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{ <br /> 28 December 1999 <br /> AGE-NC Project No. 97-0351 <br /> Page 7 of 7 <br /> personnel will be allowed into any excavation greater than five feet bsg without proper excavation <br /> shoring and/or sloping techniques are in-practice and supervised,. <br /> 4.2. SOIL SAMPLING PROCEDURES <br /> Soil samples collected from the base and sidewalls of the excavation will be obtained using a <br /> backhoe or excavator. Soil samples will be collected from the bucket of the excavating equipment <br /> with a metric soil sampling hammer and one 6-inch long by 2-inch diameter brass sleeve, from the <br /> excavated soil material. The exposed ends of the sample sleeve will be covered with Teflon sheets, <br /> capped and sealed with tape. <br /> Soil samples will be collected from soil stockpiles by digging approximately one foot into the soil <br /> stockpile. Soil samples will be collected by hand sampling methods using a stainless steel or carbon <br /> steel trowel, by pressing a metric soil sampling hammer and one 6-inch long by 2-inch diameter <br /> brass sleeve into the soil stockpile. <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 chilled <br /> container under ice and transported under chain-of-custody procedure to a DHS-certified laboratory. <br /> 4.3. EQUIPMENT DECONTAMINATION <br /> Prior to each sample collection, all sampling tools used for sample collection will be thoroughly <br /> rinsed with clean water after being washed with a solution of Alconox. <br /> 4.4. MONITORING WELL INSTALLATION AND WELL COMPLETION <br /> Procedures for the installation of the two ground water wells were outlined in the Stephens Marine <br /> Work Plan Addendum -dated 19 May 1997,prepared be AGE. The proposed location for additional <br /> ground water monitoring wells,is depicted in Figure 2. <br /> Advanced GeoEnvironmental,Inc. <br />