Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0002 - Air Quality › Chapter 1 - COMMON PROVISIONS › Section 1-3 - Definitions

Current through July 13, 2024
(a) The definitions contained in the Environmental Quality
				  Act, WS
										35-11-103
et seq
., shall be
				  applicable, where appropriate. The following terms as used in these standards
				  and regulations shall, unless the context otherwise requires, have the
				  following meanings:
"Administrator"
means
				  Administrator of the Division of Air Quality, Wyoming Department of
				  Environmental Quality.
"Air contaminant"
shall mean
				  dust, fumes, mist, smoke, other particulate matter, vapor, gas or any
				  combination of the foregoing, but shall not include steam or water
				  vapor.
"Air pollution"
shall mean the
				  presence in the outdoor atmosphere of one or more air contaminants in such
				  quantities and duration as is materially injurious to human health or welfare,
				  animal or plant life or property, or unreasonably interferes with the enjoyment
				  of life or property.
"Animal matter"
shall mean any
				  product or derivative of animal life.
"Board"
shall mean the Air
				  Quality Advisory Board.
"Control equipment"
shall mean
				  any device, contrivance, or system which prevents or reduces emissions.
"Control officer"
shall mean
				  the Director of the State Department of Environmental Quality, or the
				  Administrator of the Air Quality Division, or any employee of the Division
				  designated by the Administrator, or any local health officer or employee
				  designated by the Administrator.
"Council"
shall mean the
				  Environmental Quality Council.
"Department"
shall mean the
				  Wyoming Department of Environmental Quality.
"Director"
shall mean the
				  Director of the Wyoming Department of Environmental Quality.
"Division"
shall mean the Air
				  Quality Division, Wyoming Department of Environmental Quality.
"Emission"
shall mean a release
				  into the outdoor atmosphere of air contaminants.
"Equivalent method"
shall mean
				  any procedure, practice, policy, system or device which can be demonstrated to
				  produce a result adequate for the purpose required in these regulations and
				  consistent with specified reference methods.
"Existing equipment"
shall mean
				  equipment installed prior to the effective date of an applicable
				  regulation.
"Existing source"
means any
				  stationary or portable source other than a new source.
"Facility"
shall mean any
				  property, real or personal, which may incorporate one or more sources of air
				  pollution and shall include but not be limited to processing plants,
				  manufacturing plants, power generator plants, refining plants, mining
				  operations, lumber mills, ore processing plants, construction material
				  processing operations, etc.
"Fuel burning equipment"
shall
				  mean any furnace, boiler apparatus, stack, or appurtenances thereto used in the
				  process of burning fuel or other combustible material for the purpose of
				  producing heat or power by indirect heat transfer.
"Fugitive emissions"
means
				  those emissions which could not reasonably pass through a stack, chimney, vent,
				  or other functionally equivalent opening.
"Greenhouse gases (GHGs)"
means
				  the air pollutant defined as the aggregate group of six greenhouse gases:
				  carbon dioxide, nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons,
				  and sulfur hexafluoride.
"Incinerator"
shall mean any
				  equipment, device or contrivance used for the destruction of garbage, rubbish
				  or other wastes by burning, but not wood wastes burned in devices commonly
				  called tepee burners, silos, truncated cones, wigwam burners and other such
				  burners used commonly by the wood products industry.
"Initial start-up"
shall mean
				  that point in time when a source or group of sources actually begins operation
				  for the purpose of generating goods or services as an end product or as an
				  intermediate product. Start-up of a source to check functional operation of the
				  "machinery" shall not be construed as initial start-up.
"Installation"
shall mean any
				  property, real or personal, including but not limited to processing equipment,
				  manufacturing equipment, fuel burning equipment, incinerators, or any other
				  equipment, or construction, capable of creating or causing emissions.
"Maximum design production
				  rate"
shall mean the maximum production rate at which a source
				  is designed for continuous or batch operation.
"Modification"
shall mean any
				  physical change in, or change in the method of operation of, an affected
				  facility which increases the amount of any air pollutant (to which any state
				  standards applies) emitted by such facility or which results in the emission of
				  any such air pollutant not previously emitted.
"Motor vehicle"
shall mean
				  those vehicles carrying people or goods on public streets or highways.
"Multiple chamber incinerator"
shall mean any article, machine, equipment, contrivance, structure or part of a
				  structure used to dispose of combustible refuse by burning, consisting of two
				  or more combustion furnaces in series physically separated by walls,
				  interconnected by gas passage ports or ducts and employing adequate parameters
				  necessary for maximum combustion of the material to be burned.
