If a property owner upon whom notice has been served pursuant to section 13-3-2 of this chapter to make the connections as provided for in section 13-3-1 of this chapter should fail or refuse to make such connections within the time provided for in such notice, then the city council may proceed to have said connections made upon a contract made and entered into for that purpose, and the cost of making such connections shall be assessed to the property owner and shall be collected in the same manner as other special assessments are collected, except that the whole amount of such assessments shall become due at once and shall not be payable in installments. (2007 Code § 44-3)