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Wilkinson who was operating the mobile lab . <br /> � <br /> After decontaminating the sample barrel & filling it with clean <br /> tubes, the pipe was pushed and driven to 10 ' bgl, where another <br /> soil sample was taken. Recovery consisted of 1511 of tan to brown <br /> silty, sandy clay; soft, slightly plastic, containing abundant <br /> gold flakes of mica. No odor was noted; one tube was sealed and <br /> taken directly to the onsite lab for analysis . Refer to PLATE Va <br /> for a lithologic plot of the soils encountered. <br /> A clean hydropunch tool was attached to the drill string and <br /> Pushed and hammered to 15' bgl . A clean stainless steel bailer <br /> was lowered into the pipe on new monofiliment line & recovered <br /> slightly turbid water; no odor was noted. Three properly <br /> preserved VOA' s were filled, promptly sealed & delivered to the <br /> lab. The hole was covered with a piece of wood pending grouting <br /> after completion of the work. <br /> Steven Sasson, Sr. REHS from the San Joaquin County EHD arrived <br /> at about 10 : 00 AM and remained during the rest of the operation. <br /> The truck was then moved to soil probe A-2 as shown on PLATE III . <br /> Tools were advanced as described above, and a core was taken from <br /> 101 -1116" . A portion of the core was promptly sealed and taken <br /> directly to the onsite lab by the geologist in charge . <br /> After thoroughly decontaminating the hydropunch tool & associated <br /> equipment, the tool was pushed to 15 ' bgl, and allowed to set for <br /> 5 minutes . The bailer was lowered into the tool, and recovered <br /> sufficient muddy water to fill three VOA' s; they were tightly <br /> sealed and taken to the onsite lab. Refer to PLATE Vb for the <br /> lithologic plot of the probe hole . <br /> Because preliminary laboratory results revealed that the soil & <br /> water sample from A-2 was clean, it was decided that locations <br /> B-1 & C-1 were not needed, and the strataprobe unit was set up on <br /> A-4 as shown on PLATE III . A core was taken from 101 - 1116" bgl <br /> as described earlier; recovery consisted of 15" of tan to brown <br /> silty clay - see PLATE Vc for details . There was a definite <br /> petroleum odor in portions of the core, but no visable staining <br /> or discoloration was noted. One metal sleeve of core material <br /> was promptly sealed and taken to the onsite lab for analysis . <br /> The hydropunch tool was driven to 151 , opened, and allowed to set <br /> for a few minutes . Water entry was very slow, but sufficient <br /> fluid was eventually recovered to fill three VOA' s for analysis . <br /> The water was a brownish-rust color, and had a distinct petroleum <br /> • odor, but no free product . The preserved samples were taken to <br /> 4 <br />