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<br />~"3~:l3 <br /> <br />- 14 - <br /> <br />Even with increased supplies at Kersey these will be years of <br /> <br />deficient flows. <br /> <br />Also, the hundreds of wells in the valley intercept much of the return, <br />flows during the irrigation season and reduce the river flows available to <br />the decreed ditches. Of course, the pwmped water is put to beneficial use <br />but it is partly at the expense of users who do not have pumps and depend on <br />gravity supplies. <br />For example, during recent fairly nonnal years with from 500 to 600 C.E.S~, <br />at i[ersey during the winter storage months and with an additional return flow <br />of perhaps 300,"000 acre-feet, the six reservoir intakes in District One divert <br />around 1,800 acre-feet daily. Very little water passes Balzac. <br />In District Sixty-four with only Julesburg Reservoir diverting around <br />10,000 acre-feet, the return flows in the 75 mile stretch averages around <br /> <br />350 C.F.S. at Julesburg. <br /> <br />During the irrigation season, except.'in periods of high flows from <br /> <br />excess runoff on the upper tributaries, the Kersey discharge drops to as low <br />as 100 C.F.S. <br /> <br />The(;e~dth many of the junior ditches deprived of water on their <br /> <br />decrees the hundreds of pumps in the valley go into operation, interceptin!t< <br /> <br />much of the return flows and the supplies of the water users dependent on <br />river appropriation, which in earlier years were considered fairly reliable, <br />are further reduced. <br /> <br />Changing crop rotation programs of recent years require more late <br /> <br />season water for the more valuable row crops. <br /> <br />Host of this must come from storage supplies or from the wells. <br />Reservoir losses from seepage and evaporation in the valley are enormous <br />(as they are also in the upper tributary valleys). <br /> <br />,C <br /> <br /> <br /> <br /> <br />. <br /> <br />-"-'~.ol! '"' <br /> <br />~ -._=-',,'--. -~--~-.-~,_.--- <br /> <br />'" ~.-.;;; . ,:_."--~__..i._,-_j.. _,-;;";~_2-_ ,li.'k~;"~'-~~"'~'k-..,_~_~.;.k ~~i~~ ," <br /> <br />-~ -.: '" '.'" <br /> <br />.-,;;' <br />