(A) No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
(1) A pollutant that could create a fire or explosion hazard in the sewage works, including waste streams with a closed cup flashpoint of less than 140°F (60°C) using the test methods in 40 C.F.R. § 261.21;
(2) Petroleum, oil, nonbiodegradable cutting oil, or products of mineral oil origin in an amount that could cause interference or pass through;
(3) Any waters or wastes containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant;
(4) A pollutant that could cause corrosive structural damage to the sewage works, including a discharge with pH lower than five;
(5) Solid or viscous substances in quantities or of a size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the sewage works such as, 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 dishes, cups, milk containers, and the like, either whole or ground by garbage grinders; and/or
(6) A pollutant from any source of nondomestic wastewaters that could pass through or cause interference with the operation or performance of the sewer system.
(B) 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 Utilities Manager, 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 his or her opinion as to the acceptability of these wastes, the Utilities Manager 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, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors. The substances prohibited include, but are not limited to:
(1) Heat in an amount that could:
(a) Inhibit biological activity in the sewage treatment plant and result in interference or damage to the sewage works; or
(b) Exceed 40°C or 104°F at the sewage treatment plant unless the Indiana Department of Environmental Management (IDEM), upon request of the town, approves alternate temperature limits.
(2) Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of 100 milligrams per liter or containing substances which may solidify or become viscous at temperatures between 32°F and 150°F;
(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 horsepower metric) or greater shall be subject to the review and approval of the Utilities Manager;
(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 an excessive chlorine requirement, to a degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Utilities Manager for these 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 Utilities Manager as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal, or other public agencies of jurisdiction for discharge to the receiving waters;
(7) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Utilities Manager in compliance with applicable state or 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 not limited to, sodium chloride and sodium sulfate);
(b) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
(c) Any pollutant, including an oxygen demanding pollutant (such as biochemical oxygen demand) released in a discharge at a flow rate or pollutant concentration that could cause interference in any element of the sewage works; and/or
(d) Unusual volume of flow or concentration of wastes constituting slugs as defined in § 52.001.
(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;
(11) A pollutant that could result in the presence of toxic gases, vapors, or fumes within the sewage works in a quantity that may cause acute worker health and safety problems; and
(12) A trucked or hauled pollutant, except:
(a) With the permission of the town; and
(b) When introduced to the sewage works at a discharge point designated by the town.
(Prior Code, § 52.23) (Ord. 14-70, passed 1-18-1971; Ord. 03-08-2016-01, passed 3-22-2016) Penalty, see § 52.999