In the event charges for the removal or abate- ment of a public nuisance are not paid within 30 days after the receipt of a statement of charges as provided for in § 95.18, such charges shall become a lien upon the land or premises where the public nuisance existed and shall be collected as unpaid taxes, as provided in G.S. § 160A-193.
('75 Code, § 9.35)