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27 October 2006 <br /> AGE-NC Project No. 02-0950 <br /> Page 4 of 4 <br /> The open excavation area will be surrounded by temporary fencing. No AGE or subcontractor <br /> personnel will be allowed into any excavation greater than 5 feet bsg until proper excavation shoring <br /> and/or sloping techniques have been emplaced. <br /> 3.2. SOIL SAMPLING PROCEDURES <br /> Soil samples collected from the base and sidewalls of the excavation will be obtained using the <br /> excavator. Soil samples will be collected from the bucket of the excavating equipment with a metric <br /> soil sampling hammer and one 6-inch by 2-inch brass sleeve.The exposed ends of the sample sleeve <br /> will be covered with Teflon sheets, capped, and sealed with tape. <br /> Stockpile soil samples will be collected by hand sampling methods using a stainless steel or carbon <br /> steel trowel and pressing a metric soil sampling hammer and one 6-inch by 2-inch brass sleeve into <br /> the soil stockpile.The exposed ends of the sample sleeve will be covered with Teflon sheets,capped, <br /> and sealed with tape. <br /> Following sample collection, each sample sleeve will be labeled with the boring location, depth, <br /> time, date, and sampler's initials. Appropriately sealed and labeled samples will be placed in a <br /> chilled container and transported under chain of custody procedure to a DHS-certified laboratory. <br /> 3.3. EXCAVATION BACKFILLING PROCEDURES <br /> The excavation will be backfilled with clean fill sand and/or pea gravel mixtures. The excavation <br /> will be backfilled and compacted in 5-foot lifts. <br /> 3.4. EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> and rinsed with clean water prior to each sampling location. <br /> Advanced GeoEnvironmental,Inc. <br />