§ 50.55  DEFINITIONS.
   For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   BOD (BIOCHEMICAL OXYGEN DEMAND).  The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory conditions for five days at a temperature of 20°C. reported in mg/l, as described in the Fourteenth Edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.
   COD (CHEMICAL OXYGEN DEMAND).  The quantity of oxygen consumed from a chemical oxidation of inorganic and organic matter present in the water or wastewater, expressed in mg/l, as described in the Fourteenth Edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.
   DOMESTIC WASTE.  A typical, residential- type waste which requires no pre-treatment under the provisions of this subchapter before discharging into the sanitary sewer system, excluding all commercial, manufacturing, and industrial waste.
   ESTABLISHMENT or PLANT.  Any establishment or plant producing liquid waste, with or without bearing suspended solids, required to be discharged into the town sewer system.
   GENERAL MANAGER.  The person authorized by the town to administer the sewer system, or his authorized representative.
   INDUSTRIAL WASTE USER.  Industries identified in the Standard Industrial Classification Manual, Bureau of the Budget 1972, Office of Management and Budget, as amended and supplemented, this being an official U.S. Governmental publication and having its force of law under the following divisions:
      (1)   Division A - Agriculture, Forestry and Fishing.
      (2)   Division B - Mining.
      (3)   Division D - Manufacturing.
      (4)   Division E - Transportation, Communications, Electric, Gas, and Sanitary Services.
   INDUSTRIAL WASTE.  Any liquid, free- flowing waste, including cooling water, resulting from any industrial or manufacturing process or from the development, recovery, or processing of natural resources, with or without suspended solids.
   MILLIGRAMS PER LITER (MG/L).  The same as parts per million (ppm) and is a weight-to- volume ratio; when the milligram per-liter value is multiplied by the factor 8.34, an equivalent to pounds per million gallons of water is obtained.
   PERMIT.  A written authorization granted by the General Manager to an industrial customer for that customer to discharge sewage into the sewer system and describing in detail the terms and limits of service.
   pH VALUE.  The logarithm of the reciprocal of the hydrogen ion concentration in grams per liter; i.e., ph=      1     
                                          
        log (H+)
pH will be determined according to the Fourteenth Edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.
   PRODUCER.  Any person, firm, association, corporation, or trust which owns, operates, possesses, or controls an establishment or plant that is classified as an industrial waste user.
   SANITARY SEWER SYSTEM or SEWERS or PUBLIC SEWERS or SEWAGE WORKS or SEWER SYSTEM.  All facilities for collecting, conveying, pumping, treating, and disposing of sanitary sewage and industrial wastes. For the purpose of this subchapter, however, waterways shall not be included in this definition.
   SEWER STAFF.  The group of employees engaged by the town to administer, operate and maintain the town's sanitary sewer system under the supervision of the General Manager.
   SIGNIFICANT INDUSTRIAL WATER USER.  An industrial waste user that contributes greater than 10% of the design flow or design pollutant loading of the sewer system.
   STANDARD METHODS.  The Fourteenth Edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.
   TOTAL SUSPENDED SOLIDS (TSS).  Solids measured in mg/l that either float on the surface or are in suspension in water, wastewater, or other liquids, and which are largely removable by a laboratory filtration device, as defined in the Fourteenth Edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.
   USER CHARGE.  Charges established under this subchapter for discharging wastes into the sanitary sewer system.
(Ord., passed 3-8-82)