§ 13.12.020. Definitions.

Unless the context specifically indicates otherwise, the meaning of terms used in this chapter shall be as follows:

"BOD" (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 twenty (20) degrees C, expressed in milligrams per liter (mg/l).

"Normal domestic wastewater" means wastewater that has a BOD concentration of not more than two hundred twenty (220) mg/l and a suspended solids concentration of not more than two hundred twenty (220) mg/l.

"Operation and maintenance" means all expenditures during the useful life of the treatment works for materials, labor, utilities and other items which are necessary for managing and maintaining the treatment works to achieve the capacity and performance for which such works were designed and constructed.

"Replacement" means 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. The term "operation and maintenance" includes replacement.

"Residential contributor" means any contributor to the City's treatment works whose lot, parcel of real estate, or building is used for domestic dwelling purposes only.

"Industrial and commercial contributor" means any contributor to the City's treatment works who is not included within the definition of "residential contributor" as defined above.

"Shall" is mandatory; "may" is permissive.

"SS" (denoting suspended solids) means 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.

"Treatment works" means any devices and systems for the storage, treatment, recycling and reclamation of municipal 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 improvement, remodeling, additions and alterations thereof; elements essential to provide a reliable recycled supply such as standby treatment units and clearwell facilities; and any works, including site acquisition 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; 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 divided in a proportional and adequate manner for the cost of operation, maintenance and replacement of the wastewater treatment works.

"Water meter" means a water volume measuring and recording device, furnished or installed by the City of Larned or furnished or installed by a user and approved by the City.

(Ord. 1126 § 2, 1983)