In addition to words and terms defined elsewhere in this chapter, Chapter 51 or Chapter 52, the following words and terms as used in this chapter shall have the following meanings, unless some other meaning is plainly intended. Clarification of word usage: “Shall” is mandatory; “may” is permissible.
ADMINISTRATOR. The Administrator of the U.S. Environmental Protection Agency.
APPROVING AUTHORITY. The City Council of the city, or its representative.
BOD (denoting BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20°C, expressed in milligrams per liter.
BASIC USER CHARGE. The basic assessment levied on all users of the public sewer systems.
BUILDING DRAIN. The part of the lowest piping of a drainage system which receives that 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 (1.5 m) outside the inner face of the building wall.
CAPITAL IMPROVEMENT CHARGE. A charge levied on users to improve, extend or reconstruct the sewage treatment works.
CITY. The City of Troy.
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 loans and revenue bonds outstanding.
DIRECTOR. The Director of the Illinois Environmental Protection Agency.
EASEMENT. An acquired legal right of the specific use of land owned by others.
EFFLUENT CRITERIA. Defined in an applicable NPDES permit.
FEDERAL ACT. The Federal Clean Water Act (33 U.S.C. §§ 4466 et seq.) as amended (Pub. L. No. 95-217).
FLOATABLE OIL. Oil, fat or grease in a physical state such that will separate by gravity from wastewater by treatment in an approved pre-treatment facility. All 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 WASTE. 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: (1) has a flow of 50,000 gallons or more per average workday; or (2) has a flow greater than 10% of the flow carried by the municipal system receiving the waste; or (3) has in its waste a toxic pollutant in toxic amounts as defined in standards issued under 33 U.S.C. § 1317(a) of the Federal Act; or (4) 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 (mg/l). A unit of the concentration of water or wastewater constituent. It is 0.001 gram of the constituents in 1,000 milligrams (1,000 mg) of water. It has replaced the formerly commonly used “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 ground water.
NPDES PERMIT. Any permit or equivalent documents or requirements issued by the Administrator or, where appropriate, by the Director, after enactment of the Federal Clean Water Act of 1972, being 42 U.S.C. §§ 1251 et seq., to regulate the discharge of pollutants pursuant to 33 U.S.C. § 1342 of the Federal Act.
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 the procedures outlined in the IEPA Division of Laboratories Manual of Laboratory Methods.
POPULATION EQUIVALENT. 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 pound of BOD and 0.20 pound of suspended solids.
PRETREATMENT. The treatment of wastewaters from sources before introduction into the city wastewater collection system and 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 (1.27 cm) in any dimension.
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 the works were designed and constructed. The term “operation and maintenance” includes REPLACEMENT.
SEWAGE. Used interchangeably with “wastewater” (see definition of WASTEWATER).
SEWER. A pipe or conduit for conveying sewage or any other waste liquids, including storm, surface and ground water drainage.
SEWER, BUILDING. The extension from the building drain to the public sewer or other place of disposal.
SEWER, COMBINED. A sewer which is designed and intended to receive wastewater, storm, surface and ground water drainage.
SEWER, PUBLIC. 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 sewer system, even though those sewers may not have been constructed with city funds.
SEWER, SANITARY. A sewer that conveys sewage or industrial wastes or a combination of both, and into which storm, surface and ground water or polluted industrial wastes are not intentionally admitted.
SEWER, STORM. A sewer that carries storm, surface and ground water drainage but excludes sewage and industrial wastes other than unpolluted cooling water.
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.
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 or flows during normal operation.
STATE ACT. The Illinois Antipollution Bond Act of 1970, being ILCS Ch. 30, Act 405, §§ 1 et seq.
STORMWATER RUNOFF. The portion of the precipitation that is drained into the sewers.
SURCHARGE. The assessment in addition to the wastewater service charge which is levied on those persons whose wastes are greater in strength than the concentration values established in § 53.03.
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 benefitted 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.
USER CLASS. The type of user, residential, institutional/government, commercial or industrial, as defined below.
USER, COMMERCIAL. Includes transit lodging, retail and wholesale establishments or places engaged in selling merchandise or rendering services.
USER, INDUSTRIAL. Includes establishments engaged in manufacturing activities involving the mechanical or chemical transformation of materials of substance into projects.
USER, INSTITUTIONAL/GOVERNMENTAL. Includes schools, churches, penal institutions and users associated with federal, state and local government.
USER, RESIDENTIAL. All dwelling units such as houses, mobile homes, apartments and permanent multi-family dwellings.
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 ground water, 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 month levied on all users of the wastewater facilities. The service charge shall be computed as outlined in § 53.03.
WASTEWATER TREATMENT WORKS. An arrangement of devices and structures for treating wastewater, industrial wastes and sludge. Sometimes used as synonymous with WASTE TREATMENT PLANT, WASTEWATER TREATMENT PLANT or POLLUTION CONTROL PLANT.
WATER QUALITY STANDARDS. Defined in the water pollution regulations of the state.
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(1986 Code, § 20-136) (Ord. 1997-17, passed 5-5-1997)