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Mr. Philip S. Isorena* 46 <br /> October 29, 1999 <br /> Page 3 <br /> protocol. Per the RWQCB's request, all analyses of groundwater samples will now be <br /> reported with PQL's of 0.5 µg/L. <br /> Project Schedule <br /> The schedule for the excavation task of Remedial Alternative B could be impacted by <br /> availability of contractors, weather delays, and scheduling conflicts due to AASC's <br /> requirement to minimize impacts to the limited available parking area at their facility. It <br /> is planned install the extraction wells and expand the treatment system capacity to <br /> accommodate the increased flow in November 1999. Trenching, pipe installation, and <br /> electrical work will be started as soon as practical thereafter. However, the schedule for <br /> piping installation work has not been established yet pending resolution of parking space <br /> logistics issues with AASC. It is expected to have the expanded GWETS up and running <br /> by February 2000. <br /> Please call me at our Oakland office at (510) 273-3623 or contact Mr. Werner Sicvol at <br /> (216) 586-5605 if you have any questions or require clarification. <br /> Very truly yours, <br /> PARSONS ENGINEERING SCIENCE, INC. <br /> Frederick C. Kintzer, C.E.G. <br /> Project Manager <br /> Attachments: <br /> Figure 1 - Proposed Additional Groundwater Extraction Wells <br /> Figure 2 - Simulated Hydraulic Head in Model Layer 2 <br /> Figure 3 - Simulated Hydraulic Head in Model Layer 3 <br /> cc: Werner A. Sicvol, BP Amoco Co. <br /> Lon K. Kitagawa, Applied Aerospace Structures Corp. <br /> Carol Oz, San Joaquin County Public Health Services <br /> AM ENDS WP.DOC <br />