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EGG GREGG Dl[ZMUNG AND TESTING,INC <br /> GREGG IN SrTU,INC <br /> ENVIRONMENTAL AND GEOTECBMCAL INVESTIGATION SFRVICES <br /> • March 8, 2005 <br /> Cambria Environmental Technology Inc. <br /> Attn John Gerbrandt <br /> 270 Perldns St <br /> Sonoma, California 94608 <br /> Subject CPT Site Investigation <br /> Shell Service Station, 2375 West Grant Une Rd <br /> Tracy, California <br /> GREGG Project Number: 05-076MA <br /> Dear Mr. Gerbrandt <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 /> I Cone Penetration Tests (CPTU) <br /> 2 Pore Pressure Dissipation Tests (PPD) <br /> 3 Seismic Cone Penetration Tests (SCPTU) ❑ <br /> 4 Resistivity Cone Penebataon Tests (RCPTU) ❑ <br /> 5 UVIF Cone Penetration Tests (UVIFCPTU) ❑ <br /> 6 Groundwater Sampling (GWS) ❑ <br /> 7 Soil Sampling (SS) ❑ <br /> 8 Vapor Sampling (VS) ❑ <br /> L10 <br /> Vane Shear Testing (VST)SPT Energy Calibration (SPIE) ❑ <br /> A list of reference papers providing additional background on the specific tests conducted is <br /> provided in the bibliography foilowing 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 hesirtate to contact our office at(562)427-6899 <br /> Sincerely, <br /> GREGG IN SITU, Inc <br /> Mary Walden <br /> Operations Manager <br /> 950 Howe Rd.Martinez,California 94553.925)313-5800•FAX(925)3134302 <br /> OTHER OFFICES SUMMERVILLE•LOS ANGELES•SALT LAKE CITY•HOUSTON•VANCOUVER•WEST BERLIN(NJ)-AUGUSTA <br /> WWW W-eggdniiinacom <br />