(A) 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 Town Council, that such 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 or public property or constitute a nuisance. In forming its opinion as to the acceptability of these wastes, the Town Council shall give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant and other pertinent factors.
(B) The substances prohibited are:
(1) Any liquid or vapor having a temperature higher than 150°F or 65°C;
(2) 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°F and 150°F or 0°C and 65°C;
(3) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the Town Council;
(4) Any waters or wastes containing strong acid, iron pickling wastes or concentrated plating solutions, whether neutralized or not;
(5) Any waters or wastes containing iron, chromium, copper, zinc and similar objectionable or toxic substances or wastes exerting excessive chlorine requirements, to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Town Council for such materials;
(6) Any waters or wastes containing phenols or other odor-producing substances in such concentrations as exceeds limits which may be established by the Town Council as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies having jurisdiction over such discharge into the receiving waters;
(7) Any radioactive wastes or isotopes of such shelf-life or concentrations as may exceed limits established by the Town Council in compliance with applicable state of federal regulations;
(8) Any waters or wastes having a pH in excess of 9.5;
(9) Materials which exert or cause:
(a) 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 limited to, sodium chloride and sodium sulfate);
(b) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
(c) Unusual BOD, chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works; and
(d) Unusual volume of flow or concentration of wastes which exceeds for more than 15 minutes more than five times the average 24-hour concentration or flow during normal operation.
(10) 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.
(Prior Code, § 18-20) (Ord. passed 12-3-1969) Penalty, see § 10.99