§ 57.44 DISCHARGE OF OBJECTIONABLE MATERIALS—REGULATIONS.
   Except as otherwise provided in this chapter, it is unlawful to place, deposit or discharge, either directly or indirectly, into any public sewer or into any sewer connection or on or upon any street, alley or public place or upon any private property or any other place in such a manner that the same will be permitted to run into any such public sewer, any of the following substances:
   (A)   Any oil, petroleum, gasoline, naphtha, liquid asphaltum or petroleum product, or any fatty matter, benzene, fuel, or other flammable or explosive liquid, solid or gas;
   (B)   Dead animals, fish, fruit or vegetable matter in any form;
   (C)   Any commercial 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 with or tend to interfere with the efficient and successful operation of the system or the plant, or cause a potential hazard or objectionable odor;
   (D)   Any chemicals or wastes destructive to masonry or portland cement concrete;
   (E)   Grease, except in quantities commonly contained in domestic sewage, or commercial waste which may contain more than 200 parts per million, by weight, of fat, oil or grease;
   (F)   Any effluent of a temperature exceeding 140ºF, or that would cause the temperature of wastewater entering the headworks of any wastewater treatment plant to exceed 104ºF;
   (G)   Any radioactive waste, which exceeds the limits specified in Title 17, Chapter 5, Subchapter 4, Group 3, Article 5, § 30287 of the California Code of Regulations;
   (H)   Any commercial 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 and filters;
   (I)   Any solids or viscous substances of such size or in such quantity that may cause obstruction to the flow in the sewer or to be detrimental to proper wastewater treatment plant operation;
   (J)   Any wastes with odors of such strength that the discharge of the wastes to any wastewater treatment plant results in, as determined by the city, an odor violation of the treatment plant's waste discharge requirements, where without the discharge no odor violation would have been anticipated;
   (K)   Any waste containing substances that may precipitate, solidify or become viscous at temperatures between 50ºF and 100ºF;
   (L)   Any waste capable of passing through the waste water treatment works and producing discoloration of treatment plant effluent;
   (M)   Any water added for purposes of diluting wastes which would otherwise exceed applicable maximum concentration limitations;
   (N)   Any waste which may create a fire or explosion hazard in the wastewater collection or treatment system;
   (O)   Any waste prohibited by federal standards from being discharged to the sewer system;
   (P)   Any ashes, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastic, wood, paunch manure, rags, earth or stone dust or any other solid or viscous substance capable of causing obstruction of the flow in sewers or other interference with the proper operation of the sewage works;
   (Q)   Any commercial waste containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the sewage treatment plant;
   (R)   Any noxious or malodorous gas or substance capable of creating a public nuisance;
   (S)   Any liquid or vapor having a temperature higher than 85ºF unless properly treated for scale inhibition.
(Ord. 1525, passed 2-6-08) Penalty, see § 10.99