(A) In cases where the Planning Director determines the surface mining operations present a potential hazard to adjacent property, or where other hazardous conditions exist, the Planning Director may establish such interim slope requirements as are reasonably deemed necessary.
(B) The designed steepness and proposed treatment of the mined lands final slopes shall take into consideration the physical properties of the slope material, its probable maximum water content, landscaping requirements and other relevant factors. In all cases, reclamation plans shall specify slope angles flatter than the critical gradient for the type of material involved. Whenever final slopes approach the critical gradient for the type of material involved, the Planning Director shall require an engineering analysis of the slope stability.
(`78 Code, § 19.12.070.) (Ord. 2386 § 1 (part), 1999.)