[Federal Register Volume 85, Number 121 (Tuesday, June 23, 2020)]
[Rules and Regulations]
[Pages 37565-37568]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-10683]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R04-OAR-2019-0329; FRL-10009-69-Region 4]
Air Plan Approval; GA; 2010 1-Hour SO2 NAAQS Transport
Infrastructure
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
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SUMMARY: The Environmental Protection Agency (EPA) is approving
Georgia's January 9, 2019, State Implementation Plan (SIP) submission
pertaining to the ``good neighbor'' provision of the Clean Air Act (CAA
or Act) for the 2010 1-hour sulfur dioxide (SO2) National
Ambient Air Quality Standard (NAAQS). The good neighbor provision
requires each state's implementation plan to address the interstate
transport of air pollution in amounts that contribute significantly to
nonattainment or interfere with maintenance of a NAAQS in any other
state. In this action, EPA is determining that Georgia will not
contribute significantly to nonattainment or interfere with maintenance
of the 2010 1-hour SO2 NAAQS in any other state. Therefore,
EPA is approving the January 9, 2019, SIP revision as meeting the
requirements of the good neighbor provision for the 2010 1-hour
SO2 NAAQS.
DATES: This rule will be effective July 23, 2020.
ADDRESSES: EPA has established a docket for this action under Docket
Identification No. EPA-R04-OAR-2019-0329. All documents in the docket
are listed on the www.regulations.gov website. Although listed in the
index, some information may not be publicly available, i.e.,
Confidential Business Information or other information whose disclosure
is restricted by statute. Certain other material, such as copyrighted
material, is not placed on the internet and will be publicly available
only in hard copy form. Publicly available docket materials are
available either electronically through www.regulations.gov or in hard
copy at the Air Regulatory Management Section, Air Planning and
Implementation Branch, Air and Radiation Division, U.S. Environmental
Protection Agency, Region 4, 61 Forsyth Street SW, Atlanta, Georgia
30303-8960. EPA requests that if possible, you contact the person
listed in the FOR FURTHER INFORMATION CONTACT section to schedule your
inspection. The Regional Office's official hours of business are Monday
through Friday 8:30 a.m. to 4:30 p.m., excluding Federal holidays.
FOR FURTHER INFORMATION CONTACT: Michele Notarianni, Air Regulatory
Management Section, Air Planning and Implementation Branch, Air and
Radiation Division, U.S. Environmental Protection Agency, Region 4, 61
Forsyth Street SW, Atlanta, Georgia 30303-8960. Ms. Notarianni can be
reached via phone number (404) 562-9031 or via electronic mail at
[email protected].
SUPPLEMENTARY INFORMATION:
I. Background
On June 2, 2010, EPA promulgated a revised primary SO2
NAAQS with a level of 75 parts per billion (ppb), based on a 3-year
average of the annual 99th percentile of 1-hour daily maximum
concentrations. See 75 FR 35520 (June 22, 2010). Pursuant to section
110(a)(1) of the CAA, states are required to submit SIPs meeting the
applicable requirements of section 110(a)(2) within three years after
promulgation of a new or revised NAAQS or within such shorter period as
EPA may prescribe. These SIPs, which EPA has historically referred to
as ``infrastructure SIPs,'' are to provide for the ``implementation,
maintenance, and enforcement'' of such NAAQS, and the requirements are
designed to ensure that the structural components of each state's air
quality management program are adequate to meet the state's
responsibility under the CAA. Section 110(a) of the CAA requires states
to make a SIP submission to EPA for a new or revised NAAQS, but the
contents of individual state submissions may vary depending upon the
facts and circumstances. The content of the changes in such SIP
submissions may also vary depending upon what provisions the state's
approved SIP already contains. Section 110(a)(2) requires states to
address basic SIP elements such as requirements for monitoring, basic
program
[[Page 37566]]
requirements, and legal authority that are designed to assure
attainment and maintenance of the NAAQS.
