New grading, excavations and fills, or changes, additions, repairs or alterations made to existing excavations and fills, including the construction of berms, shall conform to the provisions of this subchapter, except that this subchapter shall not apply to:
(A) Work in an existing street or alley.
(B) Extraction and related activities under the provisions of a use and occupancy permit for such use as landfill operations.
(`94 Code, § 151.18)