[Federal Register Volume 86, Number 87 (Friday, May 7, 2021)]
[Proposed Rules]
[Pages 24564-24569]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-09099]
=======================================================================
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R03-OAR-2020-0575; FRL-10022-51-Region 3]
Air Plan Approval; Reasonably Available Control Technology (RACT)
Determinations for Case-by-Case Sources Under the 2008 8-Hour Ozone
National Ambient Air Quality Standards
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule.
-----------------------------------------------------------------------
SUMMARY: The Environmental Protection Agency (EPA) is proposing to
approve multiple state implementation plan (SIP) revisions submitted by
the Commonwealth of Pennsylvania. These revisions were submitted by the
Pennsylvania Department of Environmental Protection (PADEP) to
establish and require reasonably available control technology (RACT)
for ten major sources of volatile organic compounds (VOC) and/or
nitrogen oxides (NOX) pursuant to the Commonwealth of
Pennsylvania's conditionally approved RACT regulations. In this
rulemaking action, EPA is proposing to approve source-specific (also
referred to as ``case-by-case'') RACT determinations for ten
[[Page 24565]]
major sources located in Allegheny County. These RACT evaluations were
submitted to meet RACT requirements for the 2008 8-hour ozone national
ambient air quality standards (NAAQS). This action is being taken under
the Clean Air Act (CAA).
DATES: Written comments must be received on or before June 7, 2021.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R03-
OAR-2020-0575 at https://www.regulations.gov, or via email to
[email protected]. For comments submitted at Regulations.gov,
follow the online instructions for submitting comments. Once submitted,
comments cannot be edited or removed from Regulations.gov. For either
manner of submission, EPA may publish any comment received to its
public docket. Do not submit electronically any information you
consider to be confidential business information (CBI) or other
information whose disclosure is restricted by statute. Multimedia
submissions (audio, video, etc.) must be accompanied by a written
comment. The written comment is considered the official comment and
should include discussion of all points you wish to make. EPA will
generally not consider comments or comment contents located outside of
the primary submission (i.e., on the web, cloud, or other file sharing
system). For additional submission methods, please contact the person
identified in the FOR FURTHER INFORMATION CONTACT section. For the full
EPA public comment policy, information about CBI or multimedia
submissions, and general guidance on making effective comments, please
visit https://www2.epa.gov/dockets/commenting-epa-dockets.
FOR FURTHER INFORMATION CONTACT: Ms. Cynthia Stahl, Air Quality
Analysis Branch (3AD30), Air and Radiation Division, U.S. Environmental
Protection Agency, Region III, 1650 Arch Street, Philadelphia,
Pennsylvania 19103. The telephone number is (215) 814-2180. Ms. Stahl
can also be reached via electronic mail at [email protected].
SUPPLEMENTARY INFORMATION: On May 7, 2020, PADEP submitted revisions to
its SIP to address case-by-case NOX and/or VOC RACT for 93
major facilities. On February 9, 2021, PADEP supplemented its May 7,
2020 submittal with additional materials for nine facilities in
Allegheny County. These SIP revisions are intended to address the
NOX and/or VOC RACT requirements under sections 182 and 184
of the CAA for the 1997 and/or 2008 8-hour ozone NAAQS. Table 1 of this
document lists the facilities included in PADEP's submittals that EPA
is proposing to approve in this action. EPA views each facility as a
separable SIP revision and may take separate final action on one or
more facilities. In this rulemaking action, EPA is only proposing to
approve case-by-case RACT determinations for ten of the 93 facilities
submitted to EPA by PADEP. These ten facilities are located in
Allegheny County and were submitted on behalf of the Allegheny County
Health Department (ACHD).
For additional background information on Pennsylvania's
``presumptive'' RACT II SIP see 84 FR 20274 (May 9, 2019) and on
Pennsylvania's source-specific or ``case-by-case'' RACT determinations
see the appropriate technical support document (TSD) which is available
online at https://www.regulations.gov, Docket No. EPA-R03-OAR-2020-
0575.
