Performance guarantee. A performance bond, or other acceptable form of guarantee, approved by the City Planner as to form and sufficiency, to pay for the costs of removing the entire facility, if it is abandoned, and reclaiming the site to a preconstruction condition, shall be provided. For purposes of this section, a tower shall be deemed abandoned when there are not telecommunications facilities in operation on the tower for a period of greater than 90 days, unless an extension is granted by the Code Enforcement Officer due to damage to the structure by fire, weather or other similar cause. The amount of this performance guarantee shall be in an amount equal to 125% of the projected total cost of removing the entire facility and reclaiming the site to its preconstruction condition. Should the operation of the facility cease in the future, and the facility is dismantled and the site reclaimed by the owner and/or operator, the performance guarantee shall be returned to the owner and/or operator. The accepted form of surety shall be reviewed by the City Planner every five years, and renewed or increased when necessary.