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■�v`/w�`�', Y HaleyN.&Aldrich,Inc. <br /> `� '�■ ■ Wal ut Main,CA 9 <br /> Suite 309 <br /> Walnut Geek,CA 94596 <br /> 925.949.1012 <br /> 20 April 2015 <br /> File No.41980-970 <br /> Adrienne Ellsaesser <br /> �1�J1 San Joaquin County <br /> \ Environmental Health Department <br /> 1868 Hazelton Avenue <br /> Stockton,CA95206-6232 <br /> Subject: Work Plan for Soil Characterization Borings <br /> PGE Stockton A Substation <br /> 540 South Center St. <br /> Stockton,CA 95203 <br /> Dear Ms. Ellsaesser: <br /> Haley&Aldrich has prepared this work plan to describe the proposed work to be conducted at the <br /> above referenced site. <br /> Scope of Work <br /> It is proposed to install one geoprobe boring,to a maximum depth of 20 feet below ground surface <br /> (BGS)at the location shown on the attached figure. It is also proposed to install up to 18 hand augered <br /> borings,to a maximum depth of 5 ft bgs,at the locations shown on the attached figure. It is possible <br /> that not all the hand auger locations shown on the figure will be installed. <br /> The purpose of the boring installation is provide soil characterization data in advance of a construction <br /> project scheduled at the site.The data will be used to establish protocol to protect the health and safety <br /> of workers, and also to provide data for offsite soil disposal,if required. <br /> Following sample collection, all borings will be grouted to surface. <br /> �14 lµ www.haleyaldrich.com <br />