8409-93 Amending Articles 1 & 2 of Chapter 17 Pretreatment Requirements the Public Sewers

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r (d) (e) Interceptors shall be provided by the discharger as necessary for the removal of grease, flammable wastes, sand, or other harmful substances . All interceptors shall be of a type and capacity approved by the Board or its designee, and shall be readily accessible for cleaning and inspection. The owner and/or operator of interceptor equipment shall be required to maintain certified records as to time and date of cleaning and inspection. (e) (f) When a discharger is required to provide preliminary treatment, including interceptors or flow equalization facilities, such equipment shall be maintained by the discharger in satisfactory operating condition as determined by the Board of Public Works or its designee. (f) (g) When required by the Director, the owner or 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 accessibly and safely located, and shall be constructed in accordance with plans approved by the Director. The manhole shall be installed by the owner at his expense, and shall be maintained by him so as to be safe and accessible at all times . Agents of the City, the State Water Pollution Control Agencies and the USEPA shall be permitted to enter all properties for the purpose of inspection, observation, measurement, sampling and testing. (g) (h) All measurements, tests and analyses of the characteristics of water and wastes to which reference is made in this ordinance shall be determined in accordance with the latest edition of "Standard Mcthods for the- Examination of Water and Wastewater", published by the American Public Health 8sociation, conducted using the methods and procedures in 40 CFR Part 136, and shall be determined at the control manhole provided, or upon suitable samples taken at said control manhole, except for application for NPDES permits and report thereof such shall be conducted in accordance with rules and regulations adopted by the USEPA, 40 CFR Part 136 and any subsequent revisions subject to approval by the City. In the event that no special manhole has been required, the control manhole 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 upon 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 S .S . analyses are obtained from twenty-four (24) hour composites of all outfalls whereas pHs are determined from periodic grab samples . ) (h) (i) No statement contained in this article shall be construed as preventing any special agreement or arrangement between the City and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the City for treatment, subject to payment therefore, by the industrial concern, at such rates as are compatible with the rate ordinance-; provided, however, that no special agreement or arrangement may be made with the City which results in the violation of National pretreatment standards or local limits . Sec . 17-9 . Discharges Into Sanitary Sewer Prohibited.