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<br />Reservoir now under construction. The quality of water delivered to <br /> <br /> <br />Mexico at Morelos Dam will be comparable to that delivered as a <br /> <br /> <br />result of Phase 2 construction. <br /> <br /> <br />As a supplemental and additional plan, a change in cropping <br /> <br /> <br />pattern from alfalfa, Bermuda grass, etc., to cotton on 30,000 to <br /> <br /> <br />35,000 acres in the Wellton-~~hawk District would materially reduce <br /> <br /> <br />the aIOOunt of water applied and also the amount of drainage water to <br /> <br /> <br />be evacuated. This change in cropping pattern would make more con- <br /> <br /> <br />venient and more effective an illDllediate improvement in the quality <br /> <br /> <br />of water to be delivered to Mexico during the critical winter months <br /> <br /> <br />of 1963 in the event there might be some delay in completion of the <br /> <br /> <br />construction proposed in Phase 1. In conjunction with immediate <br /> <br /> <br />construction of Phase 1 features, such a cropping pattern would be <br /> <br /> <br />of material assistance in ~roving the quality of water delivered <br /> <br /> <br />to Mexico in the winter months of 1963 and following years. <br /> <br /> <br />At the present stage of the investigations, it does not appear <br /> <br /> <br />that Wellton Mesa drainage water can be collected in tile drains <br /> <br /> <br />and utilized for dilution of water delivered to Mexico in time to <br /> <br /> <br />be of material aid in the present problem. Apparently, the ground- <br /> <br /> <br />water levels are stabilizing in some areas beneath the mesa, and <br /> <br /> <br />part of the deep percolation waters are moving to the Wellton-Mohawk <br /> <br /> <br />aquifer. Further observations and investigations are needed before <br /> <br /> <br />the water table characteristics and future behavior can be forecast. <br /> <br />'1 <br /> <br />vi <br />