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(4) Sloe Stability Factog_gL safety. When required in this Title to provide site- specific geologic and engineering slope stability analysis, the following minimum slope stability factors of safety shall apply: (A) A minimum factor of safety of 1.5 against static deep seated failure. (I6) A minimum factor of safety of 1.5 against static surficial failure. (C) A minimum factor of safety of 1.1 against seismic failure._ (5) Temporary Cut Slopes at Setback Lines. Temporary cut slopes (i.e., for limited periods of time, slopes that are in the process of extraction prior to being backfilled) at setback lines shall not exceed one foot horizontal to one foot vertical, except that temporary cut slopes at setback lines to a maximum of one half of a foot horizontal to one foot vertical may be maintained if site-specific geologic and engineering analysis demonstrates through a slope 'stability analysis that the proposed temporary cut slopes will have a minimum slope stability factor of safety as required in Section 9-1415.3(k)(4). However, in the event that there are existing structures on the adjacent property (or the immediate potential for structures on the adjacent property), the excavation shall at no time be closer to the property fine than a line projected on a slope of one to one from the property fine to the toe of slope. (6) Final Slo es. Final cut and/or fill slopes shall not exceed two (2) feet horizontal to one (1) foot vertical, except as specified below: (A) Final slopes to a maximum of one and one-half feet horizontal to one foot vertical may be maintained when site-specific geologic and engineering analysis demonstrates through a slope stability analysis that the proposed final slopes will have a minimum slope stability factor of safety as required in Section 9-1415.2(k)(4), while demonstrating suitability for the proposed end use and protecting against erosion (by means of revegetation or other methods approved by the Development Services Division). 7. Fill Slooes. Fill slopes shall be constructed consistent with recommendations from a qualified civil/geotechnical engineer based upon site-specific geologic conditions. k. FENCING: Six-foot-high security fencing or an approved equivalent shall be required where slopes steeper than two feet horizontal to one foot vertical are created. (Development Title Section 9-1415.3 [1]) - I. SCREENING AND LANDSCAPING: Screening consistent with Chapter 9-1020 is required. (Development Title Section 9-1415.3[m]) (1) A landscaped berm is required. Adequate setback for maintenance shall be required, and sight distance at road intersections shall not be impaired. j M. PQNOING: All water utilized in the plant operation shall be disposed of behind a closed dike. (Development Title Section 9-1415.3rn]) -16-