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CANIBRIA <br /> December 20, 2000 <br /> Ms Lori Duncan <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, Third Floorc� <br /> Stockton, California 95202 <br /> Re Site Investigation Report <br /> United Gas Service Station/Former Texaco Service Station <br /> 440 West Charter Way <br /> Stockton, California <br /> N �- <br /> SAP Code 121258 <br /> Incident No 88870583 Ln <br /> SJCPHS Site Code 1055 <br /> Dear Ms Duncan <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equiva <br /> Services LLC (Equiva) to document the recent site investigation activities at the above <br /> referenced site The purpose of the investigation was to delineate the vertical extent of <br /> . petroleum hydrocarbons and methyl tertiary butyl ether (MTBE) in soil and groundwater <br /> beneath the site Cambria followed the scope of work presented in August 26, 1999 Site <br /> Investigation Work Plan, May 11, 2000 Workplan Addendum I, June 30, 2000 Work plan <br /> Addendum II, and in San Joaquin County Department of Health Services/Environmental <br /> Health Division (PHS/EHD) correspondence dated June 1, 2000 The work was performed to <br /> comply with San Joaquin County Public Health Services, Environmental Health Division <br /> (SJCPHS-EHD), and Central Valley Regional Water Quality Control Board (RWQCB) <br /> guidelines <br /> SITE BACKGROUND <br /> Site Description The site is currently a United Gras gasoline station Iocated on the southeast <br /> corner of West Charter Way and Lincoln Street in a mixed commercial and residential area <br /> o a k l a n d CA of Stockton, California (Figure 1) The site layout consists of a service station building, a car <br /> San Ramon, CA sash, two generations of former dispensers, and an excavated former UST complex <br /> Sonoma, CA <br /> (Figure 2) The land surface slopes gently towards the San Joaquin River, which is <br /> ca,wa approximately 1 5 miles south of the site Texaco began retailing gasoline at the site in the <br /> Ernironmental 1960s and closed the facility in December 1998 <br /> Technology.Inc <br /> Aerkins <br /> Street <br /> P 0 Box 259 <br /> Sonoma,CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />