To insure that sites are cleaned up after the temporary activity has ended the community development director may require an applicant to deposit with the city the sum of five hundred dollars. The return of the deposit will be conditioned upon the permittee completely cleaning up the temporary activity area, including any off-street parking area, of all rubbish, waste matter, debris or temporary improvements made in connection with the temporary activity. Any cleanup expense incurred by the city will be deducted from the deposit. (Ord. 590 § 1(part), 1996).