The City Engineer shall deny a grading permit where, in his or her opinion, the work as proposed by the applicant may endanger any property or any street or alley or fails to meet city standards. In determining whether the proposed work is likely to endanger any property, streets, or alleys, or create hazardous conditions, the City Engineer shall give due consideration to: possible saturation by rains, earth movements, run-off or surface waters and subsurface conditions such as the stratification and faulting of rock, and the nature and type of the soil or rock.
(`94 Code, § 151.38)