(A)   Except as hereinafter provided, no persons shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer:
      (1)   Any liquid or vapor having a temperature higher than 150 F.;
      (2)   Any water or waste which may contain more than 100 parts per million, by weight, of fat, oil, or grease;
      (3)   Any water or waste which may contain more than 25 parts per million, by weight, or soluble oil;
      (4)   Any gasoline, benzine, naptha, fuel oil, or other flammable or explosive liquid, solid or gas;
      (5)   Any garbage that has not been properly shredded;
      (6)   Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure, or any other solid or viscous substance, capable of obstruction to the flow in sewers or other interference with the proper operation of the sewage works;
      (7)   Any waters or wastes having a pH lower than 5.0 or higher than 9.0, or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewage works;
      (8)   Any water from waste containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the sewage treatment plant; and
      (9)   Any waters or waste containing suspended solids of such character and quantity that unusual attention or expense is required to handle such materials at the sewage disposal plant.
   (D)   (1)   Grease, oil, and sand interceptors shall be provided when in the opinion of the Inspector, they are necessary for the proper handling of liquid waste containing grease in excessive amount, or any flammable wastes, sand, and 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 Inspector and shall be located as to be readily and easily accessible for cleaning and inspection.
      (2)   Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, water tight, and equipped with easily accessible covers for cleaning and inspection.
   (E)   Where installed, all grease, oil and sand interceptors shall be maintained by the owner, at his or her expense, in continuously efficient operation at all times.
   (F)   The admission into the public sewers of any waters or wastes having a five-day BOD greater than 400 parts per million by weight, or containing more than 450 parts per million by weight of suspended solids, or containing any quantity of substances having the characteristics described in § 51.25(C), or having an average daily flow greater than 2% of the average daily sewage flow of the town, shall be subject to the review and approval of the Inspector. Where necessary in the opinion of the Inspector, the owner shall provide at his or her expense the preliminary treatment as may be necessary to reduce the BOD to 400 parts per million and the suspended solids to 450 parts per million by weight, or reduce objectionable characteristics or constituents to within the maximum limits provided for in § 51.25(C), or 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 Inspector and of the Indiana State Board of Health, and no construction of such facilities shall be commenced until the approval is obtained in writing.
   (G)   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 or her expense.
   (H)   When required by the Inspector, 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. The manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by the Inspector. The manhole shall be installed by the owner at his or her expense, and shall be maintained by him or her so as to be safe and accessible at all times.
   (I)   All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in § 51.25(C) and (F) shall be determined in accordance with Standard Methods for the Examination of Water and Sewage and shall be determined at the control manhole provided for in § 51.25(H) or upon suitable samples taken at the manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected.
   (J)   No statement contained in this subchapter shall be construed as preventing any special agreement or arrangement between the town and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the town for treatment, subject to payment therefor by the industrial concern.
(Ord. 2010-6, passed 8-9-10)