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1 <br />' Cone Penetrometer Testing Report - February 2002 <br /> PLAZA LIQUORS II <br />' 2420 West Turner Road, Lodi, California <br />' 1.0 INTRODUCTION <br />' At the request of Mr Robert McCarty,Advanced GeoEnvironmental, Inc (AGE), has prepared the <br /> enclosed cone penetrometer testing(CPT)report for 2420 West Turner Road, Lodi, California The <br /> report documents procedures and results for a subsurface investigation conducted at the site during <br />' February and March 2002 The site setting is illustrated on Figure 1 Site structures, boring, <br /> monitoring well and CPT locations are depicted on Figure 2 <br />' The objective of the CPT investigation was to model the geological and hydrogeological framework <br /> and to assess potential dissolved petroleum-migration pathways beneath the site This report is <br /> prepared in accordance with guidelines issued by the Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) for investigation of underground storage tank (UST) sites Background <br /> information and results of the previous investigations can be found in the AGE-prepared documents <br /> Preliminary Site Assessment Work Plan, dated 19 November 1999 and Quarterly Report - First <br />' Quarter 2000, dated 07 June 2000 <br /> lie 2.0. PROCEDURES <br /> On 27 and 28 February and 01 March 2002, three soil boring (CPT-1, CPT-2 and CPT-3) were <br /> advanced on- and off-site utilizing CPT technology Lithologic data was collected from initial CPT <br /> borings Immediately adjacent twin borings were then advanced to collect grab groundwater samples <br />' from selected depths A site plan depicting the boring locations is presented in Figure 2,boring logs <br /> are presented in Appendix A <br /> 21 CPT LITHOLOGIC INVESTIGATION <br /> Soil borings CPT-1, CPT-2 and CPT-3 were advanced vertically to total depths of 128 feet below <br /> surface grade(bsg),utilizing a 25-ton truck-mounted CPT drill ng equipped with 1 50-inch diameter <br /> hollow-stem rods A hydraulic ram was utilized to advance a cone penetrometer tip attached to the <br /> I hollow-stem rod assembly to total depth of each soil boring The soil parameters of cone <br /> penetrometer tip resistance, sleeve friction and pore water pressure were continuously measured as <br /> the cone penetrometer was advanced to depth Continuous boring logs were generated utilizing the <br /> Hogentogler Co CPT computer program The Hogentogler Co computer program utilized the CPT <br /> Soil Behavior Classification System(Robertson,P K ,Campanella,R G,Gillespie,D and Greig,J , <br /> 1986) to generate a general lithology type and display on a CPT boring log (See Appendix A) <br /> i <br /> Advanced CeoEnvironmental,Inc <br /> I <br />