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12 May 2010 <br /> AGE-NC Project No. 09-1692 <br /> Page 4 of 4 <br /> Based on OVM readings and field observations,the excavated soil will be segregated into clean soil <br /> and impacted soil; only soil exhibiting hydrocarbon odors or measured OVM readings will be <br /> disposed to the landfill. <br /> Prior to disposal, hydrocarbon-impacted soil will be characterized by CTEL. After soil <br /> characterization, trucks will be utilized to transport the waste material for proper disposal. <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 five feet bsg until proper excavation <br /> shoring and/or sloping techniques have been emplaced. <br /> 3.2. SOIL SAMPLING PROCEDURES <br /> Soil samples collected from the base and sidewalls of the excavations will be obtained using the <br /> backhoe. 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 stainless steel sleeve. The exposed ends of the <br /> sample sleeve 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 6-inch by 2-inch stainless steel sleeve into the soil stockpile.The exposed <br /> ends of the sample sleeve will be covered with Teflon sheets, capped and sealed with tape. <br /> Following sample collection, each sample sleeve will be labeled with the sample location, depth, <br /> time,date and sampler's initials.Appropriately sealed and labeled samples will be placed in a chilled <br /> container under ice and transported under chain-of-custody procedure to CTEL for analysis. <br /> 3.3. EXCAVATION BACKFILLING PROCEDURES <br /> The excavation will be backfilled with clean fill overburden and/or pea gravel mixtures. Removed <br /> material that has been determined to be clean may also be used for backfilling purposes. <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 />