(A) Prohibited illicit substances designated. Except as otherwise provided by this section, it shall be unlawful to place, deposit or discharge or to cause, suffer or permit to be placed, deposited or discharged either directly or indirectly into any public sewer of this city or into any house sewer connection therewith in the city, or on or upon any street, alley or public place, or on or upon any private property, or any other place in the city in such a manner that the same will be permitted to run into any such public sewer or house sewer, any of the following substances:
(1) Any oil, petroleum, naphtha, liquid asphaltum or petroleum product, or any fatty matter, rags, sand, earth or stone dust.
(2) Dead animals, fish, fruit or vegetable matter in any form, except garbage deposited into the sanitary sewer system by means of acceptable garbage grinders as provided for in this title.
(3) Any refuse or industrial liquid waste other than domestic sewage that will not readily disintegrate in the sewage treatment plant or that will cause or tend to cause obstructions in the sewer system or the sewage treatment plant or interfere, or tend to interfere with the efficient and successful operation of the system or the plant, or cause a potential hazard or objectionable odor.
(4) Any chemicals or waste destructive to masonry.
(5) Fats, oils, grease, and any other debris that may cause blockages, except in quantities commonly contained in domestic sewage.
(6) Any effluent of a temperature exceeding 140° F.
(7) Any radioactive waste, except where a special permit has been granted by the Director of Utilities and in type and amounts as specified from time to time by the Director of Utilities. Permission to discharge radioactive waste shall be terminated immediately at the discretion of the Director of Utilities if in his or her opinion the discharge constitutes or may constitute a public health hazard.
(8) Any industrial waste including but not limited to mineral salts, molds or wastes resulting from their manufacture and other products, which will tend to sterilize activated sludge, trickling filter slimes or slime growth on artificial or natural slow sand filters.
(B) Control of pH and biochemical oxygen demand. Before any person may discharge alkalis, acids or other corrosive or harmful wastes into the public sewer, he shall reduce the biochemical oxygen demand and the pH shall not be in excess of 11 and less than six. Control shall be to the extent which the Director of Utilities finds adequate taking all circumstances into consideration.
(C) Compliance with regulations. Except as provided in Title 17 of this code, it shall be unlawful for any person to make or maintain any connection with any part of the public sewer for the purpose of discharging sewage or waste which contains any of such objectional substances mentioned in this section.
('86 Code, § 16.24.010) (Ord. 2472, passed 9-18-51; Am. Ord. 3088, passed - - ; Am. Ord. 4541, passed 4-27-09; Am. Ord. 4542, passed 5-11-09) Penalty, see § 1.12.010