§ 50.002 DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   ACCRUED RESERVES. A method of keeping accounts of the segregated resources over several years to determine the funds available to offset capital expenditures to maintain an on-going-on-line waste treatment facility.
   ACT. The federal Water Pollution Control Act, as amended, Public Law 92-500, 33 USC 1251 et seq.
   ADMINISTRATOR. The Regional Administrator of Region V of the U.S. Environmental Protection Agency.
   ANY OTHER USER. For the purpose of the user charge and in determining the surcharge point, any user whose waste is above the average daily concentration of 200 milligrams per liter BOD and an average daily concentration of 250 milligrams per liter SS.
   APPROVING AUTHORITY. The Superintendent of the Sewer Department.
   AUDIT. An audit by the City Auditor as a separate report from other funds in accordance with General Services Administration Policy Circular, FMC73-2, as published on September 27, 1973 and shall cover the following:
      (1)   Financial operations are properly conducted;
      (2)   Financial reports are presented fairly;
      (3)   Applicable laws and regulations have been complied with (see §§ 50.095 through 50.101);
      (4)   Resources are managed and used in an economical and efficient manner;
      (5)   Desired results and objectives are being achieved in an effective manner; and
      (6)   Records of audit of the I.C.R.S. charges and expenditures are being retained for the useful life of the improvement.
   AUTHORIZED EXPENDITURES. Those authorized by the City Council made payable by the City Treasurer from the accounts kept for the expenditures of the user charge and industrial cost recovery systems. Expenditures from reserves shall be limited to those for which the reserve was created.
   BASIC USER CHARGE. The basic assessment levied on all users of the public sewer system.
   BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen, expressed in milligram per liter, utilized in the biochemical oxidation of organic matter under standard laboratory procedures in five days at 20°C.
   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 (1.5 meters) outside the inner face of the building wall.
   BUILDING DRAIN, SANITARY. That part of the lowest horizontal piping of a drainage system which receives the sanitary or industrial sewage only, except for intentionally admitted infiltration inside the walls of a building and conveys it to the building sewer beginning three feet outside the building wall.
   BUILDING DRAIN, STORM. That part of the lowest horizontal piping of a drainage system which receives the drainage other than soil or wastewater inside the walls of a building and conveys it to the storm sewer.
   BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal (also called house connection).
   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.
   CAPITAL IMPROVEMENT CHARGE. A charge levied on users to improve, extend or reconstruct the sewage treatment works.
   CITY. The City of Mattoon or its officers acting in a lawful and duly prescribed way.
   CLASSES OF USERS. The division of wastewater treatment customers by waste characteristics, and process or discharge similarities: Industrial user; domestic level user; any other user; commercial shall mean other than domestic level users, or industrial users or governmental users; and governmental users shall mean those federal, state or local units of government or quasi-governmental community project units.
   COMBINED SEWAGE. A combination of both wastewater and storm or surface water.
   COMBINED SEWER. A sewer which is designed and intended to receive wastewater, storm, surface 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. Said manhole shall be for the purpose of providing access for a city representative to sample and/or measure discharges.
    DEBT SERVICE CHARGE.
      (1)   The charge and amount paid each billing period for payments of the current year's principal and interest and coverage of the reserve requirements of the bonds outstanding as included in the debt service part of the sewer bill, as distinguished from the user charge system and/or industrial cost recovery system.
      (2)   The amount to be paid each billing period for payment of interest, principal and coverage of (loan, bond and the like) outstanding.
   DEPOSITED. Funds placed in the control of the City Treasurer, and if said deposit is in the form of a bank check, it shall be deemed collected within this definition until the applicable rules of the bank's collection procedures are fulfilled.
   DEPRECIATION. An annual operating cost reflecting capital consumption and obsolescence of real or permanent properties, generally between 15 and 50 years of useful life.
   DEPRECIATION RESERVE. An account for the segregation of resources to meet longer term renewal of facilities to accommodate wear or obsolescence of real or permanent properties, to the extent of physical and/or functional obsolescence, which also may result in an indirect functional betterment.
   DIRECTOR. The Chief Administrator Officer of the State Environmental Protection Agency.
   DOMESTIC LEVEL USER. For the purpose of the user charge system and in determining the surcharge point, a user whose waste is at or below an average daily concentration of 200 milligrams per liter BOD and an average daily concentration of 250 milligrams per liter SS, for example, normal domestic waste.
