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A d van ced <br /> :GeoEnvironmental, Inc . =o- <br /> I <br /> 16 October 2009 <br /> AGE-NC Project No. 09-1714 <br /> Mr. Dwayne G. McAllister /,fi- <br /> STOCKTON ENVIRONMENTAL <br /> 319 East Banbury Drive <br /> Stockton,California 95207 ' <br /> Subject: Limited Subsurface Site Assessment Report <br /> DELTA COLLEGE CATERPILLAR CENTER(SHIMA) <br /> 5151 Pacific Avenue, Stockton, California <br /> Dear Mr. McAllister: <br /> At your request, Advanced GeoEnvironmental, Inc. (AGE) has prepared the enclosed Limited <br /> Subsurface Site Assessment Report for the property at 5151 Pacific Avenue, Stockton, California. <br /> The work is being performed as part of due diligence effort to investigate areas of potential <br /> environmental concern at the site;prior to demolition and reconstruction activities. <br /> The Central Valley Regional Water Quality Control Board requirements for the investigation of f <br /> underground storage tank(UST)sites was used as guidelines for the investigation. The location of <br /> the site and its surroundings are illustrated in Figure 1; major features on the site and boring <br /> locations are illustrated in Figure 2.Upon your approval,a copy of this report will be transmitted to <br /> Mr. Mike Infurna,of the San Joaquin County Environmental'Health Department(EHD). <br /> 1 <br /> INTRODUCTION/BACKGROUND <br /> The subject area under investigation.is the Agricultural and Natural Resource Yard/Shima Center, <br /> located at San Joaquin Delta College(SJDC),5151 Pacific Avenue,Stockton,California.It is AGE's <br /> understanding that the subject area will be demolished for new construction. The subject area is <br /> comprised of a shop/Caterpillar repair facility, an above-ground storage tank (AST), several <br /> agricultural buildings,and classroom area.A clarifier is reportedly present in the north west corner <br /> of the subject area. During a site visit of the subject area with representatives of Stockton <br /> Environmental,one"mechanic's pit"was identified within the primary shop building. It was later <br /> noted,by a SJDC representative,that the"mechanic's pit"was actually a water circulation chamber <br /> (irrigation pump/circulation tank) used as part of an irrigation systems course. The circulation <br /> chamber is currently empty of water, as it is no longer in use. <br /> i <br /> 837 Shaw Road, Stockton,CA 95215 <br /> Telephone(209)467-1006•Fax(209)467-4118 <br />