No excavation shall be made with a cut face steeper in slope than two horizontal units of measurement per one vertical unit of measurement, except that the Building Inspector may permit an excavation to be made with a steeper cut face if an applicant demonstrates satisfactorily by means of appropriate subsurface exploration and the written opinion of a state-licensed professional engineer that the material making up the proposed slope of the proposed excavation, and the material underlying the proposed slope, are capable of standing on a steeper slope.
('91 Code § 151.30)  (Ord. 2222, passed 1-18-68)  Penalty, see § 152.99