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<br /> <br /> <br /> <br />o <br />':'-"') <br /> <br />the Colorado River available for use in Colorado under pert,inent com- <br />pacts will be appropriated and consumed and, at that time, the amount <br />of this available water, which is utilized by synthetic liquid fuel plants <br />and their communities, will depend upon the rate of growth of the 81m.. <br />thetic liquid fuels industry and the perfecting of water rights for these <br />plants in relationship to the growth and pedecting of water rights for <br />other uses in accordance with the laws of the State of Colorado. " <br /> <br />...'",J <br /> <br />CJl <br /> <br />,", <br />\ ...' <br /> <br />-....J <br /> <br />Obviously, it was impossible to make a determination of a firm water <br />supply from Judge Stone~ statament without a definite program of pro- <br />liosed development, a procedu1'eto which he objected. <br /> <br />Ford. Bacon and Davis deCided that we should make a stUdy of the water <br />supply in the Upper Basin considering q,ll factors that would Gn:~0r into <br />- <br />a determination of the water that might be available for a synthet;.c fuel <br />program. Since the Engineering Advisory Committee of the Upper Colorado <br />Commiuion had prepared a report on the Water Supply of the Colorado <br />River Basin, that was studied 'first. . <br /> <br />The first factor that met our attention in the study of tItis report was the <br />object for its preparation asset forth in the following quotation: <br /> <br />"The object of this 1''''''? ort is to present the results of the stu.dy of the rates. <br />of water. consumption at sites of uSe by agricultural crops and native vegetation <br />in various irdgatedareas of 'Wyoming, Utah, ColoradO, New Mexico and <br />Arizona .in the Upper Basin. The use of water by all native vegetation in ~~e <br />Upper Basin is not important in the study requested by the Epg:!neer:!ng <br />Advisory Committee. The Committee is primarily concerned with the stream <br />depletion. as well as water consumption, resulting frotnirrigation and other <br />man-made developments. Estimates of consumptive use by forest and otller <br />native vegatation growing in mountain water-sheds have not been attempted. <br />However, water consumption by native vegetation growing in irrigated. val" <br />leys and along stream channels is considered important in t::1is repol't. " <br /> <br />It was evident from the abbve statement that the Committee did not intend <br />to go into any other action of man in the Basin other than the diversion of <br />water for irrigation. I cannot quite see the l'eason for this, as consump" <br />tive use was to be measured by the difference between inf'low and outflow <br />and certainly anything that affected outflow would be i,mportant., Si.nee it <br />is an established fact that the overgrazing of range lands and cutting of <br />timber as WE'll as the irrigation of land affects run off to a more or. less <br />degree. it was thought necessary to study everything that has been pub~ <br />lished on ~e effect of these three activities on the run off. The results <br />of our study is shown in the accompanying repor.t. -. - <br /> <br />. WhUe this J:nvestigaVi(m, Committee is interested only in Colo:l.'ado. I have <br />