Permit users that have been subjected to enforcement proceedings may be required to deposit with the city an amount determined by the director of public works and not to exceed twenty-five thousand dollars prior to permission being granted for further discharges to city facilities. The deposit will be provided as a security to ensure that the requirements of this chapter are complied with and that any and all fees and charges associated with the user's permit are paid. The security may be returned after one year, provided that the user has not been subject to any enforcement actions or enforcement fees within that one-year period. The deposit shall be cash or other security acceptable to the city. (Ord. 01-102 § 2(part), 2001).