"New equipment"
shall
				  mean:
(i) Any equipment, installation, construction article,
				  machine or contrivance ordered, constructed or installed after the effective
				  date of an applicable regulation;
(ii) Any equipment replaced or altered or processes changed
				  in such a manner after the effective date of an applicable regulation as to
				  have an effect of increasing the production of air contaminants;
(iii) Any equipment moved after the effective date of this
				  regulation to another premise involving a change of address when said move will
				  cause or would be expected to cause an increase in the production of air
				  contaminants;
(iv) Any equipment purchased and to be operated after the
				  effective date of this regulation by a new owner or when a new lessee desires
				  to operate such equipment.
"New source"
shall mean any
				  stationary or portable source, the construction or modification of which is
				  commenced after the effective date of regulations prescribing a standard of
				  performance applicable to such source.
"Odor"
shall mean that property
				  of an emission which stimulates the sense of smell.
"Opacity"
means the degree to
				  which emissions reduce the transmission of light and obscure the view of an
				  object in the background. For continuous opacity monitoring systems, opacity
				  means the fraction of incident light that is attenuated by an optical
				  medium.
"Operating day"
shall mean a
				  fixed 24-hour period during which fossil fuel is combusted by fuel-burning
				  equipment for at least 18 hours.
"Owner or operator"
shall mean
				  any person who owns, leases, operates, controls, or supervises a facility,
				  building, structure, or installation which directly or indirectly result or may
				  result in emissions of any air contaminant.
"Particulate matter":
(i) "Particulate matter" shall mean any airborne finely
				  divided solid or liquid material with an aerodynamic diameter smaller than 100
				  micrometers.
(ii) "Particulate matter emissions" shall mean all finely
				  divided solid or liquid material, other than uncombined water, emitted to the
				  ambient air as measured by applicable reference methods, specified in 40 CFR
				  part 60, Appendix A, or an equivalent or alternative method approved by the EPA
				  Administrator.
(iii) "PM10" shall mean particulate
				  matter with an aerodynamic diameter less than or equal to a nominal 10
				  micrometers as measured by a reference method based on Appendix J of 40 CFR
				  part 50, and designated in accordance with 40 CFR part 53.
(iv) "PM10 emissions" shall mean
				  finely divided solid or liquid material, with an aerodynamic diameter less than
				  or equal to a nominal 10 micrometers emitted to the ambient air as measured by
				  an applicable reference method, or an equivalent or alternate method approved
				  by the EPA Administrator.
(v) "Total suspended particulates (TSP)" shall mean
				  particulate matter as measured by the method described in Appendix B to 40 CFR
				  part 50.
(vi) "PM2.5" shall mean particulate
				  matter with an aerodynamic diameter less than or equal to a nominal 2.5
				  micrometers as measured by a reference method based on Appendix L of 40 CFR
				  part 50, and designated in accordance with 40 CFR part 53.
(vii) "PM2.5 emissions" shall mean
				  finely divided solid or liquid material, with an aerodynamic diameter less than
				  or equal to a nominal 2.5 micrometers emitted to the ambient air as measured by
				  an applicable reference method, or an equivalent or alternate method approved
				  by the EPA Administrator.
"Person"
means any individual,
				  partnership, firm, association, municipality, public or private corporation,
				  sub-division or agency of the state, trust, estate or any other legal
				  entity.
"Premises"
shall mean any
				  property, piece of land or real estate or building.
"Process weight"
shall mean the
				  total weight of all materials introduced into any specific process which may
				  cause emissions. Solid fuels charged will be considered as part of the process
				  weight but liquids and gaseous fuels, combustion air, and water will not.
				  However, water included as part of the normal charge to a beet pulp dryer
				  process shall be considered as part of the process weight.
"Reduction"
shall mean any
				  heated process, including rendering, cooking, drying, dehydrating, digesting,
				  evaporating, and protein concentrating.
"Salvage operation"
shall mean
				  any operation conducted in whole or in part for the salvaging or reclaiming of
				  any product or material.
"Source"
shall mean any
				  property, real or personal, or person contributing to air pollution.
"Stack or chimney"
shall mean
				  any flue, conduit or duct arranged to conduct emissions.
"Standard conditions"
shall
				  mean a temperature of 68° Fahrenheit and pressure reduced to 29.92 inches
				  of mercury at sea level.
"Trade wastes"
shall mean
				  solid, liquid, or gaseous material resulting from construction or the
				  prosecution of any business, trade or industry, or any demolition operation
				  including but not limited to wood, plastics, cartons, grease, oil, chemicals
				  and cinders.
"Wood waste burners"
shall mean
				  devices commonly called tepee burners, silos, truncated cones, wigwam burners,
				  and other such burners commonly used by the wood product industry for the
				  disposal by burning of wood wastes.