(A) No person(s) shall discharge or cause to be discharged any unpolluted waters, such as stormwater, groundwater, roof runoff, subsurface drainage, sump pumps, basement or yard drain, or cooling water to any sewer, except stormwater runoff from limited areas, which stormwater may be polluted at times, may be discharged to the sanitary sewer by permission of the Superintendent.
(B) Stormwater other than that exempted under division (A) above, and all other unpolluted drainage, shall be discharged to such sewers as are specifically designated storm sewers to a natural outlet approved by the Superintendent and other regulatory agencies. Unpolluted industrial cooling water or process waters may be discharged, on approval of the Superintendent, to a storm sewer or natural outlet.
(C) No person(s) shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
(1) Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
(2) Any waters containing toxic substance or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes to injure or interfere with any waste treatment process including, but not limited to, causing the sewage works to violate its NPDES permit, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the wastewater treatment plant;
(3) Any waters or wastes having a pH lower than 5.0 or higher than 9.0, or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the wastewater works; or
(4) 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 wastewater facilities such as, but not limited to, ashes, bones, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers and the like, either whole or ground by garbage grinders.
(D) The following described substances, materials, waters or waste shall be limited in discharges to municipal systems to concentrations or quantities which will not harm either the sewers, wastewater treatment process or equipment, will not have an adverse effect on the receiving stream, or will not otherwise endanger lives, limb, public property or constitute a nuisance. The Superintendent may set limitations lower than the limitations established in the regulations below if in his or her opinion such more severe limitations are necessary to meet the above objectives. In forming his or her opinion as to the acceptability, the Superintendent will give consideration to such factors as the quantity of subject waste in relation to flows and velocities in the sewers, the wastewater treatment process employed, capacity of the wastewater treatment plant, degree of treatability of the waste in the wastewater treatment plant, and other pertinent factors. The limitations or restrictions on materials or characteristics of waste or wastewaters discharged to the sanitary sewer which shall not be violated without approval of the Superintendent are as follows:
(1) Pollutants that create a fire or explosive hazard in the POTW, including, but not limited to, waste streams with a closed-cup flashpoint of less than 140°F (60°C) using the test methods specified in 40 C.F.R. § 261.21;
(2) Wastewater having a pH less than 5.0 or more than 9.0 or otherwise causing corrosive structural damage to the POTW or equipment;
(3) 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, shaving, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, grease, whole blood, manure, hair and fleshings, entrails, paper, dishes, cups, milk containers and the like, with whole or ground by garbage grinders;
(4) Any waters or wastes containing suspended solids or dissolved solids of such character and quantity that unusual provision, attention and expense would be required to handle such materials at the wastewater treatment plant, its pumping stations or other facilities;
(5) Pollutants, including oxygen-demanding pollutants (BOD, ammonia nitrogen and the like), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the POTW;
(6) Wastewater having a temperature greater than 150°F (65°C), or which will inhibit biological activity in the treatment plant resulting in interference, but no case wastewater that causes the temperature at the introduction into the treatment plant to exceed 104°F (40°C);
(7) Petroleum oil, non-biodegradable cutting oil or products of mineral oil origin, in amounts (in excess of 25 mg/l) that will cause interference or pass through;
(8) Pollutants that result in the presence of toxic gasses, vapors or fumes within the POTW in a quantity that may cause acute worker health and safety problems as defined in the Occupational Safety and Health Act, 29 U.S.C. §§ 660 et seq.;
(9) Trucked or hauled pollutants, except at discharge points designated by the Superintendent in accordance with § 55.25;
(10) Noxious or malodorous liquids, gases, solids or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to quality of life, or to prevent entry into the sewers for maintenance or repair;
(11) Wastewater which imparts color that cannot be removed by the treatment process such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently impart color to the treatment plant’s effluent, thereby violating the town’s NPDES permit (IN 0024449);
(12) Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;
(13) Stormwater, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, de-ionized water, non-contact cooling water, and unpolluted wastewater, unless specifically authorized by the Superintendent;
(14) Sludges, screenings or other residues from the pretreatment of industrial wastes;
(15) Medical wastes, except as specifically authorized by the Superintendent in a wastewater discharge permit;
(16) Wastewater causing, alone or in conjunction with other sources, the treatment plant’s effluent to fail a toxicity test or to be unable to meet NPDES limitations;
(17) Detergents, surface-active agents or other substances that may cause excessive foaming in the POTW;
(18) Wastewater causing two readings on an explosion hazard meter at the point of discharge into the POTW, within the collection system, or at any point in the POTW;
(19) Any wastewater which causes a hazard to human life or creates a public nuisance. When the Superintendent determines that a user(s) is contributing to the POTW and of the enumerated substances in such amounts as to interfere with the operation of the POTW, the Superintendent shall:
(a) Advise the user(s) of the impact of the contribution of the POTW; and
(b) Require pretreatment and/or procedures to correct the interference with the POTW and eliminate the prohibited discharge.
