(A) Users shall provide wastewater treatment as necessary to comply with this chapter, and shall achieve compliance with all categorical pretreatment standards, local limits, and the prohibitions set out in this chapter within the time limitations specified by the EPA, the state or the town, whichever is more stringent.
(B) (1) Whenever the waste from any user is found to interfere with the successful operation of the sewage works, written notice may be given ordering the offender to construct a treatment system to give the waste pretreatment before it is discharged into the sewerage system.
(2) The pretreatment shall be sufficient to reduce the strength of characteristics of the wastes to a degree that it will not interfere with the successful operation of the sewerage system or the POTW.
(3) The notice shall be served upon the owner or lessee of the factory, mercantile, manufacturing or industrial enterprise by the Public Works Department.
(4) The notice shall set a date or time limit for compliance with the order.
(C) Where determined by the town, before the user discharges wastes into the sewerage system, the user must modify or eliminate those constituents that would be harmful to the structures, processes or
operations of the sewage works, or injurious to health. The user shall either modify the wastes at the point of origin, or shall provide and operate at the user’s expense a preliminary treatment or processing facility that renders the wastes acceptable for admission to the sewerage system. Appropriate pretreatment technology includes control equipment, such as equalization tanks or facilities, for protection against slugs that might interfere with or otherwise be incompatible with sewage works. Where there is reason to believe that the use of equalization tanks or other facilities that have potential for dilution is resulting in dilution, the town may impose mass limitations on the user employing such tanks and other facilities.
(D) Any equipment 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 Public Works Department for review, and shall be acceptable to the Public Works Department before they are constructed. The review of such plans and operating procedures shall in no way relieve the user from the responsibility for modifying such facilities as necessary to produce a discharge acceptable to the Public Works Department under the provisions of this chapter.
(E) Whenever deemed necessary, the Public Works Department 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 sewage works and determine the user’s compliance with the requirements of this chapter.
(F) When requested by the Public Works Department, a user must submit information on the nature and characteristics of its wastewater within 30 days of the request. The Public Works Department is authorized to prepare a form for this purpose, and may periodically require users to update this information.
(G) The Public Works Department may require any person discharging into the sewage works 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 approval may be issued solely for flow equalization.
(H) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
(I) If the Public Works Department allows the pretreatment or equalization of waste flows, the design and installation of the plant and equipment shall be subject to the review and approval of the Public Works Department, and shall be subject to the requirements of all applicable codes, ordinances and laws. Plans, specifications and any other pertinent information relating to pretreatment or control facilities shall be submitted for approval of the Public Works Department, and no construction of those facilities shall be commenced until approval is granted in writing.
(Ord. 2019-10, passed 12-2-2019)