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19449 Riverside Drive,Suite 230,Sonoma,California 95476 <br /> NESTOCiA-ROVERS Telephone: 7079354850 Facsimile: 7079356649 <br /> nASSOCIATES www.CRAworld.com <br /> August 13,2008 <br /> Mr.Mike Infuma 67,—AW 1AiVIOP <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street Pe-7- -/p-da' <br /> Stockton,California 95202 <br /> Re: Revised CAP and Work Plan Due Date Extension Request <br /> Shell-branded Service Station <br /> 2494 East Fremont Street <br /> Stockton,California <br /> SAP Code 136141 <br /> Incident No.98996181 <br /> Agency Case No.506171 <br /> Dear Mr.Infurta: <br /> Conestoga-Rovers & Associates (CRA) prepared this due date extension request on behalf of Equilon <br /> Enterprises LLC dba Shell Oil Products US(Shell)in response to your July 23, 2008 letter to Shell which <br /> was received by CRA on July 29, 2008. The letter was prepared in response to our July 10, 2008 <br /> Corrective Action Plan and Response to Request for Interim Remedial Action. The letter requested <br /> additional information to support the selected remedial alternative (insitu chemical oxidation [ISCO])and <br /> proposed bench scale testing(BST)and site assessment activities. The letter established September 1,2008 <br /> as the due date for submittal of a revised Corrective Action Plan(CAP) and Site Investigation Work Plan <br /> (SIWP). CRA and Shell personnel have reviewed the letter and have determined that additional time is <br /> needed to properly perform the evaluations that you suggest and to coherently prepare our response so that <br /> we meet your needs for approving the CAP, BST, and SIWP. In addition, Shell's technical review team <br /> (Shell Global Solutions) requires a 30-day review period for any document related to remedial <br /> recommendations. Based on these items,we have determined that we cannot meet the established due date. <br /> We therefore respectively request that the due date for a response to your letter be extended to <br /> October 15,2008. We will expedite our efforts as best possible and will submit the document to you prior <br /> to that date if feasible. <br /> If you have any questions regarding the contents of this document, please call Mike Murphy at <br /> (707)933-2367. <br /> Sincerely, <br /> Conestoga-Rovers and Associates <br /> Mike Murphy <br /> Project Manager <br /> cc: Mr.Denis Brown,Shell <br /> IaSonoma.Shell\Stockton 2494 E Frenant\CORRESPONDENCEVwg 08 Extension Request.doc <br /> E1.7 <br /> Employment <br /> Opponun0 Employer <br /> Worldwide Engineering,Environmental,Construction,and IT Services <br />