An application to the City Planning Commission for a certification, authorization or special permit respecting a development, enlargement, or site alteration shall include a survey map, prepared by a licensed land surveyor and dated no more than two years prior to the date of filing an application, showing: 

(a)    existing topography at two foot contour intervals;

(b)    the location of all existing buildings or other structures and the location of all proposed buildings or other structures; 

(c)    the location of individual existing trees of six inch caliper or more;

(d)    the location of any elements of the open space network on or adjacent to the zoning lot; and

(e)    the location of any areas of no land alteration, streams, and natural watercourses;

and such other information as may be required by the Commission for its determination as to whether or not the certification, authorization or special permit is warranted.