§ 2.00 DEFINITIONS.

   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.

§ 2.01.   BOD (denoting BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20°C, expressed in milligrams per liter (mg/l).

§ 2.02.   NH3 or NH3-N (denoting AMMONIA). The portion of nitrogen in the form of proteins or intermediate decomposition products which is determined by standard laboratory procedure for analysis of ammonia nitrogen, expressed in milligrams per liter (mg/l).

§ 2.03.   NORMAL DOMESTIC WASTEWATER. Wastewater that has a BOD concentration of not more than 200 mg/l average and 250 mg/l maximum; and a suspended solids concentration of not more than 250 mg/l average and 300 mg/l maximum; and an ammonia concentration of not more than 20 mg/l average and 40 mg/l maximum.

§ 2.04.   OPERATIONAL MAINTENANCE. Those functions that result in expenditures during the useful life 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. The term OPERATION AND MAINTENANCE includes replacement, as defined below.

§ 2.05.   REPLACEMENT. Expenditures 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.

§ 2.06.   RESIDENTIAL USER. Any contributor to the city’s treatment works whose lot, parcel or real estate or building is used for domestic dwelling purposes only.

§ 2.07.   SHALL is mandatory; MAY is permissive.

§ 2.08.   SS (denoting 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, as expressed in milligrams per liter (mg/1).

§ 2.09.   TREATMENT WORKS. Any devices and systems for the collection, storage, treatment recycling and reclamation of municipal sewage, domestic sewage or liquid wastes. These include intercepting sewers, outfall sewers, sewage collection systems, pumping, power and other equipment and their appurtenances; extensions, improvement, 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 treatment process or 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.