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4. ADDITIONS/DELETIONS TO THE AGENDA/EMERGENCY <br />ITEMS -NONE <br />5. PROCLAMATIONS AND PRESENTATIONS <br />S.A. PRESENTATION BY GEOSYNTEC — UPDATE ON THE GIFFORD LANDFILL <br />CONTAMINATION AND REMEDIATION <br />Director of Utilities Erik Olson reviewed the backup memorandum of January 27, <br />2009, pertaining to contamination found at the former Gifford Road Landfill, which operated in <br />the late 1960's and 1970's. He reported that the Florida Department of Environmental <br />Protection (FDEP) had ordered the clean-up, and that Himanshu Mehta, Managing Director of <br />the Solid Waste Disposal District (SWDD), has been the contact person working with the FDEP. <br />Director Olson divulged that staff's efforts have been directed solely towards identifying the <br />contamination, and the ultimate cleanup, and not directed towards finding the originator of the <br />pollution. Director Olson thereafter introduced Jim Langenbach to speak regarding the <br />remediation efforts which are being undertaken by Geosyntec, the County's Environmental <br />Consultant. <br />Jim Langenbach, PE, Geosyntec Consultants, through a PowerPoint presentation <br />(copy on file), provided an overview of the Landfill's history, and a chronology of Geosyntec's <br />actions relative to excavation and remediation of the contaminants, CVOC (chlorinated volatile <br />organic compound) and TCE (trichloroethylene), which were found at the old Gifford Road <br />Landfill. He discussed the "Big Dig", which was an aggressive source removal conducted in <br />2004, and outlined Geosyntec's future plans towards the ultimate goal of site cleanup and <br />closure, and which included the installation in 2008 of a bio -barrier treatment wall, which uses <br />vegetable oil for filtration. He thereafter responded to questions from the Board regarding the <br />bio -barrier process; whether the source of contamination has been identified; the process for <br />2 <br />February 3, 2009 <br />