(A)   General prohibitions.
      (1)   No user shall introduce or cause to be introduced into the sewerage system any pollutant or wastewater which causes pass through, interference or unsafe conditions for town employees or citizens.
      (2)   Unpolluted water from air conditioners, cooling, condensing systems or swimming pools, shall be discharged to a storm sewer or a natural outlet approved by the town and by the State of Indiana. Where a storm sewer or natural sewer is not available, such unpolluted water may be discharged to a sanitary sewer or combined sewer pending written approval by the town.
      (3)   Illicit connections are not allowed to the sanitary sewerage system per § 51.107.
      (4)   Unpolluted water, including, but not limited to distributed water, cooling water, process water or blowdown from cooling towers or evaporative coolers, shall not be discharged through direct or indirect connection to the sewerage system for purposes of diluting wastewater to reduce sewer rates or charges of the user. Limitations on the amount of unpolluted water that is discharged shall be part of the wastewater discharge approval process.
   (B)   Specific prohibitions. A user of the sewerage system, whether the user is subject to pretreatment standards or requirements, shall not allow the introduction of the following into the sewerage system:
      (1)   Pollutants which create a fire or explosion hazard in the sewerage system, including waste streams with a closed cup flashpoint of less than 140 degrees Fahrenheit (60 degrees Celsius) using the test methods in 40 CFR 261.21, including, but not limited to, 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 5.5, greater than 9.0, or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the sewerage system.
      (3)   A solid or viscous substance in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the sewerage system such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, metal shavings, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, disposable wipes, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, and the like, either whole or ground by garbage grinders.
      (4)   Any pollutant, including oxygen demand pollutants (CBOD5) released in a discharge at a flow rate and/or pollutant concentration which will cause interference at the POTW.
      (5)   Heat in amounts which will inhibit biological activity in the POTW resulting in interference, but in no case heat in such quantities that the temperature at the POTW exceeds 104 degrees Fahrenheit (40 degrees Celsius) unless alternate temperature limits are approved by the town.
      (6)   Any water or waste containing petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, fats, wax, grease, or oils whether emulsified or not.
      (7)   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 POTW.
      (8)   Any trucked or hauled pollutants, except at discharge points designated by the POTW.
      (9)   Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourth horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the town.
      (10)   Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not.
      (11)   Any waters or wastes containing phenols or other taste, or odor producing substances, in such concentrations exceeding limits which may be established by the town as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal, or other public agencies of jurisdiction for such discharge to the receiving waters.
      (12)   Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the town in compliance with applicable state or federal regulations.
      (13)   Unusual concentrations of inert suspended solids (such as, but not limited to, Fullers earth, lime slurries, and lime residue) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate).
      (14)   Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions).
      (15)   Unusual CBOD5, chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the POTW.
      (16)   Unusual volume of flow or concentration of wastes constituting "slug" as defined herein.
      (17)   Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes, 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.
(Ord. 19-01, passed 4-9-19)