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I� <br /> h , <br /> E TL 686-082--02 <br /> ' GEOTECHNICAL ENGINEERING :INVESTIGATION <br /> UNDERGROUND TRANSFORMER OIILSTORAGE TANK <br /> I� r <br /> f PACIFIC GAS & ELECTRI.0 COMPANY <br /> h <br /> STOCKTON SERVICE CENTER <br /> � I <br /> STOCKTON, CALIFORNIA <br /> � 1 <br /> t <br /> 1 . 0 INTRODUCTION <br /> This report presents the results of a geotechnical <br /> engineering investigation in the arra where a 10, 000 gallon <br /> g <br /> underground transformer _.oid­'�storalge tank and appurtenant <br /> equipment were located at the Pacificr; Gas and Electric Company <br /> r Y <br /> Service Center in Stockton, California. The scope of our � <br /> services were verbally authorized by Mr. Mike Bennett of P.G.&E. <br /> f <br /> on April 20, 1987 . ! <br /> The contents of : this report includes the purpose and scope <br /> of the investigation, background information concerning the <br /> project, a description of the investig,tive procedures used, and <br /> the subsequent findings obtained. In addition, we have provided <br /> our evaluation of the findings and related conclusions and <br /> recommendations . The appendices of th1�s report contain the logs i <br /> of t I <br /> he test borzngs , a copy o:f the chain--of-custody <br /> documentation, and a copy of our I�Proposal for Engineering <br /> Investigation dated April 20, 1987 . yy <br /> fze u i rrim a2iee. ru. E <br /> r Fresno modesio Visalia Bakersfield <br /> L {� <br />