No user shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation or performance of the POTW. These general prohibitions apply to all such users of a POTW whether or not the user is subject to National Categorical Pretreatment Standards or any other national, state, or local pretreatment standards or requirements. A user may not contribute the following substances to any POTW:
(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 fire or explosion or be injurious in any other way to the POTW or to the operation of the POTW. At no time shall two successive readings on an explosion hazard meter, at the point of discharge into the system (or at any point in the system), be more than 5%, nor any single reading over 10% of the lower explosive limit (LEL) of the meter.
Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides and sulfides and any other substances which the Control Authority, the state or EPA has notified the user is a fire hazard or a hazard to the system. The discharge of waste streams with a closed cup flashpoint of less than 140° F. or 60° C. using the test method specified in 40 CFR 261.21, is prohibited.
(B) Solids or viscous substances which may cause obstruction to the flow in a sewer or other interference with the operation of the wastewater treatment facilities such as, but not limited to: grease, garbage with particles greater than one-half inch (1/2") in any dimension, animal internal organs, paunch manure, bones, hair, hides or fleshing, entrails, whole blood, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, waste paper, wood, plastics, gas, tar asphalt residues, residues for refining or processing of fuel, lubricating oil, mud, glass grinding, polishing wastes or paper products such as cups, dishes, napkins, milk containers.
(C) Any wastewater having a pH less than 6.0 or higher than 9.0, unless the POTW was specifically designed to accommodate such wastewater, or wastewater having any other corrosive property capable of causing damage to structures, equipment and/or personnel of the POTW.
(D) Any wastewater containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a toxic effect in the receiving waters of the POTW, or to exceed the limitation set forth in a Categorical Pretreatment Standard. A toxic pollutant shall include, but not be limited to any pollutant identified pursuant to Section 307(a) of the Act.
(E) Any noxious or malodorous liquids, gases, or solids which either singly or by interaction with other wastes are sufficient to create a public nuisance or hazard to life or are sufficient to prevent entry into the sewers for their maintenance and repair.
(F) Any substance which may cause the POTW's effluent or any other product of the POTW, such as residues, sludges or scum, to be unsuitable for reclamation and reuse or to interfere with the reclamation process where the POTW is pursuing a reuse and reclamation program. 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 Act, the Toxic Substance Control Act, or state criteria applicable to the sludge management method being used.
(G) Any substance which will cause the POTW to violate its KPDES and/or State Solid Waste Disposal System Permit or the receiving water quality standards as defined by 401 KAR Chapter 5, Section 031.
(H) Any wastewater with objectionable color, as defined by the Approval Authority, not removed in the treatment process, such as, but not limited to dye wastes and vegetable tanning solutions.
(I) Any wastewater having a temperature which will inhibit biological activity in the POTW treatment plant resulting in interference, including but not limited to discharges that cause the temperature at the introduction into the POTW to exceed 40° C. (104° F.).
(J) Any pollutants, including oxygen demanding pollutants (BOD, and the like) released at a flow and/or pollutant concentration which a user knows or has reason to know will cause interference to the POTW. In no case shall a slug load have a flow rate or contain concentration or qualities of pollutant that exceed, for any time period longer than 15 minutes, more than five times the average 24-hour concentration, quantities or flow during normal operation.
(K) Any wastewater containing any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Control Authority in compliance with applicable state or federal regulations.
(L) Any wastewater which causes a hazard to human life or creates a public nuisance.
(M) Any water containing fats, wax, grease 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° F. and 150° F. The discharge of petroleum oil, non-biodegradable cutting oil, or products of mineral oil, or products of mineral oil origin in amounts that will cause interference or pass-through is prohibited.
(N) Except where expressly authorized to do so by an applicable pretreatment standard or requirement, no industrial user shall ever increase the use of process water, or in any other way attempt to dilute a discharge as a partial or complete substitute for adequate treatment or to achieve compliance with a pretreatment standard or requirement. The Control Authority may impose mass limitations on industrial users which are using dilution to meet applicable pretreatment standards or requirements, or in other cases where the imposition of mass limits is appropriate. When the Superintendent determines that a user(s) is contributing to the POTW any of the above enumerated substances in such amounts as to interfere with the operation of the POTW, the Superintendent shall:
(1) Advise the user(s) of the impact of the contribution on the POTW;
(2) Develop effluent limitation(s) for such user to correct the interference with the POTW.
(O) Trucked or hauled pollutants.
(1) The Superintendent may require haulers of industrial waste to obtain individual wastewater discharge permits. The Superintendent requires generators of hauled industrial waste to obtain individual wastewater discharge permits. The Superintendent also may prohibit the disposal of hauled industrial waste. The discharge of hauled industrial waste is subject to all other requirements of this chapter.
(2) Industrial waste haulers may discharge loads only at the POTW main lift during the hours of 7:00 a.m. and 3:00 p.m. Monday - Friday. No load may be discharged without prior consent of the Superintendent. The Superintendent may collect samples of each hauled load to ensure compliance with applicable standards. The Superintendent may require the industrial waste generator to provide a waste analysis of any load prior to discharge.
(3) Hauled waste will only be accepted from permitted nonresidential users regulated under the city's pretreatment program.
(Ord. passed - -91; Am. Ord. 98-5, passed 5-4-98; Am. Ord. 2012-02, passed 2-20-12) Penalty, see § 61.999