Unless the context specifically indicates otherwise, as used in this chapter
(1) "B.O.D." (biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at twenty degrees Centigrade, expressed in milligrams per liter (mg/1)
(2) "Building drain" means 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 a building and conveys it to the building sewer, beginning two feet (0.6 meters) outside the building wall.
(3) "Building sewer" or "house connection" means the extension from the building drain to the public sewer or other place of disposal.
(4) "Combined sewer" means a sewer intended to receive both wastewater and storm or surface water.
(5) "Easement" means an acquired legal right for a specific use of land owned by others.
(6) "Floatable oil" is oil, fat or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. Wastewater shall be considered free of floatable fat if such water is properly pretreated and does not interfere with the collection system.
(7) "Garbage" means animal and vegetable waste resulting from the handling, preparation, cooking and serving of food.
(8) "Hearing board" means the Mayor and Council, as designated by Section 1045.34.
(9) "Industrial waste" means the wastewater from an industrial process, trade or business, as distinct from domestic or sanitary waste.
(10) "Manager" means the City Manager or his or her authorized deputy, agent or representative.
(11) "Natural outlet" means any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface or ground water.
(12) "Person" means any individual, firm, company, association, society, corporation or group.
(13) "pH" means the logarithm of the reciprocal of the hydrogen-ion 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.
(14) "Properly shredded garbage" means waste from the preparation, cooling and dispensing of food that has been shredded to such a degree that all. particles will be carried freely under the flaw conditions normally prevailing in public sewers, with no particle greater than one-half inch (1.27 centimeters) it any dimension.
(15) "Public sewer" means a common sewer controlled by a governmental agency or public utility.
(16) "Sanitary sewer" means a sewer that carries liquid and water-carried waste from residences, commercial buildings, industrial plants and institutions, together with minor quantities of ground, storm and surface waters that are not admitted intentionally.
(17) "Sewage" is the spent water of a community. The preferred term is "wastewater."
(18) "Sewer" means a pipe or conduit that carries wastewater or drainage water.
(19) "Shall" is mandatory; "may" is permissive.
(20) "Slug" means any discharge of water or wastewater which, in the concentration of any given constituent or in the quantity of flow, exceeds, for any period longer than fifteen minutes, more than five times the average twenty-four hour concentration or flow during normal operation, and which adversely affects the performance of the wastewater treatment works.
(21) "Storm drain" or "storm sewer" means a drain or sewer for conveying water, ground water, subsurface water or unpolluted water from any source.
(22) "Suspended solids" (SS) means total suspended matter that either floats on the surface of, or is suspended in, water, wastewater or another liquid, and that is removable by laboratory filtering as prescribed in "Standard Methods for the Examination of Water and Wastewater," expressed in milligrams per liter (mg/1).
(23) "Unpolluted water" is water of a quality equal to, or better than, the effluent criteria of the current National Pollutant Discharge Elimination System (NPDES) permit, or water that would not cause a violation of receiving water quality standards and would not be benefited by discharge into the wastewater treatment works.
(24) "Wastewater" means the spent water of a community. From the standpoint of source, it may be a combination of 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.
(25) "Wastewater treatment works" means the structures, equipment and processes required to collect, carry away and treat domestic and industrial wastes and to dispose of the effluent.
(26) "Water pollution control facility'" means an arrangement of devices and structures for treating wastewater, industrial wastes and sludge. "Water pollution control facility" is sometimes used synonymously with "waste treatment plant" or "wastewater treatment plant."
(27) "Watercourse" means a natural or artificial channel for the passage of water, either continuously or intermittently.
(Ord. 1039. Passed 5-8-84.)