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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 40. Existing Stationary Sources
12/11/2023

9VAC5-40-1350. Definitions.

A. For the purpose of these regulations and subsequent amendments or any orders issued by the board, the words or terms shall have the meanings given them in subsection C of this section.

B. As used in this article, all terms not defined here shall have the meanings given them in 9VAC5 Chapter 10 (9VAC5-10-10 et seq.), unless otherwise required by context.

C. Terms defined.

"Condensate" means a hydrocarbon liquid separated from natural gas which condenses due to changes in the temperature or pressure or both and remains liquid at standard conditions.

"Crude oil" means a naturally occurring mixture which consists of any combination of hydrocarbons, sulfur, nitrogen or oxygen derivatives of hydrocarbons and which is a liquid at standard conditions.

"Firebox" means the chamber or compartment of a boiler or furnace in which materials are burned, but does not mean the combustion chamber of an incinerator.

"Gasoline" means any petroleum distillate having a Reid vapor pressure of four pounds per square inch or greater.

"Hot well" means the reservoir of a condensing unit receiving the warm condensate from the condenser.

"Petroleum liquids" means crude oil, condensate, and any finished or intermediate products manufactured or extracted in a petroleum refinery.

"Petroleum refinery" means any facility engaged in producing gasoline, kerosene, distillate fuel oils, residual fuel oils, lubricants or other products through distillation of petroleum or through redistillation, cracking, rearrangement or reforming of unfinished petroleum derivatives.

"Petroleum refinery component" means any petroleum refinery component that could potentially leak volatile organic compounds to the atmosphere. Such components include, but are not limited to, pump seals, compressor seals, seal oil degassing vents, pipeline valves, flanges and other connections, pressure relief devices process drains and open ended pipes.

"Refinery fuel gas" means any gas which is generated by a petroleum refinery process unit and which is combusted, including any gaseous mixture of natural gas and fuel gas.

"Turnaround" means the procedure of shutting a refinery unit down after a run to do necessary maintenance and repair work and putting the unit back on stream.

"Vacuum producing system" means any reciprocating, rotary or centrifugal blower or compressor, or any jet ejector or device that takes suction from a pressure below atmospheric and discharges against atmospheric pressure.

"Wastewater separator" means any single or multiple compartment equipment which is designed to physically separate and remove any volatile organic compound floating on or entrained or contained in water entering such equipment from such water prior to outfall, drainage or recovery of such water.

Statutory Authority

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia.

Historical Notes

Derived from VR120-04-1102, eff. July 1, 1991.

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