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<br />OD23J1 <br /> <br />-4- <br /> <br />Article B -- IRRIGATION <br /> <br />.. <br /> <br />The next point we wish to establish is the manner in which the loca.l <br />economy of the Gunnison Basin is tied in with the consumptive use of water. <br />,liost r.\embers of this committee are familiar with the Gunnison Tunnel and the <br />Uncoffipahgre Project. The major portion of the water supply for the Uncom- <br />pahgre Project comes from the Gunnison River. During the month of September, <br />the most critical r.\onch in irrigation, 86 per cent of the water for the Un- <br />compahgre Project comes tI1rOUC'.h the Gunnison Tunnel. The Gunnison Tunnel has <br />a decree for 1300 secon~ feet of water, but can carry only I,OOO second feet <br />of water due to the fact that a portion of it is not lined. Generally, it is <br />assumed that there is plenty of water in the Gunnison River to fill the Gunni- <br />son Tunnel during the entire irrigation season. This is not tme. Many people <br />in the area talk about the disastrous crop years before Taylor lieservoir above <br />the Gunnison was built to make more <later available for use to the Gunnison <br />Tunnel. However, even hith Taylor Reservoir there are considerable periods in <br />each irrigation sea~on ~hen the tunnel is not supplied a thousand second feet <br />of water. I.e took an extensive test on water available at the Gunnison Tunnel <br />over a six year period. The actual deficiency in delivering 1,000 cubic feet <br />of water each year for the days of September under test is shovm in the follow- <br />ing chart: <br /> <br /> 1947 1945 1944 <br />Sept. Def-cfs Sept. Def-cfs s~~t. Def-cfs <br />23 46 25 139 180 <br />24 119 26 230 2b 148 <br />25 23tl 27 220 27 14tl <br />26 136 2tl 210 2tJ 221 <br />27 55 29 156 29 251 <br />2tl -0- 30 117 30 281 <br /> <br /> 1943 1942 1%1 <br />. Sept. !.lef -cfs Oiept. lJel-cls ~ept. lJel-cls <br /> 6 -0- 25 302 25 136 <br /> 7 -0- 2b 320 26 201 <br /> :) -0- 27 3LJS 27 235 <br /> 9 -(-- 2Ci 344 20 280 <br /> 10 -0-;- 29 32tJ 29 232 <br /> 11 ~c- 30 373 30 115 <br />