All material excavated from trenches and piled adjacent to the trench, or in highways, shall be piled and maintained in a safe and orderly manner. When the confines of the area through which the gas pipes are to be laid are too narrow to permit the piling of excavated material beside the trench, it may be necessary for the permittee to haul excavated material to a storage site and then rehaul it to the trench site at the time of backfilling. It shall be the permittee's responsibility to secure the necessary permission and make all necessary arrangements for all storage and disposal sites required. (1959 Code § 4-7-19)