|
<br />001455
<br />
<br />-23-
<br />
<br />.'
<br />
<br />River Compact upcn the States cf the Upper Division, it follows that the
<br />said initial list of Upper Basin projects can be authorized and construct-
<br />ed without danger of violating the said delivery obligation, and without
<br />requiring the construction of any of the potential main-stem po~er, regula-
<br />tion or replacement reservoirs listed in the Report. Colorado suggests
<br />that the Report be amended to im lude the analyses and c onunent s above out-
<br />lined. In connection with said initial list of projeots, it should be
<br />noted that Colorado has approved the plans of the Little Snake Project only
<br />to that first stage of its development which is presently needed, and can-
<br />not now approve the plan for full or ultimate development; and Colorado
<br />suggests that the potential San Juan-Chama diversion project be excluded
<br />from said initial list of projects and not be considered until such time
<br />as investigations permit selections to be made by New Mexico; and that an
<br />agreement with Colorado will be necessary at that time.
<br />
<br />41. Total depletions of all potential Upper Basin irrigation projects
<br />listed in the Report are estimated therein at 1,851,000 acre feet annually.
<br />Independent estimates by Colorado engineers arrive at substantially the
<br />same total for the entire Upper Basin, but disclose rather wide discrep-
<br />ancies when the estimated depletions are segregated by States, as indicat-
<br />ed in the following table.
<br />
<br />Estimated Depletions of
<br />Potential Upper Basin_ Irrigation
<br />projects Listed in Report
<br />
<br />Acres Benefited
<br />
<br />New Supple-
<br />Lands mental Total
<br />
<br />Est. Deple::~~
<br />
<br />Ac re Feet
<br />U.S.B.R. C.W.C.B.
<br />
<br />Ar iz ona
<br />Colorado
<br />New Nexico
<br />Utah
<br />Hyoming
<br />
<br />18,680
<br />471,300
<br />lle ,960
<br />168,780
<br />2'.n . 330
<br />
<br />6,000
<br />192,700
<br />15,100
<br />161,160
<br />95,360
<br />
<br />24,680
<br />664,000
<br />165,060
<br />329,940
<br />386,690
<br />
<br />39,000
<br />918 ,000
<br />300 ,000
<br />ffi8,000
<br />298,000
<br />
<br />39,000
<br />788,.000
<br />291,000
<br />319,000
<br />422,000
<br />
<br />.
<br />,
<br />
<br />Upper Basin Totals 1,100,050 470,320
<br />
<br />1,570,370
<br />
<br />1,851,000 1,859,000
<br />
<br />.'
<br />
<br />Unit rates employed qy the Bureau of Reclamation in estimating
<br />the depletions of potential projects are not disclosed in the Report. Es-
<br />timates of Coloradc engineers are based on rates believed to be api'lioa-
<br />ble under the natural conditions prevailing in the Upper Basin and the
<br />States thereof. Colorado suggests that details of depletion calculations
<br />should appear in the Report; and says that the above depletions do not
<br />fully reflect all the opportunities and possibilities for future develop-
<br />ment in Colorado, and probably in other States of the Upper Division, that
<br />are to be anticipated in the next several decades. In addition to exist-
<br />ing depletions of lands irrigate d in the Upper Basin, to the allowances
<br />for future depletions by projects now authorized or under construction,
<br />
|