West Virginia Code of State Rules › Agency 45 - Air Quality › Title 45 - LEGISLATIVE RULE DEPARTMENT OF ENVIRONMENTAL PROTECTION AIR QUALITY › Series 45-21 - Regulation to Prevent and Control Air Pollution from the Emission of Volatile Organic Compounds › Section 45-21-2 - Definitions

Current through Register Vol. XLI, No. 28, July 12, 2024
2.1. "Actual
				emissions" means the quantity of volatile organic compounds (VOCs) emitted from
				a source during a particular time period.
2.2. "Air pollution", "statutory air
				pollution" shall have the meaning ascribed to it in W. Va. Code §
									22-5-2.
2.3. "Alternative Emission Limitation" means
				an emission limitation that applies to a source during some but not all periods
				of normal operation (e.g., applies only during a specifically defined mode of
				operation such as startup or shutdown). An alternative emission limitation is a
				component of a continuously applicable emission limitation, and it may take the
				form of a control measure such as a design, equipment, work practice or
				operational standard (whether or not numerical).
2.4. "Ambient air" means that portion of the
				atmosphere, external to buildings, to which the general public has
				access.
2.5. "As applied" means
				including dilution solvents added before application of the coating.
2.6. "ASTM" means American Society for
				Testing And Materials.
2.7. "Bulk
				gasoline plant" means a gasoline storage and distribution facility with an
				average daily throughput of 76,000 liters (L) (20,000 gallons [gal]) of
				gasoline or less on a 30-day rolling average.
2.8. "Bulk gasoline terminal" means a
				gasoline storage facility that receives gasoline from refineries, delivers
				gasoline to bulk gasoline plants or to commercial or retail accounts, and has a
				daily throughput of more than 76,000 liters (20,000 gallons) of gasoline on a
				30-day rolling average.
2.9.
				"Capture efficiency" means the weight per unit time of VOC entering a capture
				system and delivered to a control device divided by the weight per unit time of
				total VOC generated by a source of VOC, expressed as a percentage.
2.10. "Capture system" means all equipment
				(including, but not limited to, hoods, ducts, fans, booths, ovens, dryers,
				etc.) that contains, collects, and transports an air pollutant to a control
				device.
2.11. "Carbon adsorber"
				means an add-on control device which uses activated carbon to adsorb volatile
				organic compounds from a gas stream.
2.12. "Carbon adsorption system" means a
				carbon adsorber with an inlet and outlet for exhaust gases and a system to
				regenerate the saturated adsorbent.
2.13. "Coating" means a material applied onto
				or impregnated into a substrate for protective, decorative, or functional
				purposes. Such materials include, but are not limited to, paints, varnishes,
				sealants, adhesives, inks, maskants, and temporary protective
				coatings.
2.14. "Coating line"
				means a series of one or more coating applicators and any associated drying
				area and/or oven wherein a coating is applied, dried, and/or cured. A coating
				line ends at the point where the coating is dried or cured, or prior to any
				subsequent application of a different coating. It is not necessary to have an
				oven or a flashoff area in order to be included in this definition. This
				definition does not apply to web coating.
2.15. [RESERVED]
2.16. "Condensate" means volatile organic
				compound (VOC) liquid separated from natural gas, that condenses due to changes
				in the temperature and/or pressure and remains liquid at standard
				conditions.
2.17. "Condenser" means
				any heat transfer device used to liquify vapors by removing their latent heats
				of vaporization. Such devices include, but are not limited to, shell and tube,
				coil, surface, or contact condensers.
2.18. "Construction" means on-site
				fabrication, erection, or installation of a source, air pollution control or
				monitoring equipment, or a facility.
2.19. "Continuous vapor control system" means
				a vapor control system that treats vapors displaced from tanks during filling
				on a demand basis without intermediate accumulation.
2.20. "Control device" means equipment (such
				as an incinerator or carbon adsorber) used to reduce, by destruction or
				removal, the amount of air pollutant(s) in an air stream prior to discharge to
				the ambient air.
2.21. "Control
				system" means a combination of one or more capture system(s) and control
				device(s) working in concert to reduce discharges of pollutants to the ambient
				air.
2.22. "Crude oil" means a
				naturally occurring mixture that consists of hydrocarbons and/or sulfur,
				nitrogen, and/or oxygen derivatives of hydrocarbons and that is liquid at
				standard conditions.
2.23. "Day"
				means a period of 24 consecutive hours beginning at midnight local time, or
				beginning at a time consistent with a facility's operating schedule.
