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� , r <br /> i <br /> 4 ' r <br /> 11 November 2004 <br /> } AGE-NC Project No 02-0962 <br />' Page 5of14 H <br /> ' 3 2 1 CPT Lithologic Investigation F <br /> The CPT investigation utilized a 25-ton truck-mounted CPT drill ng equipped with 1 50-inch <br /> } < diametcrhollow-stem rods A hydr'auhc ram was utilized to advance apiezocone(cone penetroriieter'`-' <br />' with pore pressure measurement) attached to the hollow-stem rod assembly to total depth of each <br /> soil boring, a piezocone illustration is provided in Appendix C <br />' Soil boring CPT-1 was advanced to a total depth of approximately 100 feet bsg Soil parameters of <br /> piezocone tip resistance, sleeve friction and pore water pressure were continuously measured as the <br />' piezocorie was advanced to depth Utilizing the soil parameters, the Hogentogler Co computer <br /> program interpreted general hthology types based on the CPT Soil Behavior Classification System ' <br /> '(Robertson;P K ;Campanella,R G,Gillespie,D,and Greig, J , 1986)and displayed the interpreted <br />' lithologies on a continuous CPT boring log The CPT interpretive logs are presented in Appendix C <br /> Rinseate generated during drilling activities was containerized in properly labeled DOT approved <br />' 55-gallon drums and was stored on-site in an area lacking public access The CPT soil borings were <br /> backfilled over their entire depth range with a bentonite/portland cement grout mix <br /> 3 2 2 Soil and Ground Water Sample Collection <br />' Soil and grab ground water samples were collected in a twin soil boring advanced immediately <br /> adjacent to the initial CPT boring The samples were collected utilizing the 25-ton truck-mounted <br />' CPT drill rig equipped with 1 75-inch diameter hollow-stem rods fitted with a HydroPunch ground <br /> water or a piston soil sampling!assembly, which was pushed'to,specified sampling depths'm each <br /> .r <br /> soil boring Diagrams of the sampling assemblies are illustrated.in Appendix C <br /> ISoil and groundwater samples were collected from specified depth intervals (zones) based on the <br /> 'acquired CPT-lithology data indicating favorable conditions for sampling including additional <br /> known target zones For ground water, a HydroPunch sampling tool was pushed into the,specified <br /> zone,then withdrawn approximately four feet to expose an inlet screen,the interior of the sampling <br /> tool filled with water and a 1-inch outer diameter (O D ) stainless steel bailer was lowered and <br />' z utilized to extract a ground water sample The samples were transferred into three 40-milliliter(ml) <br /> volatile,organic analysis(VOA)vials containing 0 5 ml'18%hydrochloric acid solution as a sample <br />' preservative, and one 1-liter amber bottle without preservative The samples were labeled with the desigiation, date,time of sampling, and the sampler's initials and transported in a chilled container <br /> under chain of custody to Cal Tech Environmental Laboratories (CTEL), a Department of Health <br /> F <br /> Services-certified analytical laboratory, for'analysis <br /> 1 Advanced GeoEnvironmental,Inc <br /> ! <br /> F t <br /> 5 � <br />