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EGG GREGG DRILLING AND TESTING, INC <br /> nPr-W <br /> GREGG IN SITU,INC <br /> ENVIRONMENTAL AND GEOTECHNICAL 113VESTIGATION SERVICES <br /> September 7, 2004 <br /> Cambria <br /> Attn- Scott Lewis <br /> 274 Perkins Street <br /> Sonoma, California 95476 <br /> Subject- CPT Site Investigation <br /> Shell <br /> Stockton, California <br /> GREGG Project Number. 04-291ma <br /> Dear Mr. Lewis: <br /> The following report presents the results of GREGG IN SITU's Cone Penetration Test <br /> investigation for the above referenced site The following testing services were performed <br /> 1 Cone Penetration Tests (CPTU) x <br /> 2 Pore Pressure Dissipation Tests (PPD) x <br /> 3 Seismic Cone Penetration Tests (SCP-RJ) ❑ <br /> 4 Resistivity Cone Penetration Tests (RCPTU) ❑ <br /> 5 UVIF Cone Penetration Tests (UVIFCPTU) ❑ <br /> 6 Groundwater Sampling (GWS) x <br /> 7 Soil Sampling (SS) x <br /> 8 Vapor Sampling (VS) ❑ <br /> 9 Vane Shear Testing (VST) ❑ <br /> 10SPT Energy Calibration (SPTE) ❑ <br /> A list of reference papers providing additional background on the specific tests conducted is <br /> provided in the bibliography following the text of the report If you would like a copy of any of <br /> these publications or should you have any questions or comments regarding the contents of this <br /> report, please do not hesitate to contact our office at (562) 427-6899 <br /> Sincerely, <br /> GREGG IN SITU, Inc. <br /> Mary Walde <br /> Operations Manager <br /> 950 Howe Road•Martinez,California 94553•(925)313-SM•FAX(925)313-0302 <br /> OTHER OFFICES SUNeAERVII.LE-LOS ANGELES-SALT LAKE CITY•HOUSTON-VANCOUVER-WEST BERLIN(Nn*AUGUSTA <br /> www=ggdriILng com <br />