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<br /> (o.LfA- \to <br /> satisfied. Such certification shall be provided to the <br /> Floodplain Administrator. <br /> (3) All new construction and substantial improvement with fully <br /> enclosed areas below the lowest floor (excluding basements) that <br /> are usable solely for parking of vehicles, building access or storage, <br /> and which are subject to flooding, shall be designed to <br /> automatically equalize hydrostatic flood forces on exterior walls by <br /> allowing for the entry and exit of floodwater. Designs for meeting <br /> this requirement must exceed the following minimum criteria: <br /> (a) Have a minimum of two openings having a total net area of <br /> not less than one square inch for every square foot of <br /> enclosed area subject to flooding. The bottom of all <br /> openings shall be no higher than one foot above grade. <br /> Openings may be equipped with screens, louvers, valves or <br /> other coverings or devices provided that they permit the <br /> automatic entry and exit of floodwater; or <br /> (b) Be certified by a registered professional engineer or <br /> architect. <br /> (4) Manufactured homes shall also meet the standards in Section <br /> 41.5.4. <br /> Sec. 41.5.2. STANDARDS FOR UTILITIES: <br /> A. All new and replacement water supply and sanitary sewage systems shall <br /> be designed to minimize or eliminate: <br /> (1 ) Infiltration of flood waters into the systems; and <br /> (2) Discharge from the systems into flood waters. <br /> B. On-site waste disposal systems shall be located to avoid impairment to <br /> them, or contamination from them during flooding. <br /> Sec. 41.5.3. STANDARDS FOR SUBDIVISIONS: <br /> A. All preliminary subdivision proposals shall identify the special flood hazard <br /> area and the elevation of the base flood. <br /> B. All subdivision plans will provide the elevation of proposed structure(s) <br /> and pad(s). If the site is filled above the base flood elevation, the lowest <br /> floor and pad elevations shall be certified by a registered professional <br /> engineer or surveyor and provided to the Floodplain Administrator. <br /> C. All subdivision proposals shall be consistent with the need to minimize <br /> flood damage. <br /> D. All subdivision proposals shall have public utilities and facilities such as <br /> sewer, gas, electrical and water systems located and constructed to <br /> minimize flood damage. <br /> E. All subdivision shall provide adequate drainage to reduce exposure to <br /> flood hazards. <br /> Sec. 41.5.4. STANDARDS FOR MANUFACTURED HOMES: All <br /> manufactured homes that are placed or substantially improved shall be elevated on a <br /> Atty/Ord/Ord.223 <br /> 102704 14 <br />