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Unless the context specifically indicates otherwise, the meanings of terms used in this chapter shall be as follows:
BOD (Denoting BIOCHEMICAL OXYGEN DEMAND): The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five (5) days at twenty degrees centigrade (20°C), expressed in milligrams per liter.
BUILDING DRAIN: That part of the lowest horizontal piping of a drainage system which receives the discharge from toilets, sinks, lavatories, baths, and other drainage pipes inside the walls of the building and conveys it to the building sewers which begin five feet (5') (1.5 m) outside the inner face of the building walls.
BUILDING SEWER: The extension from the building drain to the public sewer or other place of disposal.
COMBINED SEWER: A sewer receiving both surface runoff and sewage.
GARBAGE: Solid wastes from the domestic and commercial preparation, cooking and dispensing of food, and from the handling, storage and sale of produce.
INDUSTRIAL USER: Any user of the city's treatment works who is identified in the definition of "industrial wastes" in this section.
INDUSTRIAL WASTES: A. The liquid wastes from any nongovernmental user of publicly owned treatment works identified in the "Standard Industrial Classification Manual, 1972, Office Of Management And Budget", as amended and supplemented under the following divisions:
Division A - Agriculture, forestry and fishing.
Division B - Mining.
Division D - Manufacturing.
Division E - Transportation, communications, electric, gas and sanitary services.
Division I - Services.
B. A user in the divisions listed above may be excluded if it is determined that it will introduce primarily segregated domestic wastes or wastes from sanitary conveniences.
INDUSTRIAL WASTEWATER MONITORING STATION: The monitoring station required by the USEPA and the city to determine the contribution of the industry to the public sewer system. Monitoring equipment shall include composite refrigerated sampler, recording pH meter and recording flowmeter. The city shall provide plans and specifications for the construction of the station. Cost of the construction of the station shall be at the industry's expense. Maintenance and upkeep of the station shall be at the industry's expense.
NATURAL OUTLET: Any outlet into a watercourse, pond, ditch, lake or other body of surface water or groundwater.
pH: The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
PROPERLY SHREDDED GARBAGE: The wastes from the preparation, cooking and dispensing of food that have been shredded to such a 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 (1/2") (1.21 cm) in any dimension.
PUBLIC SEWER: A sewer over which all owners of abutting properties have equal rights and which is controlled by public authority.
SANITARY SEWER: A sewer which carries sewage and to which stormwater, surface water and groundwater are not intentionally admitted.
SEWAGE: A combination of the water carried wastes from residences, business buildings, institutions and industrial establishments, together with such groundwater, surface water and stormwater as may be present.
SEWAGE TREATMENT PLANT: Any arrangement of devices and structures used for treating sewage.
SEWAGE WORKS: All facilities for collection, pumping, treatment and disposing of sewage.
SEWER: A pipe or conduit for carrying sewage.
SHALL; MAY: "Shall" is mandatory; "may" is permissive.
SLUG: Any discharge of water, sewage or industrial waste which, in concentration of any given constituent or in quantity of flow, exceeds, for any period of duration longer than fifteen (15) minutes, more than five (5) times the average twenty four (24) hour concentration of flows during normal operation.
STORM DRAIN (Sometimes Termed STORM SEWER): A sewer which carries stormwater and surface water and drainage, but excludes sewage and industrial wastes, other than unpolluted cooling water.
SUPERVISOR: The public works supervisor of the city or his authorized deputy, agent or representative.
SUSPENDED SOLIDS: Solids that either float on the surface of, or are in suspension in water, sewage or other liquids, and which are removable by laboratory filtering.
TC: A measurement of the total carbon content of the wastewater.
TOC: A measurement of the total organic carbon content of the wastewater.
USEPA: The United States environmental protection agency.
WATERCOURSE: A channel in which a flow of water occurs, either continuously or intermittently. (Ord. 258, 6-14-1988; amd. 2015 Code)