Air Plan Approval; KY; Miscellaneous Source Specific Revisions for Jefferson County, 37375-37378 [2017-16818]
Download as PDF
Federal Register / Vol. 82, No. 153 / Thursday, August 10, 2017 / Proposed Rules
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R04–OAR–2017–0356; FRL–9966–01–
Region 4]
Air Plan Approval; KY; Miscellaneous
Source Specific Revisions for
Jefferson County
Environmental Protection
Agency (EPA).
ACTION: Proposed rule.
AGENCY:
The Environmental Protection
Agency (EPA) is proposing to approve
revisions to the Kentucky State
Implementation Plan (SIP), submitted
by the Commonwealth of Kentucky,
through the Kentucky Division for Air
Quality (KDAQ), on March 21, 2011,
October 29, 2013, October 28, 2016, and
March 24, 2017. The proposed revisions
were submitted by KDAQ on behalf of
the Louisville Metro Air Pollution
Control District (District), which has
jurisdiction over Jefferson County,
Kentucky. The revisions include
changes to Jefferson County Regulations
regarding Reasonably Available Control
Technology (RACT) for two major
sources of nitrogen oxides (NOX) and
the removal of a volatile organic
compounds (VOC) bubble rule.
DATES: Comments must be received on
or before September 11, 2017.
ADDRESSES: Submit your comments,
identified by Docket ID No. EPA–R04–
OAR–2017–0356 at https://
www.regulations.gov. Follow the online
instructions for submitting comments.
Once submitted, comments cannot be
edited or removed from regulations.gov.
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, 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: Joel
Huey, Air Planning and Implementation
mstockstill on DSK30JT082PROD with PROPOSALS
SUMMARY:
VerDate Sep<11>2014
16:24 Aug 09, 2017
Jkt 241001
Branch, Air, Pesticides and Toxics
Management Division, U.S.
Environmental Protection Agency,
Region 4, 61 Forsyth Street SW.,
Atlanta, Georgia 30303–8960 or Andres
Febres, Air Regulatory Management
Section, Air Planning and
Implementation Branch, Air, Pesticides
and Toxics Management Division, U.S.
Environmental Protection Agency,
Region 4, 61 Forsyth Street SW.,
Atlanta, Georgia 30303–8960. Mr. Huey
can be reached by telephone at (404)
562–9104 or via electronic mail at
huey.joel@epa.gov. Mr. Febres can be
reached by telephone at (404) 562–8966
or via electronic mail at febresmartinez.andres@epa.gov.
SUPPLEMENTARY INFORMATION:
I. What action is EPA proposing?
EPA is proposing to approve changes
to the Jefferson County portion of the
Kentucky SIP that were received by EPA
on March 21, 2011. Approval of
Kentucky’s March 21, 2011, submission
would: (1) Make several changes to
Regulation 6.29, Standard of
Performance for Graphic Arts Facilities
Using Rotogravure or Flexographic
Printing; (2) remove Regulation 7.57,
Standard of Performance for New
Graphic Arts Facilities Using
Rotogravure or Flexographic Printing;
(3) incorporate Amendment 4 to the
Louisville Medical Steam Plant NOX
RACT Board Order into the Jefferson
County portion of the Kentucky SIP; (4)
incorporate Amendment 3 to the Texas
Gas Transmission NOX RACT Board
Order into the Jefferson County portion
of the Kentucky SIP; and (5) remove a
VOC bubble rule for the General Electric
plant in Louisville, Kentucky. This
action also proposes to approve three
SIP revisions received by EPA on
October 29, 2013, October 28, 2016, and
March 24, 2017, which modify the
March 21, 2011, submittal as discussed
below.
II. What is the background and EPA’s
analysis for the proposed actions?
On March 21, 2011, the Louisville
Metro Air Pollution Control District,1
through KDAQ, submitted a SIP revision
with five separate parts. The following
paragraphs discuss the background and
1 In 2003, the City of Louisville and Jefferson
County governments merged and the ‘‘Jefferson
County Air Pollution Control District’’ was renamed
the ‘‘Louisville Metro Air Pollution Control
District.’’ However, each of the regulations in the
Jefferson County portion of the Kentucky SIP still
has the subheading ‘‘Air Pollution Control District
of Jefferson County.’’ Thus, to be consistent with
the terminology used in the SIP, we refer
throughout this notice to regulations contained in
the Jefferson County portion of the Kentucky SIP as
the ‘‘Jefferson County’’ regulations.
