For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen, expressed in mg/l, utilized in the biochemical oxidation of organic matter under standard laboratory procedures in five days at 20 degrees Celsius.
BUILDING DRAIN. That part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of a building and conveys it to the building sewer beginning three feet outside the building wall.
BUILDING DRAIN, SANITARY. A building drain which conveys sanitary or industrial sewage only.
BUILDING DRAIN, STORM. A building drain which conveys stormwater or other, clear water drainage, but no wastewater.
BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal. Also called HOUSE CONNECTION.
BUILDING SEWER, SANITARY. A building sewer which conveys sanitary or industrial sewage only.
BUILDING SEWER, STORM. A building sewer which conveys stormwater or other clearwater drainage, but no sanitary or industrial sewage.
COLLECTOR SEWER. A sewer whose primary purpose is to collect wastewater from individual point source discharges.
COMBINED SEWAGE. Wastes including sanitary sewage, industrial sewage, stormwater, infiltration and inflow carried to the wastewater treatment facilities by a combined sewer.
COMBINED SEWER. A sewer intended to receive both wastewater and storm or surface water.
COMMERCIAL USER. Any establishment involved in a commercial enterprise, business or service, which, based on a determination by the town, discharges primarily segregated domestic wastes or wastes from sanitary conveniences.
COMPATIBLE POLLUTANT. Biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, plus additional pollutants identified in the NPDES permit if the treatment works was designed to treat those pollutants, and in fact does remove those 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 the additional pollutants which may be considered compatible include:
(1) Chemical oxygen demand.
(2) Total organic carbon.
(3) Phosphorus and phosphorus compounds.
(4) Nitrogen and nitrogen compounds.
(5) Fats, oils and greases of animal or vegetable origin (except as prohibited, where these materials would interfere with the operation of the treatment works).
CONTROL AUTHORITY (CA). The commissioner of the Indiana Department of Environmental Management.
DEBT SERVICE COSTS. The average annual principal and interest payments on all outstanding revenue bonds or other long-term capital debt.
DWELLING UNIT. A room or rooms, or any other spaces in which cooking facilities are provided.
EASEMENT. An acquired legal right for the specific use of land owned by others.
EXCESSIVE STRENGTH SURCHARGE. An additional charge which is billed to users for treating sewage wastes with an average strength in excess of normal domestic sewage.
FECAL COLIFORM. Any of a number of organisms common to the intestinal tract of man and animals, whose presence in sanitary sewage is an indicator of pollution.
FLOATABLE OIL. Oil, fat or grease in a physical state such that it will separate by gravity from wastewater by treatment in a pretreatment facility approved by the town.
FORCE MAIN. A pipe in which wastewater is carried under pressure.
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 federal, state or local governmental user of the waste water treatment works.
INCOMPATIBLE POLLUTANT. Any pollutant which is not defined as a compatible pollutant, including non-biodegradable dissolved solids.
INDIRECT DISCHARGER. Any nondomestic discharger introducing pollutants into a publicly owned treatment works, regardless of whether the discharger is within the governmental jurisdiction of the town.
INDUSTRIAL SEWAGE. A combination of liquid and water-carried wastes discharged from any industrial establishment and resulting from any trade, or process carried on in that establishment (this includes the wastes from pretreatment facilities and polluted cooling water).
INDUSTRIAL USER. Any manufacturing or processing facility that discharges industrial waste, or any indirect discharger, to a publicly owned treatment works.
INDUSTRIAL WASTES.
(1) The liquid wastes from industrial manufacturing processes, trade or business, as distinct from sanitary sewage.
(2) The wastewater discharges from industrial, trade or business processes, as distinct from employee wastes or wastes from sanitary conveniences.
INFILTRATION. The water entering a sewer system, including building drains and sewers, from the ground, through such means as, but not limited to, defective pipes, pipe joints, connections or manhole walls. The term does not include and is distinguished from inflow.
INFILTRATION AND INFLOW. The total quantity of water from both infiltration and inflow without distinguishing the source.
INFLOW. The water discharge into a sewer system, including building drains and sewers, from such sources as, but not limited to, roof leaders, cellar, yard and area drains, foundation drains, unpolluted cooling water discharges, drains from springs and swampy areas, manhole covers, catch basins, storm water, surface runoff, street wash waters or drainage. INFLOW does not include, and is distinguished from, infiltration.
