The slope of cut surfaces of permanent excavations shall not be steeper than two to one (2:1) horizontal to vertical ratio exclusive of terraces and exclusive of rounding described herein, except as permitted in SCC 12.08.070(A) and 12.08.280(A) for slopes less than five feet in total height. For cut slopes in excess of five feet in total height, slopes steeper than two to one (2:1) horizontal to vertical ratio will be permitted in competent bedrock or soils provided such slope inclinations and stabilization design specifications are in accordance with recommendations contained in the geotechnical or geological report. The bedding planes, foliation planes or principal joint sets in any formation when dipping towards the cut face shall not be daylighted by the cut slope unless the soils and geologic investigations contain recommendations for steeper cut slopes. Cut slopes shall be rounded into the existing terrain to produce a contoured transition from cut face to natural ground.