Section 701. - Definitions.
For the purposes of this chapter, the following terms, phrases, words and their derivations shall have the meanings given herein.
A. Base use shall mean either:
1. The actual water use for the period to be billed; or
2. Where the user has established water service for the premises during the prior sixty (60) billing periods and the user is not an industrial user, the average monthly gallons of water billed to the user for either the previous billing periods ending in December, January and February, or the prior sixty (60) billing periods, whichever is lower. Fractional parts of the billing period shall not be considered.
B. B.O.D. (biochemical oxygen demand) shall mean the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory conditions for five (5) days at a temperature of twenty degrees (20°) centigrade. The laboratory determinations of B.O.D. shall be made in accordance with procedures set forth in Standard Methods.
C. Building sewer, house sewer or house sewer line shall mean the extension from the building drain to the sanitary sewer or other place of disposal.
D. City shall mean the City of Tulsa, Oklahoma, a municipal corporation, acting through the Tulsa Utility Board ("Utility Board") and the City's duly authorized officers or agents.
E. C.O.D. (chemical oxygen demand) shall mean a measure of oxygen use equivalent to the portion of organic matter that is susceptible to oxidation by a strong chemical oxidizing agent utilizing procedures approved by 40 CFR 136.
F. Director shall mean the Director of Public Works or the person succeeding to his duties and functions by whatever name known and his duly authorized deputy, agent or representative.
G. Domestic sewage shall mean water-carried wastes normally discharging into the sanitary sewers of dwellings (including apartment houses and hotels), office buildings, factories and institutions, free from storm surface water and industrial wastes.
H. Industrial user shall mean:
1. Any user of publicly owned treatment works which discharges more than the equivalent of twenty-five thousand (25,000) gallons per day (gpd) of sanitary wastes and which is identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented, under one (1) of the following divisions:
Division A. | Agriculture, Forestry and Fishing
Division B. | Mining
Division D. | Manufacturing
Division E. | Transportation, Communications, Electric, Gas and Sanitary Services
Division I. | Services;
provided, however, that a user in the divisions listed shall be excluded if it is determined by the Utility Board that such user will introduce only segregated domestic wastes or wastes from sanitary conveniences;
2. Any user of a publicly owned treatment works which discharges wastewater to such treatment works which contains toxic pollutants or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to contaminate the sludge of any municipal systems, or to interfere with any sewage treatment process, or which constitutes a hazard to humans or animals, creates a public nuisance or creates any hazard in or has an adverse effect on the waters receiving any discharge from such treatment works; and
3. Any user for which Federal Categorical Standards apply.
I. Industrial waste shall mean all water-carried solids, liquids and gaseous wastes resulting from any industrial, manufacturing or food processing operation or process, or from the development of any natural resource, or any mixture of these with water or domestic sewage, and distinct from normal domestic sewage.
J. Milligrams per liter (mg/l) shall mean a weight to volume ratio. The milligrams per liter value multiplied by the factor 8.34 shall be equivalent to pounds per million gallons of water.
K. Normal domestic sewage shall mean sewage of the City of Tulsa in which the average concentration of suspended materials and five (5) -day B.O.D. is established at two hundred fifty milligrams per liter (250 mg/l).
L. Person, establishment or owner shall mean any individual, firm, company, association, society, corporation, partnership or group, or their agents, servants or employees.
M. Premise shall mean any plat or tract of ground, regardless of size or plat, under individual ownership and/or individual use and occupancy where the water service is metered independently of any other use.
N. Public sanitary sewer shall include the following:
1. All sanitary sewers, of whatever size or extent, the operation, repair and maintenance of which the City of Tulsa is responsible;
2. Any sanitary sewer, of whatever size or extent, the construction cost of which has been paid from public funds in accordance with the City Charter or the statutes of the State of Oklahoma;
3. An assessment district sewer, which is any sanitary sewer constructed within a legally constituted district as provided under the City Charter or the statutes of the State of Oklahoma;
4. A nonassessment district sewer, which is any sanitary sewer constructed within a legally constituted district as provided by special ordinance wherein the property owners petition to construct same by cash, as provided under the City Charter or the statutes of the State of Oklahoma; and
5. An outside sewer district, which is any system of one (1) or more sanitary sewers, other than house sewers, constructed outside the corporate limits of the City of Tulsa, and connected to the sewerage system of the City of Tulsa. The physical boundaries of the outside sewer district shall be as established and defined by legal description, setting forth the actual tracts of land served thereby, whether platted or unplatted. Upon annexation to the City of Tulsa, such tracts of land as described shall be exempt from subsequent assessment for sanitary sewer construction, except as may be provided by the City Charter or the statutes of the State of Oklahoma.
O. Sanitary sewer shall mean a sewer that conveys sewage or wastewater, and into which storm, surface and ground waters or unpolluted industrial wastes are not intentionally admitted.
P. Sanitary sewer service available shall mean that a public sanitary sewer is adjacent to or abuts a premise.
Q. Sewer service charge shall mean the charge made on all users of the sanitary sewer system who are not industrial users and whose wastes do not exceed in strength the concentration values established in this title.
R. Industrial user waste charge shall mean the charge made on all industrial users of the sanitary sewer system.
S. Sewer system shall mean all facilities for collecting, pumping, treating and disposing of wastewaters and shall include the wastewater treatment facilities.
T. Standard Methods shall mean the examination and analytical procedures set forth in the latest edition at the time of analysis of Standard Methods for the Examination of Water and Wastewater as prepared, approved and published jointly by the American Water Works Association, the American Public Health Association, and the Water Pollution Control Federation.
U. Suspended solids shall mean solids that either float on the surface of, or are in suspension in water, sewage or other liquids, and which are removable by a laboratory filtration device. Quantitative determination of suspended solids shall be made in accordance with procedures set forth in Standard Methods.
V. User or sanitary sewer user shall mean any person, establishment or owner who discharges any domestic sewage or industrial waste into the sanitary sewer system of the City or into any sanitary sewer system connected thereto which ultimately reaches and discharges into the sanitary sewer system of the City.
W. User charge shall mean a charge levied on users of treatment works for the cost of improvements, extensions, operation, maintenance and replacement of such works.
X. Wastewater shall mean a combination of the water-carried waste from residences, business establishments, institutions and industrial establishments, together with such ground, surface and storm water as may be present.
Y. Wastewater plant shall mean any device or structure used for receiving and testing wastewater from the City sanitary sewer system.
Z. Operational day shall mean that period of time during a twenty-four (24) hour period during which a facility is operating and consequently discharging wastewater.
AA. Composite sample shall mean a sample of wastewater composed of samples collected at equal intervals, not exceeding one (1) hour, throughout the operational day of a user, and representative of the discharge of the facility.
BB. Monitoring shall mean the performance of procedures (wastewater flow measurements, wastewater sampling, sample analysis, etc.) necessary to determine wastewater discharge compliance and/or to verify the flow and/or the strength of wastewater.
(Ord. Nos. 18721, 21584; Ord. No. 22698, § 1, 6-14-2012, eff. 10-1-2012)