(A) Dead leaves and other wastes from any vegetation may be burned upon the lot or parcel of ground upon which such waste has accumulated, if proper precautions are taken to prevent the spread of fire, provided that there is a person over 15 years of age assigned to watch such fire at all times, and provided further that no nuisance is created by such fire.
(B) Garbage and other combustible wastes may be disposed of within the building where it is accumulated or within a closed building accessory thereto situated on the same premises by complete incineration of such garbage or waste in such manner as to create no noxious odors, smoke or other nuisance, or by grinding or shredding such waste finely and disposing of it through pipes leading to a public sanitary sewer. All garbage or combustible matter disposed of in pipes leading to a public sanitary sewer shall have been ground or shredded to such a degree that all particles are carried freely under the flow conditions normally prevailing in the sewers into which such is deposited, with no particle greater than one-half inch in any dimension. All incinerators or grinders used for such disposal of wastes shall be approved by the Director of Public Works.
(1997 Code, § 15.14)