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/1 utilized in the biochemical oxidation of organic matter under standard laboratory procedures with nitrification inhibition in five days at 20°C.
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.
(1) BUILDING DRAIN, SANITARY. A building drain which conveys sanitary or industrial sewage only.
(2) BUILDING DRAIN, STORM. A building drain which conveys storm water or other clearwater 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).
(1) BUILDING SEWER, SANITARY. A building sewer which conveys sanitary or industrial sewage only.
(2) BUILDING SEWER, STORM. A building sewer which conveys stormwater or other clearwater drainage, but no sanitary or industrial sewage.
COMBINED SEWER. A sewer which carries both storm, surface, groundwater runoff, and wastewater.
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 such pollutants, and in fact does remove such 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; and
(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).
COUNCIL. The Town Council of the Town of Paoli, Indiana, or any duly authorized officials acting in its behalf.
DEBT SERVICE COSTS. The average annual principal and interest payments on all outstanding revenue bonds or other long-term capital debt.
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 will separate by gravity from wastewater by treatment in a pretreatment facility approved by the town.
GARBAGE. Solid wastes from the domestic and commercial preparation, cooking, and dispensing of food, and from the handling, storage and sale of produce.
INCOMPATIBLE POLLUTANT. Any pollutant that is not defined as a compatible pollutant, including non-biodegradable dissolved solids.
INDUSTRIAL WASTES. 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 sewer service connections, from the ground, through such means as, but not limited to, defective pipes, pipe joints, connections, or manhole walls.
INFILTRATION/INFLOW. The total quantity of water from both infiltration and inflow without distinguishing the source.
INFLOW. The water discharged into a sewer system, including service connections from such 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, catch basins, storm waters, 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.
MAJOR CONTRIBUTING INDUSTRY. An industry that:
(1) Has a flow of 50,000 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 Pub. L. 92-500, § 307(a), being 33 USC 1317(a); or
(4) Has a significant impact, either singly or in combination with other contributing industries, on a treatment works or on the quality of effluent from that treatment works.
MAY. This term is permissive.
NH3N. The same as ammonia nitrogen measured as nitrogen. The laboratory determinations shall be made in accordance with procedures set forth in “Standard Methods” as defined in this section.
NPDES PERMIT. A permit issued under the National Pollutant Discharge Elimination System for discharge of wastewaters to the navigable waters of the United States pursuant to Pub. L. 92-500, § 402, being 33 USC 1345.
NATURAL OUTLET. Any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake, or other body of surface or groundwater.
NORMAL DOMESTIC SEWAGE. For the purpose of determining surcharges, shall mean wastewater or sewage having an average daily concentration as follows: BOD not more than 200 mg/l.; S.S. not more than 200 mg/l. As defined by origin, wastewaters from segregated domestic or sanitary conveniences are distinct from wastes from industrial processes.
OPERATION AND MAINTENANCE COSTS. Includes 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 charges and excessive strength surcharges.
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.
PERSON. Any and all persons, natural or artificial, including any individual, firm, company, municipal or private corporation, association, society, institution, enterprise, governmental agency, or other entity.
PHOSPHORUS or P. The chemical element phosphorus.
PRETREATMENT. The treatment of industrial sewage from privately owned industrial sources prior to introduction into a public treatment works.
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 in which all owners of abutting property have equal rights and which is controlled by public authority.
REPLACEMENT COSTS. The 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 such works were designed and constructed.
SANITARY SEWER. A sewer which carries wastewater and to which storm, surface, groundwaters and unpolluted industrial wastewater 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:
(1) SANITARY SEWAGE. The combination of liquid and water carried wastes discharged from toilet and other sanitary plumbing facilities.
(2) 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 shall include the wastes from pretreatment facilities and polluted cooling water).
(3) COMBINED SEWAGE. Wastes including sanitary sewage, industrial sewage, stormwater, infiltration and inflow carried to the wastewater treatment facilities by a combined sewer.
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 laid for carrying wastewater and other liquids.
SEWER USE ORDINANCE. That portion of this chapter which regulates the connection to and use of public and private sewers.
SHALL. This term is mandatory.
SLUG. Any discharge of water or wastewater which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than ten minutes more than three times the average 24 hours concentration of 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 which carries storm, surface, and groundwater drainage but excludes wastewater.
SUPERINTENDENT. The Superintendent of the municipal sewage works of the town, 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 under standard laboratory procedure.
TOTAL SOLIDS. The sum of suspended and dissolved solids.
TOWN. The Town of Paoli, Indiana, acting by and through the Town Council.
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 Pub. L. 92-500, § 307(a), being 33 USC 1317(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 such works pursuant to 33 USC 1284(b).
USER CLASS. The division of wastewater treatment customers by source, function, waste characteristics, and process or discharge similarities (i.e., residential, commercial, industrial, institutional, and governmental in the user charge system).
(1) 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.
(2) 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.
(3) INSTITUTIONAL USER. Any establishment involved in a social, charitable, religious or educational function which, based on a determination by the town, discharges primarily segregated domestic wastes or wastes from sanitary conveniences.
(4) GOVERNMENTAL USER. Any federal, state, or local governmental user of the wastewater treatment works.
(5) INDUSTRIAL USER. Any manufacturing or processing facility that discharges industrial waste to a publicly owned treatment works.
VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated to 55°C for 15 to 20 minutes.
WATERCOURSE. A natural or artificial channel for the passage of water either continuously or intermittently.
(Ord. 1986-2, passed 5-12-86; Am. Ord. 1986-3, passed 5-12-86; Am. Ord. 1994-1, passed 2-10-94; Am. Ord. 2014-03, passed 3-18-14)