For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory conditions in five days at 20° C., expressed in milligrams per liter.
BUILDING. Residential and commercial structures which enclose a source of wastewater.
BUILDING DRAIN. That 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 convey it to the building sewer, beginning five feet (1.5 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, also called house connection.
EASEMENT. An acquired legal right for the specific use of land owned by others.
FLOATABLE OIL. Oil, fat, or grease in a physical state such that it will separate by gravity from wastewater treatment in an approved pretreatment facility. A wastewater shall be considered free of floatable fat if is properly treated and the wastewater does not interfere with the collection system.
GARBAGE. The animal and vegetable waste resulting from the handling, preparation, cooking, and serving of foods.
INDUSTRIAL WASTES. The wastewater from industrial processes, trade, or business as distinct from domestic or sanitary wastes.
NATURAL OUTLET. Any outlet, including storm sewers and combined sewer overflows, that discharge into a watercourse, pond, ditch, lake, or other body of surface water or groundwater.
MAY. Is permissive.
pH. The logarithm of the reciprocal of the hydrogen ions concentration. The concentration is the weight of hydrogen ions, in grams, per liter of solution. Neutral water, for example, has a pH value of 7 and a hydrogen-ion concentration of 10-7.
PROPERLY SHREDDED GARBAGE. The waste 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 particles greater than 1/2 inch in any dimension.
PUBLIC SEWER. A common sewer controlled by a governmental agency or public utility.
SANITARY SEWER. A sewer that carries liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions together with minor quantities of ground, storm, and surface waters that are not admitted intentionally.
SEWAGE. The spent water of a community. The preferred term is WASTEWATER.
SEWER. A pipe or conduit that carries wastewater.
SHALL. Is mandatory.
SLUG. Any discharge of wastewater which in concentration of any given constituent or in quality of flow exceeds for 15 minutes more than five times the average 24-hour concentration or flow during normal operation.
STORM DRAIN or STORM SEWER. A drain or sewer for conveying water, groundwater subsurface water, or unpolluted water from any source.
SUPERINTENDENT. The Superintendent of wastewater facilities of the city or its authorized deputy, agent, or representative.
SUSPENDED SOLIDS. Total suspended matter that either floats on the surface of or is in suspension in water, wastewater, or other liquids, and that is removable by laboratory filtering as prescribed in “Standard Methods for the Examination of Water and Wastewater” and referred to as nonfilterable residue.
UNPOLLUTED WATER. Water of 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.
WASTEWATER. The spent water of a community. From the standpoint of source, it may be a combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants and institutions.
WASTEWATER FACILITIES. The structures, equipment, and processes required to collect, carry away, and treat domestic and industrial wastes and dispose of the effluent.
WASTEWATER TREATMENT WORKS. An arrangement of devices and structures for treating wastewater, industrial wastes, and sludge. Sometimes used synonymous with “waste treatment plant” or “wastewater treatment plant” or “water pollution control plant.”
WATERCOURSE. A natural or artificial channel for the passage of water either continuously or intermittently.
(Ord. 198, passed 11-11-91)