Unless the context specifically indicates otherwise, the meanings of terms used in this chapter shall be as set forth in this section.
ADMINISTRATOR: The administrator of the U.S. environmental protection agency.
APPROVING AUTHORITY: The mayor and council of the city.
BOD (BIOCHEMICAL OXYGEN DEMAND): The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five (5) days at twenty degrees centigrade (20°C), expressed in milligrams per liter.
BASIC USER CHARGE: The basic assessment levied on all users of the public sewer system.
BUILDING DRAIN: That part of the lowest piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer or other approved point of discharge, beginning five feet (5') (1.5 meters) outside the inner face of the building wall.
BUILDING SEWER: The extension from the building drain to the public sewer or other place of disposal.
COMBINED SEWER: A sewer which is designed and intended to receive wastewater and stormwater, surface water and groundwater drainage.
CONTROL MANHOLE: A structure located on a site from which industrial wastes are discharged. Where feasible, the manhole shall have an interior drop. The purpose of a "control manhole" is to provide access for the city representative to sample and/or measure discharges.
DEBT SERVICE CHARGE: The amount to be paid each billing period for payment of interest, principal and coverage of (loan, bond, etc.) outstanding and shall be computed by dividing the annual debt service by the number of users connected to the wastewater facilities.
DIRECTOR: The director of the Illinois environmental protection agency.
EASEMENT: An acquired legal right for the specific use of land owned by others.
EFFLUENT CRITERIA: Are defined in any applicable NPDES permit.
FEDERAL ACT: The federal water pollution control act (33 USC 1251 et seq.), as amended by the federal water pollution control act of amendments of 1972 (public laws 92-500 and 93-243).
FEDERAL GRANT: The U.S. government participation in the financing of the construction of treatment works as provided by title II, "Grants For Construction Of Treatment Works", of the act and implementing regulations.
FLOATABLE OIL: Oil, fat or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. Wastewater shall be considered free of floatable oil if it is properly pretreated and the wastewater does not interfere with the collection system.
GARBAGE: Solid wastes from the domestic and commercial preparation, cooking and dispensing of food, and from the handling, storage and sale of produce.
INDUSTRIAL USER: A. Any nongovernmental user of publicly owned treatment works identified in the "Standard Industrial Classification Manual, 1972, Office Of Management And Budget", as amended and supplemented, under the following divisions:
Division A, agriculture, forestry and fishing.
Division B, mining.
Division D, manufacturing.
Division E, transportation, communications, electric, gas and sanitary services.
Division I, services.
B. A user in the divisions listed in subsection A of this definition may be excluded if it is determined by the city that it will introduce primarily segregated domestic wastes or wastes from sanitary conveniences.
INDUSTRIAL WASTE: Any solid, liquid or gaseous substance discharged, permitted to flow, or escaping from any industrial, manufacturing, commercial or business establishment or process or from the development, recovery or processing of any natural resource as distinct from sanitary sewage.
MAJOR CONTRIBUTING INDUSTRY: An industrial user of the publicly owned treatment works that:
A. Has a flow of fifty thousand (50,000) gallons or more per average workday; or
B. Has a flow greater than ten percent (10%) of the flow carried by the municipal system receiving the waste; or
C. Has in its waste a toxic pollutant in toxic amounts as defined in standards issued under section 307(a) of the federal act; or
D. Is found by the permit issuance authority, in connection with the issuance of the NPDES permit to the publicly owned treatment works receiving the waste, to have significant impact, either singly or in combination with other contributing industries, on that treatment works or upon the quality of effluent from that treatment works.
MILLIGRAMS PER LITER: A unit of the concentration of water or wastewater constituent. It is 0.001 gram of the constituent in one thousand milliliters (1,000 ml) of water. It has replaced the unit formerly used commonly, parts per million, to which it is approximately equivalent, in reporting the results of water and wastewater analyses.
NPDES PERMIT: Any permit or equivalent document or requirements issued by the administrator, or, where appropriated by the director, after enactment of the federal water pollution control amendments of 1972, to regulate the discharge of pollutants pursuant to section 402 of the federal act.
NATURAL OUTLET: Any outlet into a watercourse, pond, ditch, lake or other body of surface water or groundwater.
ppm: Parts per million by weight.
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.
pH: The logarithm (base-10) of the reciprocal of the hydrogen ion concentration expressed by one of the procedures outlined in "Standard Methods".
