To preserve the landscape in its natural state, the removal of trees, vegetation, rock, and soil should be kept to a minimum. Projects should be designed to minimize cut and fill areas, and grade changes should be minimized and kept in harmony with the general appearance of the neighboring landscape. All disturbed areas should be finished to a natural appearing configuration and planted or seeded to prevent erosion. (Ord. 90-5 § 2, 1990; Ord. 80-1 § 48, 1980.)