Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 621 - Non-Industrial Discharging and Public Water Supply Lagoons › Subchapter 1 - General Provisions › Section 252:621-1-2 - Definitions

Current through Vol. 41, No. 20, July 1, 2024
The following words and terms, when used in this Chapter,
				  shall have the following meaning, unless the context clearly indicates
				  otherwise:
"Artificial membrane liner"
means a manufactured
				  liner material composed of plastics, resins or other flexible materials, which
				  is designed and manufactured to be used to control the seepage or release of
				  waste or wastewater through the liner material.
"Berm"
means a man-made barrier designed to
				  control wastewater and/or stormwater.
"Biosolids"
means primarily organically treated
				  wastewater materials from municipal wastewater treatment plants that are
				  suitable for recycling as amendments. This term is within the meaning of
				  "sludge" referenced in 27A O.S. § 2-6-101(11). Biosolids are divided into
				  the following classes:
(A) Class A
				Biosolids meets the pathogen reduction requirements of
				40 CFR §
										503.32(a);
(B) Class B Biosolids meets the pathogen
				reduction requirements of 40
				CFR §
										503.32(b).
"Board"
means the Environmental Quality
				  Board.
"Bypass"
means the intentional diversion of
				  waste streams from any portion of a treatment facility.
"Cell"
means a single wastewater lagoon or a
				  part of a multiple wastewater lagoon system that shares a dike with another
				  lagoon area.
"DEQ"
means the Oklahoma Department of
				  Environmental Quality.
"Detention time"
means the theoretical time
				  required to displace the contents of a tank or treatment unit at a given rate
				  of flow (volume divided by rate of flow). Also called "retention time".
"Dike"
or
"Embankment"
means a
				  bank, usually composed of earth, which is constructed to control or confine
				  wastewater within a lagoon.
"Discharge"
means any release by leaking,
				  pumping, pouring, emitting, emptying, dumping, escaping, seeping, leaching or
				  other means of release of wastes or wastewater into any waters of the state or
				  into or on any location where they may enter waters of the state.
"Discharge point"
or
"outfall"
means the point at which wastes or wastewater enters waters of the state or
				  become waters of the state.
"Discharging lagoon"
means any lagoon which has
				  a permitted point source discharge to "waters of the state".
"Engineer"
means a person who designed the
				  sewage or wastewater treatment works and who conceived, developed, executed or
				  supervised the preparation of the plan documents. Said person shall be licensed
				  in the State of Oklahoma to practice engineering and shall be a registered
				  professional engineer or a firm holding a valid certificate of authorization
				  from the Oklahoma Board of Registration for Professional Engineers and Land
				  Surveyors.
"EPA"
means the United States Environmental
				  Protection Agency.
"Executive Director"
or
"Director"
means the Executive Director of the Department of Environmental Quality.
"Freeboard"
means the vertical distance from the
				  surface water level in the lagoon to a point which is even with the top of the
				  dike.
"Holding capacity"
means the volume of space in
				  a lagoon which is calculated assuming a minimum freeboard of three (3) feet, or
				  calculated by the freeboard specified in a permit issued or specific directive
				  given by the Department.
"Lagoon"
means a lined basin, whether with soil
				  or with other DEQ approved material, either below or above ground level which
				  is designed, maintained and/or operated to store, recycle, treat and/or dispose
				  of municipal/domestic wastewater or stormwater, and shall include but is not
				  limited to man-made topographic depressions, excavations, basins, diked areas,
				  impoundments, pits and ponds.
"Land application"
means the application of
				  treated wastewater to a vegetated land surface with the applied wastewater
				  being further treated as it flows through the plant-soil matrix.
"Liner"
means a barrier which is designed,
				  constructed and installed in a lagoon and which has appropriate chemical and
				  physical properties to ensure that such structures do not fail to control the
				  seepage or release of waste and wastewater from the lagoon.
"Mean"
means the calculated arithmetic average
				  of a set of numerical data.
"NRCS"
means the Natural Resource Conservation
				  Service.
" OAC"
means Oklahoma Administrative
				  Code.
"Oklahoma's Water Quality Standards"
means the
				  rules promulgated by the DEQ and contained in OAC 252:730 which classify waters
				  of the state, designate beneficial uses for which the various waters of the
				  State shall be maintained and protected, and prescribe the water quality
				  standards required to sustain designated uses.
"Operator"
means the person responsible for the
				  maintenance and operation of a wastewater treatment system or wastewater
				  treatment works and responsible for keeping any required records and providing
				  reports to the Department.
"Person"
means any individual, company,
				  corporation, government agency, municipality, or any other entity whatsoever.
"Point source"
shall have the meaning assigned
				  to that term in OAC 252:690.
"Receiving water"
means that portion of any
				  waters of the state into which wastes are or may be released, leached, or
				  discharged. See also definition of "waters of the state".
"Sanitary wastewater"
means and includes but is
				  not limited to wastewater from drinking fountains, showers, toilets,
				  lavatories, and kitchens.
"Septic"
means bacterial activity in the absence
				  of oxygen. This condition may cause enhancement of the growth of anaerobic
				  bacteria and production of unpleasant odors.
"Total retention lagoon"
means a lagoon designed
				  and constructed to contain all wastewater without a discharge structure, in any
				  and all types of weather conditions.
"Toxic substances"
means substances regulated by
				  the Department to protect beneficial uses of waters of the state, human health,
				  or the environment.
Added at 18 Ok Reg 1576,
				  eff 6-1-01; Amended at 28 Ok Reg 1267, eff
				  7-1-11