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f <br /> r � <br /> iC A M B R l A 140V $ zoo2 <br /> ENVIRONMEN I HEALTH <br /> PERMIT/SERVICES November 15, 2002 <br /> Mr Harlin Knoll <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, California 95202 <br /> Re Site Investigationfrhird Quarter 2002 Groundwater Monitoring Report <br /> Shell-branded Service Station <br /> 7700 Moreland Street <br /> Stockton, California <br /> SAP Code 136146 <br /> Incident No 97259207 <br /> SJCEHD Site Code 852 <br /> \�Dear Mr Knoll <br /> Cambria Environmental Technology, Inc (Cambna) prepared-this report on behalf of Equilon <br /> Enterprises LLC dba Shell Oil Products US (Shell) to document the recent site investigation <br /> activities at the above referenced site The purpose of the investigation was to assess the extent <br /> • of petroleum hydrocarbons and fuel oxygenates in soil and groundwater beneath the site <br /> Cambria followed the scope of work presented in our June 12, 2002 Site Investigation Work Plan <br /> and approved in San Joaquin County Environmental Health Department (SJCEHD) <br /> correspondence dated July 12, 2002 SJCEHD February 20, 2002 correspondence initiated the <br /> investigation, and the work was performed in accordance with SJCEHD and Central Valley <br /> Regional Water Quality Control Board guidelines <br /> SITE LOCATION AND DESCRIPTION <br /> The subject property is an operating Shell-branded service station located on the southeast corner <br /> of Moreland Street and Hammer Lane in a mixed rural/residential area of Stockton, California <br /> (Figure 1) The station layout includes three underground fuel storage tanks (USTs), a waste oil <br /> UST,four product dispensers,and a station building(Figure 2) <br /> Oakland CA PREVIOUS WORK <br /> San Ramon CA <br /> Sonoma CA 2000 Soil Sampling Cambria collected one soil sample near the northwestern dispenser(DP4) <br /> Cambria on July 31, 2000 following a detected leak in the product piping between the dispenser and the <br /> Environmental USTs Field observations suggest the leak was contained by the secondary containment piping, <br /> nology,Inc which routed the fuel back to the USTs,resulting in no spill to the environment The soil sample <br /> 2 Perkins street that Cambria collected in native soil at approximately four feet below grade (fbg) contained <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />