A. Definition. A floodplain is an area of special flood hazard subject to a one percent or greater chance of flooding in any given year (commonly known as the one hundred (100) year flood) as designated by the Federal Emergency Management Agency.

     B. Subdivision.

     1. Subdivision applications, including subdivision variance, incorporating land within a floodplain shall be accompanied by a floodplain hydrology report prepared by a registered professional engineer which establishes the water surface elevation of a flood with a one percent chance of occurring in any given year.

     2. The subdivision plat shall show the contour and elevation of the floodplain which shall be identified as the "Special Flood Hazard Area--100 Year Floodplain" or similar informational notation. A plat note shall also appear on the plat which advises that "A Hazard Area Development Permit and/or compliance with additional floodplain regulations may be required prior to development in the Flood Hazard Area" or similar informational notation.

     C. Utilities.

     1. All new and replacement water supply systems shall be designed to minimize or infiltration of floodwaters into the system;

     2. New and replacement sanitary sewer systems shall be designed to minimize or eliminate of floodwaters into the systems and from the system into floodwaters; and

     3. On-site disposal systems shall be located to avoid impairment to them or contamination to them during flooding, as determined by the City-County Health Department and/or other agencies having jurisdiction.