Document ID: EPA-R04-OAR-2018-0552-0007
Agency: epa
Document Type: Rule
Title: Air Quality State Implementation Plans; Approvals and Promulgations: Florida; Redesignation of the Hillsborough County 2010 1-Hour Sulfur Dioxide Nonattainment Area to Attainment
Posted Date: 2019-11-12T05:00Z

[Federal Register Volume 84, Number 218 (Tuesday, November 12, 2019)]
[Rules and Regulations]
[Pages 60927-60931]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-23375]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[EPA-R04-OAR-2018-0552; FRL-10001-35-Region 4]

Air Plan Approval and Designation of Areas; FL; Redesignation of 
the Hillsborough County 2010 1-Hour Sulfur Dioxide Nonattainment Area 
to Attainment

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: In a letter dated June 7, 2018, the State of Florida, through 
the Florida Department of Environmental Protection (FDEP), submitted a 
request for the Environmental Protection Agency (EPA) to redesignate 
the Hillsborough County sulfur dioxide (SO2) nonattainment 
area (hereinafter referred to as the

[[Page 60928]]

``Hillsborough County Area'' or ``Area'') to attainment for the 2010 1-
hour SO2 primary national ambient air quality standard 
(NAAQS) and to approve an accompanying state implementation plan (SIP) 
revision containing a maintenance plan for the Area. Through a letter 
dated April 16, 2019, FDEP submitted a revision to the June 7, 2018, 
redesignation request and SIP revision asking EPA to incorporate 
certain conditions into the SIP from a recent permit revision 
applicable to the Tampa Electric Company--Big Bend Station (Big Bend) 
power plant. EPA is taking final action: To determine that the 
Hillsborough County Area attained the 2010 1-hour SO2 NAAQS 
by its applicable attainment date of October 4, 2018; to approve the 
SIP revision containing the State's plan for maintaining attainment of 
the 2010 1-hour SO2 standard and to incorporate the 
maintenance plan into the SIP; to redesignate the Hillsborough County 
Area to attainment for the 2010 1-hour SO2 NAAQS; and to 
incorporate into the SIP certain permitting conditions applicable to 
Big Bend, including a condition that lowers the SO2 
emissions cap and a condition that restricts fuel use at two electric 
generating units to natural gas.

DATES: This rule will be effective December 12, 2019.

ADDRESSES: EPA has established a docket for this action under Docket 
Identification No. EPA-R04-OAR-2018-0552. 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 at all 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: Madolyn Sanchez, 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. Sanchez may be 
reached by phone at (404) 562-9644 or via electronic mail at 
exception occurred on : 2019-23375.htm
exception occurred on : 2019-23375.htm
san[email protected].

SUPPLEMENTARY INFORMATION: 

