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Harding Lawson Associates <br /> t <br /> The extent and concentration of theetroleum hydrocarbons remaining in the <br /> P Y g <br /> soil following excavation was assessed by collecting and analyzing excavation side <br /> wall and floor samples. The purpose of the soil sampling following excavation <br /> was to document the concentration of petroleum hydrocarbons remaining in the <br /> soil, and evaluate the threat of these remaining chemicals migrating to the <br /> groundwater, and impacting the groundwater quality. <br /> Report Preparation: This task consisted of preparing this report which <br /> summarizes the work performed, presents the results of the investigation, HLA's <br /> conclusions regarding site conditions, and recommendations for additional phases <br /> of work. � <br /> I <br /> I <br /> i <br /> i <br /> T19461-H 3 of 20 <br />