(A) The governing body may require a drainage plan for any proposed subdivision. Adequate provision shall be made within each subdivision to provide for needed drainage facilities, and these provisions shall account for the ultimate development within the tributary area.
(B) A storm sewer plan shall be prepared prior to other utility plans. These plans shall give preferential engineering considerations to gravity flow improvements.
(C) Off-premise drainage easements and improvements shall be designed to provide for subdivision runoff into a natural channel.
(D) Low areas subject to periodic inundation or that fall within an area of special flood hazard as identified by FEMA, shall not be developed until evidence is provided to the governing body that:
(1) The nature of the land use will not impede surface water runoff and that the land will not be subject to appreciable damage by inundation;
(2) The area may be filled or improved in a manner so as to prevent the periodic inundation, provided that the fill does not retard the flow of surface waters or result in the increase of water level endangering life and property of others;
(3) Base flood elevations shall be established where not delineated by FEMA flood insurance rate maps; and
(4) Lowest floor elevations will be established to prevent damage to any structures.
(E) The governing body may require additional engineering information if they deem it necessary to make decisions regarding areas of questionable drainage.
(Ord. 10.9, passed - -2005)