(A) It shall be unlawful for any person to discharge or cause to be discharged any storm water, surface water, ground water, roof runoff, surface drainage, or unpolluted industrial process waters into the sanitary sewer.
(B) Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described waters or wastes into the municipal sewer system:
(1) Liquids or vapors having a temperature higher than 150°F;
(2) Water or waste which may contain more than 100 parts per million by weight of fat, oil or grease;
(3) Gasoline, benzene, naphtha, fuel oil, other flammable, or explosive liquid, solid or gas;
(4) Garbage that has not been properly shredded;
(5) Sand, mud, metal, rags, paper, or other solid or viscous substance capable of causing obstruction to the flow in the sewer system;
(6) Toxic of poisonous substances in sufficient quantity, either singly or by interaction with other wastes, to interfere with or injure the sewage treatment process, constitute a hazard to humans, animals, or fish, or create any hazard in the receiving area of the sewage treatment plant;
(7) Suspended solids of such character and quantity that unusual attention or expense is required to handle such materials;
(8) Waters or wastes having a pH lower than 5.5 or higher than 9.0 or having other corrosive properties capable of causing damage to the structures, equipment, and personnel of the Municipal Sewer Department;
(9) Any noxious or malodorous gas or substance capable of creating a public nuisance;
(10) Any waters or wastes containing iron. chromium, copper, zinc, and similar objectionable or toxic substances;
(11) Materials which exert or cause:
(a) Unusual concentrations of inert suspended solids (such as, but not limited to Fuller's earth, lime slurries, and lime residues) or of dissolved solids, (such as but not limited to sodium chloride or sodium sulfate);
(b) Excessive discoloration (such as, but not limited to dye wastes and vegetable tanning solutions); and
(c) Unusual BOD, chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
(12) Any waters or wastes containing phenols or other taste- or odor-producing substances, in such concentrations exceeding limits which may be established by the City Council or to meet the requirements of the state, federal, or other public agencies having jurisdiction for such discharge to the receiving waters;
(13) Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters; and
(14) Any waters or wastes having a five-day BOD greater than 300 parts per million by weight, containing more than 350 parts per million by weight of suspended solids, or having an average sewage flow greater than 2% of the average sewage flow of the city, shall be subject to the review of the Mayor. Where necessary, in the opinion of the Mayor, the owner shall provide, at his or her expense, such preliminary treatment as may be necessary to reduce the biochemical oxygen demand to 300 parts per million by weight, reduce the suspended solids to 350 parts per million by weight, or control the quantities and rates of discharge of such waters or wastes. Plans, specifications, and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the City Council and no construction of such facilities shall be commenced until such approvals are obtained in writing.
(`77 Code, § 3-212) (Am. Ord. 441, passed 8-3-87) Penalty, see § 10.99