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ridge above and north of the Ridges Basin reservoir area. The <br />approximate limits of Borrow Area B which were effected by this <br />operation are shown on Drawing No. 69-406-1921. Most of the clay <br />overburden (Upper Eolian Clay).has been removed in this area <br />although some stockpiles of the material exist near the northeast <br />boundary of the borrow area (see Drawing No. 69-406-1921). <br />Approximately 20 to 30 vertical feet of terrace gravel deposits <br />have been removed from portions of Wheeler Pit exposing some <br />material and pit walls for direct inspection. <br />The following materials production data was obtained from <br />• Nielsons Inc. for the UMTRA project. The averages for percent <br />passing and production rates. were obtained from 20 randomly <br />selected contractorls-daily production reports. The on-site <br />project superintendent indicated the materials were produced from <br />• <br />pitrun material (Wheeler Pit) by dry processing (no crushing). <br />• <br />• <br />• <br />• <br />V,'2c° inuche Constniction <br />L'.0. Box AA - Towao ; CO E' <br />,tw?rnas Gc.ACiE2?6zgvEC? <br />• ,6-y-R tf!;, tT S- PA6E' S-2n 12 <br />y