It shall be unlawful for any person to whom a permit may be granted to excavate the streets, alleys or public grounds, or any of them, in the city, for the purpose of laying pipes, wires or any kindred purpose, to remove from such streets, alleys or public grounds any of the earth, gravel, stone or other material excavated from such excavations which is not needed for the purpose of refilling the same, unless the same shall be done under the provisions of this section and §§ 30-71 and 30-72.
(1964 Code, § 33-25)