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J � IFJ <br /> KAPREAHAN ENGINEERING <br /> I N C O R P O R A T E D <br /> KEI-P88-1013 .R4 <br /> October 27 , 1994 <br /> Unocal Corporation RECEIVED <br /> 2000 Crow Canyon Place, Suite 400 <br /> P.O. Box 5155 <br /> San Ramon, California 94583 QIEC 2 r 1994 <br /> Attention: Ms. Tina Berry 9NVIRONMENT4 Hl AJH <br /> PERMITISERVICLS <br /> RE: Continuing Ground Water Investigation at <br /> Former Unocal Service Station #5098 <br /> 5606 Pacific Avenue <br /> Stockton, California <br /> Dear Ms. Berry: <br /> This report presents the results of Kaprealian Engineering, Ines. <br /> (KEI) most recent soil and ground water investigation for the <br /> referenced site, in accordance with KEI ' s proposal (KEI-P88- <br /> 1013 .P3) dated December 10 , 1992 . The purpose of the investigation <br /> was to further define the degree and extent of soil and ground <br /> water contamination at the site. This report also documents the <br /> destruction of one off-site monitoring well in accordance with <br /> KEI ' s above referenced work plan/proposal. The scope of the work <br /> performed by KEI consisted of the following: <br /> Coordination with regulatory agencies <br /> Geologic logging of two borings for the installation of <br /> two ground water monitoring wells <br /> The destruction of one monitoring well <br /> Soil sampling <br /> Ground water monitoring, purging, and development of the <br /> newly Installed wells <br /> Delivery of soil samples (including properly executed <br /> Chain of Custody documentation) to a California-certified <br /> analytical laboratory for laboratory analyses <br /> Data analysis, interpretation, and report preparation <br /> SITE DESCRIPTION AND BACKGROUND <br /> The subject site formerly contained a Unocal service station <br /> facility. The site occupies flat terrain and is located at the <br /> y northeast corner of the intersection of Pacific Avenue and <br /> Robznhood Drive in Stockton, California. The site is also situated <br /> 2401 Stanwell Drove Suite 400 <br /> Concord,California 94520 <br /> Tel 510 602 5100 Fax 510 687 0602 <br />