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1766 MONTE DIABLO AVENUE <br /> September 2, 3994 <br /> Page 3 i <br /> Task 4: Analyze and Interpret Data <br /> Analytical results of soil vapor and ground water samples, field measurements and <br /> observations should be evaluated to determine feasibility of the proposed remediation <br /> k <br /> method. <br /> Task S; Preparation of a Final Remediation Plan <br /> w <br /> M <br /> The final remediation plan should present results, findings; conclusions of the above <br /> activities, and a description of the proposed treatment system. The report should <br /> include at a minimum the following: <br /> Results of hydrogeologie measurements and predictions <br /> • <br /> interpretation and results of remedial feasibility study with results tabulated <br /> • preparation of an estimated vapor extraction and air sparging radii of influence map(s) <br /> * screening and cost comparison of remediation options <br /> - O recommendedremedialSolan'whiclt�,inctudes`description of the proposed treatment= t <br /> system, recommended vactium extraction rate, air sparging injection pressure and now <br /> rate, and the number and placement of air sparging points and vapor extraction wells. ; <br /> • engineering analysis including preliminary system design recommendations, estimated <br /> duration and costs for site cleanup, implementation plan and schedule and site safety <br /> plan t, <br /> 6 <br /> WALLACE•KUHL ` <br /> Prq k[! IR• 6 ASSOCIRMS INC/ <br />