For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
APPROVING AUTHORITY. The City Council, or its duly authorized agent, deputy or 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.
BUILDING DRAIN. The part of the lowest horizontal 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, 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.
CHLORINE REQUIREMENT. The amount of chlorine in milligrams per liter, which must be added to sewerage to produce a residual chlorine content, or to meet the requirements of some other objective, in accordance with procedures set forth in Standard Methods.
COD. Chemical oxygen demand.
COMBINED SEWER. A sewer receiving both surface runoff and sewerage.
COMMERCIAL USER. Includes transient lodging, retail and wholesale establishments or places engaged in selling merchandise for personal, household or industrial consumption and/or rendering services to others.
COMPATIBLE POLLUTANT. Biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, plus additional pollutants identified in the NPDES permit if the publicly-owned treatment works was designed to treat the pollutants and, in fact, does remove the pollutants to a substantial degree.
DEBT SERVICE CHARGE. Cost per unit of sewerage for debt retirement.
DEPRECIATION. The annual reduction in the fair market value of real estate during its useful life at a standard percentage per year.
DOMESTIC USER. Includes all dwelling units such as row houses, mobile homes, apartments, permanent multi-family dwellings and single-family dwellings. Transient lodging considered commercial in nature is not included in this definition.
GARBAGE. Solid wastes from the domestic and commercial preparation, cooking and dispensing of food; and from the handling, storage and sale of produce.
GOVERNMENTAL USER. Includes legislative, judicial, administrative and regulatory activities of federal, state and local governments, such as courthouses, police and fire stations, city halls and similar governmental users.
HYDROGEN ION CONCENTRATION. See pH.
INCOMPATIBLE POLLUTANT. Any pollutant which is not a COMPATIBLE POLLUTANT, as defined in this section.
INDUSTRIAL COST RECOVERY. Recovery by the city from all industrial users of the city’s sewerage treatment works of the amount of all federal grant moneys expended on the sewerage treatment works subsequent to 3-1-1973, allocable to the treatment of sewerage wastes from the industrial users.
INDUSTRIAL COST RECOVERY PERIOD. The period during which the grant moneys allocable to the treatment of wastes from industrial users is recovered from the industrial users of the sewage treatment works.
INDUSTRIAL USER.
(1) Includes manufacturing activities involving the mechanical or chemical transformation of materials of substance into new products. These activities occur in establishments usually described as plants, factories or mills and characteristically use power driven machines and material handling equipment.
(2) The term
INDUSTRIAL USER shall mean any non-governmental 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, Agriculture, Forestry and Fishing;
(b) Division B, Mining;
(c) Division D, Manufacturing;
(d) Division E, Transportation, Communications, Electric, Gas and Sanitary Services; and
(e) Division I, Services.
(3) A user in the divisions listed above may be excluded if it is determined by the city that the user will introduce primarily segregated domestic wastes or wastes from sanitary conveniences.
INDUSTRIAL WASTE. The liquid or liquid conveyed waste from industrial manufacturing processes, trades or businesses, cooling water, discharges from industrial pretreatment facilities and on a case by case basis, discharges from business establishments exceeding normal sanitary needs of employees.
INSTITUTIONAL USER. Includes social, charitable, religious and educational activities such as schools, churches, hospitals, nursing homes, penal institutions and similar institutional users.
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 work day;
(2) Has a flow greater than 5% of the flow carried by the municipal system receiving the waste;
(3) Has in its waste, a toxic pollutant in toxic amounts as defined under § 307a of the Federal Water Pollution Act Amendments of 1972 (Pub. Law No. 92-500); or
(4) Is found by the permit issuance authority, in connection with the issuance of an 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.
mg/l. Denotes milligrams per liter.
MULTI-FAMILY DWELLING. A building designed and used as dwelling units for occupancy by three or more families, independently of each other.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT. The national system of issuance of permits under § 402 of Federal Water Pollution Act Amendments of 1972 (Pub. Law No. 92-500) and includes any state or interstate program that has been approved by the Administrator in whole or in part, pursuant to § 402 of the above Act.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of surface or ground water.
NON-INDUSTRIAL USER. All sewerage users, except those defined as industrial users herein.
OPERATION AND MAINTENANCE.
(1) All costs, direct or indirect, (other than debt service) necessary to ensure the adequate waste-water treatment by the sewerage treatment works on a continuing basis in a manner which conforms with all related federal, state and local requirements to assure optimal long-term facility management.
(2) The term
OPERATION AND MAINTENANCE shall include depreciation and routine parts replacement.
PERSON. Any individual, firm, company, association, society, corporation or group.
pH. The logarithm to the base ten of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
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 in dimension.
PUBLIC SEWER. A sewer which is controlled by public authority.
REGIONAL ADMINISTRATOR. The regional administrator of the United States Federal Environmental Protection Agency, Chicago, Illinois.
REGULATORY AGENCY. The state’s Environmental Protection Agency and United States Federal Environmental Protection Agency.
REPLACEMENT. 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 the works were designed and constructed.
SALVAGE VALUE.
(1) Land for treatment works, including land used as part of the treatment process or for ultimate disposal of residues, shall be assumed to have a salvage value at the end of the planning period equal to its prevailing market value at the time of the analysis.
(2) Right-of-way easements shall be considered to have a
SALVAGE VALUE not greater than the prevailing market value at the time of the analysis. Structures will be assumed to have a SALVAGE VALUE if there is a use for the structures at the end of the planning period. In this case, SALVAGE VALUE shall be estimated using straight-line depreciation during the service life of the treatment works.
(3) For phased additions of process equipment and auxiliary equipment,
SALVAGE VALUE at the end of the planning period may be estimated under the same conditions and on the same basis as described above for structures.
SANITARY FACILITIES. Consists of all internal plumbing installed for the sole purpose of discharging water-carried wastes to a disposal source.
SANITARY SEWER. A sewer which carries sewerage and to which storm, surface and ground waters are not intentionally admitted.
SERVICE CHARGE. The user charge as defined above, plus the debt service charge, as defined above. Also defined as the cost per unit of sewerage made up of the user charge rate, plus the debt service rate.
SEWER. A pipe or conduit for carrying sewerage.
SEWERAGE. A combination of the water-carried wastes from residences, business buildings, institutions and industrial establishments.
SEWERAGE TREATMENT PLANT. Any arrangement of devices and structures used for treating sewerage.
SEWERAGE WORKS. All facilities for collecting, pumping, treating and disposing of sewerage.
SLUG. Any discharge of water, sewerage 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.
STANDARD METHODS. The examination and analytical procedures set forth in the most recent edition of Standard Methods for the Examination of Water, Sewerage and Industrial Wastes, published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
STORM DRAIN or STORM SEWER. A sewer which carries storm and surface waters and drainage, but excludes sewerage and industrial wastes, other than unpolluted cooling water.
SURCHARGE. The assessment in addition to the service or user charge which is levied on those persons whose wastes are greater in strength than the concentration values established as representative of normal sewerage.
SUSPENDED SOLIDS. Solids that either float on the surface of, or are in suspension in water, sewerage or other liquids, and which are removable by laboratory filtering.
USEFUL LIFE. The estimated period during which a treatment works will be operated.
USER CHARGE. The charge levied on users of the sewerage treatment works for the cost of operating and maintaining the works. This charge shall apply to all users whose wastes do not exceed in strength the concentration values established as representative of normal sewerage.
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(1994 Code, § 52.002) (Ord. 262, passed 3-8-1976)