Unless the context specifically indicates otherwise, the meaning of terms used in the ordinance codified in this chapter, shall be as follows:

    "Biochemical oxygen demand (BOD)" means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five (5) days at twenty (20) degrees centigrade, expressed in milligrams per liter.

    "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 the building and conveys it to the building sewer, beginning five (5) feet outside of the inner face of the building wall.

    "Building sewer" means the extension from the building drain to the public sewer or other place of disposal, also called house connection.

    "City" means the City of Vernal, or its City Council, or its authorized representatives.

    "Combined sewer" means sewer intended to receive both wastewater and storm or surface water.

    "Easement" means an acquired legal right for the specific use of land owned by others.

    "Floatable oil" means oil, fat or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. A wastewater shall be considered free of floatable fat if it is properly pretreated and the wastewater does not interfere with the collection system.

    "Garbage" means the animal and vegetable waste resulting from the handling, preparation, cooking and serving of foods.

    "Hearing board" means that board appointed according to provision of Section 13.28.210.

    "Industrial wastes" means the wastewater from industrial processes, trade or business, as distinct from domestic or sanitary wastes.

    "May" is permissive (see "Shall").

    "Natural outlet" means any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface or groundwater.

    "Person" means any individual, firm, company, association, society, corporation or group.

    "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 seven (7) and a hydrogen-ion concentration of 10- ⁷.

    "Properly shredded garbage" means 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 (1/2) inch (1.27 centimeters) in any dimension.

    "Public sewer" means a common sewer controlled by a governmental agency or public utility.

    "Sanitary sewer" means a sewer that carriers 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" means the spent water of community. The preferred term is "wastewater."

    "Sewer" means a pipe or conduit that carries wastewater or drainage water.

    "Shall" is mandatory (see "May").

    "Slug" means any discharge of water or wastewater which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than fifteen (15) minutes more than five (5) times the average twenty-four (24) hour concentration or flows during normal operation and shall adversely affect the collection system and/or performance of the wastewater treatment works.

    "Storm drain" (sometimes termed "storm sewer") means a drain or sewer for conveying water, groundwater, subsurface water, or unpolluted water from any source.

    "Superintendent" means the Superintendent of Wastewater Collection and/or Treatment System, or his authorized deputy, agent or representative.

    "Suspended solids" means 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 the "Standard Methods for the Examination of Water and Wastewater" and referred to as nonfilterable residue.

    "Unpolluted water" means 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 benefitted by discharge to the sanitary sewers and wastewater treatment facilities provided.

    "Wastewater" means 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, together with any groundwater, surface water and stormwater that may be present.

    "Wastewater facilities" means the structures, equipment and processes required to collect, carry away and treat domestic and industrial wastes and dispose of the effluent.

    "Wastewater treatment works" means an arrangement of devices and structures for treating wastewater, industrial wastes and sludge, sometimes used as synonymous with "waste treatment plant" or "wastewater treatment plant" or "waste pollution control plant."

    "Watercourse" means a natural or artificial channel for the passage of water either continuously or intermittently. (Ord. 79-10, Art. I)