For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AMMONIA NITROGEN (NH3-N). The quantity of ammonia in the wastewater, sewage or other liquids, as measured by standard laboratory test, and expressed in terms of equivalent nitrogen, in units of milligrams per liter (mg/l).
BIOCHEMICAL OXYGEN DEMAND (BOD). 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)
DEBT SERVICE CHARGES. Charges levied on users of the sewage treatment system to support the annual debt service obligations of the system.
EXCESSIVE STRENGTH SURCHARGES. Charges levied on users of the sewage treatment system whose contribution contains biological oxygen demand (BOD), suspended solids (SS) or ammonia nitrogen (NH3-N) in concentrations which exceed limits specified herein for such pollutants and who are permitted to make such contributions to the system by decision of the Utility Commission.
NORMAL DOMESTIC WASTEWATER. Wastewater that has a BOD concentration of not more than 300 mg/l, as SS concentration of not more than 300 mg/l and a NH3-N of not more than 30 mg/l.
OM&R CHARGES. Charges levied on users of the wastewater treatment system to offset the cost of operations and maintenance of the system including normal replacement costs.
OPERATION AND MAINTENANCE. Those functions that result in expenditures during the useful life of the treatment works for material, labor, utilities and other items which are necessary for management and operation of the system according to its design and construction, the term OPERATION AND MAINTENANCE includes replacement as in REPLACEMENT.
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 are designed and constructed.
SEWER USER CHARGES. Charges levied on all users who discharge, cause or permit the discharge of sewage into the public wastewater treatment system.
SUSPENDED SOLIDS (SS). 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. Any devices and system for the storage, treatment, recycling and reclamation for municipal sewage, domestic sewage or liquid industrial wastes. These include domestic sewage or liquid industrial wastes. These include intercepting sewers, outfall sewers, sewage collection systems, pumping, power and other equipment and their appurtenance; 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 or 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 storm water and sanitary sewer systems.
USEFUL LIFE. The estimated period during which a treatment works will be operated.
WASTEWATER FLOW METER. A device which measures the volume of wastewater flows.
WATER METER. A water volume measuring and recording device.
(Ord. 18-95, passed 1-2-1996; Ord. 21-2004, passed 12-20-2004)