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0 <br /> 1 <br /> ' material selected for analysis will be chosen based on the apparent maximum level of petroleum <br /> hydrocarbons, as observed in the field. Soil samples will be identified by soil boring number and <br /> depth of sample (e.g., SB1-10 will be for the soil sample collected at Boring SB1 at a depth of <br /> 10 feet bgs). Collected soil samples will be stored in a chilled ice chest and transported directly <br /> to the laboratory at the end of each day. <br /> ' One soil sample per location will be selected for analysis of TPHd using EPA Method 8015M. <br /> Quantification of the TPH from C8 to C40 will be requested in order to quantify petroleum <br /> hydrocarbons concentrations beyond the diesel range. In addition, chromatograms will be <br /> requested from the laboratory in order to assess the correlation of the TPH with the fresh diesel <br /> ' standard. <br /> Collection of soil samples and the soil logging will be conducted by Kennedy/Jenks staff working <br /> ' under the supervision of a California Professional Geologist. Field documentation will include <br /> the completion of boring logs that record the soils encountered during drilling of each borehole, <br /> and soil sampling intervals. Direct-Push borings and subsurface sampling will be performed in <br /> ' accordance with Kennedy/Jenks' Standard Operating Guideline (SOG)for Typical Hydraulic <br /> Push/Drive Sampling Procedures (Appendix C). <br /> 1 <br /> Soil Investigation Work Plan Page 4 <br /> ' Union Pacific Railroad Company, Stockton Railyard, Stockton, California <br /> j:120031032777.16_union pacific-stockton yardl00-reportslwplan_soilboringltextlwp_soil_1003.doc <br />