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<br />0171 <br /> <br />. <br /> <br />Other problems associated with establishing recharge sites in areas <br /> <br />close to the river lie in attempting to locate the sites as far from <br /> <br />the river as possible and still be over the alluvial aquifer. Near <br /> <br />the alluvial boundaries, transmissivities are lowest and depth to <br />bedrock is shallowest. Furthermore, drain-out losses to the river <br /> <br />during the irrigation season is highest ~ these areas. The sites <br />that appear to be best suited for rec~:~~ essentially the lands <br />in test areas I. II, and Ill. It <,~~al~o.~~ these areas that water <br />(,:" , .'~ <br />levels are declining due to pumtage. ,.'., <br />('. oJ <br />/' ~>.J <br />It is estimated that abou~55,700 ~res would probably be affected to <br />/;'::;', V <br />c: > <br />some degree by the pro9:leni~' 'de}s:'ri bed above. Thi s amounts to about <br />"v <br />46 percent of the 1~390~~es which are to be benefited by the <br />recharge scheme. The ~ that is presented in this study, therefore, <br />is an optimistic one and closer investigation'may require that a percentage <br />of the acreage would have to be dropped from the recharge plan. <br /> <br />A lternati ves <br /> <br />New Facil ities <br /> <br />Based on the findings for the test areas, recharge requirements were <br />estimated for the remainder of the South Platte study area. Total <br />onfarm requirements amount to about 52,100 acre-feet and the total <br />. diversion requirement is about 81,800 acre-feet. A total of about <br />1,080 acres would be required for ponds or spreading areas. <br />