A.    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 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 operating 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.

    B.    National categorical pretreatment standards as promulgated by the United States Environmental Protection Agency (EPA) pursuant to the Act, found in 40 CFR Chapter I, Subchapter N, Parts 405-471, are incorporated into this chapter and shall be met by all dischargers of the regulated industrial categories.

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

    1.    Any liquid or vapor having a temperature higher than one hundred fifty degrees Fahrenheit (sixty-five degrees Celsius) or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed one hundred four degrees Fahrenheit (forty degrees Celsius);

    2.    Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of one hundred mg/l. This one hundred mg/l shall be given as nonpolar oil and grease as defined in the latest edition of standard methods and interpreted to mean petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or a pass through condition at the wastewater treatment plant. Polar oil and grease discharges shall not cause interference in the collection works or the wastewater treatment plant;

    3.    Any garbage that has not been properly shredded. The installation and operation of any garbage grinder (other than in a residence) may be subject to the review and approval of the director;

    4.    Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not;

    5.    The following pollutant limits are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of parameters listed in the following Table 13.16.030(C):

    6.    Dischargers shall meet the most stringent discharge limitation, federal, state or local;

    7.    Any waters or wastes containing phenols, in excess of limitation given in Table 13.16.030(C), or other taste or odor-producing substances after treatment of the composite sewage, in such concentrations exceeding limits which may be established by the director as necessary to meet the requirements of the state, federal or other public agencies of jurisdiction for such discharge to the respective waters;

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

    9.    Any waters or wastes having a pH of less than 6.0 or in excess of 11.0, or otherwise causing corrosive structural damage to the POTW or equipment, or endangering city personnel;

    10.    Materials which exert or cause:

    a.    Unusual concentrations of inert, suspended solids (such as but not limited to, Fullers earth, lime slurries and lime residuals) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate),

    b.    Excessive discoloration which cannot be removed by normal treatment operations (such as, but not limited to, dye wastes and vegetable tanning solutions). Color (in combination with turbidity) shall not cause the treatment plant effluent to reduce the depth of the compensation point for photosynthetic activity by more than ten percent from the seasonably established norm for aquatic life,

    c.    Unusual BOD chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment plant,

    d.    Unusual volume of flow or concentration of wastes constituting "slugs" as defined in this chapter,

    e.    Any biohazardous medical wastes, except as specifically authorized by the director,

    f.    Any wastewater causing the treatment plant to fail a toxicity test,

    g.    Any trucked or hauled pollutants, except at discharge points designated by the director,

    h.    Any wastes containing detergents, surface active agents, or other substances which may cause excessive foaming in the POTW;

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

    12.    Require facilities to prevent accidental discharge of any unacceptable wastes; and

    13.    Require payment to cover the added cost of handling and treatment the wastes not covered by sewer charges under the provisions of Ordinance No. 2587 of the city and all ordinances amendatory thereof and supplemental thereto, and any fines, penalties or damages assessed against the city for discharge of such wastes.

    D.    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.

    1.    Any substance which may cause the POTW's effluent or treatment residues, sludges, or scums, to be unsuitable for reclamation and reuse or to interfere with reclamation process. (In no case, shall a substance discharged to the POTW cause the POTW to be in noncompliance with sludge use or disposal criteria, guidelines or regulations developed under Section 405 of the Clean Water Act; any criteria, guidelines, or regulations pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substances Control Act, or state standards applicable to the sludge management method being used.)

    E.    The city shall assess charges for fees and fines to industrial users of the POTW to compensate the city utility for the cost of administration of the pretreatment program. The utility service board may adopt charges and fees which may include, but are not limited to:

    1.    Application fees for discharge permits;

    2.    Application fees for construction permits;

    3.    Fees charged to industries, monitoring;

    4.    Fees charged to industries, inspections;

    5.    Surcharges for high strength or high volume wastes;

    6.    Fees for filing appeals;

    7.    Fees for reviewing accidental discharge procedures and construction;

    8.    Fees for investigating and processing notices of violations;

    9.    Fines for discharge of noncompatible waste.

    10.    The city may assess charges for fees and fines for any users of the POTW who discharge unpolluted waters to the sewerage system.

    F.    The city may establish in wastewater discharge permits, more stringent standards or requirements on discharges to the POTW if deemed necessary to comply with the intent of this chapter.

    G.    Effluent limitations are based on the most stringent level whether federal, state or local.

    H.    The control authority may develop equivalent mass and concentration limits in lieu of production-based standards. A further explanation of this method is given in 40 CFR 403.6.

    I.    Any industrial user wishing to change a compliance monitoring point from end of process to end of pipe may do so with the approval of the director. Limitations in this situation will be determined by the combined wastestream formula (40 CER 403.6(e)).

