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Ms.Margaret Lagorio,SJCEHD December 31,2003 <br /> Joe's Truck Plaza Project No.2033-15600-01 <br /> Work Plan Addendum <br /> Page 4 <br /> and analysis of the analytical data, Stratus will evaluate the depths and locations <br /> of the monitoring wells proposed in the original Work Plan. Stratus will modify <br /> the number, depths, and locations of the wells proposed in the original Work Plan <br /> as warranted, and will coordinate these changes with SJCEHD prior to installation <br /> of additional wells. <br /> Following completion of the proposed CPT and well installation activities, Stratus <br /> will prepare a letter report presenting the findings of the investigation, including <br /> subsurface conditions encountered during assessment activities, and the results of <br /> chemical analytical data from soil and groundwater samples collected during the <br /> field activities. The report will be submitted to SJCEHD prior to implementation <br /> of the rest of the proposed assessment activities and feasibility testing, and the <br /> data will be used to update the SCM. <br /> Given the recalcitrant nature of MTBE in the natural environment, the presence of <br /> MTBE in well MWO-2 located approximately 500 feet from the former UST <br /> complex, and the property owner's desire to move this project toward closure, <br /> Stratus continues to recommend immediate initiation of interim remediation. <br /> Stratus will modify the number and locations of the proposed ozone injection <br /> wells based on any changes in our understanding of the subsurface lithologic <br /> conditions after completion of the assessment activities, and these changes will be <br /> coordinated with SJCEHD, in writing, prior to implementing remedial activities. <br /> If you have any questions regarding this Work Plan Addendum, please call Gowri <br /> Kowtha at (530) 676-6001. <br /> Sincerely, <br /> 57-KATU5 ENVIRONMENT p GFS <br /> Stephen J. Carte4 R.G. �'5577 * o riS.d owtha,P.E. <br /> Project Manager �'� Q��c Se for Engineer <br /> Attachments: Figure 1 F on Map <br /> Figure 2 Site Plan <br /> Figure 3 Site Vicinity Map <br /> Appendix A Field Practices and Procedures <br /> cc: Mr. Jim Barton, Central Valley Regional Water Quality Control Board <br /> Mr. Kashmir Singh and Mr. Dalwinder Dhoot, property owners <br /> P:Uoe's Truck Plaza\Work Plans\loes wp addendum 123103.doc <br />