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`"W' <br /> 30 July 1999 <br /> AGE-NC Project No. 97-0300 <br /> Page 5 of 5 <br /> least one soil boring will be continuously sampled using a macro core sampler. Relatively <br /> undisturbed soil samples will be collected at five foot intervals beginning at five foot bsg in all other <br /> borings using a Geoprobe soil sampling assembly loaded with pre-cleaned 1.125-inch by 6-inch <br /> brass sleeves. Upon soil sample retrieval,the sample sleeve will be separated with a clean soil knife. <br /> The exposed ends of the second sleeve will be covered with Teflon sheets, capped and sealed with <br /> tape. Soils encountered in the borings will be visually classified by an AGE geologist in accordance <br /> with the Unified Soil Classification System (USCS). Additionally, soil samples will be field <br /> screened for the presence of volatile organic compounds using an organic vapor meter(OVM). <br /> Following sample collection,each soil sample will be labeled with the boring location, depth, time, <br /> 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 a DHS-certified laboratory. <br /> All soil probe borings will be backfilled from total depth to surface grade utilizing a PVC tremie <br /> pipe and portland cement. <br /> 4.2. EQUIPMENT DECONTAMINATION PROCEDURES <br /> All sampling tools used for sample collection will be thoroughly rinsed with clean water after being <br /> washed with a solution of Alconox. All down-hole drilling and sampling equipment will be washed <br /> prior to starting the boring. <br /> Advanced GeoEnviron mental,Inc. <br />