No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes if it appears likely in the opinion of the Superintendent that the wastes can harm either the sewers, sewage treatment process or equipment, have an adverse effect on the receiving stream or can otherwise endanger life, limb, public property or constitute a nuisance. In forming an opinion as to the acceptability of these wastes, the Superintendent will give consideration to factors such as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, and other pertinent factors. The substances which may be prohibited or conditional in accordance with this section are:
(A) Any water or waste containing fats, wax, 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 degrees and 150 degrees Fahrenheit (zero and 65 degrees Celsius).
(B) Any garbage that has not been properly shredded.
(C) Any substance discharged in accordance with § 50.043 but which has been identified as the potential cause of interference or pass through of the publicly owned treatment works.
(D) Any waters or wastes containing strong acid, iron pickling wastes or concentrated plating solutions, whether neutralized or not.
(E) Any waters or wastes containing iron, chromium, copper, zinc and similar objectionable or toxic substances, or wastes exerting an excessive chlorine requirement, to the degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Superintendent for those materials.
(F) Any waters or wastes containing phenols or other taste- or odor-producing substances, in concentrations exceeding limits which may be established by the Superintendent as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies of jurisdiction for the discharge to the receiving waters.
(G) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Superintendent in compliance with applicable state or federal regulations.
(H) Any waters or wastes having a pH in excess of 9.5.
(I) Materials which exert or cause:
(1) Unusual concentrations of inert suspended solids such as but not limited to, fullers earth, lime slurries and lime residues; or of dissolved solids such as, but not limited to, sodium chloride or sodium sulfate. At no time shall any discharge to the publicly owned treatment works contain a total suspended solids concentration greater than 500 mg/l nor shall any 24-hour average total suspended solids concentration exceed 300 mg/l;
(2) Excessive discoloration, such as, but not limited to, dye wastes and vegetable tanning solutions;
(3) Unusual BOD, chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works. At no time shall any discharge to the publicly owned treatment works contain a biochemical oxygen demand concentration greater than 500 mg/l nor shall any 24-hour average biochemical oxygen demand concentration exceed 300 mg/l; or
(4) Unusual volume of flow or concentration of wastes constituting slugs, as defined herein.
(J) Waters or wastes containing substances which are not amenable to 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 overdischarge to the receivingwaters.
('85 Code, § 4-5-17) (Ord. 1983-8, passed 11-8-83; Am. Ord. 1985-C17, passed 9-16-85; Am. Ord. 2013-3-1, passed 3-28-13) Penalty, see § 50.999