(A) All significant industrial users shall provide necessary wastewater treatment as required to comply with this chapter and achieve compliance with any applicable federal pretreatment standards and any other applicable requirements promulgated by the EPA or with any more stringent pretreatment standards necessitated by local conditions within the time limitations as specified by the federal pretreatment regulations.
(B) Murray Sewer System may require the development of a compliance schedule for installation of pretreatment technology and/or equipment by any industrial user that cannot meet discharge limits required by this chapter. Any facilities required to pretreat wastewater to a level required by this chapter shall be provided, operated, and maintained at the user's expense. Detailed plans showing the pretreatment facilities and operating procedures shall be submitted to the city for review, and shall be acceptable to the city prior to construction of the facility. The review of the plans will in no way relieve the user from the responsibility of modifying the facility as necessary to produce an effluent that complies with the provisions of this chapter. Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be acceptable to the Murray Sewer System prior to the user's initiation of the changes.
(C) Pursuant to the requirements imposed on publicly owned wastewater treatment works by the Federal Water Pollution Control Act Amendments of 1972 and later amendments, all pretreatment standards promulgated by the U.S. EPA for new and existing industrial discharges to public sewer systems are hereby made a part of this chapter. Any industrial waste discharge which violates these EPA pretreatment standards shall be in violation of this chapter. Industrial users are required to notify the POTW and other waste management authorities of hazardous waste discharges into the POTW. 40 CFR 403.12(p).
(D) New sources. Pretreatment standards are based on existing source industries and new source industries. The term "new source" shall mean any building, structure, facility or installation from which there is or may be a discharge of pollutants, the construction of which commences after the publication of proposed pretreatment standards provided that:
(1) The building, structure, facility, or installation is constructed on a site at which no other source is located;
(2) The new source industry totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or
(3) The production or wastewater generating processes are substantially independent of an existing source at the same site.
(E) New source industries 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 the shortest feasible time (not to exceed ninety (90) days), new sources must meet all applicable pretreatment standards.
(1) Subject to production-based standards, all industrial users must comply with all discharge limits calculated under 40 CFR 403.6(c), (304).
(2) Each industrial user shall report production rates to the pretreatment coordinator annually, at a minimum.
(F) Conversion of mass limits to concentration limits. When the limits in a pretreatment standard are expressed only in terms of mass of pollutant per unit of production, the city may convert the limits to equivalent limits expressed as effluent concentration limits.
(G) Control manhole. When required by state, local or federal rules and regulations, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable control manhole together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling, and measurement of the wastes. Such manhole, when required, shall be constructed in accordance with plans approved by the city. The manhole shall be installed by the owner at owner expense, and shall be maintained by owner so as to be safe and accessible at all times.
(H) Measurements, tests, and analyses. All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with 40 CFR 261 EPA Pretreatment Standards, and the current edition of "Standard Methods for the Examination of Water and Wastewater," published by the American Public Health Association, the American Water Works Association and the Water Environment Association, and shall be determined at the control manhole provided, or upon suitable samples taken at the control manhole which shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents on the sewage works and to determine the existence of hazards to life, limb, and property. The particular analysis involved will determine whether a twenty-four (24) hour composite of all outfalls of a premises is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from twenty-four (24) hour composites of all outfalls whereas pH is determined from periodic grab samples.
(I) Violation notification. If sampling performed by an industrial user indicates a violation, the user shall notify the Pretreatment Coordinator within twenty-four (24) hours. The user shall repeat the sampling and analysis and submit the results to the Pretreatment Coordinator within thirty (30) days after becoming aware of the violation. Exception to this regulation is only if the Pretreatment Coordinator performs sampling within the same time period for the same pollutant in question.
(Ord. 2024-1867, passed 7-11-24)