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<br />',", <br /> <br />d. A 100-foot vegetated buffer area located adjacent to and <br />landward of the components listed in subsections a. through c. of <br />this section, and along both sides of any water body with perennial <br />flow. <br /> <br />(2) The RMA is defined as adjacent to the RP A and shall be composed <br />of: <br /> <br />a. The 100-year floodplain (AE and VE zones) as identified on <br />the Federal Emergency Management Agency Flood Insurance Rate <br />Map dated September 25, 2009; <br /> <br />b. Nontidal wetlands not connected by surface flow to tidal <br />wetlands, water bodies with perennial flow or other tidal waters; <br /> <br />c. Where the floodplain or nontidal wetlands exist outside of the <br />RP A then the extent of these features delineate the RMA. If these <br />features do not exist or do not extend at least 530 feet beyond the <br />RPA, the RMA is 530 feet from the landward edge of the RPA. <br /> <br />(3) The intensely developed area (IDA) is an overlay of the RPA and the <br />RMA as shown on the map entitled "Chesapeake Bay Preservation Areas, <br />Portsmouth, Virginia dated September 25, 2009. Modifications to RMA <br />and the RP A shown on the map must be approved by the City Council and <br />must be supported by documentation of the more accurate extent of the <br />land and water features. This area serves as a redevelopment area and shall <br />have one of the following characteristics: <br /> <br />a. Development has severely altered the natural state of the area <br />such that it has more than 50 percent impervious surface; <br /> <br />b. Public sewer and water systems, or a constructed stormwater <br />drainage system, or both, have been constructed and served the <br />area as of the original Chesapeake Bay Preservation Area Overlay <br />Ordinance adoption date of September 1, 1990. (This condition <br />does not include areas planned for public sewer and water or <br />constructed storm water drainage systems); or <br /> <br />c. Housing density is equal to or greater than ten dwelling units <br />per acre. <br /> <br />(c) The Chesapeake Bay Preservation Area (CBP A) Map showing the general <br />location of CBPAs should be consulted and, per section 9.1-9, a site-specific <br />determination of the Resource Protection (RP A) shall be performed by persons <br />contemplating regulated activities within the city. <br /> <br />(d) Portions of RP As and RMAs designated by the city council as-Intensely <br />Developed Areas shall serve as redevelopment areas. Areas so designated shall comply <br />