Section 110(a)(2)(D)(i)(I) of the CAA requires SIPs to include
provisions prohibiting any source or other type of emissions activity
in one state from emitting any air pollutant in amounts that will
contribute significantly to nonattainment, or interfere with
maintenance of the NAAQS in another state. The two clauses of this
section are referred to as prong 1 (significant contribution to
nonattainment) and prong 2 (interference with maintenance of the
NAAQS).
On January 9, 2019, the Georgia Department of Natural Resources,
through the Georgia Environmental Protection Division (GA EPD),
submitted a revision to the Georgia SIP addressing only prongs 1 and 2
of CAA section 110(a)(2)(D)(i)(I) for the 2010 1-hour SO2
NAAQS. EPA is approving GA EPD's January 9, 2019, SIP submission based
on both the State's analysis and EPA's supplemental analysis as
contained in the notice of proposed rulemaking (NPRM) which together
demonstrate Georgia will not contribute significantly to nonattainment,
or interfere with maintenance of the 2010 1-hour SO2 NAAQS
in any other state. All other elements related to the infrastructure
requirements of section 110(a)(2) for the 2010 1-hour SO2
NAAQS for Georgia are addressed in a separate rulemaking.\1\
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\1\ EPA acted on the other elements of Georgia's October 22,
2013, SIP submission, as supplemented on July 25, 2014, for the 2010
1-hour SO2 NAAQS on April 28, 2016. See 81 FR 25355.
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In a NPRM published on December 4, 2019, EPA proposed to approve
Georgia's January 9, 2019,\2\ SIP revision for the 2010 1-hour
SO2 NAAQS. See 84 FR 66334. The details of the SIP revision
and the rationale for EPA's action is explained in the December 4,
2019, NPRM. Comments on the December 4, 2019, NPRM were due on or
before January 3, 2020.
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\2\ In one instance, EPA erroneously referred to Georgia's
January 9, 2019 SIP submission with a date of July 31, 2019, in the
NPRM. EPA confirms that the January 9, 2019, date was intended. See
84 FR 66335.
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II. Response to Comments
EPA received two sets of adverse comments from anonymous commenters
(collectively referred to as the ``Commenter''). These comments are
included in the docket for this final action. EPA has summarized the
comments and provided responses below.
Comment 1: The Commenter asks why EPA is using the 2014 National
Emissions Inventory (NEI) when the 2017 NEI data from point sources has
been available since August of 2019. The Commenter asserts that EPA
must use the most recently available data for all point sources.
Response 1: EPA used the 2014 NEI (version 2) inventory to evaluate
SO2 emissions from all source categories in Table 1 of the
December 4, 2019, NPRM because it is the most recently available,
complete, and quality assured NEI dataset which addresses all source
categories.\3\ Additionally, EPA evaluated statewide data for point
sources from 1990 to 2017 provided in Georgia's SIP revision, and as
shown in Table 4 of the December 4, 2019, NPRM, available 2017
emissions data for point sources not subject to EPA's Data Requirements
Rule (DRR) that emitted greater than 100 tons per year (tpy) of
SO2 in 2017 and are located within 50 kilometers (km) of
Georgia's border (see Table 4 of the December 4, 2019, NPRM). EPA
considered this information as part of its overall ``weight of
evidence'' (WOE) analysis. The comprehensive 2017 NEI for all source
categories, including point sources, is expected to be released later
this year.
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\3\ The NEI is a comprehensive and detailed estimate of air
emissions for criteria pollutants, criteria pollutant precursors,
and hazardous air pollutants from air emissions sources that is
updated every three years using information provided by the states
and other information available to EPA. The NEI is available at
https://www.epa.gov/air-emissions-inventories/national-emissions-inventory.
