Section 501. - Definitions.
For the purposes of this chapter, the following terms, phrases, words and their derivations shall have the meaning given herein.
A. B.O.D. (biochemical oxygen demand) shall mean the quantity of oxygen expressed in milligrams per liter, 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.
B. Building drain shall mean that part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drainage pipes of the building and conveys such discharge to the building sewer, beginning five (5) feet outside the inner face of the building wall.
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 and the City's duly authorized officers or agents.
E. Director shall mean the Director of Public Works, or the person succeeding to his duties and functions by whatever name known, or his duly authorized deputy, agent or representative.
F. 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.
G. Garbage shall mean solid wastes and residue from the preparation, cooking and dispensing of food, and from the handling, storage and sale of food products and produce.
H. Industrial user or industry shall mean:
1. Any user of a 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 latest edition of Standard Industrial Classification Manual, Office of Management and Budget, as amended and supplemented, under one 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, or
Division I. | Services;
provided, however, that a user in the divisions listed shall be excluded if it is determined by the Tulsa Utility Board that it will introduce only segregated domestic wastes or wastes from sanitary conveniences;
2. Any user of a publicly owned treatment works which discharges wastewater to the 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 the 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 which is 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-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, their agents, servants or employees.
M. pH shall mean the logarithm (Base 10) of the reciprocal of the hydrogen ion concentration expressed in moles per liter. It shall be determined by one (1) of the procedures outlined in Standard Methods.
N. Premise shall mean any plot 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.
O. Properly shredded garbage shall mean the wastes from the preparation, cooking and dispensing of foods, exclusive of egg shells, bones and like objects, that have been shredded to such degree that all particles will be carried freely under the flow conditions normally prevailing in public Sanitary sewers, with no particles greater than one-half (½) inch in any dimension.
P. Public sanitary sewer shall mean:
1. All sanitary sewers, of whatever size or extent, for which the City of Tulsa is responsible for operation, repair and maintenance;
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 Title 11, Oklahoma Statutes;
3. An Assessment District Sewer, which is any sanitary sewer constructed within a legally constituted district as provided in the City Charter or Title 11, Oklahoma Statutes;
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 in the City Charter or Title 11, Oklahoma Statutes; 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 which shall be 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 Oklahoma Statutes.
Q. 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.
R. Sewer service charge shall mean the charge made on all users of the sanitary sewer system whose wastes do not exceed in strength the concentration values established in this chapter.
S. Sewer system shall mean all facilities for collecting, pumping, treating and disposing of wastewaters and shall include wastewater treatment facilities.
T. Slug shall mean any discharge of water, sewage or industrial waste, other than toxic materials, which, in concentration of any given constituent or in quantity or flow, exceeds for any period of duration longer than fifteen (15) minutes more than five (5) times the average twenty-four (24) hour concentration or flows during normal operation.
U. 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.
V. Storm water runoff shall mean that portion of the rainfall that is drained into the storm sewers.
W. Surcharge shall mean the charge in addition to the sewer service charge which is made on those persons whose wastes are greater in strength than the concentration values established as representative of normal discharges.
X. 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.
Y. Wastewater or sewage 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.
Z. Wastewater plant shall mean any City-owned facility, device and structure used for receiving and treating wastewater from the City sanitary sewer system.
AA. Act or the Act shall mean the Federal Water Pollution Control Act, also known as the Clean Water Act or 1977, as amended, 33 U.S.C. 1251, et seq.
BB. Authorized representative of industrial user may be:
1. A principal executive officer of at least the level of vice-president, if the industrial user is a corporation;
2. A general partner or proprietor if the industrial user is a partnership or proprietorship respectively; or
3. A duly authorized representative of the individual designated above if such representative is responsible for the overall operation of the facilities from which the indirect discharge originates.
CC. Code of Federal Regulations (CFR) refers to documents published by the Office of Federal Register, National Archives and Records Service, General Services Administration, codifying general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government.
DD. 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 which are representative of the discharge of the facility.
EE. Federal Categorical Pretreatment or Categorical Standard shall mean any regulation containing pollutant discharge limits promulgated by the Environmental Protection Agency in accordance with Section 307(b) and (c) of the Act (33 U.S.C. 1317) which applies to specific industrial users.
FF. Grab samples shall mean a sample which is taken from a waste stream on a one-time basis with no regard to the flow in the waste stream and without consideration of time.
GG. Interference shall mean the inhibition or disruption of the City of Tulsa treatment process or operations which contributes to a violation of any requirement of the City's NPDES Permit. The term includes prevention of sewage sludge use or disposal by the City of Tulsa in accordance with Section 405 of Act, (33 U.S.C. 1345) or any criteria, guidelines or regulations developed pursuant to the Solid Waste Disposal Act (SWDA), the Clean Water Act, the Toxic Substance Control Act or more stringent State of Oklahoma criteria (including those contained in any State of Oklahoma Sludge Management Plan prepared pursuant to Title VI of SWDA) applicable to the method of disposal or use employed by the City.
HH. Monitoring shall mean the performance of wastewater flow measurements, wastewater sampling, sample analysis and like procedures necessary to determine wastewater discharge compliance and/or to verify the flow or strength of wastewater.
II. New source shall mean any source, the construction of which is commenced after the publication of proposed regulations prescribing a Section 307(c) (33 U.S.C. 1317) Federal Categorical Pretreatment Standard which will be applicable to such source, if such standard is thereafter promulgated within one hundred twenty (120) days of proposal in the Federal Register. Where the standard is promulgated later than one hundred twenty (120) days after proposal, a new source shall mean any source the construction of which is commenced after the date of promulgation of the standard.
JJ. Operational day shall mean that period of time during a twenty-four (24) hour period during which the facility is operating and consequently discharging wastewater.
KK. Pretreatment shall mean the reduction of the amount of pollutants, the elimination of pollutants or the alteration of the nature of pollutant properties in wastewater to a less harmful state prior to or in lieu of discharging or otherwise introducing such pollutants into the public sanitary sewer. The reduction or alteration can be obtained by physical, chemical or biological processes or process changes or other means, except as prohibited herein.
