If, within 30 days after the Director has given notice, as provided under § 9-5-2, the refuse or debris described in the notice is not removed, and the owner, lessee, tenant, or occupant has not appealed the notice to the City Manager, as provided under § 9-5-3, the Director may then remove, or cause to be removed, the refuse or debris and shall subject the owner, lessee, tenant, or occupant to liability as provided in § 9-5-9.