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k" KLEINFELDER <br /> 2 Due to the continuing presence of floating product in MWA, Kleinfelder recommends <br /> additional purging and removal of any product layer in MW-1 between future quarterly <br /> sampling events <br /> 3 Kleinfelder recommends conducting a one-day dual-phase (soil vapor and water) <br /> extraction test to evaluate the feasibility of remediating impacted groundwater and soils <br /> with the technology Data will be obtained by performing dual phase extraction (DPE) <br /> testing in MW-1 Please note although this Is an interim measure, sites have been cleaned <br /> up using a vacuum truck over multiple events Based on evaluation of this interim measure <br /> a better understanding of the best applicable future remedial options can be assessed The <br /> results can be used to qualitatively evaluate an estimated soil permeability and a theoretical <br /> effective radius of influence(ROI) <br /> 4 Kleinfelder recommends that a copy of this report be submitted to San Joaquin County <br /> EHD and the CVRWQCB for their review and comment <br /> 5 The purge water currently stored on-site should be evaluated and properly disposed of by <br /> the Client Kleinfelder can assist the Client In the disposal process at an additional charge If <br /> requested by the client <br /> This report, and the conclusions and recommendations resented in this Executive Summary, are <br /> p p �' <br /> subject to the "Limitations" presented in Chapter 7 of this report Any party (other than General <br /> Mills or regulatory agencies having enforcement jurisdiction for this site) who would like to use <br /> this report shall notify Kleinfelder, Inc of such intended use in writing for permission <br /> 28209 T06/ST05 8717/LTV 1v Page 10 of 11 <br /> ©2005, Kleinfelder, Inc June 23,2005 <br />