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<br />involved in the caloulations be given in the Report.
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<br />36. Directing attention next to so-oalled "depletion allowances,"
<br />the Report allows for future depletions in the Upper Basin of 491,000
<br />acre feet annually, by projeots under oonstruction but not oompleted.
<br />and by projects authorized but not construoted; and allows for future
<br />depletions in the LoI'o6l:" Basin of 4,205.200 ac['e feet annually, by the
<br />"il:"rigable" lands of existing projects not heretofore or now irrigated.
<br />Both allowance quanti ties appear to be based on long-time average or
<br />normal conditions. Allowanoes in the Upper Basin a['e reported by indi v-
<br />idual projects, as followSl 38,000 aore feet of export diversions by
<br />frovo projeot under construction in Utah; 29.000 acre feet of depletions
<br />by 20,000 acres to be irrigated ~ Eden project under construction in
<br />Hyoming; 4,000 aore feet of depletions by 2,000 acres of new land to be
<br />irrigated by Paonia project authorized far oonstruction in Colorado;
<br />320,000 aCre feet of export diversions by Colorado-Big Thompson project
<br />under construction in Colorado; and 100,000 aore feet of export diver-
<br />sions fOl:" City of Denver by projeot now partially developed. Data for
<br />the Bancos Projeot (now under construction) was not given. Allowances
<br />in the Lowel:" Basin are not listed by individual projects, but are re-
<br />ported as a total 01 4,265.200 acre feet for the future irrigation of
<br />579.000 acres of "irrigable" land in Arizona and California, in connec-
<br />tion with proj eots Ii sted at page 237 of the Report that are said to
<br />have irrigated 540,000 acres in 1943, all in the Bouldel:" Division. Seg-
<br />regations of the total Lower Basin allowance (by Colorado engineers) in-
<br />dicate that the Report allows 1,000,700 aore feet of depletions for the
<br />future irrigation of 239.000 aores of "irrigable" lands in Arizona, in
<br />connection with projects said to have irrigated 77,900 acres in 1943; and
<br />allows 3,264,500 acre feet for the future irrigation of 342,100 acres of
<br />"irrigable" land in California" in connection with projects said to, have
<br />irrigated 460,900 aores in 1943. The allol'<Wlces for future depletions' in
<br />ooth basins are treated in the Report a.s "present" depletions, and are
<br />sl,UJllllariz,ed and, combined with the existing depletions he['einbefore dis-
<br />cussed., Colorado s,uggests that allowances for future depletions should
<br />be sl,UJllllarized separately from existing depletions, shOUld be estimated
<br />tmder definitions that. are uniformly applicable to both basins and all,
<br />States alike.
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<br />37. For purposes of thi s discussion the following table has been
<br />prepared by adding the depletion allowanoes of the Report to the exist-
<br />ing depletions, to indioate the conditions and relations that would pre~
<br />vail after all p['ojects for which allowances al:"e made come into oper- ..
<br />ation, assuming that in the meantime no other potential projects are ci~:n-
<br />struoted. '", ,
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