§ 8-2-3 PRETREATMENT OF WASTEWATER.
   (A)   Provision of necessary wastewater treatment. Industrial users shall provide necessary wastewater treatment as required to comply with this chapter and shall achieve compliance with all categorical pretreatment standards, local limits and the prohibitions set out in § 8-2-2 of this chapter within the time limitations specified by the EPA, the state or the Superintendent, whichever is more stringent. Any facilities required to pretreat wastewater to a level acceptable to the city shall be provided, continuously operated and maintained at the industrial user’s expense. Detailed plans showing the pretreatment facilities and operating procedures shall be submitted to the city for review and shall be approved, in writing, by the city before construction of the facility. The review and approval of such plans and operating procedures will in no way relieve the industrial user from the responsibility of modifying the facility as necessary to produce an acceptable discharge to the city under the provisions of this chapter.
   (B)   Restriction of discharge. Whenever deemed necessary, the Superintendent may require industrial users to restrict their discharge during peak flow periods, to install and maintain a suitable storage and flow control facility to ensure equalization of flow, designate that certain wastewater 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 and determine the industrial user’s compliance with the requirements of this chapter.
   (C)   Interceptors and bar screens. Grease, oil and sand interceptors and bar screens shall be provided when, in the opinion of the Superintendent, they are necessary for the proper handling of wastewater containing excessive amount of grease and oil, sand or screenings; except that, such interceptors shall not be required for residential users. All interception units shall be of type and capacity approved by the Superintendent and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned and repaired regularly as needed, by the owner at his or her expense.
   (D)   Combustible gas detection meter. Industrial users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
   (E)   Slug control plan. The Superintendent may require any industrial user to develop a slug control plan which outlines discharge practices, describes stored chemicals and contains procedures both to notify the treatment plant immediately and to prevent adverse impacts from any accidental or slug discharges.
   (F)   Hauled wastewater.
      (1)   Septic tank waste may be accepted into the POTW at a designated receiving structure within the treatment plant area, and at such times as are established by the Superintendent; provided, such wastes do not violate this chapter or any other requirements established or adopted by the city. The Superintendent may issue discharge permits for individual vehicles to use such facilities and may require the completion of records to establish the origin of and the constituents in the hauled waste.
      (2)   The discharge of hauled industrial wastes as “industrial septage” requires prior approval from the city. The Superintendent shall have authority to prohibit the disposal of such wastes or any other hauled wastes if such disposal would interfere with the treatment plant operation. Waste haulers are subject to all other sections of this chapter.
      (3)   Fees for dumping septage or other hauled wastes and fees for analyzing such wastes may be established by the Superintendent in conjunction with the sewer rate system provisions in § 8-7-2 of this code of ordinances.
   (G)   Tenant responsibility. Where an owner of property leases premises to any other person as a tenant under any rental or lease agreement, if either the owner or the tenant is an industrial user, either or both may be held responsible for compliance with the provisions of this chapter.
   (H)   Vandalism. No person shall maliciously, wilfully or negligently break, damage, destroy, uncover, deface, tamper with or prevent access to any structure, appurtenance or equipment or other part of the POTW. Any person found in violation of this requirement shall be subject to the sanctions set out in this chapter.
   (I)   Pollution control equipment. An industrial user defined as a “new source” shall install and have in operating condition and shall “start up” all pollution control equipment required to meet applicable pretreatment standards before beginning to discharge. Within 90 days, new sources must meet all applicable pretreatment standards.
(Ord. C-172, passed 9-7-1993)