All permits or licenses may be revoked after the procedure set forth in Sections 11.48.070 through 11.48.090 of this chapter has been followed without positive results, for failure to correct causes of any suspension of any permit within the time limits set forth by the hearing officer. No suspension may be granted for more than thirty days. (Ord. 4883-NS § 1 Exhibit A, Ch. 10 Art. 5 § 1, 1976)