Chapter 13.72
DEFINITIONS
Sections:
13.72.010 Approving authority.
13.72.070 Chlorine requirement.
13.72.300 Wastewater facilities.
13.72.310 Wastewater treatment works.
13.72.010 Approving authority.
“Approving authority” means the director of public works or the city engineer, the superintendent of the wastewater treatment plant, or other designated official of the city or his duly authorized deputy, agent or representative. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 101, 1981.]
13.72.020 BOD.
“BOD” (denoting biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter in five days at 20 degrees centigrade, expressed as milligrams per liter. Quantitative determination of BOD shall be made in accordance with procedures set forth in “Standard Methods.” [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 102, 1981.]
13.72.030 Building drain.
“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 feet (1.5 meters) outside the inner face of the building wall. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 103, 1981.]
13.72.040 Building sewer.
“Building sewer” means the extension from the building drain to the public sewer or other place of disposal, also called house connection. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 104, 1981.]
13.72.050 City.
“City” shall mean the city of Leavenworth. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 105, 1981.]
13.72.060 Combined sewer.
“Combined sewer” means a sewer intended to receive both wastewater and storm water or surface water. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 106, 1981.]
13.72.070 Chlorine requirement.
“Chlorine requirement” means the amount of chlorine, in milligrams per liter, which must be added to sewage to produce a specified residual chlorine content in accordance with procedures set forth in the Standard Methods. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 107, 1981.]
13.72.080 Easement.
“Easement” means an acquired legal right for the specific use of land owned by others. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 108, 1981.]
13.72.090 Floatable oil.
“Floatable oil” is oil, fat, 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. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 109, 1981.]
13.72.100 Garbage.
“Garbage” means the residue from the preparation, cooking and dispensing of food, and from the handling, storage and sale of food products and produce. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 110, 1981.]
13.72.110 Ground garbage.
“Ground garbage” means the residue from the preparation, cooking and dispensing of food that has been shredded to such degree that all particles will be carried freely in suspension under the flow conditions normally prevailing in public sewers with no particle greater than one-half inch in any dimension. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 111, 1981.]
13.72.120 Industrial waste.
“Industrial waste” means the wastewater from industrial process, trade or business, as distinct from sanitary sewage. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 112, 1981.]
13.72.130 Natural outlet.
“Natural outlet” means any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface water or ground waters. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 113, 1981.]
13.72.140 Parts per million.
“Parts per million” shall be a weight to weight ratio; the parts per million value multiplied by the factor 8.2345 shall be equivalent to pounds per million gallons of water. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 114, 1981.]
13.72.150 Person.
“Person” means any and all persons, including any individual, firm, company, municipal or private corporation, association, society, institution, enterprise, governmental agency or other entity. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 115, 1981.]
13.72.160 pH.
“pH” means the reciprocal of the logarithm 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. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 116, 1981.]
13.72.170 Public sewer.
“Public sewer” means any sewer provided by or subject to the jurisdiction of the city. It shall also include sewers within or outside the city boundaries that serve one or more persons and ultimately discharge into the city sanitary sewer, storm sewer, or combined sewer system, even though those sewers may not have been constructed with city funds. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 117, 1981.]
13.72.180 Sanitary sewage.
“Sanitary sewage” means a combination of water-carried wastes from residences, business buildings, institutions and industrial plants (other than industrial wastes from such plants); together with such groundwater, surface water and storm water as may be present. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 118, 1981.]
13.72.190 Sanitary sewer.
“Sanitary sewer” means a sewer that carries liquid and water-carried wastes from residents, commercial buildings, industrial plants, and institutions, together with minor quantities of groundwater, storm water and surface water that are not admitted intentionally. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 119, 1981.]
13.72.200 Sewage.
“Sewage” is the spent water of a community. The preferred term is “wastewater” as defined in LMC 13.72.290. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 120, 1981.]
13.72.210 Sewer.
“Sewer” means a pipe or conduit that carries sanitary sewer wastewater or storm sewer drainage water. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 121, 1981.]
13.72.220 Shall and may.
“Shall” is mandatory; “may” is permissible. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 122, 1981.]
13.72.230 Slug.
“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 15 minutes more than five times the average 24-hour concentration or flows during normal operation. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 751 § 1, 1984; Ord. 680 § 123, 1981.]
13.72.240 Standard Methods.
“Standard Methods” means the examination and analytical procedures set forth in the most recent edition of “Standard Methods for the Examination of Water, Sewage and Industrial Wastes” published jointly by the American Public Health Association, the American Water Works Association and the Federation of Sewage and Industrial Wastes Associations. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 124, 1981.]
13.72.250 Storm drain.
“Storm drain” (sometimes termed “storm sewer”) means a drain or sewer for conveying water, groundwater, subsurface water, or unpolluted water from any source. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 125, 1981.]
13.72.260 Storm water runoff.
“Storm water runoff” means that portion of the rainfall that is drained into the sewers. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 126, 1981.]
13.72.270 Suspended solids.
“Suspended solids” means solids that either float on the surface of, or are in suspension in, water, wastewater, or other liquids, and that are removable by laboratory filtering as prescribed in “Standard Methods for Examination of Water and Wastewater” and are referred to as nonfilterable residue. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 127, 1981.]
13.72.280 Unpolluted water.
“Unpolluted water” is 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. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 128, 1981.]
13.72.290 Wastewater.
“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 storm water that may be present. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 129, 1981.]
13.72.300 Wastewater facilities.
“Wastewater facilities” means the structures, equipment, and processes required to collect, carry away, and treat domestic and industrial wastes and dispose of the effluent. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 130, 1981.]
13.72.310 Wastewater treatment works.
“Wastewater treatment works” means an arrangement of devices and structures for treating wastewater, industrial wastes, and sludge, sometimes used as synonymous with waste treatment. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 131, 1981.]
13.72.320 Watercourse.
“Watercourse” means a natural or artificial channel for the passage of water either continuously or intermittently. [Ord. 1449 § 1 (Exh. A), 2013; Ord. 680 § 132, 1981.]