animas-La
<br />Plata project.
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<br />A verage annual stream depletion
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<br />SUMMARY OF CONCLUSIONS
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<br />It is my conclusion that the long time flows physically available in
<br />the San Juan Basin are sufficient, with the regulation from storage in
<br />the Navajo Reservoir, to supply the requirements of potential devel-
<br />opments in Colorndo 1l,Il<Lthe water requirements of the initial phase
<br />of the San JUlln project fwd the Navajo Indian il'l'igation project
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