   DOMESTIC WASTE. The wastewaters from segregated domestic and/or sanitary conveniences as distinct from wastes from industrial processes.
   EASEMENT. An acquired legal right for the specific use of land owned by others.
   EFFLUENT CRITERIA. Defined in any applicable NPDES permit.
   FECAL COLIFORM. Any of the number of organisms common to the intestinal tract of man and animals, whose presence in sanitary sewage is an indicator of pollution.
   FEDERAL ACT. The Federal Clean Water Act (33 U.S.C. 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 of the Act.
   FLOATABLE OIL. Oil, fat or grease in a physical state such that it will separate by gravity for wastewater by treatment in an approved pretreatment facility. Wastewater shall be defined as being free of floatable oil if it does not, after pretreatment or otherwise, interfere with the flow of sewage in the sewer, which is to impede the flow by a rate of not less than the equivalent of the lowest flow in the specific lateral.
   FUNCTION OBSOLESCENCE. The process deficiency of a functional element of a plant beyond the capacity of a preventative maintenance program such that a new process device or piece of equipment would be more cost effective.
   FUNCTIONAL BETTERMENT. An improvement in process in increased facilities or an improvement in process in existing facilities which is directly anticipated to preclude physical betterment or is an indirect improvement to the process as a result of renewal on a cost effective basis.
   GARBAGE. Solid wastes from the domestic and commercial preparation, cooking and dispensing, and from the commercial handling, storage and sale of produce and food.
   INCOMPATIBLE POLLUTANT. Any nontreatable waste product, including nonbiodegradable dissolved solids.
   INDUSTRIAL COST RECOVERY FUND. The City Treasurer shall create within the city accounts, a fund for the accounting of revenue received and expenditures made from the industrial cost recovery system.
   INDUSTRIAL COST RECOVERY SYSTEM. The system of charges levied, as distinguished from the sewer bill whose constituent elements are the user charge system, the debt service charge and the billing ad collection charge, to recover from the aggregate of industrial users of a wastewater treatment works that portion of the grant amount allocable to treatment of wastes from such users proportionate to the use of the design of such facilities by each individual industrial user.
   INDUSTRIAL USER.
      (1)   For the purpose of industrial cost recovery system, 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:
         (a)   Division A - Agricultural, forestry and fishing.
         (b)   Division B - Mining.
         (c)   Division D - Manufacturing.
         (d)   Division E - Transportation, communications, electric, gas and sanitary services.
         (e)   Division I - Services.
      (2)   A user in the divisions listed may be excluded if it is determined by the Superintendent that the industry will introduce primarily segregated domestic wastes or wastes from sanitary conveniences.
   INDUSTRIAL WASTE.  
      (1)   The wastewaters from a combination of liquid and water carried wastes discharged from any industrial establishment resulting from any process carried on in that establishment inclusive of effluents from pretreatment facilities and/or discharges of polluted cooling waters.
      (2)   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. The water unintentionally entering the public sewer system, including sanitary building drains and sewers, 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 discharge into the public sewage system, including building storm drains, 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 swamp areas, manhole covers, cross connections from storm sewers and/or combined sewers, catch basins, storm waters, surface runoff, street wash waters or drainage.
   LOCAL CAPITAL COST CHARGE. Charges for costs other than the operation, maintenance and replacement costs, for example, debt service and capital improvement costs.
   MAJOR CONTRIBUTING INDUSTRY. An industrial user of the publicly owned treatment works that: has a flow of 50,000 gallons or more per average work day; has a flow greater than 10% of the flow carried by the municipal system receiving the waste; has in its waste, a toxic pollutant in toxic amounts as defined in standards issued under Section 307(a) of the Federal Act; or is found by the permit issuant 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.
   METHOD. The method of depreciation or replacement in terms of governmental fund accounting procedure, the inverse of which shall be the method of accruing the offsetting reserve which shall be exactly equal to the expense involved, and shall be individually applied to each functional element of a treatment process in terms of annual reserve requirements for the user charge and the annual re-evaluation of useful life.
   MILLIGRAMS PER LITER. A unit of the concentration of water or wastewater constituent. It is 0.001 grams of the constituent in 1,000 milliliters 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 analysis.
   NATIONAL POLLUTANT DISCHARGE ELIMINATION PERMIT (NPDES). 
