No person, firm, partnership, association or corporation shall discharge or cause to be discharged into a storm, flood control or sanitary drainage system any sewage, waters, vapors or industrial wastes that have any one of the following characteristics or components:
(A) Gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
(B) Acid, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure or any other solid or viscous substance capable of causing obstruction to the flow or interfering with the proper operation of a storm, flood control and sanitary drainage system;
(C) Industrial wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process or to constitute a hazard to humans or animals or to create any hazard in the receiving waters of a sewage treatment plant;
(D) Noxious or malodorous gas or substances capable of creating a public nuisance;
(E) Liquid or vapor having a temperature higher than 85°F, unless properly treated for scale inhibition;
(F) Industrial wastes which may contain more than 200 parts per million, by weight, of fat, oil or grease.
(`78 Code, § 14.24.120.)