Missouri Code of State Regulations › Title 10 - DEPARTMENT OF NATURAL RESOURCES › Division 10 - Air Conservation Commission › Chapter 5 - Air Quality Standards and Air Pollution Control Rules Specific to the St. Louis Metropolitan Area › Section 10 CSR 10-5.540 - Control of Emissions From Batch Process Operations

Current through Register Vol. 49, No. 14, July 15, 2024
PURPOSE: This rulemaking will correct references to
				  other state and federal rules within this rule to address U.S. Environmental
				  Protection Agency (EPA) concerns so that it can be approved into the Missouri
				  State Implementation Plan and clarify the rule intent. This rulemaking will
				  maintain consistency with the criteria in Section 3c of Executive Order 17-03
				  for all new and existing regulations. The evidence supporting the need for this
				  proposed rulemaking, per 536.016, RSMo, is an email dated September 18, 2018,
				  from EPA.
PURPOSE: This rule limits the volatile organic
				  compound (VOC) emissions from batch process operations by incorporating
				  reasonably available control technology (RACT) in the St. Louis 1997 ozone
				  nonattainment area as required by the Clean Air Act Amendments (CAAA) of 1990.
(1) Applicability.
(A) This rule applies throughout the City of
				St. Louis and St. Charles, St. Louis, Jefferson, and Franklin
				Counties.
(B) This rule applies to
				all batch process operations that have the potential to emit one hundred (100)
				tons or more per year of volatile organic compounds (VOC) at facilities
				identified by any of the following four (4)-digit standard industrial
				classification (SIC) codes, as defined in the 1987 edition of the Federal
				Standard Industrial Classification Manual, which is hereby incorporated by
				reference in this rule, as published by the Executive Office of the President,
				Office of Management and Budget. Copies can be obtained from the U.S.
				Publishing Office Bookstore, 710 N. Capitol Street N W, Washington, DC 20401.
				This rule does not incorporate any subsequent amendments or additions:
1. SIC 2821 Plastics Materials, Synthetic
				Resins, and Nonvulcanizable Elastomers;
2. SIC 2833 Medicinal Chemicals and Botanical
				Products;
3. SIC 2834
				Pharmaceutical Preparations;
4. SIC
				2861 Gum and Wood Chemicals;
5. SIC
				2865 Cyclic Organic Crudes and Intermediates, and Organic Dyes and
				Pigments;
6. SIC 2869 Industrial
				Organic Chemicals, Not Elsewhere Classified; or
7. SIC 2879 Pesticides and Agricultural
				Chemicals, Not Elsewhere Classified.
(C) The following single unit operations and
				batch process trains are exempt from the control requirements of section (3) of
				this rule. However, the record keeping and reporting requirements in section
				(4) of this rule shall apply to such single unit operations and batch process
				trains:
1. Within a batch process operation,
				any single unit operation with uncontrolled total annual mass emissions of less
				than or equal to five hundred (500) pounds per year (lb/yr) of VOC. These
				single unit operations are also excluded from the calculation of the total
				annual mass emissions for a batch process train. If the uncontrolled total
				annual mass emissions from an exempt single unit operation exceed five hundred
				(500) lb/yr of VOC in any subsequent year, the owner or operator shall
				calculate applicability in accordance with subsection (1)(E) of this rule for
				both the individual single unit operation and the batch process train
				containing the single unit operation; and
2. Any batch process train containing process
				vents that have, in the aggregate, uncontrolled total annual mass emissions, as
				determined in accordance with paragraph (3)(D)1. of this rule, of less than
				thirty thousand (30,000) lb/yr of VOC for all products manufactured in that
				batch process train.
(D)
				The applicability equations in subsection (1)(E) of this rule, which require
				the calculation of uncontrolled total annual mass emissions and flow rate
				value, shall be used to determine whether a single unit operation or a batch
				process train is subject to the control requirements in section (3) of this
				rule. The applicability equations apply to the following:
1. Any single unit operation with
				uncontrolled total annual mass emissions that exceed five hundred (500) lb/yr
				of VOC and a VOC concentration greater than five hundred (500) parts per
				million by volume (ppmv). In this individual determination, the applicability
				analysis should not be performed for any single unit operation with a VOC
				concentration less than or equal to five hundred (500) ppmv; and
2. Any batch process train containing process
				vents which, in the aggregate, have uncontrolled total annual mass emissions of
				thirty thousand (30,000) lb/yr or more of VOC from all products manufactured in
				the batch process train. Any single unit operation with uncontrolled total
				annual mass emissions exceeding five hundred (500) lb/yr, regardless of VOC
				concentration, shall be included in the aggregate applicability
				analysis.
(E)
				Applicability Equations. The applicability equations in this rule subsection
				are specific to volatility.
1. Weighted
				average volatility (WAV) shall be calculated as follows:
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where:
WAV =weighted average volatility;
MVOCi =mass of VOC component i;
MWVOCi =molecular weight of VOC
				  component i; and
VPi =vapor pressure of VOC component
				  i.
2. For purposes of
				determining applicability, flow rate values shall be calculated as follows:
A. For low WAV has a vapor pressure less than
				or equal to seventy-five (75) millimeters of Mercury (mmHg) at twenty degrees
				Celsius (20 °C), and shall use the following equation:
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Where:
FR =Vent stream flow rate, expressed as standard cubic feet
				  per minute (scfm);
UTAME =Uncontrolled total annual mass emissions of VOC,
				  expressed as lb/yr;
B.
				Moderate WAV has a vapor pressure greater than seventy-five (75) mmHg but less
				than or equal to one hundred fifty (150) mmHg at twenty degrees Celsius (20
				°C), and shall use the following equation:
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C.
				High WAV has a vapor pressure greater than one hundred fifty (150) mmHg at
				twenty degrees Celsius (20 °C), and shall use the following equation:
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3. To determine the vapor pressure of VOC,
				the applicable methods and procedures in section (5) of this rule shall
				apply.
(F) In the event
				that other rules in Title 10 Division 10 of the
Code of State
				Regulations
are also applicable to batch process operations, the more
				stringent rule shall apply.