(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 village and MWRD that such wastes can harm any sewer or 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 village and MWRD will give consideration to such factors 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 maximum limits established by regulatory agencies.
(B) The substance prohibited are:
(1) Any liquid or vapor having a temperature higher than 150°F (65°C);
(2) Any waters or wastes containing toxic or poisonous materials 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 (0°C and 64°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 village and MWRD;
(4) Any waters or wastes containing strong acid, iron pickling wastes or concentrated plating solution, whether neutralized or not;
(5) Any waters or wastes containing iron, chromium, copper, zinc or similar objectionable or toxic substances, or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the village and MWRD for such materials;
(6) Any waters or wastes containing phenols or other taste- or odor-producing substances in concentrations exceeding limits which may been established by the village and MWRD, as necessary after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies or jurisdiction for such discharge to the receiving waters;
(7) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the village and MWRD, in compliance with applicable state or federal regulations;
(8) Any wastes or waters having a pH in excess of 9.5;
(9) Any mercury or any of its compounds in excess of 0.0005 mg/l as Hg at any time except as permitted by the village or MWRD in compliance with applicable state and federal regulations;
(10) Any cyanide at any time except as permitted by the village and MWRD in compliance with applicable state and federal regulations;
(11) 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 not limited to sodium chloride and sodium sulfate);
(b) Excess 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 concentrations of wastes constituting “slugs” as defined herein.
(12) 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 agencies having jurisdiction over discharge to the receiving waters.
(Ord. 4107, passed 6-20-2011) Penalty, see § 10.99