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Soil Sampling <br /> Soil samples were taken at 5-foot intervals, or at significant lithologic <br /> changes in the sail, beginning at' field forelow evident the of contamanatlon�samples were examined in the <br /> Examination included visual observations and detections of odor <br /> Selected soil samples thra California mtted oadified split-spoon sampler <br />' sis Soil <br /> samples were taken w <br /> fitted with brass tube liners. The split-spoon sampler and brass <br /> liners were with <br /> pen water All augers and bor to use with an Alconox its s were water solution <br /> steam <br />' then rinsed vvi II <br /> cleaned prior to beginning all bonngs <br /> Soil samples were collected by inserting the sampler into the augers <br />' and hammering it into the soil to the desired depth The sampler <br /> was then removed from the augers, and the brass liner containing <br /> the sample was removed from the sampler The soil sample was <br /> examined for evidence of contamination Any brass tubes containing <br /> samples exhibiting evidence of contamination were covered with <br /> Teflon tape and coverplastic <br /> boring number,i samhplee ntervas <br /> al The <br /> brass tubes were labeled with the <br /> depth, sampler's iaixnobile laboratory located on site a samples were <br /> then submitted to <br /> Samples of first aquifer formation were collected <br /> doreve lasso <br /> ysis <br /> and permeability testing Samples of cl were <br /> collected for permeability testing <br /> Sampling of Stockpiled Soil <br /> Twenty-five composite samples of the contaminated stockpiled soil <br />' were collected to characterize Each compositersample wases remediation <br /> composed of <br /> permitting procedures <br /> four discrete soil samples The four discrete samples were collected <br />' approximately every 12 feet throughout the length of the pile at a <br /> minimum depth of 1 foot below the surface The soil samples were <br /> collected by cutting a hole through the Visqueen that covers the <br />' stockpiles Each discrete sample was collected by pounding a brass <br /> tube into the soil with a mallet The brass tubes were retrieved and <br /> covered with Teflon tape and capped with plastic caps to make <br /> airtight seals The brass tubes were labeled with the sample <br />' number, sampler's initials, date, time, location, and analysis <br /> required The sample was logged on a chain-of-custody form and in <br /> a field book. The samples were then submitted to a mobile laboratory <br /> located on-site. <br /> 2-2 <br />