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- <br /> i <br /> P <br /> j, H. KLEINFELDER &ASSOCIATES <br /> File: PW86--10.31/14:381 <br /> I r- July 29, 1986 <br /> Page 2 <br /> B. Approach <br /> 1. Assessing the extent of ground water contamination will <br /> be achieved using additional information obtained from <br /> sampling new and existing ground water monitoring <br /> welts. The additional data will be used to design a <br /> grovnd water remediation program. <br /> 2. Based an the information previously obtained from JHK&A <br /> site studies and from other successfully demonstrated <br /> remedial programs for this type of contamination in <br /> J this lithology, vapor phase extraction has been <br /> identified as a tested/proven technology. This <br /> technology is not available off--the-shelf and must be <br /> custom-designed for the site geology, conditions, and <br /> contaminants to minimize unnecessary costs and achieve <br /> the desired removal efficiencies. <br /> III. SCOPE OF WORK <br /> i <br /> The scope of work outlined in this proposal includes the <br /> implementation of those recommendations from a previous report <br /> prepared by J.H. Kleinfelder & Associates. (Re-f. "Soil <br /> Assessment Report" , March 18, 1986. ) <br /> However, please note that for reasons of cla_ity, the <br /> recommendations listed have been separated in' , two phase:; with <br /> Phase I including well installation, development, sanuIing, <br /> analysis, conduct of a 24-hour pump test, and tank dispos;..I. <br /> i Phase II consists of the vadose zone extraction system design <br /> including a field test to gather necessary design data. <br /> The details of this work plan are as follows: <br /> PhASE I Ground Water Monitoring Program <br /> Task 1 -- Well installation <br /> ' 1. Install three new monitoring wells. See Plate 1 for <br /> proposed locations. <br /> ^T ---- - - <br /> [Note change in-report recommendations -from--four new--- - <br /> wells to three new wells. ) <br />