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0 <br /> 27 November 2001 <br /> AGE-NC Project No. 01-0856 <br /> Page 5 of 5 <br /> tape. As fine-grained soil generally retains contaminants more efficiently than coarse-grained soil, <br /> a sleeve filled with fine-grained soil will be preferentially selected for preservation; if the soil in all <br /> sleeves have similar textures, the second leading sleeve will be selected. <br /> Selected soil hand auger borings will be sampled at 6 inches bsg, 1 foot bsg,3 feet bsg and at 5 feet <br /> bsg using a metric soil sampler loaded with one six-inch brass sleeve. The ends of the sleeve will <br /> be covered with Teflon sheets, capped and sealed with tape. <br /> Appropriately sealed and labeled samples will be placed in a chilled container under ice and <br /> transported under chain-of-custodyprocedure to a DHS-certified laboratory.Each sample sleeve will <br /> be labeled with the boring designation,depth,time,date and sampler's initials. Soils encountered in <br /> the borings will be visually classified by an AGE geologist in accordance with the Unified Soil <br /> Classification System(USCS).Additionally, soil samples will be field screened for the presence of <br /> volatile organic compounds using an organic vapor meter(OVM), equipped with photo-ionization <br /> detector(PID). Soil samples displaying field indications of contamination-staining or positive PID <br /> readings will be preferentially selected for analysis. Shallow soil samples will be selected for <br /> analysis if no field indications are noted. <br /> 4.3. EQUIPMENT DECONTAMINATION <br /> Prior to use,all sampling tools used for sample collection will be thoroughly rinsed with clean water <br /> after being washed with a solution of Alconox. All probing rods will be cleaned prior to <br /> advancement at each probe boring location. <br /> 4.4. BORING ABANDONMENT <br /> All probe borings will be permanently sealed to prevent vertical migration of contaminants. Soil <br /> borings shall be abandoned bybackfilling with portland cement from the total depth to surface grade. <br /> Advanced GwEnvironmental,Ine. <br />