§ 52.06 NON-ACCEPTABLE WASTES.
   No person shall discharge or permit to be discharged into any sewer any of the following wastes:
   (A)   Any liquid or vapor having a temperature in excess of 180°F. Any water or waste having a five-day biological oxygen demand exceeding 1,000 parts per million by weight as averaged during any 12-month period;
   (B)   Any water or waste having a five-day biological oxygen demand exceeding 1,000 parts per million by weight as averaged during any 12-month period;
   (C)   Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
   (D)   Any garbage that has not been properly shredded;
   (E)   Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, manure, grit, brick, cement, onyx, carbide or other matter that may interfere with the proper operation of the sewers or sewage treatment plant;
   (F)   Any water or waste having a pH lower than five and one-half or higher than nine or having any other corrosive property capable of causing damage or hazard to structures, equipment or personnel of the sewage works;
   (G)   Any water or waste containing a toxic or poisonous substance, whether or not listed as a hazardous waste by Minn. Rules part 7045.0135 in sufficient quantities to constitute a hazard to humans or animals, injure or interfere with sewage treatment or create any hazard in the receiving waters of the sewage treatment plant;
   (H)   Any noxious or malodorous gas or substance capable of creating a public nuisance; and/or
   (I)   Any water or waste containing fats, gas, grease or oils, whether emulsified or not, in excess of 100 mg/l or containing substances which may solidify or become viscous at temperatures between 32°F and 150°F.
(2001 Code, § 3.30) Penalty, see § 10.99