The requirements for a permit listed in this chapter are applicable to all users. Existing users that are discharging to the sewer system without an industrial waste discharge permit may be required to apply for such permit. The determination for requirement shall be made by the WRD Manager in accordance with the requirements established in this chapter. The user shall be notified in writing of the requirement for a permit and shall be allowed to continue discharging into the sewer system until a permit is issued or denied; provided, that the characteristics and concentrations of wastes discharged are not in excess of the amounts established in this chapter. Discharges allowed under these conditions shall meet all other applicable requirements of this chapter.

A completed application for an industrial waste discharge permit shall be submitted to the WRD Manager within 90 days after permit requirement notification was received.