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Comment 2: The Commenter asks why EPA is using annual emissions in
its WOE notices instead of short-term potential (or allowable)
emissions. The Commenter contends that annual emissions are not
indicative of past or future SO2 emissions and that it is
especially important to use allowable emissions for areas close to
state borders and with relatively elevated ambient or modeled
SO2 levels (even those that are below the level of the
NAAQS) because ``these levels can become elevated quickly with a 1-hour
standard and violate the NAAQS quickly.'' The Commenter asserts that
EPA should model areas close to state borders with allowable emissions,
specifically for interstate transport, to confirm no possibilities of
violating the NAAQS or ``Georgia causing significant contribution above
1% of the NAAQS in Florida or North Carolina.''
Response 2: EPA does not agree that modeling allowable emissions in
areas near the border is necessary to demonstrate that sources in
Georgia will not significantly contribute to nonattainment or interfere
with maintenance of the 2010 1-hour SO2 NAAQS in another
state. When reliable and relevant modeling information is available,
EPA may utilize this information to inform its determination of whether
a state has satisfied the good neighbor provision; however, EPA has
routinely found that such modeling is not required where a WOE approach
provides sufficient information to evaluate whether or not a state will
adversely impact air quality in a downwind state under the good
neighbor provision.\4\ In this instance, EPA used its long-standing WOE
approach to evaluate Georgia's January 9, 2019, SO2 good
neighbor SIP revision, including the evaluation of available modeling
information. EPA continues to believe that the WOE analysis provided in
the NPRM is adequate to determine the potential downwind impact from
Georgia to neighboring states. EPA's WOE analysis in the NPRM included
the following factors: (1) Potential ambient impacts of SO2
emissions from certain facilities in Georgia on neighboring states
based on available air dispersion modeling results; (2) SO2
ambient air quality and emissions trends for Georgia and neighboring
states; (3) SIP-approved regulations that address SO2
emissions; and (4) federal regulations that reduce SO2
emissions.
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\4\ See, e.g., Air Quality State Implementation Plans; Approvals
and Promulgations: Utah; Interstate Transport of Pollution for the
2006 PM2.5 NAAQS, Proposed Rule 78 FR 29314 (May 20,
2013), Final Rule 78 FR 48615 (August 9, 2013); Approval and
Promulgation of Implementation Plans; State of California;
Interstate Transport of Pollution; Significant Contribution to
Nonattainment and Interference With Maintenance Requirements,
Proposed Rule 76 FR 146516 (March 17, 2011), Final Rule 76 FR 34872
(June 15, 2011); Approval and Promulgations of State Implementation
Plans; State of Colorado; Interstate Transport of Pollution for the
2006 24-Hour PM2.5 NAAQS, Proposed Rule, 80 FR 27121 (May
12, 2015), Final Rule 80 FR 47862 (August 10, 2015).
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As described above and in the December 4, 2019, NPRM, EPA evaluated
a number of different factors in a WOE analysis \5\ based on available
information and found no basis to conclude that Georgia emissions will
have an adverse impact on downwind states, and therefore, further
concluded that Georgia will not significantly contribute to
nonattainment or interfere with maintenance of the NAAQS in neighboring
states. Specifically, in Tables 2 and 3 of the December 4, 2019,
[[Page 37567]]
NPRM, EPA considered available modeling results generated for certain
sources subject to EPA's DRR \6\ which were also used during round 3 of
EPA's initial area designations for the 2010 1-hour SO2
NAAQS. Some of these sources were modeled using actual emissions data
as allowed by the DRR,\7\ while others opted to model using potential
or allowable emissions. EPA's preferred dispersion model, American
Meteorological Society/Environmental Protection Agency Regulatory Model
(AERMOD), which was the model used to yield all the modeling results
referenced in the December 4, 2019, NPRM, requires that SO2
emissions (whether actual or allowable) are based on hourly emissions
rates and input into AERMOD in units of grams per second. Typically,
these are derived from actual reported hourly emissions or short-term
allowable emissions instead of calculated hourly emissions derived from
annual emissions. EPA's assessment of these available DRR modeling
results are one part of the Agency's WOE approach, and EPA continues to
believe that they provide helpful information to assess whether there
are any indications of NAAQS violations or relatively high maximum 1-
hour SO2 impacts around a modeled DRR source close to
Georgia's border. As noted in the December 4, 2019, NPRM, while such
DRR modeling was not designed specifically to address interstate
transport, the 50-km distance that is typically used in AERMOD for the
DRR modeling aligns with the 50-km zone used for evaluating cross-
border impacts, both supported by the concept that there are localized
pollutant impacts of SO2 near an emissions source that
decrease with distance.
