§ 51.090  DEFINITIONS.
   For the purpose of this subchapter, the following definitions apply unless the context clearly indicates or requires a different meaning.
   B.O.D. (denoting BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20ºC, as set out herein, expressed in milligrams per liter.
   C.O.D. (denoting CHEMICAL OXYGEN DEMAND). The quantity of equivalent oxygen utilized in the chemical oxidation of organic matter as measured by standard laboratory methods, as set out herein, expressed in milligrams per liter.
   COLOR. The “true color” due to substances in solution which cause any variation in the hue of the receiving stream and which is expressed in parts per million.
   COMPATIBLE POLLUTANT. B.O.D., suspended solids, pH and fecal coliform bacteria, and the additional pollutants as are now or may be in the future specified and controlled in the town’s NPDES permit for its waste water treatment works, where the works have been designed and used to reduce or remove the pollutants.
   COOLING WATER. The water discharged from any use such as air conditioning, cooling or refrigeration, during which the only pollutant added to the water is heat.
   DIRECTOR. The Director of Public Works of the town or his or her duly authorized representative.
   DOMESTIC WASTES. Liquid wastes from the noncommercial preparation, cooking and handling of food or containing human excrement and similar matter from the sanitary conveniences of dwellings, commercial buildings, industrial facilities and institutions.
   EXCESSIVE RADIATION DOSE. A dose of radiation in excess of the maximum permissible dose.
   GARBAGE. Solid waste from the domestic and commercial preparation, cooking and dispensing of food and from the handling, storage and sale of food.
   HEARING AUTHORITY. The Director of Public Works or his or her duly appointed deputies, agents or representatives.
   INCOMPATIBLE POLLUTANT. Any pollutant which is not a “compatible pollutant”, as defined in this chapter.
   INDUSTRIAL USER.
      (1)   Any nongovernmental, nonresidential user of a publicly owned treatment works which discharges more than the equivalent of 25,000 gallons per day (gpd) of sanitary wastes and which is identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented, under one of the following divisions:
         (a)   Division A: Agriculture, Forestry and Fishing;
         (b)   Division B: Mining;
         (c)   Division C: Manufacturing;
         (d)   Division E: Transportation, Communications, Electric, Gas and Sanitary Services; and
         (e)   Division I: Services.
      (2)   Any nongovernmental user of a publicly-owned treatment works which discharges waste water to the town’s sanitary sewers which contains toxic pollutants or poisonous solids, liquids or gases in sufficient quantity, either singly or by intersection with other wastes, to contaminate the sludge of the town’s systems or to injure or to interfere with any sewage treatment process, or which constitutes a hazard to humans or animals, creates a nuisance or creates any hazard in or has an adverse effect on the waters receiving any discharge from the town’s waste water treatment system.
      (3)   Any commercial user of an individual system constructed with grant assistance under § 201(h), subpart 35 of the Clean Water Act, being 33 U.S.C. § 1281.
   INDUSTRIAL WASTE WATER. The liquid wastes from industrial, manufacturing, trade or business establishments, as distinct from domestic wastes.
   INFILTRATION. The water entering a sewer system, including sewer service connections, from the ground, through the means such as, but not limited to, defective pipes, pipe joints, connections or manhole walls. INFILTRATION does not include, and is distinguishable from, “inflow”.
   INFLOW. The water discharged into a sewer system, including service connections from the sources as, but not limited to, roof leaders, cellar, yard and area drains, foundation drains, cooling water discharges, drains from springs and swampy areas, manhole covers, cross connections from storm sewers and combined sewers, catchbasins, storm waters, surface runoff, street washwaters or drainage. INFLOW does not include, and is distinguished from, “infiltration”.
   I.O.D. (denoting IMMEDIATE OXYGEN DEMAND). The quantity of oxygen utilized by an industrial waste in excess of that normally attributable to sewage, as measured by using standard laboratory methods, as set out herein, expressed in milligrams per liter.
   MAXIMUM PERMISSIBLE DOSE. A dose of radiation to any part of the body, internal or external, or both, that, in the light of present knowledge, is not expected to cause appreciable bodily injury to a person at any time during his or her lifetime.
   MUNICIPALITY. Any city, town, county, sanitary district, sewer district, association, other municipality or other public body created under state law or having jurisdiction over the disposal of domestic or industrial wastes.
