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Task 3 Prepare Additional Investigation Report and <br /> Update Site Conceptual Model ;i f <br /> An Additional Investigation Report documenting the work performed, laboratory analytical reports, <br /> evaluation of the data collected, conclusions; and recommendations will be prepared. The report will <br /> include a well construction log of the new borings, lithological cross-sections, chemical iso-concentration <br /> maps forsoil and groundwater, updated site map and analytical laboratory results of soil and groundwater <br /> samples collected during the borehole investigation. �yT <br /> Ifou have an I <br /> Y y questions concerning the proposed scope of work costs please contact the undersigned <br /> at (925)460-5300. ll <br /> bl <br /> Respectfully submitted, !r' <br /> ATC ASSOCIATES INC. <br /> V <br /> Pl5 <br /> ter Kolodner Scott Perkins <br /> Project Manager Senior Project Manager <br /> �i <br /> �weA if <br /> David A. Evans, P.G. { <br /> CA Professional Geologist No. 8623 <br /> 5`014AL GFp - <br /> �9 CQ iT <br /> Oa `E <br /> 'd <br /> e oAvloaEvnrls <br /> a <br /> i <br /> Or CAL\FGQ2 n -li <br /> r !'I <br /> Attachments: If <br /> Ii <br /> Figure 1 —Proposed boring Location Map <br /> Regulatory Correspondence ;; <br /> ��y// - Additional Investigation Workplan <br /> V ,gill Qudc Stop No.132,Stockton,CA <br /> ,,...... 'Y! May 18,2009 <br /> S <br /> l <br /> I <br /> i <br />