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Federal Register / Vol. 86, No. 24 / Monday, February 8, 2021 / Notices
https www.epa.gov/dockets/
commenting-epa-dockets.
The https www.regulations.gov/
website allows you to submit your comment anonymously, which means the EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an email comment directly to the EPA without going through https
www.regulations.gov/, your email address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the internet. If you submit an electronic comment, the EPA
recommends that you include your name and other contact information in the body of your comment and with any digital storage media you submit. If the EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, the EPA may not be able to consider your comment.
Electronic files should not include special characters or any form of encryption and be free of any defects or viruses. For additional information about the EPAs public docket, visit the EPA Docket Center homepage at https
www.epa.gov/dockets.
The EPA is temporarily suspending its Docket Center and Reading Room for public visitors, with limited exceptions, to reduce the risk of transmitting COVID19. Our Docket Center staff will continue to provide remote customer service via email, phone, and webform.
We encourage the public to submit comments via https
www.regulations.gov/ as there may be a delay in processing mail and faxes.
Hand deliveries or couriers will be received by scheduled appointment only. For further information and updates on EPA Docket Center services, please visit us online at https
www.epa.gov/dockets.
The EPA continues to carefully and continuously monitor information from the CDC, local area health departments, and our Federal partners so that we can respond rapidly as conditions change regarding COVID19.
Submitting CBI. Do not submit information containing CBI to the EPA
through https www.regulations.gov/ or email. Clearly mark the part or all of the information that you claim to be CBI.
For CBI information on any digital storage media that you mail to the EPA, mark the outside of the digital storage media as CBI and then identify electronically within the digital storage media the specific information that is claimed as CBI. In addition to one complete version of the comments that includes information claimed as CBI, you must submit a copy of the
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comments that does not contain the information claimed as CBI directly to the public docket through the procedures outlined in Instructions above. If you submit any digital storage media that does not contain CBI, mark the outside of the digital storage media clearly that it does not contain CBI.
Information not marked as CBI will be included in the public docket and the EPAs electronic public docket without prior notice. Information marked as CBI
will not be disclosed except in accordance with procedures set forth in 40 Code of Federal Regulations CFR
part 2. Send or deliver information identified as CBI only to the following address: OAQPS Document Control Officer C40402, OAQPS, U.S.
Environmental Protection Agency, Research Triangle Park, North Carolina 27711, Attention Docket ID No. EPA
HQOAR20200599. Note that written comments containing CBI and submitted by mail may be delayed and no hand deliveries will be accepted.
Acronyms and abbreviations. We use multiple acronyms and terms in this document. While this list may not be exhaustive, to ease the reading of this document and for reference purposes, the EPA defines the following terms and acronyms here:
AMEL alternative means of emission limitation CAA Clean Air Act CBI Confidential Business Information CFR Code of Federal Regulations EPA Environmental Protection Agency HAP hazardous air pollutants MTVP maximum true vapor pressure NESHAP national emission standards for hazardous air pollutants NSPS new source performance standards OAQPS Office of Air Quality Planning and Standards PRD pressure relief device PRV pressure relief valve scf standard cubic feet VAM vinyl acetate monomer VOC volatile organic compounds
Organization of this document. The information in this document is organized as follows:
I. Background II. Request for AMEL
III. AMEL for the Rohm and Haas Chemicals LLC facility IV. Request for Comments
I. Background Rohm and Haas is requesting an AMEL for the Standards of Performance for Volatile Organic Liquid Storage Vessels, 40 CFR part 60, subpart Kb 40
CFR 60.112b, that would apply to a proposed new vinyl acetate bulk storage tank to be used at its chemical plant in Kankakee, Illinois. In this Federal Register document, the EPA is soliciting
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comment on all aspects of this AMEL
request, including the corresponding operating conditions that would demonstrate that the requested AMEL
would achieve a reduction in emissions of volatile organic compounds VOC at least equivalent to the reduction in emissions required by the new source performance standards NSPS at 40
CFR 60.112b. The AMEL request states that a new storage tank will be installed at the site to replace the existing vinyl acetate monomer VAM CAS 10805
4 tank TK72. Such tank functions as a buffer for the facilitys manufacturing needs between bulk deliveries of VAM.
The facility receives VAM
predominantly by railcar, but occasionally some VAM is supplied via tank truck. Due to the facilitys demand for VAM, the tank experiences a significant number of turnovers per year.
Because the new storage tank will be used to store VAM, a volatile organic liquid as defined at 40 CFR 60.111b, it is subject to NSPS subpart Kb. Rohm and Haas is submitting this AMEL
request because the proposed tank design does not contain either an external or internal floating roof or a closed vent system and control device that are specified by 40 CFR 60.112b;
rather, it is designed to reduce emissions through vapor balancing and pressure containment. Rohm and Haas states that breathing losses will not occur from the proposed new tank because there are no vents and the tank can withstand pressures up to 9 pounds per square inch gauge psig before activation of a pressure relief device PRD. Rohm and Haas further states that the proposed system will control emissions from working losses by complying with the requirements associated with the use of a vapor balancing system in the National Emission Standards for Organic Hazardous Air Pollutants NESHAP
from the Synthetic Organic Chemical Manufacturing Industry for Process Vents, Storage Vessels, Transfer Operations, and Wastewater, 40 CFR
part 63, subpart G.1
The VOC standards at 40 CFR 60.112b were established as work practice standards pursuant to CAA section 111h1. For standards established according to that provision, CAA
section 111h3 allows the EPA to 1 Rohm and Haas states in its application that compliance with 40 CFR 119g will address both working losses and breathing losses from this tank.
Rohm and Haas letter at 1. To the extent that Rohm and Haas is suggesting 40 CFR 119g addresses breathing losses, we disagree; rather, as discussed in the prior sentence, breathing losses are addressed through pressure containment.

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