Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 5 - STATE AIR POLLUTION CONTROL BOARD › Chapter 40 - EXISTING STATIONARY SOURCES › Part II - Emission Standards › Article 18 - Emission Standards for Primary and Secondary Metal Operations (Rule 4-18) › Section 9VAC5-40-2400 - Definitions

Current through Register Vol. 40, No. 24, July 15, 2024
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.
"Aluminum production operation" means the production of
						aluminum or aluminum alloys from aluminum pigs, foundry returns or scrap
						material by smelting or melting to the metallic form. Includes fluxing,
						alloying, degassing, and demagging operations.
"Brass or bronze" means any metal alloy containing copper
						as its predominant constituent and lesser amounts of zinc, tin, lead or other
						metals.
"Brass or bronze production" means the production of
						brass or bronze ingots from scrap material by, or through a combination of,
						melting, smelting, refining or alloying.
"Ferroalloy production operation" means the production of
						any ferroalloy by use of a smelting furnace.
"Gray iron foundry operation" means the production of
						gray iron castings by use of a melting furnace.
"Lead" means elemental lead or alloys in which the
						predominant component is lead.
"Magnesium production operation" means the production of
						magnesium from scrap material by use of a furnace.
"Melt time" means the time in which the metal is melting
						and available at the spout or tap hole, excluding any time the equipment is
						idle, preheating or preparing for shutdown.
"Primary copper smelter" means any installation or any
						intermediate process engaged in the production of copper from copper sulfide
						ore concentrates through the use of pyrometallurgical techniques.
"Primary lead smelter" means any installation or any
						intermediate process engaged in the production of lead from lead sulfide ore
						concentrates through the use of pyrometallurgical techniques.
"Primary metal operation" means any operation which
						involves the production of a metal from metal ore concentrates through the use
						of pyrometallurgical techniques.
"Primary zinc smelter" means any installation or any
						intermediate process engaged in the production of zinc or zinc oxide from zinc
						sulfide ore concentrates through the use of pyrometallurgical
						techniques.
"Process operation" means any method, form, action,
						operation or treatment of manufacturing or processing, including any storage or
						handling of materials or products before, during or after manufacturing or
						processing.
"Process unit" means any step in a manufacturing or
						process operation which results in the emission of pollutants to the
						atmosphere.
"Process weight" means the total weight of all materials
						introduced into any process unit which may cause any emission of pollutants.
						Process weight includes solid fuels charged, but does not include liquid and
						gaseous fuels charged or combustion air for all fuels.
"Process weight rate" means a rate established as
						follows:
a. For continuous or long-run
					 steady-state process operations, the total process weight for the entire period
					 of continuous operation or for a typical portion of it, divided by the number
					 of hours of such period or portion of it.
b. For cyclical or batch process operations,
					 the total weight for a period that covers a complete operation or an integral
					 number of cycles, divided by the hours of actual process operation during such
					 a period.
"Secondary lead production operation" means the
						production of lead from lead bearing scrap material by smelting to the metallic
						form.
"Secondary metal operation" means any aluminum production
						operation, brass or bronze production operation, ferroalloy production
						operation, gray iron foundry operation, secondary lead production operation,
						magnesium production operation, steel foundry operation or zinc process
						operation.
"Steel foundry operation" means the production of steel
						castings by use of a melting furnace.
"Zinc process operation" means zinc reclaiming, zinc
						oxide manufacturing and zinc galvanizing.