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<br />--- <br /> <br />,'t <br /> <br />, , <br /> <br />. <br /> <br />Hardl 10, 1973 <br /> <br />ADDEXDilll <br /> <br />During the eonferenee in Washington February 12, 1973, it was <br />suggested thut u line of closely spaced ,,'ells north o.f the Arizonu- <br />Sonora boundary might provide a more effective reduction of <br />grounchla tcr flow and require less total pumpage. Another well <br />field layout ,\as preparecl by the Yurru proj e9ts Office, DureBU of <br />Reclamation and, is shmm on Figure B-lIl. This second "ell field <br />layout envisions the location of 25 wells about one mile north <br />of the Arizona-Sonora boundary at approximately one-half mile <br />intervals along a 12-lllile alignment. The proposed Unitcd states <br />pumping regimen would comprise ,.,i thdrcnml of ground,.;a tel' as <br />follows: 100,000 AF/yr from 25 miles along tlle boundary; <br />50,000 AF/yr from 10 ",ells in YUl!la "alley (same location, Pumping <br />Regimens Nos. 1, 2, and 3); and 60,000 AP/yr frolll 12 Yuma Hesa <br />"Iells, for a total llumpage of 210,000 AP/yr. <br /> <br />The singular effects of this alternate dcsign of well field <br />in Uni tcd states ill combination with the SOIlOl'L], !-lesa "ells <br />(160,00'0 j\F/yr) 'iere determined ,l'ith additional analog model <br />runs b'y the U. S. Geological Survey (Table 3, Huns 114 and 115). <br />'fl18 revie"1 of signiJicant rcsul ts of these studies folloh's. <br /> <br />~ <br />