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C A M B R I A <br /> 42 JUrl t 2 P� t: 2S <br /> June 5, 2002 <br /> Mr Jeffrey Wong <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, California 95202 <br /> Re Site Investigation Work Plan <br /> Former Shell Service Station/Econo Gas Station <br /> 880 Victor Road <br /> Lodi, California <br /> SAP Code 135446 <br /> Incident No 98995526 <br /> SJCPHS/EHD Site Code 1746 <br /> Dear Mr Wong <br /> Cambria Environmental Technology, Inc (Cambria) prepared this work plan on behalf of Shell <br /> Oil Products US (Shell) to assess the lateral extent of petroleum hydrocarbons and fuel <br /> oxygenates in groundwater as requested in San Joaquin County Public Health Services <br /> Environmental Health Division's (SJCPHS/EHD's) March 22, 2002 letter The proposed scope <br /> of work presented in this document will comply with SJCPHS/EHD and Central Valley Regional <br /> Water Quality Control Board guidelines <br /> Site Location and Description <br /> The site is currently an operating Econo Gas station Iocated on the southeast corner of the <br /> intersection of Victor Road and Beckman Road in Lodi, California (Figure 1) Shell ceased <br /> operations at the site during December 1998 and sold the station and property to the current <br /> owner during March 2001 The former Shell station layout included a service station building, <br /> two dispenser islands, a gasoline underground storage tank (UST) complex, and a former waste <br /> oil UST (Figure 2) The current Econo Gas station layout is similar to the former Shell station <br /> but also includes a diesel UST, installed by the current station owner in March 2002 <br /> Oakland CA <br /> San Ramon CA Previous Work <br /> Sonoma, CA <br /> Cambna 1994 UST Removal During December 1994, four single-walled steel USTs (two 10,000-gallon <br /> Environmental and two 6,000-gallon) and associated product piping were removed Petroleum hydrocarbons <br /> Technology, Inc were detected in soil samples collected from beneath the former dispenser islands and product <br /> 4keykins Street piping and in the southeastern half of the UST excavation Fugro West, Inc (Fugro) of <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />