Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 5 - STATE AIR POLLUTION CONTROL BOARD › Chapter 10 - GENERAL DEFINITIONS › Section 9VAC5-10-20 - Terms defined

Current through Register Vol. 40, No. 24, July 15, 2024
"Actual emissions rate" means the actual rate of emissions of
				  a pollutant from an emissions unit. In general actual emissions shall equal the
				  average rate, in tons per year, at which the unit actually emitted the
				  pollutant during the most recent two-year period or some other two-year period
				  which is representative of normal source operation. If the board determines
				  that no two-year period is representative of normal source operation, the board
				  shall allow the use of an alternative period of time upon a determination by
				  the board that it is more representative of normal source operation. Actual
				  emissions shall be calculated using the unit's actual operating hours,
				  production rates, and types of materials processed, stored, or combusted during
				  the selected time period.
"Administrator" means the administrator of the U.S.
				  Environmental Protection Agency (EPA) or his authorized representative.
"Affected facility" means, with reference to a stationary
				  source, any part, equipment, facility, installation, apparatus, process or
				  operation to which an emission standard is applicable or any other facility so
				  designated. The term "affected facility" includes any affected source as
				  defined in 40 CFR
				  63.2.
"Air pollution" means the presence in the outdoor atmosphere
				  of one or more substances which are or may be harmful or injurious to human
				  health, welfare or safety; to animal or plant life; or to property; or which
				  unreasonably interfere with the enjoyment by the people of life or
				  property.
"Air quality" means the specific measurement in the ambient
				  air of a particular air pollutant at any given time.
"Air quality control region" means any area designated as
				  such in 9VAC5-20-200.
"Alternative method" means any method of sampling and
				  analyzing for an air pollutant which is not a reference or equivalent method,
				  but which has been demonstrated to the satisfaction of the board, in specific
				  cases, to produce results adequate for its determination of compliance.
"Ambient air" means that portion of the atmosphere, external
				  to buildings, to which the general public has access.
"Ambient air quality standard" means any primary or secondary
				  standard designated as such in 9VAC5-30 (Ambient Air Quality Standards).
"Board" means the State Air Pollution Control Board or its
				  designated representative. When used outside the context of the promulgation of
				  regulations, including regulations to establish general permits, pursuant to
				  this chapter,"board" means the Department of Environmental Quality.
"Certified mail" means electronically certified or postal
				  certified mail, except that this definition shall only apply to the mailing of
				  plan approvals, permits, or certificates issued under the provisions of these
				  regulations and only where the recipient has notified the department of the
				  recipient's consent to receive plan approvals, permits, or certificates by
				  electronic mail. Any provision of these regulations requiring the use of
				  certified mail to transmit special orders or administrative orders pursuant to
				  enforcement proceedings shall mean postal certified mail.
"Class I area" means any prevention of significant
				  deterioration area (i) in which virtually any deterioration of existing air
				  quality is considered significant and (ii) designated as such in
				  9VAC5-20-205.
"Class II area" means any prevention of significant
				  deterioration area (i) in which any deterioration of existing air quality
				  beyond that normally accompanying well-controlled growth is considered
				  significant and (ii) designated as such in
				  9VAC5-20-205.
"Class III area" means any prevention of significant
				  deterioration area (i) in which deterioration of existing air quality to the
				  levels of the ambient air quality standards is permitted and (ii) designated as
				  such in 9VAC5-20-205.
"Continuous monitoring system" means the total equipment used
				  to sample and condition (if applicable), to analyze, and to provide a permanent
				  continuous record of emissions or process parameters.
"Control program" means a plan formulated by the owner of a
				  stationary source to establish pollution abatement goals, including a
				  compliance schedule to achieve such goals. The plan may be submitted
				  voluntarily, or upon request or by order of the board, to ensure compliance by
				  the owner with standards, policies and regulations adopted by the board. The
				  plan shall include system and equipment information and operating performance
				  projections as required by the board for evaluating the probability of
				  achievement. A control program shall contain the following increments of
				  progress:
1. The date by which
				contracts for emission control system or process modifications are to be
				awarded, or the date by which orders are to be issued for the purchase of
				component parts to accomplish emission control or process
				modification.
2. The date by which
				the on-site construction or installation of emission control equipment or
				process change is to be initiated.
3. The date by which the on-site construction
				or installation of emission control equipment or process modification is to be
				completed.
4. The date by which
				final compliance is to be achieved.
"Criteria pollutant" means any pollutant for which an ambient
				  air quality standard is established under 9VAC5-30 (Ambient Air Quality
				  Standards).
"Day" means a 24-hour period beginning at midnight.
"Delayed compliance order" means any order of the board
				  issued after an appropriate hearing to an owner which postpones the date by
				  which a stationary source is required to comply with any requirement contained
				  in the applicable implementation plan.
"Department" means any employee or other representative of
				  the Virginia Department of Environmental Quality, as designated by the
				  director.
"Director" or "executive director" means the director of the
				  Virginia Department of Environmental Quality or a designated
				  representative.
"Dispersion technique"
1. Means any technique which attempts to
				affect the concentration of a pollutant in the ambient air by:
a. Using that portion of a stack which
				exceeds good engineering practice stack height;
b. Varying the rate of emission of a
				pollutant according to atmospheric conditions or ambient concentrations of that
				pollutant; or
c. Increasing final
				exhaust gas plume rise by manipulating source process parameters, exhaust gas
				parameters, stack parameters, or combining exhaust gases from several existing
				stacks into one stack; or other selective handling of exhaust gas streams so as
				to increase the exhaust gas plume rise.