      (1)   A permit issued under the National Pollutant Discharge Elimination System for Discharge of Wastewaters to the Navigable Waters of the United States pursuant to Section 402 of PL 92-500.
      (2)   Any permit or equivalent document or requirements issued by the Administration, 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.
   NATURAL OUTLET. Any outlet, including storm sewers and combined sewer overflows, into a water course, pond, ditch, lake, or other body of surface or groundwater.
   OPERATION AND MAINTENANCE COSTS. All costs, direct and indirect, not including debt service, but inclusive of expenditures attributable to administration, treatment, and collection of waste waters necessary to insure adequate wastewater treatment on a continuing basis, conform to applicable regulations, and assure optimal long term facility management.
   PERSON. 
      (1)   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.
      (2)   Any individual, firm, company, association, society or corporation discharging any wastewater to the receiving facility.
   pH. 
      (1)   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.
      (2)   The reciprocal of the logarithm of the hydrogen concentration. The concentration is the weight of hydrogen ions, in grams, per liter of solution. Neutral water for example, has a pH value of seven, and a hydrogen ion concentration of 10-7.
   PHYSICAL BETTERMENT. The expansions of a physical facility to increase capacity of the treatment works.
   PHYSICAL OBSOLESCENCE. The material deficiency of a functional element of a plant to a point that repair as normal or preventative maintenance is not cost benefit effective.
   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 .17 pounds of BOD and .20 pounds of suspended solids.
   PPM. Parts per million by weight.
   PRETREATMENT. 
      (1)   The treatment of wastewaters from sources before introduction into the wastewater treatment works.
      (2)   The treatment of industrial sewage from privately owned industrial sources prior to introduction of the waste effluent into a public treatment works, in accordance with 40 C.F.R. 128.
   PRETREATMENT FACILITY. Any privately owned and operated waste treatment facility capable of limiting the strength of discharges to the public sewer to 300 MG/liter BOD and 350 MG/liter SS.
   PREVENTIVE MAINTENANCE. Normal equipment maintenance that would maintain the anticipated useful life of the element of a wastewater treatment works.
   PRIVATE SEWER. A sewer which is not owned by the city.
   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 ½-inch (1.27 centimeters) in any dimension.
   PUBLIC SEWER. 
      (1)   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 (or combined sewer system), even through those sewers may not have been constructed with city funds.
      (2)   A sewer which is owned and controlled by the city which shall include the elements of the collection system.
   RECOVERY PERIOD. Thirty years, pertaining to the wastewater treatment facility constructed under a Federal Grant pursuant to PL 92-500, 33 USC 1251 et seq.
   RECOVERY UNIT CHARGES. The unit charges in parts of dollars that can be applied to the flow in 100 cubic feet, pounds of BOD, and pounds of SS.
    RENEWAL. The expenditure of reserve funds or other funds to overcome physical and/or functional consumption of plant capacity or function or obsolescence of same, in order that the equivalent in function of plant is present at the end of the anticipated useful life.
   REPLACEMENT.
      (1)   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.
      (2)   An annual operating cost reflecting capital consumption and physical and/or functional obsolescence of personal or limited useful life equipment or appurtenances.
   REPLACEMENT RESERVE. An account for the segregation of resources to meet capital consumption of personal or limited useful life equipment or appurtenances.
   RETAINED AMOUNT. The amount of money held in trust and deposit for the expansion of the facilities together with the interest earned thereon for the proration of the Industrial Cost Recovery System Fund according to PL 92-500, 33 USC 1251 et seq.
   SAMPLING PROCESS. The securing of wastewater samples by single grab method and/or composite sampling of five grab samples in eight hours and/or the samples secured by a 24-hour composite method.
   SANITARY SEWER. 
      (1)   The means of conveyance of the combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants and institutions, including polluted cooling water, domestic and/or industrial wastes.
      (2)   A sewer that conveys sewage or industrial wastes or a combination of both, and into which storm, surface, and ground waters are not intentional 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.
   SEWERAGE FUND. The principal account designation for all revenues received in the operation of the sewerage systems.
   SIGNIFICANT INDUSTRY. Any industry that will contribute greater than 10% of the design flow and/or design pollutant loading of the treatment works.
   SLUG. Any discharge of water or wastewater which in concentration of any given constituent or in any quantity of flow which exceeds for any period of duration longer than 15 minutes more than five times the average 24-hour concentration of lows during normal operation and shall adversely affect the collection system and/or performance of the wastewater treatment works.
