For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ADMINISTRATOR. The Administrator of the U. S. Environmental Protection Agency.
APPROVING AUTHORITY. The Council of the city.
BASIC USER CHARGE. The basic assessment levied on all users of the public sewer system.
BASIC USER RATE. The assessment levied on all users of the sewer system based upon metered water consumption.
BOD (BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures in five days at 20°C, expressed in milligrams per liter.
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 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 that is designed and intended to receive wastewater, storm, surface and groundwater drainage.
COMMERCIAL USER. Includes transit lodging, retail and wholesale establishments or places engaged in selling merchandise or rendering services.
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 revenue bonds outstanding.
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. Defined in any applicable NPDES permit.
FEDERAL ACT. The Federal Clean Water Act (33 USC 466 et seq.) as amended.
(Pub. L. 95-217).
FEDERAL GRANT. The U.S. government participation in the financing of the construction of treatment works as provided for 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 fat 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 food.
INDUSTRIAL USERS. Includes establishments engaged in manufacturing activities involving the mechanical or chemical transformation of materials or substances into products.
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.
INFILTRATION/INFLOW. The total quantity of water from both infiltration and inflow without distinguishing the source.
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.)
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, cross connections from storm sewers and combined sewers, catch basins, storm waters, surface runoff, street waters or drainage.
(
INFLOW does not include, and is distinguished from infiltration.)
INSTITUTIONAL/GOVERNMENTAL USER. Includes schools, churches, penal institutions and users associated with federal, state and local governments.
MAJOR CONTRIBUTING INDUSTRY. Any industrial user of the publicly-owned treatment works that:
(1) Has a flow of 50,000 gallons or more per average work day; or
(2) Has a flow greater than 10% of the flow carried by the city system receiving the waste; or
(3) Has in its waste a toxic pollutant in toxic amounts as defined in standards issued under section 307(a) of the Federal Act; or
(4) Is found by the permit issuing 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 (mg/1). A unit of the concentration of water or wastewater constituent. It is 0.0019 of the constituent in 1,000 milliliters of water. It has replaced the unit formerly used in common, parts per million, to which it is approximately equivalent, in reporting the results of water and wastewater analysis.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of surface or groundwater.
NPDES PERMIT. Any permit or equivalent document or requirements issued by the Administrator or, where appropriated by the Director, after enactment of the Federal Clean Water Act to regulate the discharge of pollutants pursuant to section 402 of the Federal Act.
OPERATION AND MAINTENANCE COSTS. All costs, direct and indirect (other than debt service) necessary to insure adequate wastewater treatment on a continuing basis, conforming to related federal, state and local requirements, and assuring optimal long term facility management.
(These costs include depreciation and replacement.)
pH. The logarithm (base 10) of the reciprocal of the hydrogen ion concentration expressed by one of the procedures outlined in the IEPA Division of Laboratories Manual of Laboratory Methods.
PLUMBING INSPECTOR. The Building Inspector of the city or representatives as designated by the city.
POPULATION EQUIVALENT. A term used to evaluate the impact of industrial or other waste on a treatment works or stream. One population equivalent is 100 gallons of sewage per day, containing 0.17 pounds of BOD and 0.20 pounds of suspended solids. The impact on a treatment works is evaluated as the equivalent of the highest of the three parameters. Impact on a stream is the higher of the BOD suspended solids parameters.
PRETREATMENT. The treatment of wastewater from sources before introduction into the wastewater treatment works.
PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that has been shredded to such degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than ½ inch in any dimension.
PWD. The City Public Works Director, or his or her designee.
PUBLIC SEWER. A sewer provided by or subject to the jurisdiction of the city. It shall also include sewers within or outside the city boundaries that serve one or more persons and ultimately discharge into the city sanitary sewers, even though those sewers may not have been constructed with city funds.
REPLACEMENT. Expenditures for obtaining and installing equipment, accessories or appurtenances which are necessary during the useful 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 USER. All dwelling units such as houses, mobile homes, apartments and permanent multi-family dwellings.
SANITARY SEWER. A sewer that conveys sewage or industrial wastes or a combination of both, and into which storm, surface and groundwater or polluted 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 storm, surface and groundwater drainage.
SEWERAGE. The system of sewers and appurtenances for the collection, transportation and pumping of sewage.
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 15 minutes more than five times the average 24-hour concentration of flows during normal operation.
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 for by the Illinois Anti-Pollution Bond Act and for making such grants as filed with the Secretary of State.
STORM SEWER. A sewer that carries storm, surface and groundwater drainage but excludes sewage and industrial wastes other than unpolluted cooling water.
STORMWATER RUN-OFF. That portion of the precipitation that is drained into the sewers.
SURCHARGE. The assessment in addition to the basic user charge, the basic user rate and debt service charge that is levied on those persons whose wastes are greater in strength than the concentration values established in § 52.105.
SUSPENDED SOLIDS (SS). Solids that either float on the surface of, or are in suspension in water, sewage or industrial waste, and which are removable by a laboratory filtration device. Quantitative determination of suspended solids shall be made in accordance with procedures set forth in the IEPA Division of Laboratories Manual of Laboratory Methods.
UNPOLLUTED WATER. Water 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.
USER CHARGE. A charge levied on users of treatment works for the cost of operation, maintenance and replacement.
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 §§ 52.105 through 52.108 and shall consist of the total of the basic user charge, the basic user rate, 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.
WASTEWATER. The spent water of a community. From this standpoint, of course, it 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 storm water that may be present.
WATER QUALITY STANDARDS. Defined in the Water Pollution Regulations of Illinois.
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
WATERWORKS AND SEWERAGE FUND. The principal accounting designation for all revenues received and expenses incurred in the operation of the waterworks and/or sewerage system. These revenues and expenses shall be accounted for so that water system revenues and expenses shall be recorded in the waterworks account of the waterworks and sewerage fund and revenue and expenses of the sewerage system shall be recorded in the sewerage account of the waterworks and sewerage fund.
(Ord. 1121, passed 12-20-99)