Table 1--PADEP SIP Submittals for Major NOX and/or VOC Sources in
Allegheny County, Pennsylvania Subject to Source-Specific RACT Under the
2008 8-Hour Ozone Standard
------------------------------------------------------------------------
Major source
-------------------------------------------------------------------------
Bellefield boiler
Eastman Chemical Resins, Inc.
Energy Center Northshore (formerly, Pittsburgh Thermal Limited
Partnership)
Neville Chemical
Pittsburgh Allegheny County Thermal Ltd.--Stanwix Street (PACT)
PPG Industries Inc.--Springdale
Universal Stainless & Alloy Products, Inc.
U.S. Steel Mon Valley Works--Clairton (formerly, USX Corporation
Clairton Works)
U.S. Steel Mon Valley Works--Edgar Thomson (formerly, USX Corporation
Edgar Thomson Works)
U.S. Steel Mon Valley Works--Irvin (formerly, USX Corporation Irvin
Works)
------------------------------------------------------------------------
I. Background
A. 1997 and 2008 8-Hour Ozone NAAQS
Ground level ozone is not emitted directly into the air but is
created by chemical reaction 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 (ppm) to
0.08 ppm. EPA has designated two moderate nonattainment areas in
Pennsylvania under the 1997 8-hour ozone NAAQS, namely Philadelphia-
Wilmington-Atlantic City, PA-NJ-MD-DE (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 8-hour ozone NAAQS:
Allentown-Bethlehem-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 planning requirements continue to be in effect
under the revoked standard for nonattainment areas under the 1997 8-
hour ozone NAAQS, including RACT.
On June 10, 2013, EPA determined that the Allegheny County 1997 8-
hour ozone NAAQS RACT demonstration
[[Page 24566]]
satisfied all applicable RACT requirements under the CAA for Allegheny
County for the 1997 8-hour ozone NAAQS. 78 FR 34584.
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
172(c)(1) 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 182(b)(2) of the
CAA sets forth additional RACT requirements for ozone nonattainment
areas classified as moderate or higher. Section 182(b)(2) of the CAA
sets forth requirements regarding RACT for the ozone NAAQS for VOC
sources. Section 182(f) subjects major stationary sources of
NOX to the same RACT requirements applicable to major
stationary sources of VOC.\1\
---------------------------------------------------------------------------
\1\ A ``major source'' is defined based on the source's
potential to emit (PTE) of NOX or VOC, and the applicable
thresholds for RACT differs based on the classification of the
nonattainment area in which the source is located. See sections
182(c)-(f) and 302 of the CAA.
---------------------------------------------------------------------------
Section 184(b)(1)(B) of the CAA applies the RACT requirements in
section 182(b)(2) to nonattainment areas classified as marginal and to
attainment areas located within ozone transport regions established
pursuant to section 184 of the CAA. Section 184(a) of the CAA
established by law the current Ozone Transport Region (OTR) comprised
of 12 eastern states, including Pennsylvania. This requirement is
referred to as OTR RACT. As noted previously, a ``major source'' is
defined based on the source's PTE of NOX, VOC, or both
pollutants, and the applicable thresholds differ based on the
classification of the nonattainment area in which the source is
located. See sections 182(c)-(f) and 302 of the CAA.
Since the 1970's, EPA has consistently defined ``RACT'' as the
lowest emission limit that a particular source is capable of meeting by
the application of the control technology that is reasonably available
considering technological and economic feasibility.\2\
---------------------------------------------------------------------------
\2\ See December 9, 1976 memorandum from Roger Strelow,
Assistant Administrator for Air and Waste Management, to Regional
Administrators, ``Guidance for Determining Acceptability of SIP
Regulations in Non-Attainment Areas,'' and also 44 FR 53762
(September 17, 1979).
---------------------------------------------------------------------------
EPA has provided more substantive RACT requirements through
implementation rules for each ozone NAAQS as well as through guidance.
