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15 January 1998 <br /> AGE-NC Project No 96-0254 <br /> Page 1 l of 16 <br /> 4 1 1 Soil Sampling Collection and Analysis <br /> Soil borings to be sampled continuously will be sampled using a 2-inch diameter Geoprobe macro- <br /> soil sampling assembly and a four-foot Teflon sleeve Upon sample retrieval,the ends of the liner <br /> will be cut and the section of soil desired for analysis will be covered with Teflon sheets, capped and <br /> sealed with tape <br /> Soil borings to be sampled at discreet five-foot intervals will be sampled using a 1 125" Geoprobe <br /> soil sampling assembly and four six-inch brass sleeves Upon sample retrieval, the ends of the <br /> second sleeve will be covered with Teflon sheets, capped and sealed with tape <br /> Appropriately sealed and labeled samples will be placed in a chilled containerunder is and <br /> transported under chain-of-custody procedure 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) <br /> 4 1 2 Grab Ground Water Sampling Procedures <br /> For the collection of`grab' ground water samples, selected probe borings will be advanced to a depth <br /> of 35 to 37 feet bsg The grab ground water samples will be collected using a Geoprobe water <br /> sampling assembly with a wire-wound steel screen or a pre-cleaned one-inch diameter, 0 01 slotted <br /> screen Each ground water sample will be extracted by lowering a Teflon bailer through the hollow <br /> center of the push rods into the screened section Samples will be collected in laboratory-supplied, <br /> 40-m1 VOA vials containing 0 5-ml of hydrochloric acid as sample preservative and into a 1-liter <br /> amber bottle lacking the preservative The labeled vials will be placed in a chilled container under <br /> ice and transported under chain-of-custody to a DHS-certified laboratory <br /> 4 1 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 /> Advanced GeoEnvironmental,Inc <br />