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February 2005 Excavation <br /> Nofth Confirmation Samples [nd] South <br /> MW105 MvA/ <br /> Mw5 MvAB EB4 B11 B7 <br /> ................. F.i-I I.-.-........... ................................. Silty Clay Silty Clay <br /> 5 ........ ............... ............... <br /> ------ ----1)01 . <br /> Silty Clay 11300.iri bw- ............. <br /> 8 380 Med. Sand <br /> 10 <br /> .......... n Med. Sand <br /> nd V <br /> Med. Sand Silty Clay <br /> Si <br /> M e d. <br /> nd nd <br /> 151 n nd <br /> 20 Silty Clay <br /> nd nd <br /> (nd) (nd) ------------------ <br /> 25 Silty Clay ------------- <br /> ..... ......... ... ............ <br /> 30 'nd Med. Sand <br /> 35 Silty Cla 0 20 40 60 <br /> Med. Sand feet <br /> 0 Ind <br /> (nd) Ethyl Benzene Concentrations <br /> 45 Soil ug/kg <br /> Water(ug/1) 4/13/06 <br /> Pre Excavation Contamintation Contours ------- <br /> 50 <br /> Post Excavation Contarnintation, Contours <br /> Figure18 Pornbo Ranch <br /> North to South Ethyl Benzene Cross Section , <br />