Each Permittee shall submit and maintain with the Department a bond, cash deposit, or other security acceptable to the Department securing the faithful performance of the obligations of the Permittee and its agents under any and all Surface-Mounted Facility Site Permits issued to the Permittee under this Article 27. The deposit shall be in the sum of $25,000 in favor of the "Department of Public Works, City and County of San Francisco." If, in accordance with this Article 27, the Director deducts any amounts from such a deposit, the Permittee must restore the full amount of the deposit prior to the Department's issuance of a subsequent Permit. The Department shall return the remainder of the deposit to the Permittee should Permittee cease to operate any Surface-Mounted Facilities in the Public Right-of-Ways.