§ 51.38 USE OF PUBLIC SEWERS.
   (A)   Prohibition on unpolluted water. No person shall discharge or cause to be discharged any (unpolluted) storm water, surface water, ground water, roof runoff, subsurface drainage, uncontaminated cooling water, or unpolluted industrial process waters to any sanitary sewer. Any existing roof drain connections to sanitary or combined sewers shall be connected into an available storm sewer or shall be disconnected above ground in the manner approved by the Board of Public Affairs. The owner of all buildings situated within the village is required at his or her expense to disconnect all existing roof drains from sanitary and combined sewers in accordance with the provisions of this chapter within 90 days after the date of official notice to do so.
   (B)   Allowable discharge of unpolluted water. Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm drain or to a natural outlet approved by the Board of Public Affairs and other regulatory agencies. Unpolluted industrial cooling water or process waters may be discharged on approval of the Board of Public Affairs to a storm sewer or natural outlet.
   (C)   Substances prohibited. No person(s) shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers or treatment works:
      (1)   Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas;
      (2)   Any waters or wastes having a pH lower than 6.0 or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the wastewater works.; or
      (3)   Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interferences with the proper operation of the wastewater facilities such as, but not limited to: ashes, bones, cinder, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, underground 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)   Substances limited. 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. Deliberate dilution with unpolluted water to meet the concentrations established in the regulations below shall not be acceptable. In forming his or her opinion as to the acceptability, the Superintendent will give consideration to such facts as the quantity of subject waste in relation to flows and velocities in the sewers, materials of construction of 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 wastewater discharged to the sanitary sewer which shall not be violated without approval of the Superintendent are as follows:
      (1)   Wastewater having a temperature higher than 150°F;
      (2)   Wastewater containing more than 50 mg/l of petroleum oil, nonbiodegradable cutting oils, product of mineral oil origin, or floatable oils, fat, wax, or grease;
      (3)   Any garbage that has not been properly shredded. Garbage grinders may be connected to sanitary sewers from homes, hotels, institutions, restaurants, hospitals, catering establishments, or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers;
      (4)   Any waters or wastes containing solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the wastewater treatment plant, including, but not limited to, cyanides, hexavalent chromium, copper, zinc, cadmium, nickel, and phenols in the wastes as discharged to the public sewer.
         (a)   The following concentrations shall not be exceeded in industrial wastes discharged to the public sewers.
Cadmium
0.2 mg/l
Copper
1.0 mg/l
Hexavalent chromium
1.0 mg/l
Lead
0.5 mg/l
Mercury
0.01 mg/l
Nickel
2.0 mg/l
Phenols
0.2 mg/l
Silver
0.2 mg/l
Total cyanide (CN)
0.5 milligrams per liter (mg/l)
Zinc
1.0 mg/l
 
         (b)   These maximum concentrations may be changed as necessary by the Superintendent or state regulatory agencies based on new information concerning inhibitory substances or to protect treatment plant processes. Industrial dischargers covered by federal pretreatment requirements shall meet those limitations specified under the effluent guidelines published under §§ 204(b) and 307(b) of the Federal Act, being 33 U.S.C. § 1284(b) and 33 U.S.C. § 1317, respectively, or the above concentrations, whichever is more stringent. Major contributing industries discharging incompatible pollutants into the public sewers shall be regulated as provided in this section and §§ 51.37 and 51.39.
      (5)   Any waters or waste containing odor-producing substances exceeding limits which may be established by the Superintendent or any local or state regulatory agencies;
      (6)   Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits in compliance with applicable state or federal regulations;
      (7)   Quantities of flow, concentrations, or both which constitute a “slug” as defined herein;
      (8)   Waters or wastes containing substances which are not amendable to treatment or reduction by the wastewater treatment processes employed, or are amenable only to such degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters; and
      (9)   Any water or wastes which by interaction with other water or wastes in the public sewer system, release obnoxious gases, form suspended solids which interfere with the collection system, or create a condition deleterious to structures and treatment processes.
   (E)   Authority for control of wastewater discharges.
