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DAMES MOOT`■ A PROFESSIONAL LIMITED PARTNERSHIP <br /> Pacific Gas&Flee ne Co: <br /> Page 4 <br /> the overexcavation of the tank pit;and directed that three soil samples be takenat the locations shown on Figure 2 <br /> 1 <br /> of this report.Soil samples were obtained�by the drive-tube method from:soils obtained in the excavator's bucket. <br /> A stainless steel tube was pushed into the sampled soils,and contained in the sample tube with plastic caps over <br /> r <br /> 1 teflon seals at each end. + <br /> i <br /> i <br /> j Upon retrieval,.samples retained for chemical analysis were.contained in'the sample sleeve by means of a plastic cap <br /> i <br /> over a teflon seal on each end of the sample'tube.The samples wereplaced into a cooler chest on"ice"under proper <br /> chain-of-custody'protocol for shipment to'the analytical laboratory. , <br /> RESULTS OF CHEMICAL ANALYSES <br /> Soil samples were transported to a.state-approved laboratory for chemical analyses.The laboratory.analyses was <br /> l <br /> focused on the detection of compounds commonly associated with gasoline using the following methods: <br /> EPA method 8020 for 13TEX' <br /> .Method detection limit:.Soil-0.005 mg/kg <br /> ---EPA method 8015(modified)for totalpetroleum hydrocarbons as gasoline: <br /> Method detection limit Soil=1 mg/kg <br /> --Method 7420 for total lead <br /> Method detection limit:Soil-5 mg/kg <br /> The results of chemical analyses conducted on soil samples obtained from the excavation are summarized in the Table <br /> as follows: <br /> i <br /> PG&E Stockton Service Center <br /> 00160-290-042 <br />