(20) Any water or wastes subject to the categorical pretreatment standards pursuant to 40 C.F.R. § 403;
(21) Any water or waste exceeding the following parameters:
BOD | 200 mg/l |
TSS | 250 mg/l |
Ammonia | 25 mg/l |
(22) Pollutants, substances or wastewater prohibited by this section must not be processed or stored in such a manner that they could be discharged to the POTW.
(E) (1) If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in division (D) above, and which in the judgment of the Superintendent, may have a deleterious effect upon the wastewater facilities, processes, equipment or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Superintendent may:
(a) Reject the wastes;
(b) Require pretreatment to an acceptable condition for discharge to the public sewers;
(c) Require control over the quantities and rates of discharge;
(d) Require payment to cover added cost of handling and treating the wastes not covered by existing sewer charges under the provisions of § 55.04; and/or
(e) Require repayment of all costs associated with the sampling and the testing the waste stream at a certified laboratory.
(2) When considering the above alternatives, the Superintendent shall give consideration to the economic impact of each alternative on the discharger. If the Superintendent permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the Superintendent.
(F) Grease, oil and sand interceptors shall be installed in all new and existing establishments when they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts or any other flammable wastes, sand or other harmful ingredients as specified in division (D) above. Such interceptors shall not be required for private living quarters or dwelling units.
(1) All interceptors shall be the type and size as recommended by the standards set forth by the National Plumbing Code.
(2) All interceptors shall be installed by qualified persons and according to the standards set forth by the National Plumbing Code.
(3) The installation of such interceptors shall take place no later than 90 days from the adoption of this amendment to this division (F).
(4) It shall be the responsibility of the owner of the establishment to maintain and keep an accurate record of service dates, as well as, disposal methods for such interceptors.
(5) The removal and hauling of any said wastes shall be pursuant to the current laws of the state, and any amendments thereto and performed by a licensed waste hauler as required by law.
(G) Where pretreatment or flow-equalizing facilities are provided or require for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner(s) at his or her expense.
(H) When required by the Superintendent, the owner of any property served by a building sewer carrying industrial wastes shall install a suitable structure together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling and measurement of the wastes. Such structure, when required, shall be accessibly and safely located and shall be constructed in accordance with plans approved by the Superintendent. The structure shall be installed by the owner at his or her expense an shall be maintained by him or her so as to be safe and accessible at all times.
(I) The Superintendent may require a user of sewer services to provide information needed to determine compliance with this subchapter. These requirements may include:
(1) Wastewater discharge peak rate and volume over a specified time period;
(2) Chemical analyses of wastewaters;
(3) Information on raw materials, processes and products affecting wastewater volume and quality;
(4) Quantity and disposition of specific liquid, sludge, oil, solvent or other materials important to sewer use control;
(5) A plot plan of sewers of the user’s property showing sewer and pretreatment facility location;
(6) Details of wastewater pretreatment facilities; and
(7) Details of systems to prevent and control the losses of materials through spills to the municipal sewers.
(J) All measurements, tests and analyses of the characteristics of water and wastes to which reference is made in this subchapter shall be determined in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association. Sampling methods, location, times, durations and frequencies are to be determined on an individual basis subject to approval by the Superintendent.
(K) (1) No statement contained in this section shall be construed as preventing any special agreement or arrangement between the sewage works and any user whereby a waste of unusual strength or character may be accepted by the sewage works for treatment.
(2) Any wastes described in divisions (C)(1) and (C)(2) are precluded from such agreements.
(Ord. 624, passed 9-3-1996; Ord. 2009-750, passed 10-27-2009) Penalty, see § 55.99