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 establishment in a social, charitable, religious and/or educational function which, based on a determination by the town, discharges primarily segregated domestic wastes or wastes from sanitary conveniences.
INTERCEPTOR SEWER. A sewer whose primary purpose is to transport wastewater from collector sewers to a treatment facility.
INTERFERENCE. A discharge that, alone or in conjunction with a discharge or discharges from other sources, does one of the following:
(1) Inhibits or disrupts the publicly owned treatment works, its treatment processes or operations, its sludge processes, or its selected sludge use or disposal methods;
(2) Causes a violation of any requirement of the town’s NPDES permit, including an increase in the magnitude or duration of a violation;
(3) Prevents the use of the publicly owned treatment work’s sewage sludge or its sludge disposal method selected in compliance with the following statutory provisions, regulations, or permits issued thereunder or more stringent state or local regulations:
(a) Section 405 of the Clean Water Act (33 U.S.C. 1345).
(b) The Solid Waste Disposal Act (SWDA) (42 U.S.C. 6901), including:
A. Title II, more commonly referred to as the Resource Conservation and Recovery Act(RCRA);and
B. The rules contained within any state sludge management plan prepared pursuant to Subtitle D of the SWDA (42 U.S.C. 6941).
(c) The Clean Air Act (42 U.S.C. 7401).
(d) The Toxic Substances Control Act (15 U.S.C. 2601).
NATURAL OUTLET. Any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface or ground water.
NORMAL DOMESTIC SEWAGE. For the purposes of determining surcharges, the term means:
(1) Wastewateror sewage having an average daily concentration of not more than 200 mg/IBOD and not more than 240 mg/l suspended solids; or
(2) As defined by origin, wastewater from segregated domestic and/or sanitary conveniences as distinct from wastes from industrial processes.
NPDES PERMIT. A permit issued under the National Pollutant Discharge Elimination System for discharge of wastewater to the navigable waters of the United States, pursuant to PL 92-500, § 402.
OPERATION AND MAINTENANCE COSTS. All costs, direct and indirect, necessary to provide adequate wastewater collection, transport and treatment on a continuing basis and produce discharges to receiving waters that conform with all related federal, state and local requirements. These costs include replacement.
OTHER SERVICE CHARGES. Tap charges, connection charges, area charges and other identifiable charges other than user charges, debt service charge and excessive strength surcharges.
PASS-THROUGH. A discharge proceeding through a publicly owned treatment works into waters of the state in quantities or concentrations that, alone or in conjunction with a discharge or discharges from other sources, are a cause of a violation of any requirement of the town’s NPDES permit, including an increase in the magnitude or duration of a violation.
pH. The reciprocal of the logarithm of the hydrogen ion concentration. The concentration is the weight of hydrogen ions in grams per liter of solution.
PRETREATMENT. The treatment of industrial sewage from privately owned industrial sources prior to introduction into a public treatment works.
PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment, other than a pretreatment standard, imposed on an industrial user, including applicable local limits.
PRETREATMENT STANDARDS. A state pretreatment standard as established in 327 IAC 5-18-8; a pretreatment standard for prohibited discharges, as established in 327 IAC 5-18-2; or a national categorical pretreatment standard incorporated by reference in 327 IAC 5-18-10.
PRIVATE SEWER. A sewer which is not owned by a public authority.
PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that has been shredded to such a 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 which is owned and controlled by the public authority, including collector and interceptor sewers, force mains and pumping stations.
PUBLICLY OWNED TREATMENT WORKS (POTW). A treatment works owned by the state or a municipality, except that it does not include pipes, sewers or other conveyances not connected to a facility providing treatment. The term includes any devices and systems used in the. storage, treatment, recycling and reclamation of municipal sewage or compatible industrial wastes. The term also includes sewers, pipes, and other conveyances only if they convey wastewater to a POTW treatment plant. POTW also means the municipality that has jurisdiction over the indirect discharges to and the discharges from such treatment works.
PUMPING STATION. A station positioned in the public sewer system at which wastewater is pumped to a higher level.