In 2004 and 2005, EPA promulgated an implementation rule for the 1997
8-hour ozone NAAQS in two phases (``Phase 1 of the 1997 Ozone
Implementation Rule'' and ``Phase 2 of the 1997 Ozone Implementation
Rule''). 69 FR 23951 (April 30, 2004) and 70 FR 71612 (November 29,
2005), respectively. Particularly, the Phase 2 Ozone Implementation
Rule addressed RACT statutory requirements under the 1997 8-hour ozone
NAAQS. See 70 FR 71652 (November 29, 2005).
On March 6, 2015, EPA issued its final rule for implementing the
2008 8-hour ozone NAAQS (``the 2008 Ozone SIP Requirements Rule''). 80
FR 12264. At the same time, EPA revoked the 1997 8-hour ozone NAAQS,
effective on April 6, 2015.\3\ The 2008 Ozone SIP Requirements Rule
provided comprehensive requirements to transition from the revoked 1997
8-hour ozone NAAQS to the 2008 8-hour ozone NAAQS, as codified in 40
CFR part 51, subpart AA, following revocation. Consistent with previous
policy, EPA determined that areas designated nonattainment for both the
1997 and 2008 8-hour ozone NAAQS at the time of revocation, must retain
implementation of certain nonattainment area requirements (i.e., anti-
backsliding requirements) for the 1997 8-hour ozone NAAQS as specified
under section 182 of the CAA, including RACT. See 40 CFR 51.1100(o). An
area remains subject to the anti-backsliding requirements for a revoked
NAAQS until EPA approves a redesignation to attainment for the area for
the 2008 8-hour ozone NAAQS. There are no effects on applicable
requirements for areas within the OTR, as a result of the revocation of
the 1997 8-hour ozone NAAQS. Thus, Pennsylvania, as a state within the
OTR, remains subject to RACT requirements for both the 1997 8-hour
ozone NAAQS and the 2008 8-hour ozone NAAQS.
---------------------------------------------------------------------------
\3\ On February 16, 2018, the United States Court of Appeals for
the District of Columbia Circuit (D.C. Cir. Court) issued an opinion
on the 2008 Ozone SIP Requirements Rule. South Coast Air Quality
Mgmt. Dist. v. EPA, No. 15-1115 (D.C. Cir. February 16, 2018). The
D.C. Cir. Court found certain parts reasonable and denied the
petition for appeal on those. In particular, the D.C. Cir. Court
upheld the use of NOX averaging to meet RACT requirements
for 2008 8-hour ozone NAAQS. However, the Court also found certain
other provisions unreasonable. The D.C. Cir. Court vacated the
provisions it found unreasonable.
---------------------------------------------------------------------------
In addressing RACT, the 2008 Ozone SIP Requirements Rule is
consistent with existing policy and Phase 2 of the 1997 Ozone
Implementation Rule. In the 2008 Ozone SIP Requirements Rule, EPA
requires RACT measures to be implemented by January 1, 2017 for areas
classified as moderate nonattainment or above and all areas of the OTR.
EPA also provided in the 2008 Ozone SIP Requirements Rule that RACT
SIPs must contain adopted RACT regulations, certifications where
appropriate that existing provisions are RACT, and/or negative
declarations stating that there are no sources in the nonattainment
area covered by a specific control technique guidelines (CTG) source
category. In the preamble to the 2008 Ozone SIP Requirements Rule, EPA
clarified that states must provide notice and opportunity for public
comment on their RACT SIP submissions, even when submitting a
certification that the existing provisions remain RACT or a negative
declaration. States must submit appropriate supporting information for
their RACT submissions, in accordance with the Phase 2 of the 1997
Ozone Implementation Rule. Adequate documentation must support that
states have considered control technology that is economically and
technologically feasible in determining RACT, based on information that
is current as of the time of development of the RACT SIP.
