§ 51.03 DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   B.O.D. (BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in 5 days at 20C, expressed in milligrams per liter.
   BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal.
   COMBINED SEWER. A sewer receiving both surface runoff and sewage.
   COMMERCIAL USER. Any non-governmental, non-residential or non-institutional user of the town’s sewage works, which discharges less than the equivalent of 2,500 gallons per day of sanitary wastes.
   COMPATIBLE POLLUTANT. Biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, plus additional pollutants identified in the NPDES permit if the publicly owned treatment works was designed to treat these pollutants and in fact, does remove these pollutants to a substantial degree. The term substantial degree is not subject to precise definition but generally contemplates removals in the order of 80% or greater. Minor incidental removals in the order of 10% to 30% are not considered substantial. Examples of additional pollutants may include: chemical oxygen demand; total organic carbon; phosphorus and phosphorus compounds; nitrogen and nitrogen compounds; fats, oils and greases of animal or vegetable origin except as prohibited under § 128.131(c) of the Rules and Regulations of the U.S. Environmental Protection Agency, pretreatment standards.
   GARBAGE. Solid wastes from the domestic and commercial preparation, cooking and dispensing of food and from the handling, storage and sale of produce.
   GOVERNMENTAL USER. Any non-commercial and non-industrial user of the town’s sewage works owned or operated by the town.
   INCOMPATIBLE POLLUTANT. Any pollutant which is not a compatible pollutant as herein defined.
   INDUSTRIAL USER.
      (1)   Any non-governmental, non-residential user of the town’s sewage works which discharges more than the equivalent of 2,500 gallons per day of sanitary wastes and which is identified in a Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented under 1 of the following divisions:
         (a)   Division A - Agriculture, Forestry and Fishing;
         (b)   Division B - Mining;
         (c)   Division D - Manufacturing;
         (d)   Division E - Transportation, Communications, Electric, Gas and Sanitary Services; or
         (e)   Division I - Services; and
      (2)   Any non-governmental user of the town’s sewage works which discharges wastewater to the treatment works which contains toxic pollutants or poisonous solids, liquids or gases, in sufficient quantity, either singly or by interaction with other wastes, to contaminate the sludge of any municipal systems or to injure or interfere with any sewage treatment process or which constitutes a hazard to humans or animals, creates a public nuisance or creates hazards in or has an adverse effect on the waters receiving any discharge from the treatment works.
   INDUSTRIAL WASTES.  The liquid wastes from industrial manufacturing processes, trade or business as distinct from sanitary sewage.
   INSPECTOR. The person or persons duly authorized by the town, through its Town Council, to inspect and approve the installation of building sewers and their connection to the public sewer system.
   INSTITUTIONAL USER. Any non-governmental user of the town’s sewage works, which is engaged principally in providing services relating to health care or education.
   LOCAL CAPITAL COSTS (LCC). The expenditures by the town or its sewage utility for purchase of land, buildings or components thereof, equipment and other capital items, the source of which expenditures are tax dollars or utility revenues.
   MAJOR CONTRIBUTING INDUSTRY. Any industrial user of the sewerage works that:
      (1)   Has a flow of 5,000 gallons or more per average work day;
      (2)   Has a flow greater than 5% of the flow carried by the municipal system receiving the waste;
      (3)   Has in its waste, a toxic pollutant in toxic amounts as defined in standards issued under § 307(a) of the Water Pollution Control Act as amended; or
      (4)   Is found by the permit issuance authority, in connection with the issuance of an NPDES permit to the publicly owned treatment works receiving the wastes, to have a significant impact, either singly or in combination with other contributing industries, on the treatment works or upon the quality of affluent from the treatment works.
   MAY. The act referred to is permissive.
   NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of surface or groundwater.
   NORMAL DOMESTIC SEWERAGE. Wastes as are normally discharged from individual residences and other housing units. NORMAL DOMESTIC SEWERAGE shall not include any waste containing a loading in excess of 200 milligrams per liter (mg/l) B.O.D. and 250 mg/l suspended solids.
   NPDES PERMIT. Any permit or other document issued under the authority of and pursuant to the National Pollutant Discharge Elimination System, being the Federal Water Pollution Control Act as now or hereafter amended.
   OPERATION AND MAINTENANCE. The expenses of the sewage utility exclusive of capital costs.
   PERSON. Any individual, firm, company, association, society, corporation or group.
   pH. The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
   PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that has been shredded to a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than 1/2-inch in any dimension.
   PUBLIC SEWER. A sewer in which all owners of abutting properties have equal rights and is controlled by public authority.
   REPLACEMENT COSTS. Expenditures for obtaining and installing equipment, accessories or appurtenances which are necessary during the service life of the treatment works, to maintain the capacity and performance for which the works was designed and constructed.
   RESIDENTIAL USER. A customer discharging waste from a building or structure primarily used for the purpose of human habitation and principally discharging normal domestic sewage.
   SANITARY BUILDING DRAIN. The part of the lowest horizontal piping of the sanitary drainage system inside the walls of any building, which receives the discharge from soil or waste stacks and branches and conveys the same to a point 3 feet outside the building walls where it connects with its respective building sewer.
   SANITARY SEWER. A sewer which carries sewage and to which storm, surface and groundwaters are not intentionally admitted.
   SEWAGE. A combination of the water-carried wastes from residences, business buildings, institutions and industrial establishments, together with such ground, surface and storm waters as may be present.
   SEWAGE TREATMENT PLANT. Any arrangement of devices and structures used for treating sewage.
   SEWAGE WORKS. All facilities for collecting, pumping, treating and disposing of sewage.
   SEWER. A pipe or conduit for carrying sewage.
   SHALL. The act referred to is mandatory.
   SLUG. Any discharge of water, sewage or industrial waste which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than 15 minutes more than 5 times the average 24-hour concentration or flows during normal operation.
   STORM DRAIN or STORM SEWER. A sewer which carries storm and surface waters and drainage but excludes sewage and industrial wastes, other than unpolluted cooling water.
   SUPERINTENDENT.  The Superintendent of the municipal sewage works of the Town of Linden, Indiana or his or her authorized deputy, agent or representative.
   SUSPENDED SOLIDS. Solids that either float on the surface of or are in suspension in water, sewage or other liquids and which are removable by laboratory filtering.
   TAP-ON FEE. The charge made by the sewage utility to the customer for the privilege of connecting a building or house lateral sewer to the sewage system, designed to compensate the sewage utility for inspection costs and some portion of local capital costs.
   USER CLASSES. The division of wastewater treatment customers by waste characteristics and process or discharge similarities. There may be as many as 5 classes of users; i.e., domestic, commercial, industrial, institutional and governmental.
   WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(1982 Code, § 14-3)