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Commissioner Lyons wished to know where we get our informa- tion about wave height, and Chief Environmental Planner Challacombe -advised it is from the Flood Insurance Emergency Management (FIMA) Maps which we were also required to adopt through our Stormwater Management ordinance. Commissioner Lyons asked if that includes wave heights for various force hurricanes, and Planner Challacombe stated that it does not, but he believed the DNR has an on-going study to provide that information. Commissioner Lyons pointed out that the ordinance says you have to allow for the storm surge, and he was curious how we can do a job with the proposed ordinance if we don't know this. Commissioner Wodtke wished to know who will enforce this, and Planner Challacombe advised it will be the Building Department. Director Keating noted that the Flood Insurance Administra- tion uses their own determination to decide on the velocity or "V" zone, and Commissioner Wodtke felt that is what we disagreed with and, in fact, spent money to prove they were wrong. Wayne Russ of the Building Department pointed out that this ordinance has been thrust upon us with very little time to prepare, and the only criteria we now have are the FIMA guide- lines in conjunction with our local stormwater management ordinance. Attorney Barkett confirmed that the DCA sent down a model ordinance to suffice until they complete their studies. Considerable discussion ensued regarding the minimum elevation required being "above the elevation of the design breaking wave crests;" the elevation of the building floor in the "V" zones being 14' in the air; how that elevation is determined, etc.; and Director Keating advised it is measured either from the existing grade or the grade that is required to be set by the flood standards we have. The cost impact of this requirement on single family homes and also the cost to the Building Department for enforcement came 31 BOOK 63 F":jf 744 LJE 8 2 6 1986