An impact assessment report shall be submitted for the following:
A. Any proposed subdivision and/or land development involving a special
exception or variance.
B. Any land development which involves a project on more than 10,000
square feet of land or involves five or more dwelling units, leaseholds
or buildings.
D. Any commercial use of 5,000 square feet or greater (gross floor area).
E. Any institutional use of 20,000 square feet or greater (gross floor
area).
F. Any development proposed on environmentally sensitive lands.