Unless the context specifically indicates otherwise, the meaning of terms used in this chapter shall be as follows:
AASHO: | The American Association of State Highway Officials. |
ASTM: | The American Society for Testing Materials. |
AWWA: | The American Water Works Association. |
AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER: | Either a principal executive officer of at least the level of vice president, if the industrial user is a partnership or proprietorship, or a duly authorized representative, if such a representative is responsible for the overall operation of the facilities from which any direct or indirect discharge originates. |
AVERAGE SEWER STRENGTH: | Sewage containing wastes in amounts less than or equal to two hundred fifty milligrams per liter (250 mg/l) BOD and two hundred fifty-four milligrams per liter (254 mg/l) total suspended solids (TSS). |
BIOCHEMICAL OXYGEN DEMAND (BOD): | 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 SEWER: | The extension from the building drain to the public sewer or other place of disposal, also called house connection. |
BYPASS: | The intentional or unintentional diversion of waste streams from any portion of an industrial user's treatment facility. |
COMBINED SEWER: | A sewer intended to receive both wastewater and storm or surface water. |
COMPOSITE SAMPLE: | A representative flow proportioned or time proportioned sample collection within a twenty-four (24) hour period composed of a minimum of twelve (12) individual samples (aliquots) collected at equally spaced intervals and combined according to flow or time. |
EASEMENT: | An acquired legal right for the specific use of land owned by others. |
EDU: | Equivalent dwelling unit. |
FOG: | Fats, oils and greases in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. A wastewater shall be considered free of floatable fat if it is properly pretreated and the wastewater does not interfere with the collection system. |
GARBAGE: | The animal and vegetable waste resulting from the handling, preparation, cooking and serving of foods. |
INDUSTRIAL USER: | Any user that discharges wastewater other than domestic wastes from industrial or commercial processes. |
INDUSTRIAL USER, SIGNIFICANT: | Any industrial user subject to a categorical effluent standard and noncategorical users whose process flows exceed twenty-five thousand (25,000) gallons per day, have a waste stream flow greater than five percent (5%) of the wastewater treatment plant capacity or have a reasonable potential to adversely affect the POTW, including its effluent and biosolids. |
INDUSTRIAL WASTES: | The wastewater from industrial processes, trade or business as distinct from domestic or sanitary wastes. |
MAY: | Is permissive (see definition of Shall). |
NATURAL OUTLET: | Any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface or groundwater. |
OSHA: | The occupational safety health administration. |
PERSON: | Any individual, firm, company, association, society, corporation or group. |
pH: | The logarithm of the reciprocal of the hydrogen ion concentration. The concentration is the weight of hydrogen ions, in grams, per liter of solution. Neutral water, for example, has a pH value of 7 and a hydrogen ion concentration of 0.0000001 milligrams per liter. |
PRETREATMENT OR TREATMENT: | The reduction of the amount of pollutants, the elimination of pollutants, or the alteration of the nature of the pollutants' properties in wastewater to an acceptable level prior to or in lieu of discharging or otherwise introducing such pollutants into the wastewater utility, which may be obtained by physical, chemical or biological processes or other means exclusive of dilution. |
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") (1.27 cm) in any dimension. |
PUBLIC SEWER: | A common sewer controlled by a governmental agency or public utility. |
SANITARY SEWER: | A sewer that carries liquid and water carried wastes from residences, commercial buildings, industrial plants and institutions together with minor quantities of ground, storm and surface waters that are not admitted intentionally.
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SEWAGE: | The spent water of a community. The preferred term is "wastewater" as herein defined. |
SEWER: | A pipe or conduit that carries wastewater or drainage water. |
SHALL: | Is mandatory (see definition of May). |
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 fifteen (15) minutes more than five (5) times the average twenty-four (24) hour concentration or flows during normal operation and shall adversely affect the collection system and/or performance of the wastewater treatment works. |
STORM DRAIN: | Sometimes termed "storm sewer" shall mean a drain or sewer for conveying water, groundwater, subsurface water or unpolluted water from any source. |
SUSPENDED SOLIDS: | Total suspended matter that either floats on the surface of, or is in suspension in water, wastewater, or other liquids, and that is removable by laboratory filtering as prescribed in "Standard Methods For The Examination Of Water And Wastewater" and referred to as nonfilterable residue. |
UNPOLLUTED WATER: | Water of quality equal to or better than the effluent criteria in effect or water that would not cause violation of receiving water quality standards and would not be benefited by discharge to the sanitary sewers and wastewater treatment facilities provided. |
WEF: | Water environment federation. |
WASTEWATER: | The spent water of a community. From the standpoint of source, it may be a combination of the liquid and water carried wastes from residences, commercial buildings, industrial plants and institutions, together with any groundwater, surface water and stormwater that may enter into sewer collection system. |
WASTEWATER FACILITIES: | City owned structures, equipment and processes required to collect, carry away and treat domestic and industrial wastes and dispose of the effluent. |
WASTEWATER TREATMENT WORKS: | An arrangement of devices and structures for treating wastewater, industrial wastes and sludge. Sometimes used as synonymous with "waste treatment plant" or "wastewater treatment plant" or "water pollution control plant". |
WATERCOURSE: | A natural or artificial channel for the passage of water either continuously or intermittently. (Ord. 150, 7-20-1982; amd. Ord. 214, 11-18-1997; Ord. 279, 4-19-2022) |