POPULATION EQUIVALENT: A term used to evaluate the impact of industrial or other waste on a treatment works or stream. One population equivalent is one hundred (100) gallons of sewage per day, containing 0.17 pound of BOD and 0.20 pound of suspended solids.
PRETREATMENT: The treatment of wastewaters from sources before introduction into the wastewater treatment works.
PROPERLY SHREDDED GARBAGE: The wastes from the preparation, cooking, and dispensing of food that have 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 (1/2") (1.27 centimeters) in any dimension.
PUBLIC SEWER: A sewer provided by or subject to the jurisdiction of the city. The term also includes sewers within or outside the city boundaries that serve one or more persons and ultimately discharge into the city sanitary (or combined) sewer system, even though those sewers may not have been constructed with city funds.
REPLACEMENT; OPERATION AND MAINTENANCE: 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. The term "operation and maintenance" includes replacement.
RESIDENTIAL OR COMMERCIAL USER; NONINDUSTRIAL USER: Any user of the treatment works not classified as an "industrial user" or excluded as an "industrial user" as defined in this section.
SANITARY SEWER: A sewer that conveys sewage or industrial wastes, or a combination of both, and into which stormwater, surface water and groundwater or unpolluted industrial wastes are not intentionally admitted.
SEWAGE: Used interchangeably with "wastewater".
SEWER: A pipe or conduit for conveying sewage or any other waste liquids, including stormwater, surface water and groundwater drainage.
SEWERAGE: The system of sewers and appurtenances for the collection, transportation and pumping of sewage.
SEWERAGE FUND: The principal accounting designation for all revenues received in the operation of the sewerage system.
SHALL AND MAY: "Shall" is mandatory; "may" is permissible.
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 fifteen (15) minutes, more than five (5) times the average twenty four (24) hour concentration of flows during normal operation.
STANDARD METHODS: The examination and analytical procedures set forth in the most recent edition of "Standard Methods For The Examination Of Water and Wastewater", published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
STATE ACT: The Illinois anti-pollution bond act of 1970.
STATE GRANT: The state of Illinois participation in the financing of the construction of treatment works as provided by the Illinois anti-pollution bond act and for making such grants as filed with the secretary of state of the state of Illinois.
STORM SEWER: A sewer that carries stormwater, surface water and groundwater drainage but excludes sewage and industrial wastes other than unpolluted cooling water.
STORMWATER RUNOFF: That portion of the precipitation that is drained in the sewers.
SURCHARGE: The assessment in addition to the basic user charge and debt service charge which is levied on those persons whose wastes are greater in strength than the concentration values established in article A of this chapter.
SUSPENDED SOLIDS: Solids that either float on the surface of, or are in suspension in, water, sewage or industrial wastes, and which are removable by a laboratory filtration device. Quantitative determination of suspended solids shall be made in accordance with procedures set forth in "Standard Methods".
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 benefited by discharge to the sanitary sewers and wastewater treatment facilities provided.
USEFUL LIFE: The estimated period during which the collection system and/or treatment works will be operated and shall be years from the date of start up of any wastewater facilities constructed with a state grant.
USER CHARGE: A charge levied on users of treatment works for the cost of operation and maintenance.
USER CLASS: The type of user, either "residential or commercial (nonindustrial)" or "industrial", as defined in this section.
WASTEWATER: The spent water of a community. From this standpoint of course, wastewater may be a combination of the liquid and water carried wastes from residences, commercial buildings, industrial plants, and institutions, together with any groundwater, surface water, and stormwater that may be present.
WASTEWATER FACILITIES: The structures, equipment and processes required to collect, carry away and treat domestic and industrial wastes, and transport effluent to a watercourse.
WASTEWATER SERVICE CHARGE: The charge per quarter or month levied on all users of the wastewater facilities. The service charge shall be computed as outlined in article A of this chapter and shall consist of the total or the basic user charge, the debt service charge and a surcharge, if applicable.
WASTEWATER TREATMENT WORKS: An arrangement of devices and structures for treating wastewater, industrial wastes, and sludge; sometimes used as synonymous with "waste treatment plant" or "wastewater treatment plant" or "pollution control plant".
WATER QUALITY STANDARDS: Are defined in the water pollution regulations of Illinois.
WATERCOURSE: A channel in which a flow of water occurs, either continuously or intermittently. (1977 Code §§ 13.20.010 - 13.20.570)