(A) No person may discharge into public sewers any substance capable of:
(1) Obstructing the flow in sewers;
(2) Preventing entry into the sewers for repair and maintenance;
(3) Interfering with the operation of treatment processes of facilities; or
(4) Overloading the treatment facilities.
(B) Discharges prohibited by division (A) above, but are not limited to, materials which exert or cause concentrations of:
(1) Inert suspended solids greater than 250 mg/l including, but not limited to, Fuller’s earth, lime slurries and lime residues;
(2) Dissolved solids greater than 600 mg/l including, but not limited to, sodium chloride and sodium sulfate;
(3) Excessive discoloration including but not limited to dye wastes and vegetable tanning solutions; or
(4) BOD, COD or chlorine demand in excess of normal plant capacity.
(C) No person may discharge into public sewers any substance that may:
(1) Deposit grease or oil in the sewer lines in a manner as to clog the sewers;
(2) Overload skimming and grease handling equipment;
(3) Pass to the receiving waters without being effectively treated by normal wastewater treatment processes due to the non-amenability of the substance to bacterial action; or
(4) Deleteriously affect the treatment process due to excessive quantities.
(D) No person may discharge any substance into public sewers which:
(1) Is not amenable to treatment or reduction by the processes and facilities employed; or
(2) Is amenable to treatment only to a degree that the treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
(E) The city may regulate the flow and concentrations of slugs when they may:
(1) Impair the treatment process;
(2) Cause damage to collection facilities;
(3) Incur treatment costs exceeding those for normal wastewater; or
(4) Render the effluent unfit for stream disposal or industrial use.
(F) No person may discharge into public sewers solid or viscous substances which may violate division (A) above if present in sufficient quantity or size including, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails, paper products (either whole or ground by garbage grinders), slops, chemical residues, paint residues, grease trap cleanings or bulk solids.
(Ord. passed 8-20-1985) Penalty, see § 54.99