    1.    Storm water and demineralizer backwash will be considered "unregulated waste streams."

    2.    Samples must be flow-proportioned where only nonregulated waste streams are combined after treatment but prior to the monitoring/control point.

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

    K.    Any industrial wastes discharged into the public sewers shall be subject to periodic inspection and determination of volume, character and concentration. The examination shall be made as often as the director deems it necessary and may include the use of suitable continuously monitoring instruments in appropriate cases. Samples shall be collected either manually or by approved mechanical devices and in such a manner as to be representative of the overall composition of the wastes. Every care shall be exercised in collecting the samples to insure their preservation, until analyzed, in a state comparable to that at the time the samples were collected.

    L.    The installation, operation and maintenance of the flow measuring and sampling facilities shall be the responsibility of the person discharging the wastes and shall be subject to the approval of the director. When required by the director, the owner of any property served by a building sewer carrying industrial wastes shall install a suitable control manhole 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 director. 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. If the owner fails to properly maintain the manhole or any flow measuring device used in compliance control or monthly billing, the utility shall have the right to make such repairs to make the facilities operational and to charge such expenses to the owner.

    M.    The director, inspector, and other duly authorized employees of the city, state water pollution control employees and U.S. Environmental Protection Agency employees bearing proper credentials and identification shall be permitted to enter all properties for the purposes of inspection, observation, measurement, sampling, and testing in accordance with the provisions of this chapter including the right to enter the properties of an industrial user shall be the right to inspect and copy any records pertinent to monitoring.

    N.    While performing the necessary work on private properties referred to in subsection M of this section, the director or duly authorized employees of the city shall observe all safety rules applicable to the premises established by the company and the company shall be held harmless for injury or death to the city or damage to its property by city employees and against liability claims and demands for personal injury or property damage asserted against the company and growing out of the gauging and sampling operation, except as such may be caused by negligence or failure of the company to maintain safe conditions.

    O.    Fats, grease, oil and sand interceptors shall be provided when, in the opinion of the director, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand and other harmful ingredients. All interceptors shall be of a type and capacity approved by the director, and shall be located as to be readily and easily accessible for cleaning and inspection. Provided, however, that approval of any such interceptors by the director shall not relieve any person of the responsibility of complying with the discharge requirements of this chapter.

    P.    Fats, grease, oil and sand 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.

    Q.    Where installed, all fats, grease, oil and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times.

    R.    The admission into the public sewers of any waters or wastes having: (a) a five day biochemical oxygen demand greater than two hundred fifty milligrams per liter by weight, or (b) containing more than two hundred fifty milligrams per liter by weight of suspended solids, or (c) containing any quantity of substance having the characteristics described in subsection C of this section, or (d) having an average daily flow greater than five percent of the average daily sewage flow of the city, shall be subject to the review and approval of the director. Where necessary in the opinion of the director, the owner shall provide at his expense, such preliminary treatment as may be necessary to: (a) reduce the biochemical oxygen demand to two hundred fifty milligrams per liter and the suspended solids to two hundred fifty milligrams per liter by weight, or (b) reduce objectionable characteristics or constituents to within the maximum limits provided in subsection C of this section, or (c) control the quantities and rates of discharge of such waters or wastes. Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the director and of the Indiana Department of Environmental Management, and no construction of such facilities shall be commenced until such approval is obtained in writing.

    S.    Where preliminary treatment facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation, by the owner at his expense.

    T.    All measurements, tests and analyses of the characteristics of waters and wastes to which reference is made in subsection C of this section shall be determined in accordance with 40 CFR Part 136.

    U.    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 sewage works. Any person violating this provision shall be subject to immediate arrest under charge of disorderly conduct.

    V.    Pretreatment of industrial wastes from major contributing industries prior to discharge to the treatment works where necessary to meet the conditions given in this permit.

    W.    Plans, specifications and any other pertinent information relating to pretreatment or control facilities shall be submitted for approval of the city and the state of Indiana and no construction of such facilities shall be commenced until approval, in writing, is granted. Where such facilities are provided, they shall be maintained continuously in satisfactory and effective operating order by the owner at his expense and shall be subject to periodic inspection by the city to determine that such facilities are being operated in conformance with applicable federal, state and local laws and permits.

    X.    Industrial cooling water, which may be polluted with insoluble oils or grease or suspended solids, shall be pretreated for removal of pollutants and the resultant clear water shall be discharged in accordance with Section 13.16.020 (R) and (S) of this chapter.

    Y.    No discharger shall increase the use of potable or process water in any way, nor mix separate waste streams for the purpose of diluting a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the standards set forth in this chapter. The director may impose mass limitations, in addition to those listed in this chapter, on industrial users using dilution to meet applicable pretreatment standards. (Ord. 99-16 (part), 1999)