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\5\ The Commenter refers to WOE ``notices;'' however, EPA is
responding to this comment only as it relates to the Agency's
proposed rulemaking on Georgia's January 9, 2019, SO2
good neighbor SIP revision. To the extent the Commenter is concerned
about other EPA rulemakings that use a WOE analysis, those concerns
are outside the scope of this action.
\6\ The DRR required state air agencies to characterize air
quality, through air dispersion modeling or monitoring, in areas
associated with sources that emitted 2,000 tpy or more of
SO2, or that have otherwise been listed under the DRR by
EPA or state air agencies. In lieu of modeling or monitoring, state
air agencies, by specified dates, could elect to impose federally-
enforceable emissions limitations on those sources restricting their
annual SO2 emissions to less than 2,000 tpy, or provide
documentation that the sources have been shut down. See 80 FR 51052
(August 21, 2015).
\7\ Modeling performed pursuant to the DRR provided the bases
for many areas in round 3 of designations for the 2010 1-hour
SO2 NAAQS. See 40 CFR 51.1203(d)(2) (``Modeling analyses
shall characterize air quality based on either actual SO2
emissions from the most recent 3 years, or on any federally
enforceable allowable emission limit or limits established by the
air agency or the EPA and that are effective and require compliance
by January 13, 2017'').
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Moreover, in Table 4 of the December 4, 2019, NPRM, EPA evaluated
certain sources near the Georgia border for which no modeling
information was available. For these sources, EPA considered the
available emissions information, proximity to the border and to cross-
state sources to determine whether any areas warranted further review
for potential cross-state impacts. This evaluation did not yield any
areas that warranted further review based primarily on the large
distances between cross-state sources. In response to the Commenter's
concern that actual emissions may increase in the future, EPA also
considered as part of the WOE analysis in the December 4, 2019, NPRM:
Emissions trends for Georgia and neighboring states' sources, SIP-
approved regulations that address SO2 emissions, and federal
regulations that reduce SO2 emissions. These factors taken
together provide sufficient information to support EPA's conclusion
that sources in Georgia will not adversely impact air quality in a
downwind state under the good neighbor provision.
EPA also notes that the Commenter did not provide a technical
analysis that contradicts EPA's proposed determination that sources in
Georgia will not significantly contribute to nonattainment or interfere
with maintenance of the 2010 1-hour SO2 NAAQS in another
state.
Furthermore, the Commenter has provided no basis for the suggestion
that the determination of significant contribution from sources in
Georgia to Florida and North Carolina should be based on modeled
concentrations greater than one percent of the 2010 1-hour
SO2 NAAQS. In the December 4, 2019, NPRM, EPA did not rely
on a one percent significance threshold to support the conclusion that
Georgia does not significantly contribute to nonattainment or interfere
with maintenance of the 2010 1-hour SO2 NAAQS in any other
state, nor has EPA in any other action set an air quality threshold for
defining significant contribution or interference with maintenance for
the 2010 1-hour SO2 NAAQS. While EPA has used such a
threshold in other contexts to address regional pollutants like ozone
and fine particulate matter, that threshold was found to be appropriate
in those cases based on data showing that downwind air quality problems
were caused by the collective contribution of otherwise small impacts
form hundreds of sources in numerous upwind states. Moreover, the air
quality threshold was only one of several steps in defining the
``amount'' of emissions that would constitute a state's significant
contribution for those NAAQS. EPA has not developed any analyses, nor
has the Commenter provided any analyses, demonstrating that a similar
threshold would be appropriate for evaluating the good neighbor
obligations for the 2010 1-hour SO2 standard, particularly
in light of the more localized nature of SO2 transport as
described in the December 4, 2019, NPRM. Thus, EPA disagrees with the
Commenter that it is necessary to evaluate whether Georgia is impacting
Florida and North Carolina at a level greater than one percent of the
2010 1-hour SO2 NAAQS.
