921.01 DEFINITIONS.
   Unless the context specifically indicates otherwise, the meaning of terms used in this chapter shall be as follows:
   (a)    "B. O. D. " or "Biochemical Oxygen Demand" means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at twenty degrees Centigrade expressed in parts per million by weight.
   (b)    "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 three feet outside the building wall.
   (c)    "Building sewer" means the extension from the building drain to the cubic sewer or other place of disposal.
   (d)    "Combined sewer" means a sewer receiving both surface run off and Municipal wastes.
   (e)    "Garbage" means solid wastes from the preparation, cooking and dispensing of food, and from the handling, storage and sale of produce.
   (f)    "Industrial wastes" means the liquid wastes from industrial processes as distinct from sanitary sewage.
   (g)    "Municipal wastes" means a combination of the water-carried wastes from residences, business buildings, institutions and industrial establishments, together with such ground, surface and storm waters as may be present.
   (h)    "Municipal wastes treatment plant" means any arrangement of devices and structures used for treating Municipal wastes.
   (i)    "Municipal wastes works" means all facilities for collecting, pumping, treating and disposing of Municipal wastes.
   (j)    "Natural outlet" means any outlet into a watercourse, pond, ditch, lake or other body of surface or ground water.
   (k)    "Person" means any individual, firm, company, association, society, corporation or group.
   (l)    "Pit" means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
   (m)    "Properly shredded garbage" means the wastes from the preparation, cooking and dispensing of food that have been shredded in 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 in any dimension.
   (n)    "Public sewer" means a sewer in which all owners of abutting properties have equal rights, and is controlled by public authority.
   (o)    "Sanitary sewage" means domestic wastes contributed by reason of human occupancy.
   (p)    "Sanitary sewer" means a sewer which receives and carries Municipal wastes; and to which storm, surface and ground waters and drainage are not intentionally admitted.
   (q)    "Sewer" means a pipe or conduit for carrying Municipal wastes.
   (r)    "Shall" is mandatory; "may" is permissive.
   (s)    "Storm sewer" or "storm drain" means a sewer which carries storm and surface waters and drainage, but excludes Municipal wastes.
   (t)    "Superintendent" and/or "Building Inspector" means the superintendent of Municipal wastes works or his authorized deputy, agent or representative.
   (u)    "Suspended solids" means solids that either float on the surface of, or are in suspension in water, Municipal wastes or other liquids; and which are removable by laboratory filtering.
   (v)    "watercourse" means a channel in which a flow of water occurs, either continuously or intermittently.
      (Ord. 1878. Passed 5-7-68; Ord. 2239. Passed 9-19-72.)