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Federal Register / Vol. 86, No. 145 / Monday, August 2, 2021 / Proposed Rules Mr. Burger can also be reached via electronic mail at burger.riley@epa.gov.
SUPPLEMENTARY INFORMATION: On May 7, 2020, PADEP submitted a revision to its SIP to address case-by-case NOX and/or VOC RACT for sources at numerous major NOX and VOC emitting facilities located in the Commonwealth, including the twenty-four facilities in this action. This SIP revision is intended to address the NOX and/or
VOC RACT requirements under sections 182 and 184 of the CAA for the 1997
and 2008 8-hour ozone NAAQS. Table 1 of this document lists the SIP
submittal date and the facilities included in PADEPs submittal.
Although submitted in one SIP revision by PADEP, EPA views each facility as a separable SIP revision and may take separate final action on one or more facilities.

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For additional background information on Pennsylvanias presumptive RACT II SIP see 84 FR
20274 May 9, 2019 and on Pennsylvanias source-specific or caseby-case RACT determinations see the appropriate technical support document TSD which is available online at https www.regulations.gov, Docket No.
EPAR03OAR20210380.

TABLE 1PADEP SIP SUBMITTALS FOR MAJOR NOX AND/OR VOC SOURCES IN PENNSYLVANIA SUBJECT TO SOURCESPECIFIC RACT UNDER THE 1997 AND 2008 8-HOUR OZONE STANDARD
SIP submittal date
Major source county
5/7/2020

Anvil International, LLC formerly Grinnell Corporation Lancaster.
ArcelorMittal Plate LLC Conshohocken Plant formerly Bethlehem Lukens Plate Montgomery.
Braskem America Inc. Marcus Hook formerly Epsilon Products Co.Marcus Hook Delaware.
Buck Co Inc. Quarryville formerly Buck Company Inc Lancaster.
Calumet Karns City Refining LLC formerly PenrecoKarns City Butler.
Clarion Bathware Marble Clarion.
Domtar Paper Company Johnsonburg Mill formerly Willamette Industries, Johnsonburgh Mill Elk.
Exelon Generation Company LLC Croydon Generating Station formerly PECO Energy Co.Croydon Generating Station Bucks.
Georgia-Pacific Panel Products LLC Mt. Jewell MDF Plant McKean.
GE Transportation Grove City Engine formerly GE Transportation Systems Mercer.
GrafTech USA LLC St Marys formerly The Carbide/Graphite Group, Inc Elk.
Haysite Reinforced Plastics LLC Erie Erie.
INMETCO Ellwood City formerly The International Metals Reclamation Co Lawrence.
International Waxes Inc Farmers Valley formerly Petrowax Refining McKean.
Jeld Wen Fiber Division PA Bradford.
Mars Wrigley Confectionery US LLC Elizabethtown Lancaster.
Molded Fiber Glass Company Union City formerly Molded Fiber Glass Erie.
Monroe Energy LLC Trainer formerly Conoco Phillips Company Delaware.
Nova Chemicals Company Beaver formerly Nova Chemicals, Inc. Beaver.
Sasol Chemicals USA LLC formerly Merisol Antioxidants LLC Venango.
Silberline Manufacturing Company Lincoln Drive Plant formerly Silberline Manufacturing Co Schuylkill.
Superior Tube Company Lower Providence formerly Superior Tube Company Montgomery.
Victaulic Company Alburtis Facility Lehigh.
Victaulic Forks Facility Northampton.

I. Background
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A. 1997 and 2008 8-Hour Ozone NAAQS
Ground level ozone is not emitted directly into the air but is created by chemical reactions between NOX and VOC in the presence of sunlight.
Emissions from industrial facilities, electric utilities, motor vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources of NOX
and VOC. Breathing ozone can trigger a variety of health problems, particularly for children, the elderly, and people of all ages who have lung diseases such as asthma. Ground level ozone can also have harmful effects on sensitive vegetation and ecosystems.
On July 18, 1997, EPA promulgated a standard for ground level ozone based on 8-hour average concentrations. 62 FR
38856. The 8-hour averaging period replaced the previous 1-hour averaging period, and the level of the NAAQS was changed from 0.12 parts per million
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ppm to 0.08 ppm. EPA has designated two moderate nonattainment areas in Pennsylvania under the 1997 8-hour ozone NAAQS, namely PhiladelphiaWilmington-Atlantic City, PA-NJ-MDDE the Philadelphia Area and Pittsburgh-Beaver Valley the Pittsburgh Area. See 40 CFR 81.339.
On March 12, 2008, EPA strengthened the 8-hour ozone standards, by revising its level to 0.075 ppm averaged over an 8-hour period 2008 8-hour ozone NAAQS. On May 21, 2012, EPA
designated five marginal nonattainment areas in Pennsylvania for the 2008 8hour ozone NAAQS: AllentownBethlehem-Easton, Lancaster, Reading, the Philadelphia Area, and the Pittsburgh Area. 77 FR 30088; see also 40 CFR 81.339.
On March 6, 2015, EPA announced its revocation of the 1997 8-hour ozone NAAQS for all purposes and for all areas in the country, effective on April 6, 2015. 80 FR 12264. EPA has determined that certain nonattainment
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planning requirements continue to be in effect under the revoked standard for nonattainment areas under the 1997 8hour ozone NAAQS, including RACT.
B. RACT Requirements for Ozone The CAA regulates emissions of NOX
and VOC to prevent photochemical reactions that result in ozone formation.
RACT is an important strategy for reducing NOX and VOC emissions from major stationary sources within areas not meeting the ozone NAAQS.
Areas designated nonattainment for the ozone NAAQS are subject to the general nonattainment planning requirements of CAA section 172.
Section 172c1 of the CAA provides that SIPs for nonattainment areas must include reasonably available control measures RACM for demonstrating attainment of all NAAQS, including emissions reductions from existing sources through the adoption of RACT.
Further, section 182b2 of the CAA
sets forth additional RACT requirements
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