In addition, in the 2008 Ozone SIP Requirements Rule, EPA clarified
that states can use weighted average NOX emissions rates
from sources in the nonattainment area for meeting the major
NOX RACT requirement under the CAA, as consistent with
existing policy.\4\ EPA also recognized that states may conclude in
some cases that sources already addressed by RACT determinations for
the 1979 1-hour and/or 1997 8-hour ozone NAAQS may not need to
implement additional controls to meet the 2008 8-hour ozone NAAQS RACT
requirement. See 80 FR 12278-12279 (March 6, 2015).
---------------------------------------------------------------------------
\4\ EPA's NOX RACT guidance ``Nitrogen Oxides
Supplement to the General Preamble'' (57 FR 55620; November 25,
1992) encouraged states to develop RACT programs that are based on
``area wide average emission rates.'' Additional guidance on area-
wide RACT provisions is provided by EPA's January 2001 economic
incentive program guidance titled ``Improving Air Quality with
Economic Incentive Programs,'' available at https://www.epa.gov/ttn/oarpg/t1/memoranda/eipfin.pdf. In addition, as mentioned previously,
the D.C. Cir. Court recently upheld the use of NOX
averaging to meet RACT requirements for 2008 8-hour ozone NAAQS.
South Coast Air Quality Mgmt. Dist. v. EPA, No. 15-1115 (D.C. Cir.
February 16, 2018).
---------------------------------------------------------------------------
[[Page 24567]]
C. Applicability of RACT Requirements in Pennsylvania
As indicated earlier, RACT requirements apply to any ozone
nonattainment areas classified as moderate or higher (serious, severe
or extreme) under CAA sections 182(b)(2) and (f). Pennsylvania has
outstanding ozone RACT requirements for both the 1997 and 2008 8-hour
ozone NAAQS. The entire Commonwealth of Pennsylvania is part of the OTR
established under section 184 of the CAA and thus is subject statewide
to the RACT requirements of CAA sections 182(b)(2) and (f), pursuant to
section 184(b).
At the time of revocation of the 1997 8-hour ozone NAAQS (80 FR
12264, March 6, 2015, effective April 6, 2015), only two moderate
nonattainment areas remained in the Commonwealth of Pennsylvania for
this standard, the Philadelphia and the Pittsburgh Areas. As required
under EPA's anti-backsliding provisions, these two moderate
nonattainment areas continue to be subject to RACT under the 1997 8-
hour ozone NAAQS. Given its location in the OTR, the remainder of the
Commonwealth is also treated as moderate nonattainment area under the
1997 8-hour ozone NAAQS for any planning requirements under the revoked
standard, including RACT. The OTR RACT requirement is also in effect
under the 2008 8-hour ozone NAAQS throughout the Commonwealth, since
EPA did not designate any nonattainment areas above marginal for this
standard in Pennsylvania. Thus, in practice, the same RACT requirements
continue to be applicable in Pennsylvania for both the 1997 and 2008 8-
hour ozone NAAQS. RACT must be evaluated and satisfied as separate
requirements under each applicable standard.
RACT applies to major sources of NOX and VOC under each
ozone NAAQS or any VOC sources subject to CTG RACT. Which
NOX and VOC sources in Pennsylvania are considered ``major''
and are therefore subject to RACT is dependent on the location of each
source within the Commonwealth. Sources located in nonattainment areas
would be subject to the ``major source'' definitions established under
the CAA. In the case of Pennsylvania, sources located in any areas
outside of moderate or above nonattainment areas, as part of the OTR,
shall be treated as if these areas were moderate.
In Pennsylvania, the SIP program is implemented primarily by the
PADEP, but also by local air agencies in Philadelphia County (the City
of Philadelphia's Air Management Services [AMS]) and Allegheny County,
(the Allegheny County Health Department [ACHD]). These agencies have
implemented numerous RACT regulations and source-specific measures in
Pennsylvania to meet the applicable ozone RACT requirements.
