For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20ºC, expressed in milligrams per liter.
BUILDING DRAIN. The part of the lowest horizontal piping of a drainage system which receives the discharge from waste and other drainage pipes inside the building and conveys it outside the inner face of the building wall.
BUILDING SEWER (HOUSE CONNECTION). The extension from the building drain to the public sewer or other place of disposal.
COMBINED SEWER. A sewer intended to receive both wastewater and storm or surface water.
COMMERCIAL/INDUSTRIAL USER. Any contributor to the district’s wastewater collection works whose lot, parcel of real estate or building is used for purposes other than a single-family dwelling and contributes only wastewater which is less than or equal to normal strength domestic wastewater.
DISTRICT. The Dakota Dunes Community Improvement District or its officers or employees authorized to perform the functions to which there is reference.
DISTRICT SEWAGE COLLECTION SYSTEM. The entire sewage collection system of the district for the collection of sewage and industrial wastes.
EASEMENT. An acquired legal right for the specific use of land owned by another.
FLOATABLE OIL. Oil, fat or grease 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 pre-treated and the wastewater does not interfere with the collection system.
FLOW UNIT. A volume of liquid equal in quantity to 1,000 gallons.
GARBAGE. The animal and vegetable waste resulting from the handling, preparation, cooking and serving of foods.
INDUSTRIAL WASTE. The liquid wastes resulting from any commercial, manufacturing or industrial operations as distinct from sewage.
MAJOR INDUSTRIAL USER. A non-residential, commercial or industrial user, which discharges waste into the sewer system of the district which:
(1) Has an industrial waste discharge or has a waste strength greater than normal strength domestic sewage;
(2) Has a industrial waste discharge greater than 5% of the flow carried by the municipal system receiving the waste;
(3) Has in its waste a toxic pollutant in amounts as defined in standards issued under § 307(a) of the Federal Water Pollution Control Act amendments of 1972, being 33 U.S.C. § 1251;
(4) If found by the district to have significant impact, either singly or in combination with other contributing industries, on their treatment works or upon the quality of effluent from that treatment works; or
(5) Is listed in the applicable industrial cost recovery standard industrial classification.
MAY. Permissive.
NATURAL OUTLET. Any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface or groundwater.
NORMAL DOMESTIC WASTEWATER. Wastewater that has a BOD concentration of not more than 250 parts per million and a suspended solid’s concentration of not more than 300 parts per million and a oil and grease content of not more than 100 parts per million.
NOTICE. A notice in writing directed to the owner or other person affected for the time specified by this chapter, stating briefly the condition which is the reason for the notice and consequences which would result upon failure to comply with the terms of the NOTICE. A NOTICE shall be deemed given when either it is personally served on the person to whom it is directed or is mailed to him or her at his or her last known address. If the owner cannot be reached by mail so addressed, service may be made upon the occupant.
OIL AND GREASE. Oil and grease as determined by the standard laboratory procedures for the Soxhlet extraction method as defined in the current addition of Standard Methods.
OPERATION AND MAINTENANCE. All expenditures during the useful life of the wastewater collection works for materials, labor, utilities and other items which are necessary for managing and maintaining the sewage collection works to achieve the capacity and performance for which such works are designed and constructed. OPERATION AND MAINTENANCE charges shall be included in the sewer user charge and shall be levied in a proportional and adequate manner.
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 seven and a hydrogen ion concentration of ten.
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 (1.27 centimeters) in any direction.
PUBLIC SEWER. A sewer common to the public and which is controlled by public authority.
REPLACEMENT CHARGES. Expenditures for the obtaining and installing equipment, accessories or appurtenances which are necessary during the useful life of the wastewater collection works to maintain the capacity and performance for which such works were designed and construed. REPLACEMENT CHARGES shall be included in the sewer user charge and shall be levied in a proportional and adequate manner.
RESIDENTIAL USER. Any contributor to the district’s wastewater collection works whose lot, parcel of real estate or building is used for single-family dwelling purposes only.
SANITARY SEWER. A sewer carrying sewage and to which storm, surface and groundwater is not admitted.
SERVICE. Connection to the district sewage collection system and the right to the use of its facilities whether or not the facilities are in fact used.
SEWAGE. Water carried wastes from residences, institutions, business buildings and other establishments. The preferred term is WASTEWATER.
SEWER. A pipe or conduit for carrying sewage.
SEWER EXTENSION. The total project costs for the proposed extensions to the sewer system.
SEWER USER CHARGE. Any and all rates, charges, fees or rentals levied against and payable by a sewer user and major industrial users.
SHALL. Is mandatory.
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 15 minutes more than five times the average 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 (STORM SEWER). A drain or sewer for conveying water, groundwater, subsurface water or unpolluted water from any source.
SUSPENDED SOLIDS (S). 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 non-filterable residue.
TREATMENT CHARGE. All charges made to the district by the City of Sioux City, for treatment of the wastewater collected by such collection works. TREATMENT CHARGES shall be included in the sewer user charge.
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 benefitted by discharge to the sanitary sewers and wastewater treatment facilities provided.
USEFUL LIFE. The estimated period during which a wastewater collection works will be operated.
USER. The owner, lessee or occupant of the premises connected to the municipal sewage collection system.
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 storm water that may be present.
WASTEWATER COLLECTION WORKS. Any devices and systems for the collection or carrying of district sewage, domestic sewage or liquid industrial wastes. These include intercepting sewers, outfall sewers, sewage collection systems, individual systems, pumping, power and other equipment, and their appurtenances; extensions, improvements, remodeling, additions and alterations thereof; elements essential to provide a reliable recycled supply, such as standby treatment units and clear well facilities and any works, including site acquisition of the land that will be an integral part of the wastewater collection process.
WASTEWATER FACILITIES. The structures, equipment and processes required to collect, carry away and treat domestic and industrial wastes and dispose of the effluent.
WASTEWATER TREATMENT WORKS. The arrangement of devices and structures for treating wastewater, industrial wastes and sludge. Sometimes used as synonymous with WASTE TREATMENT PLANT, WASTEWATER TREATMENT PLANT or WATER POLLUTION CONTROL PLANT.
WATER METER. A water volume measuring and recording device, furnished and/or installed by the district or furnished and/or installed by a user and approved by the district.
WATERCOURSE. A natural or artificial channel for the passage of water either continuously or intermittently.
(Prior Code, §§ 7-82, 7-191)