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fi <br /> 100 Pine Street, 1 Oth Floor <br /> San Francisco, CA 94111 <br /> 1415] 434-9400 • FAX 14153 434-1365 GEOMATRIX <br /> I <br /> 13 July 1994 ' <br /> Project C2677 <br /> mz <br /> R'-F <br /> f Ms. Karen Synowiec SEP <br /> L Chevron Research and Technology Company <br /> 1003 West Cutting Boulevard =��«U� � ( T L. HEAL"P{ <br /> �-8 <br /> .a <br /> 8 <br /> Richmond, California 94804-0054 PERM ITISL*R IC <br /> Subject: Work Plan for Screening Health Risk Assessment <br /> Dividend Property; Tracy, California <br /> Dear Ms. Synowiec: <br /> ` This work plan has been prepared by Geomatrix Consultants, Inc. (Geomatrix) on behalf of <br /> Chevron Pipe Line Company (Chevron) and Texaco Trading and Transportation, Inc. <br /> (Texaco) to describe procedures for conducting a screening health risk assessment (Screening <br /> HRA) at the Dividend property in Tracy, California. The results of the Screening HRA will <br /> be used in the evaluation of possible future remedial approaches at the site. <br /> The work plan provides the following elements: a summary of our understanding of <br /> subsurface conditions at the' site, a preliminary conceptual model for the risk assessment, a <br /> discussion of current data gaps relative to the risk assessment and methods proposed to collect <br /> such additional data, required components of the Screening HRA; and reporting and schedule <br /> estimates._ <br /> Please call either of the undersigned if you have any questions or require--_additional <br /> information. We will implement the work described herein within two weeks of your <br /> authorization to proceed. -We appreciate the opportunity to provide our environmental <br /> consulting services to Chevron and Texaco. , <br /> Sincerely yours, <br /> GEOMATRIX CONSULTANTS, INC. <br /> Dawn A. Ze o C.E. - Kqn'�o or P. Brb, / y y <br /> Senior Hy rogeologist r Toxicoigist <br /> DAZ\GPB\mc <br /> CONTR\C2677WK.LTR <br /> Enclosure <br /> cc: Mr. Don O. Culbertson, Chevron.Pipe Line Company <br /> Ms. Karen Lew, Texaco Trading and Transportation, Inc. <br /> Geomatrix Consultants, Inca . <br /> Engineers,Geologists,and Environmental Scientists <br />