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w <br /> 04 February 2000 <br /> AGE-NC Project No. 95-0167 <br /> Page 5 of 8 <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) . <br /> 4 . 1 .2 . 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. 1 .3 . Boring Abandonment <br /> All probe borings will be permanently sealed to prevent vertical migration of contaminants. Soil <br /> probe borings shall be abandoned by backfilling with portland from the total depth to surface grade. <br /> 4.2 . INSTALLATION OF GROUND WATER MONITORING WELLS <br /> 4 .2 . 1 . Soil Sampling Procedures <br /> Soil borings will be advanced using hollow-stem auger drilling techniques. Soil samples will be <br /> collected from each soil boring at five-foot intervals. Relatively undisturbed soil samples will be <br /> collected in each of the borings using a California modified split-spoon sampler fitted with 2-inch <br /> diameter, 6-inch long brass sleeves. Upon removal from the sampler, the sample sleeves will be <br /> separated with a clean soil knife. The exposed ends of the second sleeve will be covered with Teflon <br /> sheets, capped and sealed with tape. Soils sampled in the borings will be visually classified by an <br /> AGE geologist in accordance with the Unified Soil Classification System (USCS). Additionally, soil <br /> samples will be field screened for the presence of volatile organic compounds using an organic vapor <br /> meter (OVM), equipped with a photo ionization detector (PID). Soil sample descriptions and OVM <br /> readings will be recorded on a log for each boring. <br /> Following sample collection, each preserved sample sleeve will be labeled with the boring location, <br /> depth, time, date and sampler' s initials. Appropriately sealed and labeled samples will be placed in <br /> a chilled container under ice and transported under chain-of-custody procedure to a DHS-certified <br /> laboratory. <br /> Soil cuttings generated during drilling of the soil borings will be contained within plastic sheeting <br /> on the site for storage. Drums containing decontamination water and soil cutting will be stored on- <br /> site pending appropriate removal, disposal and/or treatment. <br /> i <br /> i <br /> f <br /> i <br />