A. Storm And Surface Waters:
1. No person shall discharge, or cause to be discharged, any storm water, surface water, ground water, roof runoff, subsurface drainage, uncontaminated cooling water, or water from any private well or private water system, or unpolluted industrial process waters to any sanitary sewer.
2. Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as storm sewers, or to a natural outlet approved by the director of public works. Industrial cooling water or unpolluted process waters may be discharged, on approval of the director of public works, to a storm sewer or natural outlet.
B. Prohibited Discharges: 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 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, etc., either whole or ground by garbage grinders.
C. Discharges Subject To Review:
1. 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 director of public works, 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 director of public works 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, and maximum limits established by regulatory agencies. The substances prohibited are:
a. Any liquid or vapor having a temperature higher than one hundred fifty degrees Fahrenheit (150°F) (65°C).
b. Any waters or wastes containing toxic or poisonous materials, or oils, whether emulsified or not, in excess of one hundred milligrams per liter (100 mg/l) or containing substances which may solidify or become viscous at temperatures between thirty two (32) and one hundred fifty degrees Fahrenheit (150°F) (0 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 one horsepower or greater shall be subject to the review and approval of the director of public works.
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 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 director of public works for such materials.
f. Any waters or wastes containing phenols or other taste- or odor-producing substances, in such concentrations exceeding limits which may be established by the director of public works as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal, or other public agencies or jurisdiction for such discharge to the receiving waters.
g. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the director of public works in compliance with applicable state or federal regulations.
h. Any waters or wastes having a pH in excess of 9.5.
i. Any mercury or any of its compounds in excess of 0.0005 milligrams per liter as Hg at any time except as permitted by the director of public works in compliance with applicable state and federal regulations.
j. Any cyanide in excess of 0.025 milligrams per liter at any time except as permitted by the director of public works in compliance with applicable state and federal regulations.
k. Materials which exert or cause:
(1) Unusual concentrations of inert, suspended solids (such as, but not limited to, fuller's earth, lime slurries, and lime residues) 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 concentrations of wastes constituting "slugs" as defined herein, 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.
2. If any waters or wastes are discharged or are proposed to be discharged to the public sewers, whose waters contain the substances or possess the characteristics enumerated in subsection C1 of this section, and/or which are in violation of the standards for pretreatment provided in 40 CFR 403, June 1978, and any amendments thereto, and which, in the judgment of the director of public works, 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 director of public works 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; and/or
d. 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 H of this section.
3. If the director of public works permits the pretreatment or equalization of waste flows, the design and installation of the plans and equipment shall be subject to the review and approval of the director of public works and subject to the requirements of all applicable codes, ordinances, and laws.
D. Interceptors:
1. Interceptors Required: Grease, oil, and sand interceptors shall be provided when, in the opinion of the director of public works, 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.
2. Specifications:
a. All interceptors shall be of a type and capacity approved by the director of public works and shall be located as to be readily and easily accessible for cleaning and inspection.
b. Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight, and equipped with easily removable covers which, when bolted in place, shall be gastight and watertight.
3. Maintenance: Where installed, all grease, oil and sand interceptors shall be maintained by the owner at his expense, in continuously efficient operation at all times.
E. Pretreatment: 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.
F. Control Manhole: Each industry shall be required to install a control manhole and, when required by the director of public works, 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 director of public works. 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. Measurements, Tests And Analyses:
1. 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 village or regulatory agencies having jurisdiction over the discharge.
2. 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 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 village at such times and in such manner as prescribed by the village. The owner shall bear the expense of full measurements, analyses, and reporting required by the village. At such times as deemed necessary, the village reserves the right to take measurements and samples for analysis by an outside laboratory service.
3. 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 "Standard Methods for the Examination of Water and Wastewater", published by the American public health association, 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 twenty four (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 twenty four (24) hour composites of all outfalls whereas pHs are determined from periodic grab samples.
H. Special Agreements: No statement contained in this section 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 by the industrial concern, provided such payments are in accordance with federal and state guidelines for user charge system. (Ord. 87-33A, 10-20-1987)