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<br />. <br /> <br />. <br /> <br />N <br />~ <br />W <br />o <br /> <br />levels will be down about 30 feet at San Luis, 20 feet at Gadsden" nnd <br /> <br />10 feet at Somerton. <br /> <br />The Bureau of Reclamation is very aware and concerned with the potential <br /> <br />problem associated with a ground water drawdown. With due consi deration <br />for all the water users affected and within the guidelines of our statutory <br />responsibilities, we are investigating the significance of long-term impacts <br /> <br />the drawdown may have on the i ndi vi dua 1 1 andowner, and to the enti re area <br /> <br />that eventually will be affected. <br /> <br />Another impact of drawdown is that approximately 60 miles of open <br />agricultural drains in the Yuma Valley will eventually become inactive as <br />a result of lowering the ground water elevation. Although drawdown will <br />benefit high water table areas in Yuma Valley, lowering of the water table <br />may require application of more irrigation water for certain deep-rooted <br /> <br />crops. <br /> <br />Lowering of the water table in the Yuma Valley and the cessation of <br /> <br />sustained flows in the Colorado River below More1os Dam will reduce <br /> <br />wildlife habitat in that area. In an effort to evaluate these losses, <br />the Bureau of Reclamation has contracted with several staff members of <br /> <br />Arizona ,State University for a complete inventory of these existing <br /> <br />resources. The studi es have been camp 1 eted and the reports wi 11 be <br /> <br />9 <br /> <br />-;,<-5,:. <br /> <br />,". _ C'i~._/_.,_\:- <br /> <br /> <br />,<; <br /> <br />