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n <br /> CAMBR ! A RIECEffED <br /> N O V 13 2001 November 7, 2001 <br /> ENVIRONMENT HEALTH <br /> Mr Jeffery Wong PERMIT/SERVICES <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 Report <br /> Former Shell Service Station <br /> ' 1313 East Charter Way <br /> Stockton, California <br /> SAP Code 136138 <br /> Incident No 98996179 <br /> SJCPHS/EHD Site Code 000692 <br /> Dear Mr Wong <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equiva <br /> Services LLC (Equiva) to document site investigation activities at the referenced site Cambria <br /> followed the scope of work outlined in our May 25, 2001 Site Investigation Work Plan and <br /> comments and conditions issued in San Joaquin County Public Health Services, Environmental <br /> Health Division's (SJCPHS/EHD)May 31, 2001 work plan approval fax <br /> SITE BACKGROUND <br /> Site Description The subject site is located on the northeast corner of East Charter Way and <br /> Airport Way in a mixed commercial/residential area of Stockton, California (Figure 1) The <br /> former site layout included two station buildings, three fuel underground storage tanks (USTs), <br /> and four dispenser islands(Figure 2) The service station was demolished during April 1999 <br /> UST Removal On April 29, 1999 three 10,000-gallon single-wall steel gasoline USTs were <br /> removed from the site The tanks were found to be in good ,condition with no obvious <br /> indications of failure Soil samples were collected from the bottom of the UST excavation and — <br /> beneath the former fuel dispensers and product piping,at locations specified by SJCPHS/EHD <br /> Oakland CA staff A total of 14 soil samples were collected All of these samples were analyzed for total <br /> San Ramon CA petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, and xylenes <br /> Sonoma GA <br /> (BTEX), and fuel oxygenates (methyl tertiary butyl ether {MTBE], tertiary butanol [TBA], <br /> Cambria di-isopropyl ether [DIPE], ethyl tertiary butyl ether [ETBE], and tertiary amyl methyl ether <br /> environmental [TAME]) <br /> Technology,Inc <br />,i`} <br /> erkms Street �_N <br /> P 0 Box 259 ~0 {.f <br /> Sonoma CA 95476 \ 1 <br /> Tel(707)935-4850 �� �N, <br /> Fax(707)935-6649 — l� <br />