Land within the 100-year floodplain elevation, as identified in Section 415.070, "FP" Floodplain District Regulations, of this Chapter, for the Caulk's Creek, Wild Horse Creek and the Hamilton, Fox, Tavern, Bonhomme, Carr and other perennial creeks or watercourses within the 100-year floodplains and floodways. For the purposes of this Section, the floodplain of a lot or tract of land shall also include any portions of the property where a site-specific, engineered study has been completed that indicates the existence of this floodway or floodplain, based upon the criteria established by Federal Emergency Management Agency and the City of Wildwood.