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1J§EGG ORI c c1 DRII.I IN(I %N I) I I I INt ,. i <br /> ORI (A] IN SITU, INC . <br /> I NVIRf)NMI{NTAI. AND61:01I:CHNICAI. INVFSI16AI IONS ILVI( I <br /> April 12 2004 <br /> Secor <br /> Attn: Sean Coyle <br /> 3017 Kilgore Road Suite 100 <br /> Rancho Cordova, California 95670 <br /> Subject: CPT Site Investigation <br /> Chevron 9-0557 <br /> Stockton, California <br /> GREGG Project Number: 04-098ma <br /> Dear Mr. Coyle: <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 (SCPTU) ❑ <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) ❑ <br /> 8 Vapor Sampling (VS) ❑ <br /> 9 Vane Shear Testing (VST) ❑ <br /> 11 10 SPT Energy Calibration (SPIE) ❑ <br /> 11 <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 (925) 313-5800. <br /> Sincerely, <br /> REGG IN SITU, Inc. <br /> Mary Walden <br /> Operations Ma ager <br /> i <br /> 950 Howe Road - Martinez,California 94553- (925)313-5800- FAX(425)313-0302 <br /> 0I IIF:R 011A,ICFSr SI IMMI-RVII.I I - I Iri ANGI`I I ;- SAS T I.AKF f YIFY•I[(-)USTON•VANCOIfVF:R•WI-:ST BF:RI IN fN I •AI IGIiSTA <br />