West Virginia Code of State Rules › Agency 45 - Air Quality › Title 45 - LEGISLATIVE RULE DEPARTMENT OF ENVIRONMENTAL PROTECTION AIR QUALITY › Series 45-07 - To Prevent And Control Particulate Matter Air Pollution from Manufacturing Processes And Associated Operations › Section 45-7-4 - Control and Prohibition of Particulate Emissions by Weight from Manufacturing Process Source Operations

Current through Register Vol. XLI, No. 28, July 12, 2024
4.1. No person
				shall cause, suffer, allow or permit particulate matter to be vented into the
				open air from any type source operation or duplicate source operation, or from
				all air pollution control equipment installed on any type source operation or
				duplicate source operation in excess of the quantity specified under the
				appropriate source operation type in Table 45-7A found at the end of this
				rule.
4.2. Mineral acids shall not
				be released from any type source operation or duplicate source operation or
				from all air pollution control equipment installed on any type source operation
				or duplicate source operation in excess of the quantity given in Table 45-7B
				found at the end of this rule.
4.3.
				No person shall circumvent the provisions of this rule by adding additional gas
				to any exhaust or group of exhausts for the purpose of reducing the stack gas
				concentration.
4.4. If a duplicate
				source operation that meets the requirements of this rule is expanded or if a
				source operation that meets the requirements of this rule is expanded to form a
				duplicate source operation, the total allowable emission rate for the expanded
				portion shall be determined by the following formula:
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Where:
Re is the total allowable emission
				  rate in pounds per hour for the new expanded portion of the duplicate source
				  operation;
Wet is the total operating process
				  weight rate in pounds per hour of the source operation or duplicate source
				  operation prior to expansion plus the operating process weight rate of the new
				  expanded portion;
Ret is allowable emission rate in
				  pounds per hour found in subsection 4.1 opposite the process weight rate,
				  Wet; and
We is the operating process weight
				  rate in pounds per hour for the new expanded portion.
4.5. Separate stack emission rates for the
				new expanded portions of concern in subsection 4.4 shall be calculated as per
				subsection 4.9. The applicable stack emission rate(s) so calculated shall be
				additive with the existing emission rate for any stack used to vent both an
				existing source operation or duplicate source operation(s) and addition(s) or
				portion(s) thereof.
4.6. The
				operating process weight for new plants which will contain duplicate source
				operations shall include the total process weight of those duplicate units to
				be installed during the initial 5 year operating period.
4.7. Except as noted in subdivisions 4.7.1
				through 4.7.3, the increase of the operating process weight rate of any
				manufacturing process source operation or duplicate source operation by the
				operation of new, replacement, reactivated and/or altered source operation(s)
				shall be considered as an expansion and the allowable emission rates from the
				source operation(s) which resulted in the increase shall be determined as per
				subsection 4.4.
4.7.1. Type 'b' duplicate
				source operations whose air pollution control equipment efficiency is a minimum
				of 99% by weight and whose total process weight rate is less than 250,000
				pounds per hour shall be exempted from the requirements of subsection 4.1
				provided that smoke emitted into the open air from any such duplicate source
				operation is less than 20% opacity. If a duplicate source operation is expanded
				by the addition of a new source operation(s) and the total operating process
				weight rate is then greater than 250,000 pounds per hour, the allowable
				emission rates from the source operation which resulted in the increase above
				250,000 pounds per hour shall be determined as per subsection 4.4.
4.7.2. Primary aluminum reduction potlines
				which are equipped with a fluidized bed reactor or other similar gas cleaning
				device which utilizes particulate matter as a media or as a component of a
				media for collecting or reducing the emissions of gaseous fluorides, shall be
				exempted from the requirements of subsections 4.1 and 4.4 provided that:
4.7.2.a. At least 99% of the gaseous fluoride
				is removed from the exit gas stream by such device prior to discharging the
				cleaned gas stream to the open air;
4.7.2.b. The particulate matter loading in
				the exit gas stream is not greater than 0.01 grains per standard cubic foot of
				dry stack gas; and
4.7.2.c. The
				smoke emitted into the open air from any such duplicate source operation is
				less than 20% opacity. If a duplicate source operation is expanded by the
				addition of new source operation(s) and the total operating process weight rate
				is then greater than 250,000 pounds per hour, the allowable emission rates from
				the source operation which resulted in the increase above 250,000 pounds per
				hour shall be determined as per subsection 4.4.
4.7.3. The emissions of gaseous fluorides and
				particulate fluorides from prebake cells within an existing primary aluminum
				plant in operation on or before January 26, 1976, shall be controlled by a
				system for continuous emission reduction which system shall achieve at least
				90% fluoride emissions capture efficiency through its primary collection system
				and at least 99% fluoride emissions removal efficiency through its primary
				removal system; and
4.7.4. Anode
				butts from such a plant which are recycled in an on-site anode bake plant shall
				be cleaned as necessary to minimize adherent fluoride bearing bath
				material.