At the time the application for the license required in Section 816.01 is made, where use of City grounds is contemplated, the applicant shall deposit with the Treasurer a cash bond of not less than one hundred dollars ($100. 00), nor more than two hundred fifty dollars ($250. 00), conditioned upon the restoration and cleaning up of the grounds in a manner satisfactory to the Treasurer. In the event such grounds are restored and cleaned up properly following the exhibition, the deposit shall be returned, otherwise the same shall be forfeited to the City.