No person shall have or permit on any premises owned or occupied by him/her any open cisterns, cesspools, wells, unused basements, excavations or other dangerous openings. All such places shall be filled, securely covered or fenced in such manner as to prevent injury to any person and any cover shall be of a design, size and weight that the same cannot be removed by small children. Building or Zoning Code fencing requirements regarding excavations shall be complied with.