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f <br /> I <br /> C A M B R I A Rmaym <br /> SEP 13 2004 <br /> ENVIRONMENTSeptember 8, 2004 <br /> Mr Harlin Knoll <br /> PERMIT/SERVIOESrH <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re Site Investigation/Second Quarter 2004 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 (Cambria) prepared this report on behalf of Equilon <br /> Enterprises LLC dba Shell Oil Products US (Shell) to document the recent site investigation <br /> activities performed at the above referenced site This investigation was performed to further <br /> assess the extent of fuel oxygenates in soil and groundwater beneath the site Cambria followed <br /> • the scope of work presented in our February 20, 2003 Site.Investigation Work Plan and approved <br /> in San Joaquin County Environmental Health Department (SJCEHD) correspondence dated <br /> July 14, 2003 SJCEHD January 30, 2003 correspondence initiated the investigation, and the <br /> work was performed in accordance with SJCEHD and Central Valley Regional Water Quality <br /> 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, an aboveground propane tank, and a station building (Figure 2) <br /> PREVIOUS WORK <br /> 2000 Soil Sample:g. Cambria collected one soil sample (DP-4) near the northwestern dispenser <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 /> Technology,Inc which routed the fuel back to the USTs, resulting in no spill to the environment The soil sample <br /> �o Hollis street that Cambria collected in native soil at approximately 4 feet below grade (fbg) contained <br /> Suite A <br /> Emeryville CA 94608 <br /> Tel(510)4200700 <br /> Fax(510)420-9170 <br />