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PRESENTATION OF CONE PENETRATION TEST DATA <br /> 1.0 INTRODUCTION <br /> This report presents the results of a Cone Penetration Testing (CPT) and in situ <br /> groundwater sampling program carried out at the Lerner Texaco site located in Lodi, <br /> Ca The work was performed on December 5, 6 & 7, 1994 The scope of work was <br /> performed as directed by Mr Booth <br /> 2.0 FIELD EQUIPMENT & PROCEDURES <br /> The Cone Penetration Tests (CPT) were carried out by GREGG IN SITU, INC of <br /> Signal Hill, CA using an integrated electronic cone system The CPT soundings were <br /> performed in accordance with ASTM standards (D3441) A 10 ton capacity cone was <br /> used for all of the soundings This cone has a tip area of 10 sq cm and friction <br /> sleeve area of 150 sq cm The cone is designed with an equal end area friction <br /> sleeve and a tip end area ratio of 0 85 <br /> The cones used during the program recorded the following parameters at 5 cm depth <br /> 9 9P P <br /> intervals <br /> - Tip Resistance (QC) <br /> - Sleeve Friction (Fs) <br /> - Dynamic Pore Pressure (Ut) <br /> The above parameters were printed simultaneously on a printer and stored on a <br /> computer diskette for future analysis and reference <br /> The pore water pressure element was located directly behind the cone tip The pore <br /> water pressure element was 5.0 mm thick and consisted of porous plastic Each of <br /> the elements were saturated in glycerin under vacuum pressure prior to penetration <br /> Pore pressure dissipations were recorded at 5 second intervals when appropriate <br /> during pauses in the penetration <br /> A complete set of baseline readings was taken prior to each sounding to determine <br /> temperature shifts and any zero load offsets Monitoring base line readings ensures <br /> that the cone electronics are operating properly <br />