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<br />f~~::?< <br /> <br />with drainage development might make for an inoreased f'low at the state <br /> <br />line. <br /> <br />The stream flow reoords indicate tha't frOlll 1890 1;0 1934, <br /> <br />inclusive, the average annual water production in the San Luis Valley <br />was about 1,560,000 aore f'eet, about 240,000 acre feet of 1Ihi.oh originate <br /> <br />in the so-called Closed Basin, and about 1,320,000 acre feet originate <br /> <br />in 'the Live Area. Consumptive use studies conduoted by the state <br />indicate that the consumptive use in the San Luis Valley, by lands that <br /> <br />are artifioia11y drained, is about 1.2 acre feet per acre. Ass~ <br />550,000 aores of land to be irrigated in the region, about 76tJ,OOO aore <br />f'est of water per &m1um is benefioially oonsumed. Depletion studies <br /> <br />indicate tha't the mean annual flow at the state line, under present <br />conditions of development for a period such as 1890 to 1934, would be <br />about 470,000 acre feet. Therefore, of the 1,560,000 acre feet of total <br /> <br />water production in the Valley, 1,230,000 acre feet are acoounted f'or by <br /> <br />beneficial consumptive use, end outflow across the state line, leaving <br /> <br />330,000 aere f'eet of water that is non-benefioially consumed, a portion <br /> <br />of which would be recoverable by drainage oonstruction. A portion of' <br /> <br />the undue consumption results from the method of irrigation that it is <br /> <br />neoessary to practice in the San Luis Valley, due to the lack of proper <br /> <br />storage f'aoili1:ies to make the flow parallel with the demand. It is on <br /> <br />account of the above facts that ii; has been felt that provision of proper <br />storage faoilities in the San Luis Valley, coupled with necessary drainage <br /> <br />consi;ruction would not result in increased consumption of water in the <br /> <br />Valley. <br /> <br />- 5 - <br /> <br />~ " <br />f., <br />0. <br /> <br />r. ~ ' """ <br /><..V <br />