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No person shall discharge or cause to be discharged any of the following described substances, materials, waters, or wastes to any public sewers:
(A) Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas.
(B) 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 any hazard in the receiving waters of the sewage treatment plant, or to cause the effluent from the treatment works to violate applicable effluent standards.
(C) Any waters or wastes having a pH lower than 5.5 or having any other corrosive property capable of causing damage or hazard to structure, equipment, and personnel of the sewage works.
(D) 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 and paper dishes, cups, milk containers, and the like, either whole or ground by garbage grinders.
('71 Code, § 8-6-5(C)) (Ord. 2566, passed 4-28-86) Penalty, see § 10.99
No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes to any public sewer 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, as determined in the NPDES permit received by the city or otherwise endanger life, limb, public property or constitute a nuisance. In forming his opinion as to the acceptability of these waters 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 including all limitations and prohibitions imposed by the NPDES permit of the city are:
(A) Any liquid or vapor having a temperature higher than 150° F. (65° C.).
(B) Any water or wastes containing fats, wax, grease or oils, whether emulsified or not, in excess of 100 milligrams per liter or containing substances that may solidify or become viscous at temperatures between 32° F. and 150° F. (0° C. and 65° C.).
(C) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of ¾ horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the Superintendent.
(D) Any waters or wastes containing strong acid, iron pickling wastes or concentrated plating solutions whether neutralized or not.
(E) Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to animals or create any hazard in the receiving waters of the sewage treatment plant. The following limits on the concentration by weight of various wastes as discharged to the sewer by an industry are hereby established as follows:
(1) The concentration of chromium as discharged to the sewer shall not exceed 3.0 mg/l.
(2) The concentration of zinc as discharged to the sewer shall not exceed 1.0 mg/l.
(3) The concentration of copper as discharged to the sewer shall not exceed 1.0 mg/l.
(4) The concentration of cadmium as discharged to the sewer shall not exceed 3.0 mg/l.
(5) The concentration of lead as discharged to the sewer shall not exceed 1.0 mg/l.
(6) The concentration of nickel as discharged to the sewer shall not exceed 8.0 mg/l.
(7) The concentration of silver as discharged to the sewer shall not exceed 1.0 mg/l.
(8) The concentration of mercury as discharged to the sewer shall not exceed 0.0005 mg/l.
(9) No waste discharged to municipal sewer system shall contain detectable levels of cyanide at any time except as permitted below:
(a) Any person desiring to discharge cyanide or cyanogen compounds to the municipal sewer system shall apply for and procure approval from the city. The application shall contain sufficient information on discharge concentrations, flows, and the like to provide adequate data to enable the city and its representatives to evaluate the discharge and secure required Illinois Environmental Protection Agency approval.
(b) When permitted, total cyanide shall not exceed 10 mg/l, provided any sample tested shall not release more than two mg/l of cyanide when tested at a pH of 4.5 and at a temperature of 150° F. for a period of 30 minutes. Such discharges shall be permitted only when the Agency has determined that no violation of the effluent criteria of 0.025 mg/l concentration (alone or in combination with other sources) will result from such discharge.
(c) 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.
(d) 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.
(F) Any waters or wastes having a pH in excess of 9.5.
(G) Materials which exert or cause:
(1) Unusual concentrations of inert suspended solids (such as, but not limited to, Fullers earth, lime slurries, and lime residue) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate).
(2) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions).
(3) Unusual BOD, chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
(4) Unusual volume of flow or concentration of wastes constituting “slugs” as defined herein.
(H) 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 including the NPDES permit of the city.
(I) All exhaust from steam engines and all blow offs from steam boilers shall be first connected with a proper basin, and shall not be allowed to connect directly with the public sewers without special permission from the approving authority.
('71 Code, § 8-6-5(D)) (Ord. 2566, passed 4-28-86) Penalty, see § 10.99
(A) 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 § 51.062, and/or which are in violation of the standards for pretreatment provided in 40 CFR 403, June 26, 1978 and any amendments thereto, 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) Reject the wastes, and require the violator to cease and desist discharging said materials into the sewer system immediately.
(2) Require pretreatment to an acceptable condition for discharge and also require payment to cover the added costs of handling and treating the wastes not covered by the existing sewer charges.
(B) If the Superintendent permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to review and approval of the Superintendent and subject to the requirements of all applicable codes, ordinances and laws.
('71 Code, § 8-6-5(E)) (Ord. 2566, passed 4-28-86)
Grease, oil and sand interceptors shall be provided when, in the opinion of the Superintendent, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand, or other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the Superintendent, and shall be located as to be readily and easily accessible for cleaning and inspection.
('71 Code, § 8-6-5(F)) (Ord. 2566, passed 4-28-86) Penalty, see § 10.99
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.
('71 Code, § 8-6-5(G)) (Ord. 2566, passed 4-28-86)
Each new industry shall be required to install a control manhole, and when required by the Superintendent, the owner of any property serviced by an existing building sewer carrying industrial or commercial 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.
('71 Code, § 8-6-5(H)) (Ord. 2566, passed 4-28-86) Penalty, see § 10.99
(A) The owner of any property serviced by a building sewer carrying industrial wastes shall provide laboratory measurements, tests and analyses of waters and wastes to illustrate compliance with this chapter and any special conditions for discharge established by the city or regulatory agencies having jurisdiction over the discharge.
(B) The number, type and frequency of laboratory analyses to be performed by the owner shall be as stipulated by the city, but no less than once per year the industry must supply a complete analysis of the constituents of the wastewater discharge to assure that compliance with the federal, state and local standards are being met. The owner shall report the results of measurements and laboratory analyses to the city at such times and in such manner as prescribed by the city. The owner shall bear the expense of all measurements, analyses, and reporting required by the City. At such times as deemed necessary, the city reserves the right to take measurements and samples for analysis by an outside laboratory service.
('71 Code, § 8-6-5(I))
(C) All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of IEPA division of Laboratories Manual of Laboratory Methods, 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 out-falls of a premises is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from 24-hour composites of all outfalls, whereas pH's are determined from periodic grab samples.
('71 Code, § 8-6-5(J))
(D) Any person discharging wastes having concentrations greater than the normal concentrations as set forth herein shall upon notification by the approving authority install a composite sample with a compatible pacing (metering) device for monitoring said substances. The pacing and sampling devices shall be of a type approved by the Superintendent. All testing and measuring procedures for the analysis of pollutants shall be in conformance with title 40-CFR-part 136.
(E) The cost of all required measurements, tests and analyses shall be borne by the contributor.
('71 Code, § 8-6-5(K))
(Ord. 2566, passed 4-28-86)
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