(A) No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes if it appears likely in the judgment of the Village Engineer that the wastes can harm or interfere with either the sanitary sewers, sewage treatment process or equipment; pass through the treatment process and have an adverse effect on the receiving stream; or can otherwise endanger life, limb, public property or constitute a nuisance. In forming his or her opinion as to the acceptability of these wastes, the Village Engineer will give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sanitary sewers, material of construction of the sanitary sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant, and maximum limits established by regulatory agencies.
(B) The substances 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; 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 and 150°F (0 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 or greater shall be subject to the review and approval of the Village Engineer;
(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 the degree that any material received in the composite sewage at the sewage treatment works exceeds the limits established by the Village Engineer for those materials;
(6) Any waters or wastes containing phenols or other taste or odor-producing substances, in concentrations exceeding limits which may be established by the Village Engineer 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;
(7) Any radioactive wastes or isotopes of a half-life or concentration that may exceed limits established by the Village Engineer in compliance with applicable state or federal regulations;
(8) 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 Engineer in compliance with applicable state and federal regulations;
(9) Any cyanide in excess of 0.025 mg/l at any time except as permitted by the Village Engineer in compliance with applicable state and federal regulations;
(10) 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) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
(c) Unusual BOD, chemical oxygen demand, total solids, suspended solids or chlorine requirements in such character or quantities as to constitute a significant load on the sewage treatment works; or
(d) Unusual volume of flow or concentrations of wastes constituting “slugs” as defined herein.
(11) 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;
(12) Any substance which will cause the wastewater treatment plant to violate its NPDES permit or the receiving water quality standards; and
(13) In no case shall a substance discharged to the wastewater treatment plant cause it to be in noncompliance with sludge use or disposal criteria, guidelines or regulations developed under the Federal Act; or any criteria, guidelines or regulations affecting sludge use or disposal developed pursuant to the Resource Conservation and Recovery Act, Solid Waste Disposal Act, Clean Water Act, Toxic Substances Control Act or state criteria applicable to the sludge management method being used.
(Ord. 18-04-01, passed 4-24-2018)