The applicants shall have twelve months from the approval by the city council to complete the minimum requirements of the guidelines and shall file with the city clerk-treasurer a performance bond in the minimum sum of ten thousand dollars per acre for the performance of the minimum requirements and delegating to the discretion of the city administrator the authority to increase performance bond requirements, if in his opinion it is justified. (Ord. 1879, § 1, 2012; Ord. 1637, § 9, 2004.)