(a) Users shall provide necessary pretreatment of wastewater to comply with applicable discharge limitations contained in Sections 926.03 to 926.06. Any facilities to pretreat wastewater shall be provided, operated and maintained at the user's expense. Detailed plans showing the existing pretreatment facilities and operating procedures shall be submitted to the City for review and shall be acceptable to the City. The review of such plans and operating procedures shall not relieve the user from the responsibility of modifying the facility as necessary to produce an effluent acceptable to City under the provision of this chapter. Any subsequent changes in the method of operation or upgrading of pretreatment facilities which were in use at the effective date of this section shall be reported to and be acceptable to the City prior to the user's initiation of the changes.
(b) Where necessary in the opinion of the Director, the industrial user shall provide, at his expense, such pretreatment as may be necessary to reduce objectionable characteristics or constituents to within the maximum limits provided for in Section 926.03 or to control the quantities and rates of discharge of such waters or wastes.
(c) Whenever deemed necessary, the Superintendent may require users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage wastestreams from industrial wastestreams, and such other conditions as may be necessary to protect the POTW and determine the user's compliance with the requirements of this chapter.
(d) The Superintendent may require any person discharging into the POTW to install and maintain, on their property and at their expense, a suitable storage and flow-control facility to ensure equalization of flow. A wastewater discharge permit may be issued solely for flow equalization.
(e) Grease, oil and sand interceptors shall be provided when, in the opinion of the Director, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts or any flammable wastes, sand and other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the Director and shall be located so as to be readily and easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned, and repaired regularly, as needed, by the user at their expense and remain in continuous efficient operation at all times.
(f) Grease and oil interceptors shall be constructed of impervious material capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight and equipped with easily removable covers which, when bolted in place, shall be gastight and watertight.
(g) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.