(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 from any source of nondomestic wastewaters that could pass through or cause interference with the operation or performance of the POTW.
(2) Any petroleum, oil, non-biodegradable cutting oil, or products of mineral oil in origin, or other flammable or explosive liquid, solid or gas.
(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, cause acute worker health and safety problems, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant.
(4) Any waters or wastes having a pH lower than (5.5), or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the sewage works.
(5) Solid or viscous substances in quantities or of such 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, etc., either whole or ground by garbage grinders.
(6) A trucked or hauled pollutant, except:
(a) With permission of the POTW; and
(b) When introduced to the POTW at a discharge point designated by the POTW.
(7) A pollutant that could create a fire or explosion hazard in the POTW, including waste streams with a closed cup flashpoint of less than 140°F (60°C) using the test methods in 40 CFR 261.21.
(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 Superintendent 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, public property, or constitute a nuisance. In forming his opinion as to the acceptability of these wastes, the Superintendent 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 are:
(1) Any liquid or vapor having a temperature higher than 104°F, 40°C.
(2) Any liquid or vapor having a temperature that could inhibit biological activity in the POTW and result in interference or damage to the POTW.
(3) 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° and 150°F (65°C).
(4) 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 Superintendent.
(5) Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not.
(6) Any waters or wastes containing iron, chromium, copper, zinc, and 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 superintendent for such materials.
(7) Any waters or wastes containing phenols or other taste or odor producing substances, in such 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 such discharge to the receiving waters.
(8) 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.
(9) Any waters or wastes having a pH in excess of 9.5.
(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, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
(d) Unusual volume of flow or concentration 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 other agencies having jurisdiction over discharge to the receiving waters.
(C) If any waters or wastes are discharged, or are proposed to be discharged, to the public sewers, which waters contained the substances or possess the characteristics enumerated in this section of this subchapter, and which in the judgment of the Superintendent may have a deleterious effect upon the sewage works, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Superintendent may:
(1) Require new industries or industries with significant increase in discharges to submit information on wastewater characteristics and obtain prior approval for discharges.
(2) Reject the wastes in whole or in part for any reason deemed appropriate by the town.
(3) Require pretreatment of such wastes to within the limits of normal sewage as defined.
(4) Require control or flow equalization of such wastes so as to avoid any "slug" loads or excessive loads that may be harmful to the treatment works; or
(5) Require payment of a surcharge on any excessive flows or loadings discharged to the treatment works to cover the additional costs of having capacity for and treating such wastes.
(D) If the Superintendent permits the pretreatment or equalization of waste flows, the design and installation of the plant and equipment shall be subject to the review and approval of the Superintendent and subject to the requirements of all applicable codes, ordinances, and laws.
(E) Where preliminary treatment or flow-equalizing facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense. In addition the town shall have the authority to impose fees, if necessary, to offset the cost incurred for administering pretreatment requirements.
(F) When required by the Superintendent, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable control manhole together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling, and measurement of the wastes. Such manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by the Superintendent. The manhole shall be installed by the owner at his expense, and shall be maintained by him so as to be safe and accessible at all times.
(G) All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this ordinance shall be determined in accordance with 40 CFR 136, and shall be determined at the control manhole provided, or upon suitable samples taken at said control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb, and property. (The particular analyses involved will determine whether a 24 hour composite of all outfalls of a premise is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD suspended solids analyses are obtained from 24-hour composites of all outfalls where pH's are determined from period grab samples).
(H) No statement contained in this section shall be construed as preventing any special agreement or arrangement between the town and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the town for treatment, subject to payment therefore, by the industrial concern, at such rates as are compatible with the rate ordinance.
(I) The following pollutant limits are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following:
Pollutant | Maximum Daily Average (mg/L) |
Pollutant | Maximum Daily Average (mg/L) |
Ammonia (NH3) | 18 |
Cadmium | 0.6 |
Chromium | 6 |
Copper | 6 |
Cyanide | 1.9 |
Lead | 6 |
Nickel | 6 |
Total Oil or Grease | 100 |
Silver | 2.5 |
Zinc | 12 |
Total suspended solids | 250 |
BOD | 200 |
(Ord. 708, passed 5-20-2013; Am. Ord. 761, passed 11-20-2017) Penalty, see § 51.99