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<br />001364 <br /> <br /> <br />PLANNED PUMPING SYSTEM NOT IN USE AT START OF IRRIGATION SEASON <br /> <br /> <br />Water Being' Pumped to Supplement <br />Surface Supply fo Downstream <br /> <br />,~r - Canals ~ <br /> <br />PLANNED PUMPING SYSTEM IN JULY <br /> <br /> <br />Effect of Wells on River Is <br />Great Only After Irrigation <br /> <br /> <br />\aoo <br /> <br />PLANNED PUMPING SYSTEM AT END OF IRRIGATION SYSTEM <br /> <br />As noted in these diagrams, a battery of wells could be so located <br />with respect to the river so that by pumping through the irrigation <br />season they would create cones of depression which would not greatly <br />affect the river until after the end of the irrigation season. This <br />water could be delivered into a small lined canal for transport to <br />the next surface diversion. The cones of depr~ssion would lower the <br />water table to prevent direct evaporation from the soil surface and <br />make it easier to control phreatophytes. Then during the winter, <br />