I. What is the background for the actions?

    On June 2, 2010, EPA revised the primary SO2 NAAQS, 
establishing a new 1-hour SO2 standard of 75 parts per 
billion (ppb). See 75 FR 35520 (June 22, 2010). Under EPA's regulations 
at 40 CFR part 50, the 2010 1-hour SO2 NAAQS is met at a 
monitoring site when the 3-year average of the annual 99th percentile 
of daily maximum 1-hour average concentrations is less than or equal to 
75 ppb (based on the rounding convention in 40 CFR part 50, appendix 
T). See 40 CFR 50.17. Ambient air quality monitoring data for the 3-
year period must meet a data completeness requirement. A year meets 
data completeness requirements when all four quarters are complete, and 
a quarter is complete when at least 75 percent of the sampling days for 
each quarter have complete data. A sampling day has complete data if 75 
percent of the hourly concentration values, including state-flagged 
data affected by exceptional events which have been approved for 
exclusion by the Administrator, are reported.\1\
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    \1\ See 40 CFR part 50, appendix T, section 3(b).
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    Upon promulgation of a new or revised NAAQS, the Clean Air Act (CAA 
or Act) requires EPA to designate as nonattainment any area that does 
not meet (or that contributes to ambient air quality in a nearby area 
that does not meet) the NAAQS. EPA designated the Hillsborough County 
Area as nonattainment for the 2010 1-hour SO2 NAAQS, 
effective on October 4, 2013, using 2009-2011 complete, quality 
assured, and certified ambient air quality data. See 78 FR 47191 
(August 5, 2013). The Hillsborough County Area is comprised of the 
portion of Hillsborough County encompassed by the polygon with the 
vertices using Universal Traverse Mercator (UTM) coordinates in UTM 
zone 17 with datum NAD83 as follows: (1) Vertices-UTM Easting (m) 
358581, UTM Northing 3076066; (2) vertices-UTM Easting (m) 355673, UTM 
Northing 3079275; (3) UTM Easting (m) 360300, UTM Northing 3086380; (4) 
vertices-UTM Easting (m) 366850, UTM Northing 3086692; (5) vertices-UTM 
Easting (m) 368364, UTM Northing 3083760; and (6) vertices-UTM Easting 
(m) 365708, UTM Northing 3079121. Under the CAA, nonattainment areas 
must attain the NAAQS as expeditiously as practicable but not later 
than five years after the October 4, 2013, effective date of the 
designation. See CAA section 192(a). Therefore, the Hillsborough County 
Area's applicable attainment date was no later than October 4, 2018.
    EPA's 2010 SO2 nonattainment designation for the Area 
triggered an obligation for Florida to develop a nonattainment SIP 
revision addressing certain requirements under title I, part D, subpart 
1 (hereinafter ``Subpart 1''), and to submit that SIP revision to EPA 
in accordance with the deadlines in title I, part D, subpart 5 
(hereinafter ``Subpart 5''). Subpart 1 contains the general 
requirements for nonattainment areas for criteria pollutants, including 
requirements to develop a SIP that provides for the implementation of 
reasonably available control measures (RACM), requires reasonable 
further progress (RFP), includes base-year and attainment-year 
emissions inventories, a SIP-approved nonattainment new source review 
(NNSR) permitting program that accounts for growth in the area, 
enforceable emission limitations and other such control measures, and 
provides for the implementation of contingency measures. This SIP 
revision was due within 18 months following the October 4, 2013, 
effective date of designation (i.e., April 4, 2015). See CAA section 
191(a). Florida submitted a nonattainment SIP revision to EPA on April 
3, 2015.
    On July 3, 2017 (82 FR 30749), EPA approved Florida's April 3, 
2015, SO2 nonattainment SIP revision. This SIP revision 
provided a modeled attainment demonstration and satisfied the required 
nonattainment planning requirements mentioned above for the 
Hillsborough County Area. The revision included a base year emissions 
inventory, a modeling demonstration of attainment for the 2010 
SO2 NAAQS, RACM/Reasonable Available Control Technology 
(RACT), an RFP plan, a NNSR permitting program, and contingency 
measures for the Hillsborough County Area.
    As part of that action, EPA incorporated into the Florida SIP 
specified SO2 emissions caps, compliance monitoring, and 
recordkeeping and reporting requirements for emission units at the 
Mosaic Fertilizer, LLC Riverview facility (Permit No. 0570008-080-AC, 
issued on January 15, 2015) and Big Bend (Permit No. 0570039-074-AC, 
issued on February 26, 2015). Florida based its modeled attainment 
demonstration, submitted with its April 3, 2015,

[[Page 60929]]

