§ 52.01 DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   B.O.D. (denoting BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20°C, expressed in parts per million by weight.
   BUILDING DRAIN. The part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drain pipes inside the walls of the building and conveys it to the building sewer, beginning approximately five feet outside the inner face of the building wall.
   BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal.
   COMBINATION SEWER or COMBINED SEWER. A sewer receiving both storm water and sewage.
   GARBAGE. Wastes from the preparation, cooking and dispensing of food and the handling, storage, processing and sale of perishable produce.
   INDUSTRIAL WASTES. The liquid wastes, solids or semi-solids from industrial processes as distinct from domestic sanitary sewage.
   MAY. The act referred to is permissive.
   NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of water, either surface or ground water.
   PERSON. Any individual, firm, company, association, society, corporation or group.
   pH. The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
   PPM. Parts per million by weight.
   PROPERLY SHREDDED GARBAGE. The wastes from the cooking, preparation and dispensing of food that has been cut or shredded to such a degree that all particles will be carried freely under flow conditions normally prevailing in public sewers with no particle greater than one-half inch in any dimension.
   PUBLIC SEWER. A sewer in which all owners of abutting property have equal rights and which is controlled by public authority.
   SANITARY SEWER. A sewer which carries sewage and to which storm, surface and ground waters are not intentionally admitted.
   SEWAGE. Any combination of water-carried wastes from residences, business buildings, institutions, laboratories and industrial establishments, together with such ground water, surface and storm waters as may be present.
   SEWAGE TREATMENT PLANT. Any arrangement of devices and structures used for treating sewage.
   SEWAGE WORKS. All facilities for collecting, pumping, treating and disposing of sewage.
   SEWER. Any pipe, tile, tubes or conduit for carrying sewage.
   SHALL. The act referred to is mandatory.
   STORM SEWER or STORM DRAIN. A sewer or drain, natural or artificial, which carries storm and surface waters and drainage but which excludes sewage and polluted industrial wastes.
   STORM WATER. The part of the rainfall which reaches the sewers as run-off from natural land surface, building roofs or pavements or as ground water infiltration.
   SUSPENDED SOLIDS. The solids that either float on the surface of, or are suspended in, water, sewage or other liquids and which are removable by laboratory filtering.
   UNCONTAMINATED INDUSTRIAL WASTES. Waste water which has not come into contact with any substance used in, or incidental to, industrial processing operations.
   WATERCOURSE. An open natural channel in which a flow of water occurs, either continuously or intermittently.
(1979 Code, § 2.41) (Ord. 41, passed 7-1-1969)