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MAY 0 s 200 <br /> CONESTOGA-ROVERs EN'ulP.t?f� 4ENT HEALON <br /> &ASSOCIATES <br /> PERIIA/SERVICES <br /> i May 7,2008 <br /> Ms.VictoriaT McCartney <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 Main Street <br /> Stockton,California 95202-3029 <br /> Re: Proposed Changes to Work Plan Deliverable <br /> Olympian JV(Jimco Truck Plaza) - <br /> 1022 East Frontage Road(formerly 22502 South Highway 99) <br /> Site Code: 1604 <br /> Dear Ms. McCartney: - <br /> Based on our conversation today and on behalf of Olympian JV, Conestoga-Rovers&Associates Inc. <br /> _(CRA)wishes to confirm the change to the work plan deliverable requested in your recent letter dated <br /> January 31,2008. ' <br /> As stated in your letter, CRA was requested to submit a SVE/AS System Installation Work Plan by <br /> May.,.l,"2008. , Recent MTBE investigation results appear to have affected some of the earlier <br /> conclusions that provided following the SVE pilot testing in 2005. Taking into consideration the <br /> recent MTBE dateCRA proposes to submit a Feasibility Study in lieu of the system installation work <br /> plad to ensure that the most effective remedial approach is being implemented. CRA proposes a <br /> revised report submittal date of June 30, 2008. <br /> Please call me at(510)420-3327, if you have any questions or concerns. <br /> Sincerely, <br /> Conestoga-Rovers &Associates, Inc. <br /> Ron"Scheele, PG <br /> Senior Project Manager _ <br /> cc: " Ms.Janet Heikell Olympian JV, 1300 Industrial Road, Suite 2,-San Carlos,California 94070 <br /> Mr. James L.L. Barton, RWQCB,Central Valley region, 11020 Sun Center Drive, Suite 200, Rancho , <br /> -Cordova,California 95670 <br /> IAlR\0lympian\1022 Frontage Road,Ripon\Correspondence\agency letter 05-07-08.doc - <br /> Worldwide Engineering,Environmental,Construction,and IT Services <br />