nonattainment SIP revision, on these conditions. Big Bend has four 
emission units (EUs 1 through 4), and Big Bend's permit placed an 
SO2 emissions cap on all four units at 3,162 pounds per hour 
(lb/hr) on a 30-day boiler operating day average. To demonstrate 
compliance with the four-unit cap, Permit No. 0570039-074-AC required 
each unit to monitor SO2 emissions with a continuous 
emission monitoring system (CEMS).
    On December 14, 2018, Florida issued a final air construction 
permit to Big Bend (Permit No. 0570039-120-AC) that, among other 
things, lowers the four-unit emissions cap from 3,162 lb/hr to 2,156 
lb/hr; restricts EUs 1 and 2 to only burn natural gas; and since the 
amount of sulfur in natural gas is negligible, authorizes the removal 
of the SO2 CEMS for EUs 1 and 2 and requires monitoring for 
these two units in accordance with the calculation method allowed for 
gas-fired acid rain units in 40 CFR part 75 to demonstrate compliance 
with the lowered emissions cap.\2\ EUs 1 and 2 share a stack and a flue 
gas desulfurization (FGD) system to control SO2. Permit No. 
0570039-074-AC required certified CEMS as the method of SO2 
emissions monitoring and compliance for EUs 1 and 2. However, with the 
restriction on EUs 1 and 2 to burn natural gas in the revised permit, 
the new method of monitoring and compliance for EUs 1 and 2 utilizes 
the protocol in 40 CFR part 75, Appendix D to determine the hourly 
SO2 emission rate from each unit. EUs 3 and 4 continue to 
certify compliance with the emissions cap through use of CEMS. 
Therefore, Big Bend will demonstrate compliance of the lowered four-
unit emissions cap through a combination of 40 CFR part 75, Appendix D 
(EUs 1 and 2) and SO2 CEMS data (EUs 3 and 4). As required 
by 40 CFR part 75, Appendix D, section 2.1, Big Bend will measure and 
record the hourly flow rate of natural gas combusted by EUs 1 and 2 
with an in-line fuel flowmeter. The pounds-per-hour SO2 
emission rates for each of these two units will then be calculated by 
using the equation provided in 40 CFR part 75, Appendix D, section 
3.3.1, along with the measured hourly natural gas flow rate to each 
unit and the vendor certified sulfur content of the combusted natural 
gas.
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    \2\ Florida incorporated the conditions applicable to Big Bend 
from Permit No. 0570039-120-AC into the facility's Title V operating 
permit on February 8, 2019.
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    On June 7, 2018,\3\ Florida submitted a request to EPA to 
redesignate the Hillsborough County Area to attainment for the 2010 1-
hour SO2 NAAQS and a related SIP revision containing a 
maintenance plan for the Area. On April 16, 2019, FDEP submitted a 
revision to the June 7, 2018, redesignation request and SIP revision 
asking EPA to incorporate into the SIP certain permit conditions 
established in Permit No. 0570039-120-AC.\4\ As noted below, some of 
these conditions replace conditions that EPA incorporated into the SIP 
from Permit No. 0570039-074-AC in the Agency's July 3, 2017 action 
approving the State's nonattainment SIP. The conditions identified for 
incorporation into the SIP from Permit No. 0570039-120-AC are: (1) 
Section 2, Condition 4 (new)--describing the 40 CFR part 75, Appendix D 
monitoring methodology and compliance requirements for EUs 1 and 2; (2) 
the ``SO2 Emissions Cap'' provision from Section 3, 
Condition 4 (replacement)--setting a four-unit emissions cap of 2,156 
lb/hr averaged over a 30-day boiler operating day, requiring that EUs 1 
and 2 demonstrate compliance with the cap by monitoring natural gas 
fuel flow and following the procedures in Appendix D to 40 CFR 75 to 
determine SO2 mass emissions, and requiring that EUs 3 and 4 
demonstrate compliance with the cap through CEMS; (3) the 
``SO2 CEMS'' provision from Section 3, Condition 4 
(replacement)--requiring EUs 3 and 4 to use CEMS to demonstrate 
compliance with the cap and to meet the quality assurance and quality 
control requirements outlined in the facility's title V permit; and (4) 
the ``Methods of Operation'' for Units 1 and 2 provision from Section 
3, Condition 6 (new)--restricting EUs 1 and 2 to burning only natural 
gas from a federally regulated pipeline. In a notice of proposed 
rulemaking (NPRM) published on July 31, 2019 (84 FR 37173), EPA 
proposed to determine that the Area attained the 2010 1-hour 
SO2 NAAQS by its attainment date of October 4, 2018; to 
approve the maintenance plan for the Area as meeting the maintenance 
plan requirements of CAA section 175A and to incorporate it into the 
SIP; to approve Florida's request for redesignation of the Area from 
nonattainment to attainment for the 2010 1-hour SO2 NAAQS as 
meeting the redesignation requirements of CAA section 107(d)(3)(E); and 
to incorporate into the SIP the aforementioned permitting conditions 
applicable to Big Bend. No comments were received on the July 31, 2019, 
proposed rulemaking. The details of Florida's submittal and the 
rationale for EPA's actions are further explained in the NPRM, 
including the modeled attainment demonstration and consideration of 
SO2 ambient air monitoring data trends in the area to 
determine attainment with the 2010 1-hour SO2 NAAQS.
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    \3\ The June 7, 2018, submission was received by EPA on June 12, 
2018.
    \4\ The April 19. 2019, submission was received by EPA on April 
25, 2019.
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II. What are the effects of these actions?

    Approval of the redesignation request changes the legal designation 
of the Hillsborough County Area, found at 40 CFR 81.310, from 
nonattainment to attainment for the 2010 1-hour SO2 NAAQS. 
Approval of Florida's associated SIP revision also incorporates a plan 
into the SIP for maintaining the 2010 1-hour SO2 NAAQS in 
the Hillsborough County Area as described in the NPRM. The CAA section 
175A maintenance plan also establishes contingency measures to remedy 
any future violations of the 2010 1-hour SO2 NAAQS and 
procedures for evaluation of potential violations. The Area is required 
to implement this maintenance plan and the prevention of significant 
deterioration program for the 2010 1-hour SO2 NAAQS. The 
approved maintenance plan can only be revised if the revision meets the 
requirements of CAA section 110(l) and, if applicable, CAA section 193. 
Approval of the SIP revision also incorporates into the SIP certain 
permitting conditions applicable to Big Bend, making them permanent and 
federally enforceable.

