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I, <br /> I <br /> 5-- You stated that the relative cost effectiveness of <br />' vapor extraction vs . excavation has not been <br /> sufficiently established. Per the attached AGE <br /> I letter, the estimated cost of extraction is <br /> $150 , 000-$200 , 00 and is considered impractical given <br /> the depth of contamination and the site <br /> characteristics . k <br /> 6- You noted that groundwater remediation analysis was <br /> not included in the CAP. This was no-1 done because <br /> the recent levels of contamination in :'the water have <br /> been so low that further remediation efforts were riot. <br /> Econsidered necessary. Please seej�the :;attached l <br /> AGE letter in this regard. f <br /> I trust this answers the questions1yourhave raised and <br /> r that upon receipt of the addenduml�fxom AGE that you <br /> will have in hand all the information you need to <br /> specify which remediation approach you!Iwish. us to put <br /> out to bid. I look forward to receiving Your <br /> I directions in this regard. �{ <br /> I <br /> I� <br /> Sincerely yours , <br /> I'. onathan Marlowe Ea <br /> I ,I <br /> _ . . _JM:ce. <br /> Encl . <br /> �r <br /> E� I4 <br /> F <br /> i' <br /> IF <br /> Ij < <br /> hI� , <br /> .a <br /> jlp <br /> I 11 <br /> r � <br />