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No user shall increase the use of process water or, in any manner, attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in §§ 51.81 and 51.82, or contained in the National Categorical Pretreatment Standards or any State requirements.
Grease, oil, and sand interceptors shall be provided when, in the opinion of the Utilities Superintendent, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts, as specified in § 51.82(B)(2), any flammable wastes as specified in § 51.81(A), sand or other harmful ingredients; except that interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of the type to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner shall be responsible for the proper removal and disposal of the captured materials by appropriate means and shall maintain a record of dates and means of disposal which are subject to review by the Utilities Superintendent. Any removal and hauling of the collecting materials not performed by the owner's personnel must be performed by a currently licensed waste disposal firm.
Where required by the City, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable structure, or control manhole, with necessary meters and other appurtenances in the building sewer to facilitate observation, sampling, and measurement of wastes. The structure shall be accessible and safely located and shall be constructed in accordance with plans approved by the City. The structure shall be installed by the owner at his or her expense and shall be maintained by the owner to be safe and accessible at all times.
The owner of any property serviced by a building sewer carrying industrial wastes may, at the discretion of the City, be required to provide laboratory measurements, tests or analyses of waters or wastes to illustrate compliance with this chapter and any special condition for discharge established by the City or regulatory agencies having jurisdiction over the discharge. The number, type and frequency of sampling and laboratory analyses to be performed by the owner shall be as stipulated by the City. The industry must supply a complete analysis of the constituents of the wastewater discharge to assure that compliance with Federal, State and local standards are being met. The owner shall report the results of measurements and laboratory analyses to the City at times and in the manner as prescribed by the City. The owner shall bear the expense of all measurements, analyses and reporting required by the City. At those times as deemed necessary, the City reserves the right to take measurements and supplies for analysis by an independent laboratory.
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 the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association. Sampling methods, location, times, duration and frequencies are to be determined on an individual basis subject to approval by the Utilities Superintendent.
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