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Page S td <br /> Trust of <br /> Mary Ci:ardella <br /> June 26, 2003 _ r�" 61� <br /> " • The interim cleanup approach using'a KVA C-Sparer o7or1e generator and bubbler will be <br /> prepared with a proposed location initially within the most '`heavily" contacted :area in <br /> the 35-50 foot depth. <br /> • Wright proposes drilling one boring for the bubbler well into a.location interpreted t--- have <br /> the higbes-t observed contaminants (possibly near and SlightlY doWn radi <br /> ezt of C.�dsliri <br /> monitoring well MW-2). This .location appears most heavily contaminated and 'hence <br /> would be the area of highest priority on the basis of the currently available upper ;nluifer <br /> (well slotted at 30-50 feet) and well data. <br /> • The bubbler apparatus would be installed in the borchole and operated ibr an initial period <br /> of SLN months to evaluate the performance of this approach over a t:wo-quarter per,ad for <br /> reduction of TFHG, Benzene and L27DCA concentrations. <br /> Wright will inc;orpora;tt- ties addendum site characterizztion and interim clean. �, <br /> ti wore. and fi. din s <br /> into the report of this site investigation for submittal to PHS EHD as outlined in the ,AF ril 25, <br /> 2003 workplan. Additional discussions and meetings as ncuded willbe scheduled to <br /> i�GUS4 <br /> results as the project moves forward. <br /> If you have any questions please call. <br /> Sincerely, E G <br /> �r �. F <br /> right Environmental Services, Inc. <br /> M 1262 c <br /> CERTIM <br /> E1lfGli�f f�� <br /> ?ohhn Lynch Christopher M. katnner 6EMM <br /> President C. E. G. 1262 <br /> OF <br /> Attachments: Figure 1. Proposed Exploratory CPT Boring Locations <br /> r <br /> f <br /> i4 <br /> Page-5 of 6 <br />