Before any property in private ownership shall be accepted for inclusion in the Conservancy District, the petitioner shall provide the following:
   A.   A survey of the property and a legal description of the property. Such survey shall be prepared by a registered land surveyor.
   B.   A topographic map with contour lines designated at an interval of five feet (5') or less.
   C.   A site plan indicating the location of all trees of fifteen inches (15") in diameter or more, as well as other environmentally significant features.
   D.   An agreement, acceptable to the City Council, which specifies the length of time such petitioner wishes to have his/her property remain in the Conservancy District. Under no circumstances shall the time period be less than five (5) years. (1971 Code § 28-68; amd. 2000 Code)