2.24. "Destruction or removal efficiency"
				means the amount of VOC destroyed or removed by a control device expressed as a
				percent of the total amount of VOC entering the device.
2.25. "Double block-and-bleed system" means
				two block valves connected in series with a bleed valve or line that can vent
				the line between the two block valves.
2.26. "Emission" means the release or
				discharge, whether directly or indirectly, of volatile organic compounds into
				the ambient air.
2.27. "Excess
				emissions" means those emissions in excess of any requirement, standard, or
				numerical emission limit specified in this regulation.
2.28. "External floating roof" means a cover
				over an open-top storage tank consisting of a double deck or pontoon single
				deck that rests upon and is supported by the volatile organic liquid being
				contained and is equipped with a closure seal or seals to close the space
				between the roof edge and tank shell.
2.29. "Facility" means all of the
				pollutant-emitting activities that are located on one or more contiguous or
				adjacent properties, and are under the control of the same person (or person
				under common control).
2.30. "First
				attempt at repair" means to take rapid action for the purpose of stopping or
				reducing leakage of volatile organic compounds to the atmosphere using best
				practices.
2.31. "Flashoff area"
				means the space between the coating application area and the oven.
2.32. "Gasoline" means any petroleum
				distillate or petroleum distillate/alcohol blend having a Reid vapor pressure
				of 27.6 kiloPascals (kPa) (8.15 inches of Mercury [in Hg]) or greater that is
				used as a fuel for internal combustion engines.
2.33. "Gasoline dispensing facility" means
				any site where gasoline is transferred from a stationary storage tank to a
				motor vehicle gasoline tank used to provide fuel to the engine of that motor
				vehicle.
2.34. "Gasoline tank
				truck" means any truck or trailer equipped with a storage tank that is used for
				the transport of gasoline or vapor from a source of supply to a stationary
				storage tank at a gasoline dispensing facility, bulk gasoline plant, or bulk
				gasoline terminal.
2.35.
				"Incinerator" means a combustion apparatus in which solid, semisolid, liquid,
				or gaseous combustible wastes are ignited and burned and from which the solid
				and gaseous residues contain little or no combustible material.
2.36. "Intermittent vapor control system"
				means a vapor control system that employs an intermediate vapor holder to
				accumulate vapors displaced from tanks during filling. The control device
				treats the accumulated vapors only during automatically controlled
				cycles.
2.37. "Knife coating" means
				the application of a coating material to a substrate by means of drawing the
				substrate beneath a knife that spreads the coating evenly over the full width
				of the substrate.
2.38. "Leak"
				means a VOC emission indicated by an instrument calibrated according to Method
				21 of 40 CFR Part 60, Appendix A using zero air (less than 10 parts per million
				[ppm] of hydrocarbon in air) and a mixture of methane or n-hexane and air at a
				concentration of approximately, but less than, 10,000 ppm methane or
				n-hexane.
2.39. "Lease custody
				transfer" means the transfer of produced crude oil or condensate, after
				processing and/or treating in the producing operations, from storage tanks or
				automatic transfer facilities to pipelines or any other forms of
				transportation.
2.40. "Loading
				rack" means an aggregation or combination of gasoline loading equipment
				arranged so that all loading outlets in the combination can be connected to a
				tank truck or trailer parked in a specified loading space.
2.41. "Lower explosive limit" (also denoted
				as LEL) means the concentration of a compound in air below which a flame will
				not propagate if the mixture is ignited.
2.42. "Malfunction" means a sudden and
				unavoidable breakdown of process or control equipment.
2.43. "Maximum theoretical emissions" means
				the quantity of VOC that theoretically could be emitted by a source without
				control devices based on the design capacity or maximum production capacity of
				the source and 8,760 hours of operation per year. The design capacity or
				maximum production capacity includes use of coatings with the highest VOC
				content used in practice by the source for the two preceding years.
2.44. "Maximum true vapor pressure" means the
				equilibrium partial pressure exerted by a stored liquid at the temperature
				equal to:
(1) for liquids stored above or
				below the ambient temperature, the highest calendar-month average of the liquid
				storage temperature, or
(2) for
				liquids stored at the ambient temperature, the local maximum monthly average
				temperature as reported by the National Weather Service. This pressure shall be
				determined:
2.44.1. In accordance with methods
				described in American Petroleum Institute Bulletin 2517, "Evaporation Loss From
				External Floating Roof Tanks";
2.44.2. By using standard reference
				texts;
2.44.3. By ASTM D2879-83;
				or
2.44.4. By any other method
				approved by the U.S. EPA.