PO 00000
Frm 00016
Fmt 4702
Sfmt 4702
37375
EPA’s assessment of each part of that
submittal as well as the three
subsequent submittals that revised the
third and fourth parts (the NOX RACT
Board Orders for the Louisville Medical
Steam Plant and the Texas Gas
Transmission facility, respectively).
(1) Regulation 6.29, Standard of
Performance for Graphic Arts Facilities
Using Rotogravure or Flexographic
Printing
Jefferson County Air Quality
Regulation 6.29 applies to each printing
line for packaging rotogravure,
publication rotogravure, specialty
rotogravure, and/or flexographic
printing that commenced operation
before February 4, 1981. Kentucky’s
March 21, 2011, revision adds a new
Section 3.2, which specifies that
compliance with the VOC limits shall be
based upon materials used during a
calendar-day averaging period, but that
the ‘‘District may specifically authorize
compliance to be based upon a longer
averaging period that shall not exceed
one calendar month.’’ Although the
existing SIP-approved rule does not
specify the averaging time for
compliance determination, EPA
understands it to be 24 hours (based
upon the daily recordkeeping
requirement of Section 7.1). EPA
believes that the proposed averaging
times for compliance determination for
up to one month would not result in any
change in pollutant emissions because
such allowances would be authorized
only for facilities that generally use
materials having little variation in VOC
content. In addition, EPA notes that the
approach of compliance determination
based on averaging periods of up to one
month is consistent with EPA’s federal
rules regulating this industry, including
the New Source Performance Standards
(NSPS) for the Graphic Arts Industry
(Publication Rotogravure Printing) at 40
CFR part 60, subpart QQ, and the
National Emission Standards for
Hazardous Air Pollutants (NESHAPs)
for the Printing and Publishing Industry
at 40 CFR part 63, subpart KK. See, e.g.,
40 CFR 60.434(a)(1) and 40 CFR
63.825(b)(2).
The March 21, 2011, revision also
amends Regulation 6.29 to allow
material usage recordkeeping
requirements to reflect the approved
averaging period rather than the daily
recordkeeping requirement of the
existing SIP-approved rule. The inks
and coatings used during a longer time
period would be prorated to the
appropriate compliance period based
upon a measured parameter, such as
linear feet of substrate printed. In
addition, while the current SIP-
E:\FR\FM\10AUP1.SGM
10AUP1
37376
Federal Register / Vol. 82, No. 153 / Thursday, August 10, 2017 / Proposed Rules
approved rule requires the owner or
operator to keep records of materials
used for the most recent two-year
period, the revised rule would require
that records be maintained for the most
recent five-year period (revised Section
6.1).
Regulation 6.29 has also been revised
such that it applies to all rotogravure
and flexographic printing lines
operating within the District. Section 1
(Applicability) of the current SIPapproved rule provides that the
regulation applies to each affected
facility that commenced operation
before February 4, 1981. ‘‘Affected
facility’’ is defined in the current SIPapproved rule as ‘‘a printing line for
packaging rotogravure, publication
rotogravure, specialty rotogravure, or
flexographic printing.’’ Under the
revised rule, the Applicability section is
moved to Section 2 and provides that
the rule applies to each printing line for
packaging rotogravure, publication
rotogravure, specialty rotogravure, or
flexographic printing (regardless of
commencement date 2) and that new or
modified affected facilities shall comply
with all standards of the rule upon
commencing operation.
Another change to Regulation 6.29 is
that Section 5, ‘‘Exemption,’’ has been
deleted, and the ink and coating VOC
content specifications of that section
have been relocated to Section 3,
Standard for Volatile Organic
Compounds, such that they are
recognized as material usage limits
rather than exemptions to compliance
requirements. Finally, several nonsubstantive language changes have been
made to Regulation 6.29 for consistency
with other current Jefferson County
regulations. EPA has evaluated these
requested changes believes they will not
interfere with the Louisville Area’s
ability to attain and maintain the
national ambient air quality standards
(NAAQS). Therefore, EPA proposes to
approve these changes to Regulation
6.29.
mstockstill on DSK30JT082PROD with PROPOSALS
(2) Regulation 7.57, Standard of
Performance for New Graphic Arts
Facilities Using Rotogravure or
Flexographic Printing
Regulation 7.57 applies to the same
type of printing lines as Regulation 6.29,
but it applies to ‘‘new’’ units, defined as
those that commenced operation on or
after February 4, 1981. Kentucky’s
March 21, 2011, submittal proposes to
remove Regulation 7.57 from the SIP. As
2 New printing lines of these types are currently
regulated pursuant to Regulation 7.57, the proposed
removal of which is discussed in Section II.(2)
below.