REPLACEMENT COSTS. The expenditures for obtaining and installing equipment, accessories or appurtenances which are necessary during the useful life of the sewage works equipment to maintain the capacity and performance for which those works were designed and constructed. REPLACEMENT COSTS, which are recovered through the system of user charges, shall be based upon the expected useful life of the sewage works equipment.
RESIDENTIAL USER. A user of the treatment works whose premises or building is used primarily as a residence for one or more persons, including all dwelling units and the like.
SANITARY SEWAGE. The combination of liquid and water-carried wastes discharged from toilet and other sanitary plumbing facilities.
SANITARY SEWER. A sewer which carries sanitary and industrial wastes and to which storm, surface and ground water are not intentionally admitted.
SEWAGE. The combination of the liquid- and water-carried wastes from residences, commercial buildings, industrial plants and institutions (including polluted cooling water). The three most common types of SEWAGE are sanitary sewage, industrial sewage, and combined sewage.
SEWAGE WORKS. The structures, equipment and processes to collect, transport, and treat domestic and industrial wastes and dispose of the effluent and accumulated residual solids.
SEWER. A pipe or conduit for carrying sewage.
SIGNIFICANT INDUSTRIAL USER. Any user that meets one or more of the following conditions:
(1) Industrial users subject to categorical pretreatment standards under 327 IAC 5-18-10.
(2) An industrial user that:
(a) Discharges an average of 25,000 gallons per day or more of process wastewater (excluding sanitary, noncontact cooling and boiler blow-down wastewater) to the publicly owned treatment works;
(b) Contributes a process waste stream that makes up 5% or more of the average dry weather hydraulic or organic capacity of the publicly owned treatment works treatment plant; or
(c) Is designated as a significant industrial user by the control authority on the basis that the industrial user has a reasonable potential to:
(1) Adversely affect the publicly owned treatment work’s operations;
(2) Violate a pretreatment standard; or
(3) Violate a requirement of 327 IAC 5-19-3.
(3) The control authority may, on its own initiative or in response to a petition received from an industrial user or a publicly owned treatment works and in accordance with 327 IAC 5-19-3(6), determine that an industrial user is not a significant industrial user if it does not meet Part III.A.9.b.(3) of the town’s NPDES permit.
SIGNIFICANT INDUSTRIAL USER definition division (2)(c) above.]
SLUG. Any discharge of water or wastewater which, in concentration of any given constituent or in quantity of flow excess for any period of duration longer than ten minutes more than three times the average 24-hour concentration or flows during normal operation and shall adversely affect the collection system.
STANDARD METHODS. The laboratory procedures set forth in the latest edition, at the time of analysis, of “Standard Methods for the Examination of Water and Wastewater” prepared and published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
STORM SEWER. A sewer for conveying water, ground water or unpolluted water from any source and to which sanitary and/or industrial wastes are not intentionally admitted.
SUPERINTENDENT. The Superintendent of the municipal sewage works of the town, or the Superintendent’s 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.
TOTAL SOLIDS. The sum of suspended and dissolved solids.
TOXIC AMOUNT. Concentrations of any pollutant or combination of pollutants, which upon exposure to or assimilation into any organism, will cause adverse effects such as cancer, genetic mutations and physiological manifestations, as defined in standards issued pursuant to PL 92-500 § 307(a).
UNPOLLUTED WATER. Water of quality equal to or better than the effluent criteria in effect, or water that would not cause violation of receiving water quality standards and would not be benefitted by discharge to the sanitary sewers and wastewater treatment facilities provided.
USER CHARGE. A charge levied on users of the wastewater treatment works for the cost of operation and maintenance of the works, pursuant to PL 92-500 § 204(b).
USER CLASS. The division of wastewater treatment customers by source, function, waste characteristics and process or discharge similarities. The various classes of users of the treatment works for the purposes of this chapter shall be as follows:
(1) Residential.
(2) Commercial.
(3) Governmental.
(4) Industrial.
(5) Institutional.
VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated at 550 degrees Celsius for 15 to 20 minutes.
WATERCOURSE. A natural or artificial channel for the passage of water either continuously or intermittently.
('85 Code, §§ 4-5-1 and 4-6-1) (Ord. 1983-8, passed 11-8-83; Am. Ord. 1983-7, passed 11-8-83; Am. Ord. 1985-C17, passed 9-16-85; Am. Ord. 2013-3-1, passed 3-28-13)