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A <br /> GROUNDWATER <br /> TECHNOLOGY, INC. 4057 Par,Chicgo Kghwziv,Concord.CA 94520(415)6 2337 <br /> FAX:t4151 685-9148 <br /> October 15, 1992 <br /> Revised November 3, 1992 <br /> Project No. 023202258 <br /> Mr. Lon Kitagawa RECEIVED <br /> BP Chemical NOV 91992 <br /> Advanced Materials Division <br /> P.O. Box 6189 ENVIRONMENTAL.HEALTH <br /> Stockton, California 95206 K"M1tl §'r-"VIoFq <br /> RE: Corrective Action Work Plan <br /> BP Chemical Facility (SJCEHD Site Code 2042) <br /> 3437 South Airport Way <br /> Stockton, California <br /> Dear Mr. Kitagawa: <br /> Groundwater Technology, Inc. has prepared this Corrective Action Work Plan which describes the <br /> planned soil remediation (overexcavation) activities at the BP Chemical facility at 3437 South Airport Way <br /> in Stockton, California Because these planned activities are defined as Corrective Actions according to <br /> the California Code of Regulations (CCR) Title 23, Division 3, Chapter 16, Article 11, this Work Plan was <br /> i►.r prepared in anticipation of submittal for public notification by the San Joaquin County Environmental <br /> Health Division (SJCEHD). This Work Plan presents a brief site history followed by a description of the <br /> planned activities (scope of work) and anticipated schedule. <br /> SITE HISTORY <br /> The BP Chemical facility owned and operated a gasoline underground storage tank (UST) and fuel <br /> dispenser system which was removed before January 1991. After the UST had been removed, SP <br /> Chemical retained Groundwater Technology to conduct a limited environmental assessment to evaluate <br /> the extent of petroleum hydrocarbons in the soil and groundwater. The results of the assessment <br /> conducted by Groundwater Technology indicated that the soil immediately adjacent to the former UST <br /> contained detectable concentrations of petroleum fuel constituents. On the basis of the available <br /> analytical results, it appears that the groundwater beneath the BP Chemical facility has not been affected <br /> by the operation and storage of petroleum fuel hydrocarbons. <br /> Because petroleum fuel hydrocarbons were detected in soil from the former UST excavation, <br /> Groundwater Technology recommended additional excavation to remove and dispose of the affected <br /> soil. In a letter dated June 17, 1992, the SJCEHD concurred with the recommendations for the <br /> overexcavation as an appropriate remedial/corrective action. The SJCEHD requested the preparation <br /> and submittal of this work plan for public notification. <br /> Offices throiwhout the U.S..Currudu and Overseas <br />