   MUNICIPAL USER. Any municipality, as defined in this chapter, which desires to discharge domestic or industrial waste water into the sanitary sewers of the town or into sewers which ultimately discharge into the sanitary sewers of the town, for the purpose of waste water treatment and disposal.
   NH3 (denoting nitrogen as AMMONIA). The initial decomposition of nitrogenous organic matter as measured by using standard laboratory methods, as set out herein, expressed in milligrams per liter.
   NPDES (denoting NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM). The program for issuing, conditioning and denying permits for the discharge of pollutants from point sources into the navigable waters, the contiguous zone and the oceans pursuant to § 402 of the Clean Water Act, being 33 U.S.C. § 1342.
   PERSON. Any individual, firm, company, partnership, corporation, association, group or society, including the state and agencies, districts, commissions and political subdivisions created by or pursuant to state law.
   pH. The logarithm (base 10) of the reciprocal of the hydrogen ion concentration, which indicates the degree of acidity or alkalinity of a substance. A pH value of seven is neutral, above seven is alkaline and below seven is acid.
   PPM. Parts per million by weight, expressed in pounds.
   PRETREATMENT. Application of physical, chemical and biological processes to reduce the amount of pollutants in or to alter the nature of the pollutant properties of waste water prior to discharging the waste water into the publicly-owned waste water treatment system.
   PRETREATMENT STANDARDS. All applicable federal rules and regulations implementing § 307 of the Clean Water Act, being 33 U.S.C. § 1317, as well as any nonconflicting state or local standards. In cases of conflicting standards or regulations, the more stringent thereof shall be applied.
   PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that have been shredded to the degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch in any dimension.
   PUBLIC SEWER. A sewer in which all owners of abutting properties have equal rights, and which is controlled by the town.
     RECEIVING STREAM. The body of water, stream or watercourse receiving the discharge of waters from the waste treatment plant or formed by the water discharged from the waste treatment plant.
   SANITARY SEWER. A sewer intended to receive domestic sewage and industrial waste, except that of the type expressly prohibited by this subchapter, without admixture of surface and storm water.
   SEWAGE. A combination of the water-carried wastes from residences, business buildings, institutions and industrial and municipal establishments.
   SEWAGE WORKS. All facilities for monitoring, collecting, pumping, treating and disposing of sewage.
   SEWER. A pipe or conduit for carrying sewage.
   STORM SEWER OR STORM DRAIN. A sewer which carries storm or surface waters and drainage, but excludes sewage and industrial wastes.
   STORM WATER. Any water flow occurring during or immediately following any form of natural precipitation and resulting therefrom.
   SUSPENDED SOLIDS. The total suspended matter that floats on the surface of, or is suspended in, water, waste water or other liquids, and which is removable by laboratory filtering.
   TKN (denoting TOTAL KJELDAHL NITROGEN). The sum of the ammonia nitrogen and organic nitrogen as measured by using standard laboratory methods, as set out herein, expressed in milligrams per liter.
   UNPOLLUTED WATER. Water not containing any pollutants limited or prohibited by the effluent standards in effect, or water whose discharge will not cause any violation of receiving water quality standards.
   USER. Any person who discharges, or causes or permits the discharge of, waste water into the town’s waste water treatment system.
   USER CLASSIFICATION. A classification of users based on the Standard Industrial Classification (SIC) Manual prepared by the office of management and budget.
   WASTE WATER. The liquid- and water-carried domestic or industrial wastes from dwellings, commercial buildings, industrial facilities and institutions, whether treated or untreated, together with any ground water, surface water and storm water that may be present, which is discharged into or permitted to enter the town’s waste water treatment system.
   WASTE WATER TREATMENT SYSTEM. Any devices, facilities, structures, equipment or works owned or used by the town for the purpose of the transmission, storage, treatment, recycling and reclamation of industrial and domestic wastes, or necessary to recycle or reuse water at the most economical cost over the estimated life of the system, including intercepting sewers; outfall sewers; sewage collection systems; pumping, power and other equipment, and their appurtenances; extensions, improvements, remodeling, additions and alterations thereof; elements essential to provide a reliable recycled supply, as standby treatment units and clear well facilities; and the waste water treatment plant site or land which is used for ultimate disposal of residues resulting from the treatment.
(Prior Code, § 15-37)  (Ord. passed 10-7-1985)