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5� GREGG GREGG DRILLING AND TESTING, INC. <br /> GREGG IN SITU, INC. <br /> ENVIRONMENTAL AND GEOTECHNICAL INVESTIGATION SERVICES <br /> r• December 13 2004 <br /> Foothill <br /> Attn: Mike Vlach <br /> 12793 Paddy Creek Lane <br /> Lodi, California 95240 <br /> Subject: CPT Site Investigation <br /> 300 S. Califomia Street <br /> Stockton, California <br /> GREGG Project Number: 04-407ma <br /> Dear Mr. Vlach: <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) x <br /> 8 Vapor Sampiing (VS) ❑ <br /> 9 Vane Shear Testing (VST) ❑ <br /> 10 SPT 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 (925) 313-5800. <br /> Sincerely, <br /> GREGG IN SITU, Inc. <br /> Mary Walden <br /> Operations Manager <br /> 950 Howe Road o Martinez,California 94553 o(925)313-5800 v FAX(925)313-0302 <br /> OTHER OFFICES.SUha ERVIL.LE•LOS ANGELES•SALT LAKE CITY•HOUSTON•VANCOUVER•WEST BERLIN(NJ)-AUGUSTA <br /> www.aejzgdrillinp-.com <br />