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(1) Ports; (2) The intake and outfall structures of power plants, water treatment plants, sewage treatment plants, and storm sewers, including outfalls for required stormwater management best management practices; (3) Marinas and other boat docking structures; (4) Beaches and other public water -oriented recreation areas; and (5) Fisheries or other marine resources facilities. Wetlands means tidal and nontidal wetlands. Sec. 9.1-4. Chesapeake Bay Preservation Area Overlay District Map; applicability. (a) The boundaries of the district are hereby established as shown on the map sheet entitled "Chesapeake Bay Preservation Areas, Portsmouth, Virginia," dated November 25, 2025, which accompanies and, together with all explanatory material thereon, is hereby declared to be a part of this chapter, the said map sheet hereinafter being referred to as the Chesapeake Bay Preservation Area Map. Modifications to the RMA and the RPA shown on the map sheet must be approved by the director of planning and must be supported by documentation of the more accurate extent of the land and water features. (b) The Chesapeake Bay Preservation Area Overlay District shall apply to all lands identified and designated as CBPAs by the city council, as shown on the Chesapeake Bay Preservation Area Map. (1) At a minimum the RPA shall include: a. Tidal wetlands; b. Nontidal wetlands connected by surface flow and contiguous to tidal wetlands or water bodies with perennial flow; c. Tidal shores; and d. A 100 -foot vegetated buffer area located adjacent to and landward of the components listed in subsections a. through c. of this section, and along both sides of any water body with perennial flow. (2) The RMA is defined as adjacent to the RPA and shall be composed of: a. The 100 -year floodplain (AE and VE zones) as identified on the Federal Emergency Management Agency Flood Insurance Rate Map dated August 3, 2015; b. Nontidal wetlands not connected by surface flow to tidal wetlands, water bodies with perennial flow or other tidal waters; C. Where the floodplain or nontidal wetlands exist outside of the RPA then the extent of these features delineate the RMA. If these features do not exist or do not extend at least 530 feet beyond the RPA, the RMA is 530 feet from the landward edge of the RPA.