§ 90-8. Definitions.
The following words, terms and phrases, when used in this article, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:
Ammonia means the concentration of NH 3 , expressed as nitrogen (N), in milligrams per liter (mg/L).
BOD 5 (denoting biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20 degrees Celsius, expressed in milligrams per liter (mg/L).
Commercial user and general user service mean users for nonresidential purposes including all retail stores, restaurants, office buildings, laundries, and other private business and service establishments.
Normal wastewater shall mean wastewater that has an average BOD 5 concentration of 400 mg/L, an average suspended solids concentration of 400 mg/L, and an average ammonia concentration of 50 mg/L.
Operation and maintenance means those functions that result in expenses incurred for the day-to-day operation of the treatment works for materials, labor, utilities and other items which are necessary for managing and for which such works were designed and constructed.
Replacement means expenditures, in addition to expenses incurred for the operation and maintenance of the treatment works, for obtaining and installing equipment, accessories or appurtenances which are necessary during the useful life of the treatment works to maintain the capacity and performance for which such works were designed and constructed.
Residential user means any contributor to the city's treatment works whose lot, parcel and real estate, or building is used for domestic dwelling purposes only.
SS (denoting suspended solids) means solids that either float on the surface of or are in suspension in water, wastewater, or other liquids and which are removable by laboratory filtering. ("TSS" denotes total suspended solids.)
Treatment works means any devices and systems for the storage, treatment, recycling and reclamation of municipal wastewater, domestic wastewater or liquid industrial wastes. This includes intercepting sewers, wastewater collection systems, pumping, power, and other equipment and their appurtenances; extensions, improvements, plant processes, remodeling additions and alterations thereof; elements essential to provide a reliable recycled supply such as standby treatment units and clear well facilities; and any work, including site acquisitions of the land that will be an integral part of the treatment process or is used for ultimate disposal of residues resulting from such treatment (including land for composting sludge, temporary storage of such compost and land used for the storage of treated wastewater in land treatment systems before land application); or any other method or system for preventing, abating, reducing, storing, treating, separating or disposing of municipal waste or industrial waste, including waste in combined stormwater and sanitary sewer systems.
Useful life means the estimated period during which a treatment works will be operated.
User charge means that portion of the total wastewater service charge which is levied in a proportional and adequate manner for the cost of operation, maintenance and replacement of the wastewater treatment works.
Wastewater meter means a wastewater volume measuring and recording device, furnished and/or installed by a user and approved by the city.
Water meter means a water volume measuring and recording device, furnished and/or installed by the city.
(Code 1979, § 31-8)
Cross reference
Definitions generally, § 1-2.