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permit conditions or requirements. Trees shall be utilized in the project when vegetation is being established as appropriate to the site conditions and project specifications. Inclusion of native species in tree planting is preferred. f. Adaptation measures proposed for location within the Resource Protection Area shall meet the following conditions: 1. The selected adaptation measure shall be a nature -based solution that uses environmental processes, natural systems, or natural features identified as being appropriate for existing site conditions. 2. An identified adaptation measure shall be selected from one of the following sources: Chesapeake Bay program approved BMP list, the Virginia Stormwater BMP Clearinghouse, the VMRC Tidal Wetlands Guidelines, or be a project that is eligible for funding by the Virginia Community Flood Preparedness Fund Grant. Adaptation measures should consist of trees, vegetation, or stone, or enhance existing natural elements. 3. Adaptation measures approved for use in the RPA shall be designed, installed, and maintained in accordance with the applicable specifications for the selected adaptation measure. 4. The use of fill as a component of an adaptation measure may be permitted, provided it meets the following conditions: a. The grading and slope created by the use of fill shall be no greater than necessary based upon the project specifications and implemented in a manner that minimizes the impact of run-off. b. Fill shall have the necessary biogeochemical characteristics, including sufficient organic content, to support the growth of vegetation and adequate permeability to allow infiltration consistent with project specifications. C. The use of full shall not exacerbate stormwater run-off and lateral flow onto adjacent properties shall be controlled. d. Any impacts on the management of stormwater upland of the Resource Protection Area created by the use of fill shall be mitigated as necessary. e. The use of fill shall be consistent with chapter 14.1 (Flood Protection). 5. The preservation of existing natural vegetation, including mature trees, shall be maximized and land disturbance consistent with design specifications shall be minimized. 6. Adaptation measures shall comply with all federal, state, and local requirements, including the need for a water quality impact assessment. 7. Nothing in these provisions shall be construed to authorize approval or allowance of an adaptation measure in contravention of floodplain management requirements, including chapter 14.1 (Flood Protection). 13