"Applicant" means the owner or authorized agent of the property to be served, and said applicant shall be the responsible person for payment of bills for sewer service.

"BOD" (denoting biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures in five days at twenty 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 feet outside the inner face of the building wall.

"Building sewer" means the extension from the public sewer to the building drainage system.

"City" means city of Selah.

"Commercial or business" means a commercial or business establishment excluding grocery stores, bakeries, restaurants and drive-ins discharging domestic wastes in volumes less than five thousand gallons per day on an average annual flow basis and not constituting a significant load on the sewage works. Wastes from such a user do not pass through a city-approved monitoring station. For the purposes of determining sewer rates, waste from such a user is assumed to have a strength of two hundred mg/l BOD and two hundred mg/l TSS.

"Cooling water" or "uncontaminated cooling water" or "noncontact cooling water" means water used for cooling purposes which does not come into direct contact with any raw material, intermediate product, waste product, or finished product, and that contains no additives, pollutants, toxics, or dangerous wastes.

"Equivalent residential unit (ERU)" is considered to have an average sewage discharge of three hundred gallons per day. All single-family dwellings and multifamily units of four units or less on a single parcel will be considered a single ERU per dwelling unit.

"Excessive industrial discharge" means any discharge of water, wastewater or industrial waste from an industrial user which, in volume or concentration, exceeds that industrial user's allocated capacity for any component (flow, BOD, or TSS) by twenty-five percent for any one-day period.

"Grocery stores, bakeries, restaurants and drive-ins" means a commercial or business establishment engaged in the commercial preparation and selling of foods, which typically discharge wastes with strengths greater than the waste discharged by a residential user.

"Industrial user" means any nongovernmental user of the sewage treatment plant identified in the Standard Industrial Classification Manual, 1972, United States Office of Management and Budget, as amended and supplemented. In addition, an industrial user is a user of either the pretreatment plant or the sewage treatment plant who discharges wastewater into the system.

"Industrial waste" means any solid, liquid or gaseous substance discharged or permitted to be discharged to the sewage works from any industrial or manufacturing establishment as distinct from sewage.

"Major industrial user" means an industrial user who:

"Milligrams per liter" (mg/l) shall mean the weight of any substance expressed in milligrams contained within one liter.

"Multiresidential developments," including manufactured housing parks, condominiums and townhouse developments, and residential development complexes served collectively or independently, shall be considered as single ERU per dwelling unit.

"Multiresidential dwellings" means dwellings consisting of more than four units on one parcel of land, including, but not limited to, multiplexes, apartments, and multiunit residential complexes and shall be considered 0.7 ERUs per unit.

"Natural outlet" means any outlet into a watercourse, pond, ditch, lake, or other body of surface or ground water.

"Noncity user" means a person connected to and a user of the city sewage works whose physical location is outside the city limits.

"Nonfood industrial user" means an industrial user who does not discharge food processing waste.

Other ERU Uses. ERUs for other types of discharges shall be based on the average flow as determined from typical usage data available from the Washington State Department of Ecology and approved by the public works director. An ERU shall be assigned to each three hundred gallons per day or portion thereof rounded to the nearest one-tenth. (Example: If average flow from a commercial building was estimated to be five hundred eighty gallons per day, the connection fee would be based on 1.9 ERUs.)

"Parts per million" means a weight-to-weight ratio; the parts-per-million value multiplied by the factor 8.345 shall be equivalent to pounds per million gallons of water.

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

"pH" means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.

"Private sewer" means the sewer line and disposal system constructed, installed, or maintained where connection with the public sewer system is not required herein.

"Properly shredded garbage" means the wastes from the preparation, cooking, and dispensing of food that has been shredded to such 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 (1.27 centimeters) in any dimension.

"Public sewer" means a sewer in which all owners of abutting properties have equal rights, is controlled by public authority, which carries sewage and industrial waste, and to which storm waters, surface waters and ground waters are not intentionally admitted.

"Sewage" means a combination of the water-carried wastes from residences, business buildings, and institutions, together with such ground, surface, and storm waters as may be present.

"Sewage treatment plant" means any arrangement of devices and structures used for treating sewage.

"Sewage works" means all facilities for collecting, pumping, treating, and disposing of sewage.

"Sewer" means a pipe or conduit for carrying sewage.

Shall and May. The word "shall" is mandatory. The word "may" is permissive.

"Slug" means a discharge of water, sewage, or industrial wastes which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than fifteen minutes more than five times the average twenty-four-hour concentration or flows during normal operation.

"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 Water Environment Federation.

"Storm sewer" or "storm drain" means a sewer that carries storm, surface and ground water drainage, but excludes sewage and industrial wastes other than unpolluted cooling water.

"Strength of wastewater" means the amount of BOD and TSS in the wastewater as determined through samples collected and tested by the city in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.

"Superintendent" means the public works superintendent of the city of Selah, or his/her authorized representative.

"Total suspended solids" (TSS) means solids that either float on the surface of, or are in suspension in, water, sewage, or industrial waste, which are removable by laboratory filtering, are determined by quantitative standard laboratory procedures, and are expressed in milligrams per liter.

"Treatment plant supervisor" means the supervisor in charge of the city of Selah sewage treatment plant.

"Unpolluted water or liquids" means any water or liquid containing none of the following: free or emulsified grease or oil; acids or alkalis; substances that may impart taste and odor or color characteristics; toxic or poisonous substances in suspension, colloidal state or solution; odorous or otherwise obnoxious gases.

"Usual business hours" means the hours between eight a.m. and five p.m. Monday through Friday.

"Wastewater" means a combination of the liquid or water-carried wastes removed from residences, institutions, commercial, and industrial establishments, together with such ground water, surface water, and storm water as may be present.

"Watercourse" means a channel in which a flow of water occurs, either continuously or intermittently. (Ord. 2079, § 1, 2019; Ord. 1394,, 1998.)