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a. <br /> - <br /> r <br /> T <br /> Project 02260.04 IO April 1991 <br /> and wells will be monitored at that time to document the progress of the <br /> remediation. Extraction at an individual probe or wail will be <br /> discontinued when hydrocarbon vapor concentration has been reduced in the <br /> vicinity of that probe or well. <br /> Diagrams illustrating the expected shallow and deep zone capture radii <br /> for the site are given in Figures 3 and 4, respectively. In our opinion, <br /> the vapor extraction system design will allow for effective remediation <br /> of the majority of hydrocarbon-affec+ed soils beneath the site, <br /> PROJECT MANAGEMENT AND REVIEW AND REPORT WRITING <br /> Project Management will coordinate the system monitoring, review and <br /> submit the results of the monitoring to the regulatory agency to ensure <br /> compliance with regulations, and prepare brief bimonthly reports for <br /> Ultramar Inc. that include the results of the monitoring. <br /> Thank you for the opportunity to propose to install and operate a <br /> remedial system at this site. If you have any questions, please do not <br /> hesitate to call. <br /> Sincerely, <br /> EV+AY Technologies, Inc.; <br /> LJW 157���Y ti� ��l�S <br /> 7 IJ <br /> Christopher J. Peoples <br /> Project Engineer <br /> pbw <br /> Encl9sures: Figure I Proposed Vapor Extraction System <br /> Figure 2 Beacon Gas Station #69i Details <br /> Figure 3 Shallow Zone Ca,ture Radii <br /> Figure 4 Deep Zone Capture Radii <br /> cc: Mr. James Maughan, Regional Water Quality Control Board <br /> Mr. Steve.Raddigan, J-odi Fire Department <br /> 1 Ms. Eleanor Ratliff, San Joaquin Public Health Services <br /> J <br /> - 3 <br /> r <br />