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V <br /> Chevron <br /> Chevron <br /> Chevron U.S.A.Products Company <br /> Ist 6001 Bollinger Canyon Road <br /> D' Building L <br /> San Ramon,CA 94583 <br /> PO.Box 04 <br /> Se0 <br /> San Ramon,CA 94583-0804 <br /> November 9, 1995 <br /> v`G�S Marketing-Northwest Region <br /> MVV NM�SECZ Phone 510 842 9500 <br /> t <br /> Mr..Ron Rowe <br /> San Joaquin County Public Health Services <br /> P.O.Box 388 <br /> Stockton,CA 95201-0388 <br /> Re: Chevron Station#9-1452,334 E. Main St.,Ripon; CA <br /> Attached Workplan(Pacific, 11/8/95) <br /> Dear MT.Rowe: <br /> Please find attached a workplan dated November 81 1995 which was prepared by Chevron's consultant, <br /> Pacific Environmental Group,Inc. (Pacific),,.to describe corrective action measures at the subject site. <br /> Pacific's workplan proposes the drilling of eighusoil'borings and the-subsequent installation of <br /> groundwater monitoring wells into four of the borings.The.workplan also describes all associated soil and <br /> groundwater sampling which will occur,during drilling: <br /> As stated in the workplan,Pacific will begin the,permitting process as.soon as approval is received from <br /> your agency. Actual drilling will begin within one week of obtaining°ihe necessary permits: A subsequent <br /> report discussing Pacific's findings will be issued approximatelysix weeks from completion of fieldwork. <br /> Verification monitoring of groundwater will be initiated,on a quarterly frequency beginning with the first <br /> quarter following'the issuance of Pacific's report of findings.`Upon review of Pacific's data,Chevron will <br /> evaluate the need for further correctiveaction and will submit to your-agency our recommendations for <br /> such;as well as,an appropriate schedule for any future work to be performed. <br /> Chevron would appreciate your-concurrence to the proposed well/boring locations as soon as possible. The <br /> approved locations will be provided to Wendt Construction so that pilot holes can be formed for drilling <br /> access in the new concrete surface,that is to be poured during the,first week of December. <br /> It is-anticipated that the submittal of this corrective.action workplan satisfies your expectations of such as <br /> was discussed during our meeting at your.offices on October 25, 1995.If further information is required, <br /> please contact me,directlyat(510)'842-8695. <br /> Sincerely, y� <br /> }t h <br />