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A. General Requirements: Users shall provide necessary wastewater pretreatment as required to comply with this chapter and shall achieve compliance with all applicable pretreatment standards within the time limitations as specified by appropriate statutes, regulations and ordinances. Any facilities required to pretreat wastewater to a level acceptable to the city shall be provided, properly operated and maintained at the user's expense. Detailed plans showing the pretreatment facilities shall be submitted to the city for review and must be acceptable to the city before construction of the facility. The review of such plans shall in no way relieve the discharger from the responsibility of modifying its facility or operations as necessary to produce an effluent acceptable to the city both under the provisions of this chapter. Within a reasonable time after the completion of the wastewater pretreatment facility, the user shall furnish its operations and maintenance procedures for the city to review. Any subsequent significant changes in the pretreatment facilities or method of operation shall be reported to and be accepted by the city prior to the user's initiation of the changes.
B. Additional Pretreatment Measures: Whenever deemed necessary, the pretreatment coordinator may require users to restrict their discharge during peak flow periods, designate that certain wastewaters be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage waste streams from industrial waste streams, and such other conditions as may be necessary to protect the POTW, personnel operating the POTW, the public health or to determine the user's compliance with the requirements of this chapter.
C. Interceptors: Suitable and adequate grease and oil, or sand interceptors shall be provided for the proper handling of wastewater containing grease, oil, sand or other substances prohibited by this chapter; except that such interceptors shall not be required for residential users. All interception units shall be of a type and capacity approved by the city and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be provided, inspected, cleaned regularly in accordance with established BMPs, and maintained in proper operating condition by the user and at the user's expense. The introduction of chemical, bacterial, enzyme, or any other additive into an interceptor, directly or indirectly, that causes interference with the normal operation of the unit or causes pass-through of prohibited substances is prohibited. Interceptor maintenance and cleaning records shall be maintained by the user and made available to pretreatment inspectors for review upon request. (Ord. 228, 6-10-2009)