§ 15-425  PROHIBITED DISCHARGES.
   No person shall discharge any of the following waters or wastes to any public sewer:
   (a)   Liquid or vapor having a temperature higher than 150°F;
   (b)   Water or waste that may contain more than 100 parts per million, by weight, of fat, oil or grease;
   (c)   Gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
   (d)   Garbage that has not been properly shredded;
   (e)   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 in sewers or other interference with the proper operation of the sewage works;
   (f)   Waters or wastes having a ph lower than 5.5 or higher than 9.0 or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewage works;
   (g)   Waters or wastes containing a toxic poisonous substance in sufficient quantity to injury 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;
   (h)   Water or wastes containing suspended solids of such character and quantity that unusual attention or expense is required to handle such materials at the sewage treatment plant; and
   (i)   Noxious or malodorous gas or substance capable of creating a public nuisance.