For the reasons discussed above, EPA finds that its analysis of the
Georgia sources in the December 4, 2019, NPRM, considered alongside
other WOE factors described in that document, support the EPA's
conclusion that Georgia has satisfied CAA section 110(a)(2)(D)(i)(I)
for the 2010 1-hour SO2 NAAQS.
III. Final Action
EPA is approving Georgia's January 9, 2019, SIP submission as
demonstrating that emissions from Georgia will not contribute
significantly to nonattainment or interfere with maintenance of the
2010 1-hour SO2 NAAQS in another state.
IV. Statutory and Executive Order Reviews
Under the CAA, the Administrator is required to approve a SIP
submission that complies with the provisions of the Act and applicable
Federal regulations. See 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. 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 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);
Is not an Executive Order 13771 (82 FR 9339, February 2,
2017) regulatory action because SIP approvals are exempted under
Executive Order 12866;
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
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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).
The SIP is not approved to apply on any Indian reservation land or
in any other area where EPA or an Indian tribe has demonstrated that a
tribe has jurisdiction. In those areas of Indian country, the rule does
not have tribal implications as specified by Executive Order 13175 (65
FR 67249, November 9, 2000), nor will it impose substantial direct
costs on tribal governments or preempt tribal law.
The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the
Small Business Regulatory Enforcement Fairness Act of 1996, generally
provides that before a rule may take effect, the agency promulgating
the rule must submit a rule report, which includes a copy of the rule,
to each House of the Congress and to the Comptroller General of the
United States. EPA will submit a report containing this action and
other required information to the U.S. Senate, the U.S. House of
Representatives, and the Comptroller General of the United States prior
to publication of the rule in the Federal Register. A major rule cannot
take effect until 60 days after it is published in the Federal
Register. This action is not a ``major rule'' as defined by 5 U.S.C.
804(2).
Under section 307(b)(1) of the CAA, petitions for judicial review
of this action must be filed in the United States Court of Appeals for
the appropriate circuit by August 24, 2020. Filing a petition for
reconsideration by the Administrator of this final rule does not affect
the finality of this action for the purposes of judicial review nor
does it extend the time within which a petition for judicial review may
be filed, and shall not postpone the effectiveness of such rule or
action. This action may not be challenged later in proceedings to
enforce its requirements. See section 307(b)(2).
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Incorporation by
reference, Intergovernmental relations, Particulate matter, Reporting
and recordkeeping requirements, Sulfur oxides.
Dated: May 12, 2020.
Mary Walker,
Regional Administrator, Region 4.
PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS
0
1. The authority citation for part 52 continues to read as follows:
Authority: 42 U.S.C. 7401 et seq.
Subpart L--Georgia
0
2. Section 52.570(e) is amended by adding a new entry for ``110(a)(1)
and (2) Infrastructure Requirements for the 2010 1-hour SO2
NAAQS'' at the end of the table to read as follows:
Sec. 52.570 Identification of plan.
* * * * *
(e) * * *
EPA-Approved Georgia Non-Regulatory Provisions
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State
Name of nonregulatory SIP Applicable geographic submittal date/ EPA approval date Explanation
provision or nonattainment area effective date
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* * * * * * *
110(a)(1) and (2) Georgia................ 1/9/2019 6/23/2020,........ Addressing Prongs
Infrastructure Requirements [Insert citation 1 and 2 of
for the 2010 1-hour SO2 NAAQS. of publication]. section
110(a)(2)(D)(i)
only.
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[FR Doc. 2020-10683 Filed 6-22-20; 8:45 am]
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