§ 28-90. Use of public sewers.

(a)

No person shall discharge, or cause to be discharged, any stormwater, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water or unpolluted industrial process waters to any sanitary sewer.

(b)

Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the village. Industrial cooling water or unpolluted process waters may be discharged on approval of the village, to a storm sewer, combined sewer, or natural outlet.

(c)

No person 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 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.

(3)

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.

(4)

Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with 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, etc., either whole or ground by garbage grinders.

(d)

No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes:

(1)

If it appears likely in the opinion of the village that such wastes can harm either the sewers, sewage treatment process or equipment;

(2)

Have an adverse effect on the receiving stream; or

(3)

Can otherwise endanger life, limb, public property or constitute a nuisance.

In forming an opinion as to the acceptability of these wastes, the village 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 maximum limits established by regulatory agencies.

(e)

The substances prohibited include, but is not limited to, the following:

(1)

Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit (65 degrees Celsius).

(2)

Any waters or wastes containing toxic or poisonous materials; 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 degrees Fahrenheit.

(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.

(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 such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the village for such materials.

(6)

Any waters or wastes containing phenols or other taste or odor-producing substances, in such concentrations exceeding limits which may be established by the village 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.

(7)

Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the village in compliance with applicable state or federal regulations.

(8)

Any wastes or waters having a pH in excess of 9.5.

(9)

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 in compliance with applicable state and federal regulations.

(10)

Any cyanide in excess of 0.025 mg/l at any time except as permitted by the village in compliance with applicable state and federal regulations.

(11)

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 concentrations of water constituting "slugs" as that term is defined herein.

(12)

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.

(f)

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 subsection (d) of this section, 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 village 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 village may:

(1)

Reject the wastes;

(2)

Require pretreatment to an acceptable condition for discharge to the public sewers;

(3)

Require control over the quantities and rates of discharge; and/or

(4)

Require payment to cover the added costs of handling and treating the wastes not covered by existing taxes or sewer charges, under the provisions of subsection (k) of this section.

If the village 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 village, and subject to the requirements of all applicable codes, ordinances and laws.

(g)

All new or altered installation serving institutions or commercial establishments in which grease, fats, culinary oils, or similar waste products from kitchens or food processing areas, or in which grease, fats or culinary oils are wasted in connection with utensil, vat, dish, or floor cleaning processes shall install grease interceptors. All waste lines and drains carrying culinary oil, grease or fats in the type of establishment set forth in this subsection shall be directed to one or more interceptors before connection to the plumbing system. All interceptors shall be of a type and capacity approved by the village, and shall be located as to be readily and easily accessible for cleaning and inspection.

(1)

The minimum required features of all interceptors are as follows:

a.

The flow rate shall be sufficient to handle the maximum demand of the connected system; and

b.

The interceptors shall be constructed of durable corrosion-resistant materials and shall have watertight covers securely fastened in place.

(2)

No grease interceptor shall receive the discharge from a food waste grinder or a commercial dishwashing machine.

(3)

Water-cooled grease interceptors are prohibited.

(4)

A grease interceptor is not required for individual dwelling units or any private living quarters.

(h)

Where preliminary treatment or flow-equalizing facilities are provided, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense.

(i)

Each industry shall be required to install a control manhole and, when required by the village, 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 accessible and safely located, and shall be constructed in accordance with plans approved by the village. 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.

(j)

The owner of any property serviced by a building sewer carrying industrial wastes shall provide laboratory measurements, tests and analyses of water and wastes to illustrate compliance with this article and any special conditions for discharge established by the village or regulatory agencies having jurisdiction over the discharge. The number, type and frequency of laboratory analyses to be performed by the owner shall be as stipulated by the village, but no less than once per year the industry must supply a complete analysis of the constituents of the wastewater discharge to ensure 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 village at such times and in such manner as prescribed by the village. At such times as deemed necessary, the village reserves the right to take measurements and samples for analyses by an outside laboratory service. The owner shall bear the expense of all such measurements, analyses, and reporting required by the village.

(k)

All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this article 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 outfalls 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 pHs are determined from periodic grab samples.

(l)

No statement contained in this article shall be construed as preventing any special agreement or arrangement between the village and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the village for treatment, subject to payment therefor, in accordance with division 2 of this article, by the industrial concern provided such payments are in accordance with federal and state guidelines for user charge systems.