III. Incorporation by Reference

    In this rule, EPA is finalizing regulatory text that includes 
incorporation by reference. In accordance with requirements of 1 CFR 
51.5, EPA is finalizing the incorporation by reference into Florida's 
SIP the following conditions from Air Permit No. 0570039-120-AC issued 
by FDEP to Big Bend with an effective date of December 14, 2018, 
related to an SO2 emissions cap and fuel restriction at the 
facility and associated compliance monitoring, recordkeeping, and 
reporting requirements: \5\ (1) Section 2, Condition 4; (2) the 
``SO2 Emissions Cap'' provision from Section 3, Condition 4; 
\6\ (3) the ``SO2 CEMS''

[[Page 60930]]

provision from Section 3, Condition 4; \7\ and (4) the ``Methods of 
Operation'' for Units 1 and 2 provision from Section 3, Condition 6.\8\ 
Therefore, these material have been approved by EPA for inclusion in 
the state implementation plan, have been incorporated by reference by 
EPA into that plan, are fully federally enforceable under sections 110 
and 113 of the CAA as of the effective date of the final rulemaking of 
EPA's approval, and will be incorporated by reference in the next 
update to the SIP compilation.\9\
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    \5\ For additional information regarding these permit 
conditions, see Section I, above, and Section V of the NPRM.
    \6\ In its April 16, 2019, submittal, Florida identifies this 
provision as ``Section 3, Subsection B, Specific Condition 2''; 
however, it is contained under the heading ``4. Permit Being 
Modified: Permit No. 0570039-096-AC'' in Section 3 of Permit No. 
0570039-120-AC. See Section V of the NPRM for additional 
information.
    \7\ In its April 16, 2019, submittal, Florida identifies this 
provision as ``Section 3, Subsection B, Specific Condition 3; 
however, it is contained under the heading ``4. Permit Being 
Modified: Permit No. 0570039-096-AC'' in Section 3 of Permit No. 
0570039-120-AC. See Section V of the NPRM for additional 
information.
    \8\ In its April 16, 2019, submittal, Florida identifies this 
provision as ``Section 3, Subsection A, Specific Condition 3a; 
however, it is contained under the heading ``6. Permits Being 
Modified: Permit Nos. 0570039-066-AC & 109-AC'' in Section 3 of 
Permit No. 0570039-120-AC. See Section V of the NPRM for additional 
information.
    \9\ See 62 FR 27968 (May 22, 1997).
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    EPA has made, and will continue to make, these materials generally 
available through www.regulations.gov and at the EPA Region 4 Office 
(please contact the person identified in the FOR FURTHER INFORMATION 
CONTACT section of this preamble for more information).

IV. Final Action

    EPA is taking final actions regarding Florida's request to 
redesignate the Hillsborough County Area to attainment for the 2010 1-
hour SO2 NAAQS and associated SIP revision. EPA is 
determining that the Hillsborough County Area attained the 2010 1-hour 
SO2 NAAQS by its applicable attainment date of October 4, 
2018. EPA is also approving the SIP revision containing the State's 
plan for maintaining attainment of the 2010 1-hour SO2 
standard and incorporating the maintenance plan into the SIP. EPA is 
approving Florida's redesignation request and redesignating the 
Hillsborough County Area to attainment for the 2010 1-hour 
SO2 NAAQS. Finally, EPA is incorporating the aforementioned 
permit conditions for Big Bend into the SIP. As mentioned above, 
approval of the redesignation request changes the official designation 
of the Hillsborough County Area from nonattainment to attainment, as 
found in 40 CFR part 81.

IV. Statutory and Executive Order Reviews

    Under the CAA, redesignation of an area to attainment and the 
accompanying approval of a maintenance plan under section 107(d)(3)(E) 
are actions that affect the status of a geographical area and do not 
impose any additional regulatory requirements on sources beyond those 
imposed by state law. A redesignation to attainment does not in and of 
itself create any new requirements, but rather results in the 
applicability of requirements contained in the CAA for areas that have 
been redesignated to attainment. Moreover, 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. 
Accordingly, these actions merely approve state law as meeting Federal 
requirements and do not impose additional requirements beyond those 
imposed by state law. For this reason, these actions:
     Are not significant regulatory actions 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);
     Are not Executive Order 13771 (82 FR 9339, February 2, 
2017) regulatory actions because redesignations and SIP approvals are 
exempted under Executive Order 12866;
     Do not impose information collection burdens under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Are 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.);
     Do 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);
     Do not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Are not economically significant regulatory actions based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     Are not significant regulatory actions subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Are 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
     Will not have disproportionate human health or 
environmental effects under Executive Order 12898 (59 FR 7629, February 
16, 1994).
    These actions are 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 January 13, 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

40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Sulfur dioxide, Reporting and 
recordkeeping requirements.

