Existing site conditions, which shall include the location of existing buildings and, if applicable, water bodies, floodplains, and floodplain boundaries as determined by the Federal Emergency Management Agency, watercourses, marshes, rock outcrops, wooded areas, existing vegetative cover, all trees eight inches in diameter or greater at a height of 4 1/2 feet above the ground, and other significant existing features on the site. This submission shall include a report of any trees of the above-stated dimensions that have been removed within a twelve-month period prior to the subdivision application, along with a tree replacement plan satisfactory to the Superintendent of Buildings.