Historically, statewide RACT controls have been promulgated by PADEP in
Pennsylvania Code Title 25--Environmental Resources, Part I--Department
of Environmental Protection, Subpart C--Protection of Natural
Resources, Article III--Air Resources, (25 Pa. Code) Chapter 129. AMS
and ACHD have incorporated by reference Pennsylvania regulations, but
have also promulgated regulations adopting RACT controls for their own
jurisdictions. In addition, AMS and ACHD have submitted separate
source-specific RACT determinations as SIP revisions for sources within
their respective jurisdictions, which have been approved by EPA. See 40
CFR 52.2020(d)(1).
States were required to make RACT SIP submissions for the 1997 8-
hour ozone NAAQS by September 15, 2006. PADEP submitted a SIP revision
on September 25, 2006, certifying that a number of previously approved
VOC RACT rules continued to satisfy RACT under the 1997 8-hour ozone
NAAQS for the remainder of Pennsylvania.\5\ PADEP has met its
obligations under the 1997 8-hour ozone NAAQS for its CTG and non-CTG
VOC sources. See 82 FR 31464 (July 7, 2017). RACT control measures
addressing all applicable CAA RACT requirements under the 1997 8-hour
ozone NAAQS have been implemented and fully approved in the
jurisdictions of ACHD and AMS. See 78 FR 34584 (June 10, 2013) and 81
FR 69687 (October 7, 2016). For the 2008 8-hour ozone NAAQS, states
were required to submit RACT SIP revisions by July 20, 2014. On May 16,
2016, PADEP submitted a SIP revision addressing RACT under both the
1997 and 2008 8-hour ozone NAAQS in Pennsylvania. Specifically, the May
16, 2016 SIP submittal intended to satisfy sections 182(b)(2)(C),
182(f), and 184 of the CAA for both the 1997 and 2008 8-hour ozone
NAAQS for Pennsylvania's major NOX and VOC non-CTG sources,
except ethylene production plants, surface active agents manufacturing,
and mobile equipment repair and refinishing.\6\
---------------------------------------------------------------------------
\5\ The September 15, 2006 SIP submittal initially included
Pennsylvania's certification of NOX RACT regulations;
however, NOX RACT portions were withdrawn by PADEP on
June 27, 2016.
\6\ EPA's conditional approval of PADEP's May 16, 2016 SIP
revision will cover relevant sources located in both Philadelphia
and Allegheny County, Pennsylvania.
---------------------------------------------------------------------------
D. EPA's Conditional Approval for Pennsylvania's RACT Requirements
Under the 1997 and 2008 8-Hour Ozone NAAQS
On May 16, 2016, PADEP submitted a SIP revision addressing RACT
under both the 1997 and 2008 8-hour ozone NAAQS in Pennsylvania.
PADEP's May 16, 2016 SIP revision intended to address certain
outstanding non-CTG VOC RACT, VOC CTG RACT, and major NOX
RACT requirements under the CAA for both standards. The SIP revision
requested approval of Pennsylvania's 25 Pa. Code 129.96-100, Additional
RACT Requirements for Major Sources of NOX and VOCs (the
``presumptive'' RACT II rule). Prior to the adoption of the RACT II
rule, Pennsylvania relied on the NOX and VOC control
measures in 25 Pa. Code 129.92-95, Stationary Sources of NOX and VOCs,
(the RACT I rule) to meet RACT for non-CTG major VOC sources and major
NOX sources. The requirements of the RACT I rule remain in
effect and continue to be implemented as RACT.\7\ On September 26,
2017, PADEP submitted a supplemental SIP revision which committed to
address various deficiencies identified by EPA in their May 16, 2016
``presumptive'' RACT II rule SIP revision.
---------------------------------------------------------------------------
\7\ These requirements were initially approved as RACT for
Pennsylvania under the 1979 1-hour ozone NAAQS.
