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February 2005 Excavation <br /> Confirmation Samples [nd] <br /> North South <br /> Mw105 Mw4/ <br /> Mw5 Mw4B E134 B11 B7 <br /> .............- ................. . ......... <br /> Fill Silty Clay Silty Clay <br /> 5 ........................ <br /> ' —� <br /> Silty Clay <br /> 7F <br /> Med. Sand <br /> nd V <br /> 10. <215. rdT 1.7 <br /> Med. Sand F Med. Sand <br /> Silty Clay <br /> 15 nd nd <br /> 20 nd nd Silty Clay <br /> (nd) (nd) ---------------------------------- <br /> 25 Silty Clay <br /> 30 nd Med. Sand <br /> 35 0 20 40 60 <br /> Med. Sand feet <br /> 0 40 nd(nd) Xylene Concentrations <br /> 45 Soil ug/kg <br /> Pre Excavation Contamintation Contours ------- Water(ug/1) 4/13/06 <br /> 50 Post Excavation Contarnintation Contours <br /> Figure 22 Pornbo Ranch <br /> North to South Xylene Cross Section <br />