Upon receiving the report specified in section 8-2-3 of this chapter, the city council shall ascertain the necessity of making such improvements, and if, in the opinion of the city council, the same should be made, an order shall be entered upon its minutes, giving the name of the owner, if known; if not known, it shall be listed to "unknown owners", with the description of the property affected and the nature of the improvement required, which shall designate that the improvement shall be made within thirty (30) days after service or publication of notice as provided in section 8-2-5 of this chapter. (2003 Code § 8-01-06)