---------------------------------------------------------------------------
On May 9, 2019, EPA conditionally approved the RACT II rule based
on PADEP's September 26, 2017 commitment letter.\8\ See 84 FR 20274. In
EPA's final conditional approval, EPA noted that PADEP would be
required to submit, for EPA's approval, SIP revisions to address any
facility-wide or system-wide averaging plan approved under 25 Pa. Code
129.98 and any case-by-case RACT determinations under 25 Pa. Code
129.99. PADEP committed to submitting these additional SIP revisions
within 12 months of EPA's final conditional approval, specifically May
9, 2020.
---------------------------------------------------------------------------
\8\ On August 27, 2020, the Third Circuit Court of Appeals
vacated three provisions of Pennsylvania's presumptive RACT II rule
applicable to certain coal-fired power plants. Sierra Club v. EPA,
No. 19-2562 (3rd Cir. August 27, 2010). None of the sources in this
proposed rule are subject to the presumptive RACT II provisions at
issue in the Sierra Club decision.
---------------------------------------------------------------------------
Therefore, as authorized in CAA section 110(k)(3) and (4),
Pennsylvania was required to submit the following as case-by-case SIP
revisions, by May 9, 2020, for EPA's approval as a condition of
approval of 25 Pa. Code 128 and 129 in the May 16, 2016 SIP revision:
(1) All
[[Page 24568]]
facility-wide or system-wide averaging plans approved by PADEP under 25
Pa. Code 129.98 including, but not limited to, any terms and conditions
that ensure the enforceability of the averaging plan as a practical
matter (i.e., any monitoring, reporting, recordkeeping, or testing
requirements); and (2) all source-specific RACT determinations approved
by PADEP under 25 Pa. Code 129.99, including any alternative compliance
schedules approved under 25 Pa. Code 129.97(k) and 129.99(i); the case-
by-case RACT determinations submitted to EPA for approval into the SIP
should include any terms and conditions that ensure the enforceability
of the case-by-case or source-specific RACT emission limitation as a
practical matter (i.e., any monitoring, reporting, recordkeeping, or
testing requirements). See 84 FR 20274 (May 9, 2019). Through multiple
submissions between 2017 and 2020, PADEP has submitted to EPA for
approval various SIP submissions to implement its RACT II case-by-case
determinations and averaging plans. This proposed rule is based on
EPA's review of some of these SIP revisions.
II. Summary of SIP Revisions
In order to satisfy a requirement from EPA's May 9, 2019
conditional approval, PADEP has submitted to EPA SIP revisions
addressing case-by-case RACT requirements for major sources in
Pennsylvania subject to 25 Pa. Code 129.99. Among the submitted SIP
revisions were case-by-case RACT determinations for sources in
Allegheny County, which PADEP submitted on behalf of ACHD. As noted in
Table 1, PADEP's May 9, 2020 submission to EPA included SIP revisions
pertaining to ACHD's case-by-case NOX and/or VOC RACT
determinations for sources at the ten facilities located in Allegheny
County that are the subject of this rulemaking. PADEP, on behalf of
ACHD, provided documentation in its SIP revisions to support the case-
by-case RACT determinations for affected emission units at each source
subject to 25 Pa. Code 129.99.
In the Pennsylvania RACT SIP revisions, ACHD included a case-by-
case RACT determination for the existing emissions units at each of
these facilities that required a source specific NOX and/or
VOC RACT determination. In ACHD's RACT determinations an evaluation was
completed to determine if previously SIP-approved, case-by-case RACT
requirements (herein referred to as RACT I) were more stringent and
required to be retained in the sources Title V air quality permit and
subsequently, the Federally-approved SIP, or if the new case-by-case
RACT requirements are more stringent and replace the previous
Federally-approved provisions.
EPA, in this action, is taking action on sources of NOX
and/or VOC at ten facilities in Allegheny County, Pennsylvania, subject
to Pennsylvania's case-by-case RACT requirements, as summarized in
Table 2.
