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C A M B R I A <br /> October 7, 1998 <br /> Mr. Harlin Knoll <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, 3rd Floor <br /> Stockton, California 95201-0388 <br /> Re: Soil Disposal Characterization Work Plan <br /> Shell-branded Service Station <br /> 420 West Kettleman Lane <br /> Lodi, California <br /> © WIC#204-4416-0202 <br /> Cambria Project#240-1346-001 <br /> Dear Mr. Knoll: <br /> On behalf of Equilon Enterprises LLC (Equilon), Cambria Environmental Technology, Inc. <br /> (Cambria)is submitting this work plan for a soil disposal characterization investigation at the site <br /> referenced above. Equilon plans to remove and replace the underground storage tanks (USTs)at the <br /> site. The objective of this work plan is to determine the condition of soil surrounding the USTs, <br /> dispensers,and associated piping and to pre-characterize excavated soil for immediate transportation <br /> off site during UST replacement activities. Presented below are a site summary,our proposed scope <br /> of work, and a schedule. <br /> SITE SUMMARY <br /> The site is an active service station located on the southeast corner of the intersection of Hutchins <br /> Road and West Kettleman Lane in a commercial area of Lodi, California(Plates 1 and 2). <br /> akland, CA In September 1989, Aegis Environmental (Aegis) drilled 15 soil borings in preparation for a <br /> Sonoma, CA proposed tank replacement project. Total petroleum hydrocarbons calculated as gasoline (TPHg) <br /> Portland, OR were detected in Boring B-8 at 1060 parts per million (ppm). All other borings were non-detect <br /> Seattle, WA (ND) for petroleum hydrocarbons with the exception of trace amounts of toluene and xylenes in <br /> Cambria Borings B-1, B-7, and B-9. The results of this investigation are documented in Aegis' October 16, <br /> Environmental 1989 Pre-Tank Replacement Site Assessment Results Report. <br /> Technology, Inc. <br /> 1144 65th Street <br /> Suite 8 <br /> Oakland, CA 946o8 <br /> Tel (510)420-0700 <br /> Fax(510)420-9170 <br />