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M <br />went into a technical discussion of the velocity profiles <br />done on the energy sources and other factors affecting the <br />flushing of this marina - tidal action, wind action, the <br />shape of the marina, the "shelter" affect of the proposed <br />structures, etc., and explained how a catastrophic spill <br />could be prevented from entering the river by a screen of <br />air bubbles. He stated that all the methods being <br />considered have been verified in actuality. <br />Chairman Scurlock wished to know if Dr. Christensen was <br />working for the University of Florida or for Florida Land <br />Co., and Dr. Christensen answered that he is a Professor for <br />the University which has a contract with Florida Land to do <br />this research for them. Florida Land pays the expenses on <br />this project. <br />Commissioner Fletcher noted that the Doctor now had <br />indicated it would be possible to design a marina without <br />any adverse impact while in his previous analysis, he had <br />said a minimal impact. <br />Dr. Christensen stated that sometimes there are no <br />impacts at all and there are even cases where the marina <br />r. <br />actually helps purify the other waters. <br />Commissioner Fletcher asked about the impact of <br />buidings located close to the water's edge, and Dr. <br />Christensen stated that to get the full effect of the wind, <br />the setback should be figured at about 25 times the height <br />of the building. <br />He noted <br />these <br />are 15' <br />buildings; <br />they <br />have space between <br />them; and <br />they <br />are not <br />in the path <br />of the <br />dominant wind. <br />Jim Thomas, Biologist, next appeared and explained <br />about the permitting process, noting that they must obtain a <br />dredge and fill permit from the DER, as well as a federal <br />permit from the Corps of Engineers. The Corps requires a <br />large amount of data and sends it to a number of federal <br />agencies - the Coast Guard, EPA, U.S.Fish & Wildlife, <br />•1A 19 e'UUi� TS P�,F 667 <br />�2719�� <br />