(A) Pretreatment facilities. Users shall provide wastewater treatment as necessary to comply with this chapter and wastewater permits issued under § 52.046 and shall achieve compliance with all National Categorical Pretreatment Standards, local limits, and the prohibitions set out in § 52.020 within the time limitations as specified by EPA, the state, or the town, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the user's expense. Detailed plans which shall include a process flow diagram and design calculations showing the pretreatment facilities and operating procedures shall be submitted to the town for review, and shall be approved by the town as recommended by the town's Engineer before construction of the facility. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying the facility as necessary to produce an effluent acceptable to the town under the provisions of this chapter. Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be approved by the town prior to the user's initiation of the changes.
(B) Additional pretreatment measures.
(1) Whenever deemed necessary, the town 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 waste streams from industrial waste streams and such other conditions as may be necessary to protect the POTW and determine the user’s compliance with the requirements of this chapter.
(2) The town may require any person discharging into the POTW to install and maintain, on his or her property and at his or her expense, a suitable storage and flow control facility to ensure equalization of flow. A 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 town, 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 the type and capacity approved by the town 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 user at his or her expense.
(4) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
(Ord. passed 6-13-2005; Am. Ord. 11-7, passed 6-13-2011)