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. , . <br /> protection elevation; <br /> (c) the fill shall be protected against erosion and scour during flooding by <br /> vegetative cover, riprap, or other structural measure; <br /> , (d) the fill shall be composed of rock or soil and not incorporate debris or refuse <br /> materials; and, <br /> (e) the fill shall not adversely affect the flow of surface drainage from or onto <br /> nei hborin ro erties and when necess , storm water mana ement techni ues such as swales <br /> g g P P �'Y g q <br /> or basins shall be incorporated; or, <br /> ii. The building may be elevated in accordance with the following: <br /> (a) The building or improvements shall be elevated on stilts,piles,walls, or other <br /> foundation that is permanently open to flood waters; <br /> (b) The lowest floor and all electrical, heating, ventilating, plumbing, and air <br /> conditioning equipment and utility meters shall be located at or above the flood protection <br /> elevation; <br /> (c) If walls are used, all enclosed areas below the flood protection elevation shall <br /> address hydrostatic pressures by allowing the automatic entry and exit of flood waters. Designs <br /> must either be certified by a registered professional engineer or by having a minimum of one <br /> permanent openings on each wall no more than one foot above grade. The openings shall <br /> provide a total net azea of not less than one square inch for every one squaze foot of enclosed area <br /> subj ect to flooding below the base flood elevation; <br /> (d) the foundation and supporting members shall be anchored and aligned in <br /> relation to flood flows and adjoining structures so as to minimize exposure to hydrodynamic <br /> forces such as current, waves, ice and floating debris; <br />