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The Commissioners posed questions to Mr. Walther regarding the different sand grain <br />sizes, which sand would be closest to the native beach, the overfill ratio, the significance of the <br />volume reduction, whether the existence of the reef was considered during the first analysis, and <br />whether the reef would continue to be monitored. <br />Mr. Walther and Tim Fontaine, Coastal Technology Corporation, clarified that the <br />original sand samples submitted by the bidders was being staged for submission to the agencies, <br />with the exception of Fisher Mines, who had a slight modification in grain size. <br />Discussion ensued regarding the timing of the beach project, the process that would be <br />required if the Board would change the sand source or sand quality, and model predictions of <br />sand migration. <br />Vice Chairman Flescher called a break at 12:41 p.m. and reconvened the meeting at 1:16 <br />p.m., with all members present. <br />Robert Brantley, P.E., FDEP Bureau of Beaches and Wetland Resources, (via <br />teleconference) addressed the Commissioner's questions as to whether the project could be <br />redesigned to put 472,000 cubic yards of sand on the beach in the upcoming season by using <br />upland sand, placing more sand in the northern half of Sector 3 to allow for the sand to migrate <br />south, if the shape of the sand grain (offshore versus upland) would give a natural sediment <br />advantage, hardbottom impacts, responses to the threat of reef impacts, and whether armoring <br />and hardening the beach would be the solution to protecting the beach from erosion. <br />Mr. Brantley related that Indian River County had established a long term program of <br />managing and maintaining their beaches, and in the past had used upland source material, which <br />performed very well. He made it known that County staff did an excellent job of getting the very <br />25 <br />October 13, 2009 <br />