   STANDARD METHODS. The laboratory procedures set forth in the latest edition, at the title of analysis, of "Standard Methods for the Examination of Water and Wastewater" prepared and published jointly by the American Public Health Association, the American Waterworks Association, and the Water Pollution Control Federation, and 40 C.F.R. Park 136, 3, 4, and 5, and/or other recognized procedures by U.S.E.P.A. and State Environmental Protection Agency.
   STATE ACT. The state Anti-Pollution Bond Act of 1970.
   STATE GRANT. The state participation in the financing of the construction of treatment works as provided for by the State Anti-Pollution Bond Act and for making such grants as filed with the Secretary of State.
   STORM SEWER.
      (1)   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.
      (2)   A sewer that carries storm, surface and ground water drainage but excludes sewage and industrial wastes other than unpolluted cooling water.
   STORM WATER RUNOFF. That portion of the precipitation that is drained into the sewers.
   SUPERINTENDENT. The Superintendent of the City Sewage Collection and Treatment Department, or his properly authorized deputy, agent, or representative acting in a proper and lawful capacity.
   SURCHARGE. 
      (1)   The assessment in addition to the basic user charge for the load of BOD and SS which is levied on those persons whose wastes are greater in strength than normal.
      (2)   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 §§ 50.095 through 50.101.
   SUSPENDED SOLIDS (SS).
      (1)   Total suspended matter that either floats on the surface of, or is in suspension in water, wastewater, or other liquids and is removable by laboratory filtration as prescribed in "Standard Methods for the Examination of Water and Wastewater" and referred to as nonfilterable residue.
      (2)   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 State EPA Division of Laboratories Manual of Laboratory Methods.
   TOTAL SOLIDS. The sum of suspended and dissolved solids.
   UNPOLLUTED WATER. Water of equality equal to or better than the effluent criteria of an applicable NPDES Permit, or water that would not cause violation of receiving water quality standards of a receiving stream, and would not be benefited by discharge to the sanitary sewers and wastewater treatment facilities provided.
   USEFUL LIFE. 
      (1)   The anticipated term in years of physical and/or functional productivity of elements of and/or the whole wastewater treatment process, which can be reevaluated as a result of preventative maintenance, renewal which offsets physical and/or functional obsolescence, renewal of capital elements due to consumption, and physical and/or functional betterment either direct or indirect.
      (2)   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 CHARGE SYSTEM. The system of charges that include the charges derived from estimated annual operation and maintenance requirements for the following fiscal year, the depreciation and replacement reserve requirements on new and old facilities as fixed assets, pursuant to Section 204(B) of P 92-500; and 40 CFR 35.935-13 (February 11, 1974 Federal Register).
   USER CLASS. The type of user, residential, institutional/governmental, commercial, or industrial as defined in this definition.
      (1)   COMMERCIAL USER. Transit lodging, retail and wholesale establishments or places engaged in selling merchandise, or rendering services.
      (2)   INDUSTRIAL USERS. Establishments engaged in manufacturing activities involving the mechanical or chemical transformation of materials of substance into products.
      (3)   INSTITUTIONAL/GOVERNMENTAL USER. Schools, churches, penal institutions, and users associated with federal, state and local governments.
      (4)   RESIDENTIAL USER. All dwelling units such as houses, mobile homes, apartments, and permanent multi-family dwellings.
   VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated at 50° C. for 15 minutes.
   WASTEWATER.
      (1)   The combination of liquid and water-carried wastes from residences, commercial building, industrial plants and institutions, including unintentionally admitted infiltration (for example, sewage).
      (2)   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 storm water 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 §§ 50.095 through 50.101, and shall consist of the total or the basic user charge, the local capital cost and a surcharge, if applicable.
   WASTEWATER TREATMENT WORKS.
      (1)   The structures, equipment and processes required to collect, transport and treat domestic industrial wastes and dispose of the effluent and accumulated residual solids.
      (2)   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 COURSE. A natural or artificial channel for the passage of water either continuously or intermittently, including the primary discharge of the waste treatment plant effluent to an intermittent stream.
   WATER QUALITY STANDARDS. The Water Pollution Regulations of the state.
   WATER SYSTEM. Collectively all facilities for the potable water supply.
(Ord. 87-4536, passed 4-7-1987)