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�l <br /> 3.0 INVESTIGATION ACTIVITIES <br /> This section summarizes the scope of work completed to meet the <br /> objective stated in Section 1.1. <br /> 3.1 PRE-FIELDWORK <br /> Prior to initiating field activities, the follow activities were completed: <br /> . Fieldwork and health and safety coordination with site employees, <br /> ERM and subcontractors; <br /> . Underground Services Alert subscribing companies were notified to <br /> perform utility clearances in the vicinity of the soil boring locations; <br /> . A utility locator was employed to perform utility clear arnces in the <br /> vicinity of the soil boring locations; and <br /> . Necessary permits were secured from the San Joaquin County - <br /> J Environmental Health Department(copies of well permits are <br /> presented in Appendix A). <br /> I <br /> 3.2 FIELDWORK <br /> The fieldwork for this Phase II investigation was conducted between 11 <br /> and 12 January 2005. Soil-boring logs completed during this investigation <br /> are included in Appendix A. <br /> 3.2.1 Soil Characterization <br /> The subsurface investigation was conducted in order to characterize the <br /> current environmental conditions at the site. ERM subcontracted TEG to <br /> complete four soil borings (SB-4 through SB-7) using a direct-push method <br /> on a truck-mounted GeoProbe®unit. The borings were advanced on <br /> 1 11 January 2004 to evaluate soil and groundwater conditions and to collect <br /> Jsamples to assist in evaluating soil characteristics. The soil borings were <br /> drilled and continuously sampled in 4-foot intervals to approximately 12 <br /> ,l feet bgs. At the boring locations the site is covered by approximately 6 <br /> JJ inches of asphalt and groundwater was encountered at approximately 4 to <br /> GRAI 5 LFSCO/00243M1 /3/2005 <br /> IJ <br /> 1 <br />