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25 October 2005 AGE-NC Project No 02-0926 ' Page 2 of 7 At each boring location, the soil parameters of piezocone tip resistance, sleeve friction, and pore ' water pressure were continuously measured as the piezocone was advanced to depth Utilizing the soil parameters, a computer program interpreted general lithology types based on the CPT Soil Behavior Classification System (Robertson, P K , Campanella, R G, Gillespie, D, and Greig, J , ' 1986) and displayed the Interpreted lithologies on a continuous CPT boring log The CPT Interpretive logs are presented in Appendix B ' Rinseate generated during drilling activities was contamerized in properly labeled, Department of Transportation(DOT)-approved 55-gallon drums The CPT soil borings were backfilled over their entire depths with a portland cement grout mix I 22 GRAB GROUND WATER AND SOIL SAMPLE COLLECTION AND ANALYSIS Grab ground water and soil samples were collected in twin borings advanced Immediately adjacent to the Initial CPT soundings The samples were collected utilizing the 25-ton truck-mounted CPT drill rig equipped with 1 75-Inch diameter hollow-stem rods fitted with a HydroPunch ground water sampling assembly or a piston soil sampling assembly, which was pushed to specified sampling depths in each boring, diagrams of the sampling assemblies are Illustrated in Appendix B Ground water and soil samples were collected from specified depth intervals(zones)based on CPT lithologic data acquired from the initial CPT sounding indicating favorable conditions for sampling Ground water samples were collected by pushing the HydroPunch sampling assembly to specified zones, then withdrawn 3 feet to 5 feet to expose an Inlet screen, the Interior of the sampling tool filled with water and a 1-Inch outer diameter stainless steel bailer was lowered and utilized to extract ' a ground water sample Each ground water sample was transferred into four laboratory-supplied 40-milliliter(ml) volatile organic analysis (VOA) vials containing 0 5 ml 18% hydrochloric acid solution as a sample preservative rGround water samples were collected from the CPT boring locations at the following intervals ' CPT-1 was sampled between 42 feet and 47 feet bsg(this Interval was dry, no sample was recovered),between 53 feet and 58 feet bsg(this interval was dry,no sample was recovered), between 69 feet and 74 feet bsg, and between 90 feet and 95 feet bsg, • CPT-2 was sampled between 69 feet and 72 feet bsg, and between 87 feet and 90 feet bsg, and ' 0 CPT-3 was sampled between 68 feet and 72 feet bsg, and between 87 feet and 90 feet bsg • Advanced GeoEnvironmental,Inc