Table 2--Ten Major NOX and/or VOC Sources in Allegheny County, Pennsylvania Subject to Case-by-Case RACT II Under the 2008 8-Hour Ozone NAAQS
--------------------------------------------------------------------------------------------------------------------------------------------------------
1997 8-hour ozone RACT source? Major source pollutant (NOX and/
Major source (Allegheny County) (RACT I) or VOC) RACT II permit (effective date)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Bellefield Boiler................... Yes............................... NOX.............................. 0047-I003a (11/30/20).
Eastman Chemical Resins, Inc........ Yes............................... VOC.............................. 0058-I026a (9/30/20).
Energy Center Northshore............ Yes............................... NOX.............................. 0022-I003a (11/30/20).
Neville Chemical.................... Yes............................... VOC.............................. 0060d (11/10/20).
Pittsburgh Allegheny County Thermal Yes............................... NOX.............................. 0044-I001a (11/30/20).
Ltd.--Stanwix Street (PACT).
PPG Industries Inc.--Springdale..... Yes............................... VOC.............................. 0057-OP18a (2/28/20).
Universal Stainless & Alloy Yes............................... NOX.............................. 0027a (2/20/20).
Products, Inc.
U.S. Steel Mon Valley Works-- Yes............................... VOC and NOX...................... 0052-I020a (12/7/20).
Clairton.
U.S. Steel Mon Valley Works--Edgar Yes............................... VOC and NOX...................... 0051-I008a (12/7/20).
Thomson.
U.S. Steel Mon Valley Works--Irvin.. Yes............................... VOC and NOX...................... 0050-OP16c (12/7/20).
--------------------------------------------------------------------------------------------------------------------------------------------------------
The case-by-case RACT determinations submitted by PADEP, on behalf
of ACHD, consist of an evaluation of all reasonably available controls
at the time of evaluation for each affected emissions unit, resulting
in an ACHD determination of what specific control requirements, if any,
satisfy RACT for that particular unit. The adoption of new or
additional controls or the revisions to existing controls as RACT were
specified as requirements in new or revised Federally enforceable
permits (hereafter RACT II permits) issued by ACHD to the source. The
RACT II permits, which revise or adopt additional source-specific
requirements, have been submitted as part of the Pennsylvania RACT SIP
revisions for EPA's approval in the Pennsylvania SIP under 40 CFR
52.2020(d)(1). The RACT II permits submitted by PADEP, on behalf of
ACHD, are listed in the last column of Table 2 of this document, along
with the permit effective date, and are part of the docket for this
rulemaking, which is available online at https://www.regulations.gov,
Docket No. EPA-R03-OAR-2020-0575.\9\ EPA is proposing to incorporate by
reference in the Pennsylvania SIP, via the RACT II permits, source-
specific RACT determinations under the 2008 8-hour ozone NAAQS for
certain major sources of NOX and VOC emissions in Allegheny
County.
---------------------------------------------------------------------------
\9\ The RACT II permits are redacted versions of a facility's
Federally enforceable permits and reflect the specific RACT
requirements being approved into the Pennsylvania SIP.
---------------------------------------------------------------------------
III. EPA's Evaluation of SIP Revisions
After thorough review and evaluation of the information provided by
PADEP, on behalf of ACHD, in its SIP revision submittals for 10 major
sources of NOX and/or VOC in Allegheny County, EPA finds
that ACHD's case-by-case RACT determinations and conclusions provided
are reasonable and appropriately considered technically and
economically feasible controls, while setting lowest achievable limits.
EPA finds that the proposed source-specific RACT controls for the
sources subject to this rulemaking action adequately meet the CAA RACT
requirements for the 2008 8-hour ozone NAAQS for the major sources of
NOX and/or VOC in Pennsylvania, as they are not covered by
or cannot meet Pennsylvania's presumptive RACT regulation.
EPA also finds that all the proposed revisions to previously SIP
approved RACT requirements, under the 1997 8-hour ozone standard (RACT
I), as discussed in ACHD's SIP revisions, will
[[Page 24569]]
result in equivalent or additional reductions of NOX and/or
VOC emissions and should not interfere with any applicable requirement
concerning attainment or reasonable further progress with the NAAQS or
interfere with other applicable CAA requirement in section 110(l) of
the CAA.
