1. No fill slope shall exceed a vertical height of one hundred (100) feet unless horizontal benches with a minimum width of thirty (30) feet are installed at each one hundred (100) feet of vertical height.

2. No fill shall be made which creates an exposed surface steeper in slope than two horizontal to one vertical unless the fill material is of such nature that a one to one slope may be permitted with the permission of the zoning administrator.

Exception: The planning commission in case an appeal is made may permit a fill to be made which creates an exposed surface steeper in slope than two horizontal to one vertical if the applicant can reasonably show the planning commission that the strength characteristics of the material to be used in the fill are such as to produce an equivalent degree of slope stability and sufficient strength characteristics to support the fill within reasonable settlement values so as to produce an equivalent degree of safety. (Ord. 111 §1, amended, 1985; Prior code §12-107-6(F)(15))