      (1)   If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which contain the substances or possess the characteristics enumerated in divisions (C) and (D) above, and which in the judgment of the engineer may have a deleterious effect upon the wastewater facilities, processes, equipment, or receiving waters, including violation of applicable water quality standards, or which otherwise create a hazard to life or constitute a public nuisance, the engineer 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 cost of handling and treating the wastes under the provisions of division (C) above.
      (2)   All industrial wastes discharged to the public sewers by major contributing industries shall at a minimum meet the national pretreatment standards or best practical control technology currently available for incompatible pollutants as published in Title 40 C.F.R. Part 125 unless the village is committed, in its NPDES permit, to remove a specified percentage of the incompatible pollutant. In these instances, the applicable pretreatment standards may be correspondingly reduced to levels determined by the engineer, or his or her duly authorized representative, or state regulatory agencies.
      (3)   If the engineer requires 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 engineer and state regulatory agencies and subject to the requirements of all applicable codes, ordinances, and laws.
   (F)   Protection from damage. No unauthorized person shall maliciously, willfully, or negligently break, damage, destroy, uncover, deface, or tamper with any structure, appurtenance, or equipment which is a part of the municipal waste works. Any person violating this provision shall be subject to immediate arrest under charge of criminal damage or vandalism.
   (G)   Powers and authority of inspectors.
      (1)   The Authority, bearing proper credentials and identification, shall be permitted to enter all private properties through which the Authority holds a duly negotiated easement for the purpose of, but not limited to, inspection, observation, measurement, sampling, repair, and maintenance of any portion of the sewage works lying within such easement. All entry and subsequent work, if any, on such easement shall be done in full accordance with the terms of the duly negotiated easement pertaining to the private property involved.
      (2)   While performing the necessary work on private properties, the Authority shall observe all safety rules applicable to the premises established by the owner and the Authority.
      (3)   The Authority, bearing proper credentials and identification, shall present them to the owner, agent, or present occupant of properties before entering for the purpose of inspection, observation, measurement, sampling, and testing, in accordance with the provisions contained herein. The Authority shall also obtain and present a proper search warrant if the owner, agent, or present occupant requests one. A request by the owner, agent, or present occupant that the Authority obtain a search warrant is an exercisable right of the requesting party and shall not constitute failure to cooperate, nor shall it constitute a failure to comply with the provisions herein. The Authority shall have no right to inquire into any processes, including metallurgical, chemical, oil, refining, ceramic, paper, or other industries beyond the point of having a direct bearing on the kind and source of discharge into the sewers or waterways to facilities for waste treatment.
   (H)   Limiting sewer connections. The Authority shall limit connections into sewer lines if sufficient capacity to handle and treat additional wastewater is unavailable in the system.
      (1)   Any person applying for a permit to connect to a public sewer shall provide, with the application for said building sewer permit, sufficient data, as required by the Authority, regarding the location, type of wastewater, and amount of flow to be conveyed to the public sewer.
      (2)   Any costs associated with additional charges herein shall be borne by the person applying for the building sewer permit.
   (I)   Grease and oil interceptors. For grease, oil, and inorganic material such as sand, grit, and the like, interceptors shall be provided when, in the opinion of the engineer, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts, as specified in division (D)(2) above, 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 engineer, and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner(s) shall be responsible for the proper removal and disposal by appropriate means of the captured materials and shall maintain records of the dates and means of disposal which are subject to review by the Superintendent. Any removal and hauling of the collected materials not performed by the owner(s) personnel must be performed by currently licensed waste disposal firms.
   (J)   Operation of pretreatment facilities. Where pretreatment or if low-equalizing facilities are provided or required for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner(s) at his or her expense.
   (K)   Analyses. All measurements, tests, and analyses of the characteristics of waters 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.
   (L)   Special conditions. 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 possible payment therefor by the industrial concern for subsequent treatment. Any industrial concern may appeal to the Council any determination made by the engineer in the enforcement of this subchapter.
(Ord. 1121, passed 11-18-1997) Penalty, see § 51.99