For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BOD (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, or other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning five feet (one and one-half 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 receiving both surface runoff and sewage.
GARBAGE. Solid wastes from the domestic and commercial preparation, cooking, and dispensing of food, and from the handling, storage, and sale of produce.
INDUSTRIAL WASTES. The liquid wastes from industrial manufacturing processes, trade, or business as distinct from sanitary sewage.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake, or other body of surface or groundwater.
NORMAL DOMESTIC WASTEWATER. Wastewater that has a BOD concentration of not more than 250 mg/l and a suspended solids concentration of not more than 250 mg/l.
OPERATION AND MAINTENANCE. All expenditures during the useful life of the treatment works for materials, labor, utilities, and other items which are necessary for managing and maintaining the sewage works to achieve the capacity and performance for which the works were designed and constructed.
PERSON. Any individual, firm, company, association, society, corporation, or group.
pH. The logarithm 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 (one and twenty-seven hundredths centimeters) in any dimension.
PUBLIC SEWER. A sewer in which all owners of abutting properties have equal rights, and is controlled by public authority.
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.
RESIDENTIAL CONTRIBUTOR. Any contributor to the city's treatment works whose lot, parcel of real estate, or building is used for domestic dwelling purposes only.
SANITARY SEWER. A sewer which carries sewage and to which storm, surface, and ground waters are not intentionally admitted.
SEWAGE. A combination of the water-carried wastes from residences, business buildings, institutions, and industrial establishments together with the ground, surface, and storm waters as may be present.
SEWAGE TREATMENT PLANT. Any arrangement of devices and structures used for treating sewage.
SEWAGE WORKS. All facilities for collecting, pumping, treating, and disposing of sewage.
SEWER. A pipe or conduit for carrying sewage.
SHALL. Is mandatory; MAY is permissive.
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.
SS (SUSPENDED SOLIDS). Solids that either float on the surface of or are in suspension in water, sewage, or other liquids and which are removable by laboratory filtering.
STORM DRAIN. Sometimes termed STORM SEWER, shall mean a drain or sewer for conveying water, groundwater, subsurface water, or unpolluted water from any source.
TREATMENT WORKS. Any devices and systems for the storage, treatment, recycling, and reclamation of city sewage, domestic sewage, or liquid industrial wastes. These include intercepting sewers, outfall sewers, sewage collection systems, individual systems, pumping, power, and other equipment and their appurtenances; extensions improvement, remodeling, additions and alterations thereof; elements essential to provide a reliable recycled supply such as standby treatment units and clear well facilities; and any works, including site acquisition of the land that will be an integral part of the treatment process or is used for ultimate disposal of residues resulting from the treatment including land used for the storage of treated wastewater in land treatment systems before land application; or any other method of system for preventing, abating, reducing, storing, treating, separating, or disposing of city waste or industrial waste, including waste in combined storm water and sanitary sewer systems.
USEFUL LIFE. The estimated period during which a treatment works will be operated.
USER CHARGE. The portion of the total wastewater service charge which is levied in a proportional and adequate manner for the cost of operation, maintenance, and replacement of the wastewater treatment works.
WATER METER. A volume measuring and recording device, furnished and/or installed by the city and furnished and/or installed by a user and approved by the city.
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(1973 Code, § 3-217) (Ord. 543, passed 11-10-1983; Ord. 544, passed 11-10-1983)