 40 CFR Part 81

    Environmental protection, Air pollution control.

    Dated: October 10, 2019.
Mary S. Walker,
Regional Administrator, Region 4.

    40 CFR parts 52 and 81 are amended as follows:

[[Page 60931]]

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 K--Florida

0
2. Section 52.520 is amended by:
0
a. In paragraph (d), revising the entry for ``Tampa Electric Company--
Big Bend Station'' Air Permit No. 0570039-074-AC,
0
b. In paragraph (d), adding a new entry for ``Tampa Electric Company--
Big Bend Station'' at the end of the table, and
0
c. In paragraph (e), adding a new entry for ``2010 1-hour 
SO2 Maintenance Plan for the Hillsborough Area'' at the end 
of the table to read as follows.

Sec.  52.520   Identification of plan.

* * * * *
    (d) * * *

                                EPA-Approved Florida Source-Specific Requirements
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                                                          State
         Name of source              Permit No.      effective date   EPA approval date        Explanation
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
Tampa Electric Company-Big Bend  Air Permit No.           2/26/2015  7/3/2017, 82 FR     Only Section 3,
 Station.                         0570039-074-AC.                     30749.              Subsection B,
                                                                                          Condition 5.
 
                                                  * * * * * * *
Tampa Electric Company-Big Bend  Air Permit No.          12/14/2018  11/12/2019 [Insert  Only Section 2,
 Station.                         0570039-120-AC.                     citation of         Condition 4; the ``SO2
                                                                      publication].       Emissions Cap''
                                                                                          provision from Section
                                                                                          3, Condition 4; the
                                                                                          ``SO2 CEMS'' provision
                                                                                          from Section 3,
                                                                                          Condition 4; and the
                                                                                          ``Methods of
                                                                                          Operation'' for Units
                                                                                          1 and 2 provision from
                                                                                          Section 3, Condition
                                                                                          6.
----------------------------------------------------------------------------------------------------------------

    (e) ``

                                 EPA-Approved Florida Non-Regulatory Provisions
----------------------------------------------------------------------------------------------------------------
                                        State       EPA approval    Federal Register,
            Provision              effective date       date              notice               Explanation
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
2010 1-hour SO2 Maintenance Plan         6/7/2018      11/12/2019  [Insert citation of
 for the Hillsborough Area.                                         publication].
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PART 81--DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES

0
3. The authority citation for part 81 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

0
4. In Sec.  81.310, the table entitled ``Florida-2010 Sulfur Dioxide 
NAAQS (Primary)'' is amended by revising the entry for ``Hillsborough 
County, FL'' to read as follows:

Sec.  81.310   Florida.

* * * * *

               Florida-2010 Sulfur Dioxide NAAQS (Primary)
------------------------------------------------------------------------
                                                    Designation
             Designated area             -------------------------------
                                             Date \1\          Type
------------------------------------------------------------------------
Hillsborough County, FL \2\.............      12/12/2019      Attainment
    Hillsborough County (part)..........
        That portion of Hillsborough
         County encompassed by the
         polygon with the vertices using
         Universal Traverse Mercator
         (UTM) coordinates in UTM zone
         17 with datum NAD83 as follows:
         (1) Vertices-UTM Easting (m)
         358581, UTM Northing 3076066;
         (2) vertices-UTM Easting (m)
         355673, UTM Northing 3079275;
         (3) UTM Easting (m) 360300, UTM
         Northing 3086380; (4) vertices-
         UTM Easting (m) 366850, UTM
         Northing 3086692; (5) vertices-
         UTM Easting (m) 368364, UTM
         Northing 3083760; and (6)
         vertices-UTM Easting (m)
         365708, UTM Northing 3079121...
 
                              * * * * * * *
------------------------------------------------------------------------
\1\ This date is 4/9/2018, unless otherwise noted.
\2\ Excludes Indian country located in each area, if any, unless
  otherwise specified.
\3\ Includes any Indian country in each county or area, unless otherwise
  specified. The EPA is not determining the boundaries of any area of
  Indian country in this table, including any area of Indian country
  located in the larger designation area. The inclusion of any Indian
  country in the designation area is not a determination that the state
  has regulatory authority under the Clean Air Act for such Indian
  country.

* * * * *
[FR Doc. 2019-23375 Filed 11-8-19; 8:45 am]
 BILLING CODE 6560-50-P