(a) Pretreatment Facilities. Users shall provide wastewater treatment as necessary to comply with this article and shall achieve compliance with all categorical Pretreatment Standards, Local Limits, and the prohibitions set out in Section 925.02(a) within the time limitations specified by EPA, the State, or the PUB, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the User’s expense. Detailed plans describing such facilities and operating procedures shall be submitted to the PUB for review, and shall be acceptable to the PUB before such facilities are constructed. The review of such plans and operating procedures shall in no way relieve the User from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the PUB under the provisions of this article.
(b) Additional Pretreatment Measures.
(1) Whenever deemed necessary, the PUB 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 article.
(2) The PUB 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. An individual wastewater discharge permit may be issued solely for flow equalization.
(3) Grease, oil, and sand interceptors shall be provided when in the opinion of the PUB they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interceptors shall not be required for residential users. All interception units shall be of a type and capacity approved by the PUB and shall comply with the City’s Fats, Oils and Grease (FOG) ordinance , and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned, and repaired in accordance with the City’s FOG Management ordinance by the User at their expense.
(4) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
(c) Accidental Discharge/Slug Discharge Control Plans. The Parkersburg Utility Board shall evaluate whether each SIU needs an accidental discharge/slug discharge control plan or other action to control Slug Discharges. The PUB may require any User to develop, submit for approval, and implement such a plan or take such other action that may be necessary to control Slug Discharges. Alternatively, the PUB may develop such a plan for any User. An accidental discharge/slug discharge control plan shall address, at a minimum, the following:
(1) Description of discharge practices, including nonroutine batch discharges;
(2) Description of stored chemicals;
(3) Procedures for immediately notifying the PUB of any accidental or Slug Discharge, as required by Section 925.06(f); and
(4) Procedures to prevent adverse impact from any accidental or Slug Discharge. Such procedures include, but are not limited to, inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site runoff, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants, including solvents, and/or measures and equipment for emergency response.
(d) Hauled Wastewater.
(1) Septic tank waste may be introduced into the POTW only at locations designated by the PUB, and at such times as are established by the PUB. Such waste shall not violate Section 925.02 or any other requirements established by the Utility Board.
(2) The Parkersburg Utility Board may accept FOG material from a FOG interceptor or grease trap into the POTW only at locations designated by the PUB. Such waste shall bein compliance with the City of Parkersburg’s Fats, Oils and Grease (FOG) Pretreatment Ordinance (Article 922) and any other requirement established by the Utility Board.
(3) The Parkersburg Utility Board does not accept industrial wastes from haulers, but reserves the right to amend its policy, at such time as deemed applicable by the General Manager.
(Ord. 1396. Passed 6-14-11.)