For the purpose of this chapter the following definitions shall apply unless the context clearly indicates or requires a different meaning. Any terms not defined herein, but defined in the water rate ordinance (see Chapter 52) shall have the same meaning herein.
AMMONIA (or NH3-N). Ammonia Nitrogen measured as Nitrogen. The laboratory determinations shall be made in accordance with procedures set forth in Standard Methods as defined below in this section.
BIOCHEMICAL OXYGEN DEMAND (or BOD). Of sewage, sewage effluent, polluted waters or industrial wastes shall mean the quantity of dissolved oxygen in milligrams per liter required during stabilization of the decomposable organic matter by aerobic biochemical action under standard laboratory procedures for five days at 20° C. The laboratory determinations shall be made in accordance with procedures set forth in Standard Methods.
BOARD. The Board of Works of the city, or any duly authorized officials or boards acting in its behalf.
BUILDING (or HOUSE) DRAIN. The lowest horizontal piping of building drainage system which receives the discharge from waste, and other drainage pipes inside the walls of the building and convey it to a point approximately five feet outside the foundation wall of the building.
(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 clean water drainage, but no wastewater.
BUILDING (or HOUSE) LATERAL SEWER. The extension from the building drain to the sewerage system or other place of disposal.
BUILDING SEWER- SANITARY. A building sewer which conveys sanitary or industrial sewage only.
BUILDING SEWER - STORM. A building sewer which conveys storm water or other clear water drainage, but no sanitary or industrial sewage.
CITY. Board of Works, agent or a duly appointed designee of the city.
COMBINED SEWER. A sewer intended to receive both wastewater and storm or surface water.
COMPATIBLE POLLUTANT. Biochemical oxygen demand, suspended solids, pH, and fecal coliform bacteria, plus additional pollutants identified in the NPDES Permit if the treatment works were 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).
DISCHARGE. To emit a substance into the sanitary sewer.
DISCHARGER (or CONTRIBUTOR). Any person discharging into the public sewer system.
EASEMENT. An acquired legal right for the specific use of land owned by others.
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 Board of Works.
GARBAGE. Any solid wastes from the preparation, cooking or dispensing of food and from handling, storage or sale of produce.
INCOMPATIBLE POLLUTANT. Any pollutant that is not defined as a compatible pollutant, including non-biodegradable dissolved solids, and further defined in Regulation 40 C.F.R. pt. 403.
INDUSTRIAL WASTES. Any solid, liquid or gaseous substance or form of energy discharged, permitted to flow or escape from an industrial, manufacturing, commercial or business process, or from the development, recovery or processing of any natural resource carried on by a person and shall further mean any waste from an industrial sewer.
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. (Infiltration does not include and is distinguished from inflow.)
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 building drains and sewers, from such sources as, but not limited to, roof leader, cellar, yard and area drains, foundations drains, unpolluted 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 distinguishable from infiltration.)
INSPECTOR.
(1) The person or persons duly authorized by the city through its Board of Public Works and Safety to inspect and approve the installation of building sewers and their connection to the public sewer system.
(2) The Board of Works hereby designates the Utility Superintendent or his or her designated representative to inspect and approve the installation of any water or sanitary sewage improvements and their connection to the public sewer system.
MAY. is permissive.
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. The same meaning as defined in the Sewage Rate Ordinance.
NPDES PERMIT. National Pollutant Discharge Elimination System permit setting forth conditions for the discharge of any pollutant or combination of pollutants to the navigable waters of the United States pursuant to Section 402 of PL 95-217, being 33 U.S.C. 1342.
PERSON. Any and all persons, natural or artificial, including any individuals, firm, company, municipal or private corporation, partnership, co-partnership, joint stock company, trust, estate, association, society, institution, enterprise, governmental agency, the State of Indiana, the United States of America, or other legal entity, or their legal representatives, agents, or assigns. The masculine gender shall include the feminine and the singular shall include the plural where indicated by the context.
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.
PHOSPHORUS (or P). The chemical element phosphorus, total. The laboratory determinations shall be made in accordance with procedures set forth in Standard Methods as defined below.
PRETREATMENT. The reduction of the amount of pollutants, the elimination of pollutants, or the alteration of the nature of pollutant properties in wastewater to a less harmful state prior to or in lieu of discharging or otherwise introducing such pollutants into the POTW. The reduction or alteration can be obtained by physical, chemical or biological
processes, process changes or by other means, except as prohibited by 40 C.F.R. pt. 403.6b(d); and shall include all applicable rules and regulations contained in the code of Federal Regulations as published in the Federal Register, under Pub. L. No. 95-217, § 307, being 33 U.S.C. 1317(a) under regulation 40 C.F.R. pt. 403 pursuant to the Act, and amendments.
PRIVATE SEWER. A sewer which is not owned by 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 and will consist of the following increments:
(1) COLLECTOR SEWER. A sewer whose primary purpose is to collect wastewaters from individual point source discharges.
(2) INTERCEPTOR SEWER. A trunk line that carries effluent to intersecting lines and carries effluent to the sewer plant.
(3) PUMPING STATION. A station positioned in the public sewer system at which wastewater is pumped to a higher level.
(4) STORM SEWER. A sewer whose primary purpose it to collect storm, surface or ground water.
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 watercarried wastes from residences, commercial buildings, industrial plants and institutions (including polluted cooling water and processed water). The five most common types of sewage are:
(1) COMBINED SEWAGE. Wastes including sanitary sewage, industrial sewage, storm water, infiltration and inflow carried to the wastewater treatment facilities by a combined sewer.
(2) DOMESTIC SEWAGE. Wastes discharged from a residence.
(3) 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 processed water).
(4) SANITARY SEWAGE. The combination of liquid and water carried wastes discharged from toilet, water softeners or other equipment, and other sanitary pumping facilities.
(5) STORM SEWAGE. Storm, surface or ground water.
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.
SHALL. Is mandatory.
SLUG LOAD. 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 five minutes more than five times the average 24-hour concentration of flow during normal operation and which adversely affects the sewage works.
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 or UTILITY SUPERINTENDENT. The Superintendent of the municipal sewage works of the city or his or her authorized deputy, agent or representative.
SUSPENDED SOLIDS. Solids which either float on the surface of or are in suspension in water, sewage or other liquid and which are removable by laboratory filtration. Their concentration shall be expressed in milligrams per liter. Quantitative determination shall be made in accordance with procedures set forth in Standard Methods.
TOTAL SOLIDS. The sum of suspended, dissolved solids and volatile organic matter.
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 the Clean Water Act , being 33 U.S.C. 1342.
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 provide.
VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated to 500° C. for 15 to 20 minutes.
(Ord. 1992- , passed - -1992; Am. Ord. 2005-22, passed 11-15-2005; Am. Ord. 2023-4, passed 5-2-2023)