All excavations made under this chapter shall be backfilled only under the supervision of the public works director, or authorized representative, who shall cause such backfilling to be inspected during the course thereof. The public works director shall be notified by the holder of the permit under this chapter when such backfilling work is to commence. All inspection fees due, as set forth in this chapter, shall be paid by the holder(s) of the permit(s), and if not paid within eight weeks of completion, the same shall be charged against the deposit or faithful performance bond. The public works director may require a deposit of anticipated inspection fees prior to issuance of the permit. (Ord. 1970 NCS §3 (part), 1994; Ord. 1369 NCS §2 (part), 1979.)