No permit shall be issued for an excavation or fill to be made with a face steeper in slope than one vertical to three horizontal except that the Building Commissioner, with the written approval of the Village Engineer, may permit an excavation or fill to be made with steeper face if an applicant demonstrates satisfactorily by means of appropriate soil exploration and analysis and the written opinion of a registered professional engineer or architect where incidental to the practice of architecture that the materials are capable of standing on a steeper slope without creating any of the hazards described in §§ 151.03 and 151.04.
('69 Code, § 154.08) (Ord. C-474, passed 1-8-79)