For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BIOCHEMICAL OXYGEN DEMAND or BOD5. The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20 degrees centigrade, expressed in milligrams per liter. It represents the breakdown of carbonaceous materials as distinct from nitrogenous materials.
BUILDING DRAIN. 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, or one and one-half meters, 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.
COMBINED SEWER. A sewer receiving both surface runoff and sewage.
ENGINEER. The City Engineer or his or her authorized deputy, agent, or representative.
GARBAGE. Solid wastes from the domestic and commercial preparation, cooking, and dispensing of food, and from the handling, storage and sale of produce.
INDUSTRIAL WASTES. The liquid, gaseous and solid wastes from industrial manufacturing processes, trade, or business as distinct from sanitary sewage. Industrial waste may also result from the development, recovery and processing of natural resources.
MAY. The action referred to is permissive.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT. A permit issued by the United States Environmental Protection Agency/State Pollution Control Agency setting limits on pollutant strength that a permitee may legally discharge into the waters of the U.S. pursuant to the federal and state water pollution control regulations.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake, or other body of surface or ground water.
NORMAL DOMESTIC STRENGTH WASTE. Wastewater characterized by wastes created in the preparation of foods, bathing, laundry facilities, and water carried human waste whose characteristics do not exceed 300 mg/l BOD5 and 325 mg/l TSS, and is identified for the purpose of determining surcharge rates.
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.
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, or 1.27 centimeters, in any dimension.
PUBLIC SEWER. A sewer in which all owners of abutting properties have equal rights, and is controlled by public authority.
SANITARY SEWER. A sewer which carries sewage and to which storm, surface and ground waters are not admitted.
SEWAGE. A combination of the water-carried wastes from residences, business buildings, institutions, and industrial establishments, together with any incidental ground, storm, and surface 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.
SHALL. The action referred to is mandatory.
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 15 minutes more than five times the average 24-hour concentration of flows during normal operation.
STORM SEWER. A sewer which carries storm and surface waters and drainage, but excludes sewage and industrial wastes, other than unpolluted cooling water.
SUPERINTENDENT. The Superintendent of sewage works and/or of water pollution control of the city or his or her authorized deputy, agent, or representative.
TOTAL SUSPENDED SOLIDS (TSS). Solids that either float on the surface of, or are suspended in water, sewage or other liquids, and which are removable by laboratory filtering as prescribed in Standard Methods for the Examination of Water and Wastewater, latest edition, and referred to as “non- filterable residue.”
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(Ord. 138, passed 10-10-90)