EPA's complete analysis of ACHD's case-by-case RACT SIP revisions
is included in the TSD available in the docket for this rulemaking
action and available online at https://www.regulations.gov, Docket
number EPA-R03-OAR-2020-0575.
IV. Proposed Action
Based on EPA's review, EPA is proposing to approve the Pennsylvania
SIP revisions for the ten case-by-case RACT facilities listed in Table
2 of this document and incorporate by reference in the Pennsylvania
SIP, via the RACT II permits, source specific RACT determinations under
the 2008 8-hour ozone NAAQS for certain major sources of NOX
and VOC emissions. EPA is soliciting public comments on the issues
discussed in this document. These comments will be considered before
taking final action. As EPA views each facility as a separable SIP
revision, should EPA receive comment on one facility but not others,
EPA may take separate, final action on the remaining facilities.
V. Incorporation by Reference
In this document, EPA is proposing to include in a final EPA rule
regulatory text that includes incorporation by reference. In accordance
with requirements of 1 CFR 51.5, EPA is proposing to incorporate by
reference source specific RACT determinations via the RACT II permits
as described in Sections II and III--Summary of SIP Revisions and EPA's
Evaluation of SIP Revisions in this document. EPA has made, and will
continue to make, these materials generally available through https://www.regulations.gov and at the EPA Region III Office (please contact
the person identified in the FOR FURTHER INFORMATION CONTACT section of
this preamble for more information).
VI. Statutory and Executive Order Reviews
Under the CAA, the Administrator is required to approve a SIP
submission that complies with the provisions of the CAA and applicable
Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in
reviewing SIP submissions, EPA's role is to approve state choices,
provided that they meet the criteria of the CAA. Accordingly, this
action merely approves state law as meeting Federal requirements and
does not impose additional requirements beyond those imposed by state
law. For that reason, this proposed action:
Is not a ``significant regulatory action'' subject to
review by the Office of Management and Budget under Executive Orders
12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21,
2011);
Does not impose an information collection burden under the
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
Is certified as not having a significant economic impact
on a substantial number of small entities under the Regulatory
Flexibility Act (5 U.S.C. 601 et seq.);
Does not contain any unfunded mandate or significantly or
uniquely affect small governments, as described in the Unfunded
Mandates Reform Act of 1995 (Pub. L. 104-4);
Does not have Federalism implications as specified in
Executive Order 13132 (64 FR 43255, August 10, 1999);
Is not an economically significant regulatory action based
on health or safety risks subject to Executive Order 13045 (62 FR
19885, April 23, 1997);
Is not a significant regulatory action subject to
Executive Order 13211 (66 FR 28355, May 22, 2001);
Is not subject to requirements of section 12(d) of the
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272
note) because application of those requirements would be inconsistent
with the CAA; and
Does not provide EPA with the discretionary authority to
address, as appropriate, disproportionate human health or environmental
effects, using practicable and legally permissible methods, under
Executive Order 12898 (59 FR 7629, February 16, 1994).
In addition, this proposed rulemaking, addressing the case-by-case
NOX and VOC RACT requirements for sources at ten facilities
for the 2008 8-hour ozone NAAQS, does not have tribal implications as
specified by Executive Order 13175 (65 FR 67249, November 9, 2000),
because the SIP is not approved to apply in Indian country located in
the state, and EPA notes that it will not impose substantial direct
costs on tribal governments or preempt tribal law.
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Incorporation by
reference, Nitrogen dioxide, Ozone, Reporting and recordkeeping
requirements, Volatile organic compounds.
Dated: April 23, 2021.
Diana Esher,
Acting Regional Administrator, Region III.
[FR Doc. 2021-09099 Filed 5-6-21; 8:45 am]
BILLING CODE 6560-50-P