The city council shall consider the cost report and account at the time set for hearing, together with any objections or protests by any interested parties. Any owner of land or person interested therein may present a written or oral protest or objection to the report and account. At the conclusion of the hearing, the city council shall approve the report and account as submitted, or as modified or corrected by the city council. The amounts so approved shall be liens upon the respective lots or premises, upon which abatement was performed, and the city council shall adopt a resolution assessing such amounts as liens upon the respective parcels of land as they are shown upon the most recent available property assessment roll, and determining that such weeds, grasses, dead trees, dead shrubs and waste matter constitute a public nuisance. (Ord. 494 §2 (Exh. B), 2005).