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Page 9 TL 686-141-00 <br /> 7 . 1 The soil beneath the under.;ground transformer oil <br /> 4 <br /> storage tank does not appear to be contaminated with <br /> PCB , <br /> 7 . 2 The surf ace soil samples collected from beneath the <br /> areas of discolored baserock contains detectable <br /> concentrations of PCB. However , the PCB concentrations <br /> I� <br /> are not' high enough to be classified as hazardous . <br /> 8 . 0 RECOMMENDATIONS <br /> The following recommendations are submitted for your <br /> consideration. <br /> 8 . 1 The soils beneath the underground transformer oil <br /> storage tank should be visual.ly examined for signs of <br /> contamination immediately after removal of the storage <br /> tank. <br /> 8 . 2 Soil samples should be obtained from beneath the <br /> underground storage transformer oil storage tank and <br /> analyzed for the presence and concentration of PCB and <br /> oil and grease in order to 'confirm that the soils <br /> � <br /> beneath the storage tank havIe not been contaminated <br /> with PCB or transformer oil . <br /> Fresno Modesto Visalia Bakersfield <br /> F <br />