§ 51.022  SUBSTANCES WHICH INTERFERE WITH PUBLICLY-OWNED TREATMENT WORKS.
   No user shall contribute, cause to be contributed, or permit to be contributed, directly or indirectly, any pollutant, wastewater, or industrial waste which will interfere with the operation of the POTW or endanger the life, health, or safety of any personnel engaged in operating and maintaining such POTW or in the operation and . maintaining of the sanitary sewage collection systems. These general prohibitions apply to all users of the city sanitary sewer collection system and the POTW, whether or not the user is subject to national categorical pretreatment standards or any national, state, or local pretreatment standards or requirements. A user shall not contribute to the sewage collection system or to the POTW any of the following substances.
   (A)   Any liquids, solids, or gases which by reason of their nature or quantity are, or may be sufficient, either alone or by interaction with other substances, to cause explosion or fire, or to be injurious in any way to the collection system or treatment plant or to the operation of the collection system or treatment plant, or to cause a threat to the life, health, or safety of the personnel engaged in the operation and maintenance of the collection system or treatment plant. A1 no time shall such substances be of sufficient volume or strength to cause two successive readings on an explosion hazard meter at the point of discharge into the system (or at any other point) to be more than 5%, nor any single reading to be more than 10% of the Lower Explosive Limit (LEL) of the meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzine, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides, and any other substance which the city, state, or federal government or any agencies thereof have notified the user is an explosion hazard, fire hazard, or a hazard to the system.
   (B)   Any wastewater or industrial waste containing toxic pollutants in sufficient quantity, either alone or by interaction or reaction with other pollutants, to injure or interfere with the wastewater treatment process, constitute a hazard to life, health, or safety of humans or animal and/or to create a toxic effect in the receiving waters of the POTW, or to exceed the limitations set forth in the categorical pretreatment standard in effect at the time of discharge. A toxic pollutant shall include, but shall not be limited to, any pollutant identified pursuant to Section 307 (a) of the Act as amended.
   (C)   Any waters or wastes, wastewaters, or industrial wastes having a pH of less than 6.0 or more than 9.0 or having any other corrosive properties capable of causing damage or hazard or injury to the sewage collection system or structures, equipment, or personnel of the POTW.
   (D)   Any slug or load of pollutants, including, but not limited to, oxygen demanding pollutants (BOD and the like) released at a flow or concentration that will cause interference with the operation of the POTW.
   (E)   Any solid or viscous substances in quantities or of such size to be capable of causing obstructions to the flow in sewers, or to interfere with the proper operation of the wastewater facilities including the collections system and the POTW such as, but not limited to, ashes, bones, cinders, sand, mud, straw, wood shavings, metal shavings, metal, metal grindings, glass, rags, feathers, tar, plastic, wood, whole blood, paunch manure, hair, fleshings, entrails, paper dishes, cups, milk containers, either whole or ground, spent lime, stone or marble dust, grass clippings, spent grains, spent hops, waste paper, gas, asphalt residues, unground garbage, residues from refining or processing fuel or lubricating oils, or glass or metal grinding or polishing wastes.
   (F)   Any wastewater with objectionable color not readily removable in the POTW, but in no case wastewater with a color at the introduction into the collection system that exceeds 300 ADMI units.
   (G)   Any wastewater having a temperature which will inhibit biological activity in POTW (treatment plant) resulting in interference with the treatment process, and in no case with a temperature at the point of introduction into the collection system of a temperature exceeding 150°F. (65° C.).
   (H)   Any noxious or malodorous liquids, gases, or solids which, either individually or by interaction or reaction with other wastes, are sufficient to create a nuisance or are hazardous to life, health, or safety; or sufficient to prevent or restrict entry into the sewers or appurtenances for their maintenance or repair.
   (I)   Any substance which will or may cause the POTW's effluent or any other product of the POTW such as sludges, residues, or scum to be unsuitable for reclamation or reuse, or to substantially interfere with any reclamation process. In no case shall any substance be discharged into the sewage collection system to cause the POTW or any discharge or products from it to be in noncompliance with sludge use or disposal criteria, guidelines, or regulations developed under or pursuant to Section 4.05 of the Act; any criteria, guidelines, or regulations affecting sludge use or disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substance Control Act, or state criteria applicable to the sludge management method(s) being used by the city at the time of the discharge.
   (J)   Any substance which will cause the city or its POTW to violate its NPDES/KPDES or its sludge disposal system permit or to violate the receiving water quality standards fixed by any state or federal agency having jurisdiction over such matters.
   (K)   Any wastewater containing any radioactive wastes or isotopes having a half-life or concentration as may exceed limits established by the city in compliance with applicable state or federal laws or regulations.
   (L)   Any wastewater containing concentrations of acids, iron pickling wastes, or plating solutions of such strength and concentration as to be injurious to the POTW or any discharge or sludge therefrom.
   (M)   Any wastewater which constitutes or causes a hazard to human life, health, or safety or which is or causes a public nuisance.
(Ord. 408-1986, passed 9-25-86) Penalty, see § 51.999