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(ii) The walls are substantially impermeable to the passage of <br /> water. <br /> (iii) The structural components are capable of resisting <br /> hydrostatic and hydrodynamic loads and the effects of <br /> buoyancy. <br /> (C) New construction, improvements to repetitive loss structures, and <br /> substantial improvement shall be required to provide adequate <br /> drainage paths around structures on slopes to guide floodwaters <br /> around and away from proposed structures. <br /> (3) Within Zones V and VE: New construction, improvements to repetitive <br /> loss structures, and substantial improvement shall comply with the <br /> standards of section 27 -23. <br /> (4) Within Zone A: New construction, improvements to repetitive loss <br /> structures, and substantial improvement shall comply with the standards of <br /> section 27 -24. <br /> [(5) Buffer zones: Areas bordering and within fifty feet of a special flood <br /> hazard ar as with base flood cicvations, depth numbcrs specified in fcct on <br /> the FIRM or other ar as that have been studied and identified with base <br /> flood cicvations or depth numbers. <br /> (A) For residential new construction, improvements to repetitive loss <br /> structures, and substantial improvements, the lowest floor shall be <br /> elevated to the bordering base flood elevation or depth number <br /> plus a freeboard of at least one foot. <br /> (B) For nonresidential new construction, improvements to repetitive <br /> loss structures, and substantial improvem• • , • <br /> shall be elevated or floodproofed to the bordering base flood <br /> elevation or depth number plus a freeboard of at 1 ast one foot. If <br /> the lowest floor is below the bordering base flood elevation or <br /> . - . quired freeboard, then a currently licensed <br /> professional engineer or architect in the State of Hawai`i shall <br /> develop and /or review structural design, specifications and plans <br /> • <br /> for the structure together with attendant utility and sanitary <br /> facilities such that: <br /> (i) The structure is watertight below the bordering base flood <br /> - - . . . .. - :. 'red frccboard. <br /> (ii) The walls arc substantially impermeable to the passage of <br /> water. <br /> (iii) The structural components are capable of resisting <br /> hydrostatic and hydrodynamic loads and the effects of <br /> buoyancy. <br /> (C) New construction, improvements to repetitive loss structures, and <br /> path around and away from proposed structures. <br /> (D) When topographical or ground elevation data, submitted by a civil <br /> engineer or land surveyor currently licensed in the State of <br /> 6 <br />