929.02 DEFINITIONS.
   For the purpose of this chapter the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   (a)   BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal.
   (b)   FOUNDATION DRAINS. Subsurface drains laid around the foundation of a building, either within or outside the building foundation, for the purpose of carrying ground or subsurface water to some point of disposal.
   (c)   INDUSTRIAL USER. Any discharger of a trade or process waste.
   (d)   INDUSTRIAL WASTE. The liquid and water-carried wastes resulting from the processes employed in industrial, manufacturing, trade, laboratory and/or research facilities, or business establishments, as distinct from domestic wastes.
   (e)   NATURAL OUTLET. An outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake, or other body of surface or ground water.
   (f)   (NPDES) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT. The same as such is defined in the Code of Federal Regulations, 40 CFR Part 125, and in Public Law 92-500, § 402.
   (g)   NONSANITARY FLOW. Storm water originating from downspouts, storm and groundwater drains, and foundation drains.
   (h)   PUBLIC SEWER. Any sewer owned by the City, including storm, sanitary, or combined sewers.
   (i)   RESIDENTIAL USER. Any user discharging domestic wastes from buildings or premises that are used as permanent places for human occupancy, such as single- family dwellings, rowhouses, townhouses, mobile homes, garden and standard apartments, and high rise apartments. Transient lodging, considered commercial in nature, is not included.
   (j)   SANITARY SEWER. A sewer which carries sanitary and industrial wastes, and to which storm, surface, and groundwater are not intentionally admitted.
   (k)   SEWAGE. The combination of the liquid and water carried wastes from residences, commercial buildings, industrial plants, and institutions (including polluted cooling water).
   (l)   SEWAGE SYSTEM or WASTEWATER TREATMENT SYSTEM. The structures, equipment, and process required to collect, transport, and treat domestic and industrial wastes, and dispose of the effluent and accumulated residual solids.
   (m)   STORM SEWER. A pipe or conduit designed for the purpose of carrying storm, surface, cooling, and drainage water from the point of origin to some point of disposal, but which is not intended to carry domestic or industrial sewage.
   (n)   SLUG. 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 hours concentration of flows during normal operation.
   (o)   USER. Any person who discharges, causes, or permits the discharge of wastewater into the wastewater treatment system.
   (p)   WASTEWATER. The liquid and water-carried waste from dwellings, commercial buildings, industrial facilities, and institutions; together with any groundwater, surface water, or storm water that may be present, whether treated or untreated, which is discharged or permitted to enter the wastewater treatment system.
   (q)   WASTEWATER TREATMENT SYSTEM. See SEWAGE SYSTEM.
      (Ord. 1983-32. Passed 11-22-83.)
   PRETREATMENT STANDARDS