VerDate Sep<11>2014
16:24 Aug 09, 2017
Jkt 241001
noted above, Regulation 6.29 has been
revised such that it applies to all
rotogravure and flexographic printing
lines, regardless of their date of
operational commencement. EPA has
reviewed the revised Regulation 6.29
and has preliminarily determined that it
regulates the sources with the same
stringency as Regulation 7.57.
Therefore, because Regulation 6.29 as
revised will apply to all subject printing
lines within the District’s jurisdiction,
Regulation 7.57 would be duplicative
and unnecessary. EPA proposes to
approve the removal of Regulation 7.57
from the SIP.
(3) Louisville Medical Center Steam
Plant—NOX RACT Board Order
Jefferson County Air Quality
Regulation 6.42 (Reasonably Available
Control Technology Requirements for
Major Volatile Organic Compound- and
Nitrogen Oxides-Emitting Facilities)
requires the establishment and
implementation of RACT for certain
affected facilities that are located at a
major stationary source for NOX. Section
4.4 of Regulation 6.42 requires that each
determination of RACT approved by the
District be submitted to EPA as a sitespecific revision of the Kentucky SIP.
The Louisville Medical Center Steam
Plant (Medical Center) operates six
boilers that provide heat to buildings
associated with the downtown hospital
medical complex and is subject to a title
V operating permit issued by the
District. The initial Medical Center NOX
RACT Board Order was approved by the
Air Pollution Control Board of Jefferson
County (APC Board-JC) on November 8,
1999, and submitted to EPA by KDAQ
on November 12, 1999, as a site-specific
revision of the Kentucky SIP.
Amendment 1 to the Medical Center
Board Order, issued on February 21,
2001, was submitted to EPA and
approved into the SIP on October 23,
2001. See 66 FR 53685.
The March 21, 2011, submittal
includes the District’s second
amendment to the Medical Center Board
Order and requests withdrawal of
Amendment 1. However, on October 29,
2013, the District submitted a third
amendment to the Medical Center Board
Order and requested withdrawal of the
second one, and on April 4, 2017, the
District submitted a fourth amendment
to the Medical Center Board Order and
requested withdrawal of the third one.
No federal approval action has been
taken on the second or third
amendments to the Medical Center
Board Order.
On March 19, 2008, the APC–JC Board
adopted Amendment 2 to the Medical
Center Board Order. Amendment 2
PO 00000
Frm 00017
Fmt 4702
Sfmt 4702
changed the fuel for Boiler #1 from coal
to natural gas, removed the 10 percent
‘‘seasonal capacity factor’’ and added a
0.10 pound per million British thermal
unit (lb/MMBtu) heat input limit for
that boiler. On August 21, 2013, the
Louisville Metro Air Pollution Control
Board (LMAPC Board; formerly, the
APC–JC Board) adopted Amendment 3
to the Medical Center Board Order.
Amendment 3 removed the 10 percent
seasonal capacity factor for Boiler #3
(since the coal stoker was removed and
replaced with a low NOX burner) and
added a 0.20 lb/MMBtu heat input limit
for that boiler.
On January 18, 2017, the LMAPC
Board adopted Amendment 4 to the
Medical Center Board Order.
Amendment 4 replaces the emission
rate limits for Boiler #1 and Boiler #3
(0.10 and 0.20 lb/MMBtu, respectively)
with new limits on total NOX emissions
(a 32.8 tons annual NOX limit and a 4.0
tons ozone season NOX limit for both
boilers). As shown in the District’s
supporting documentation included in
the submittal, the new ozone season
NOX limit of 4.0 tons is more
conservative than the potential to emit
of 4.04 tons during ozone season (based
on the previous 10 percent seasonal
capacity factor), and the new annual
NOX limit of 32.8 tons is the same as the
potential to emit of 32.8 tons per year
(based on the previous 10 percent
seasonal capacity factor). Thus, the
Medical Center Board Order changes
between Amendment 1 (the version
currently approved in the SIP) and
Amendment 4 for Boilers #1 and #3
result in a potential emissions reduction
of 0.04 tons of NOX per boiler during the
ozone season. Other changes included
in Amendment 4 are clarification of the
averaging period for the NOX emission
limits as a 30-day rolling average; the
addition of annual performance testing
and record of non-routine boiler
maintenance activities for Boilers #1
and #3; elimination of an obsolete
requirement for the Medical Center to
submit a report of daily activities and
procedures by April 1, 2001; and
elimination of obsolete requirements
related to compliance and
recordkeeping on seasonal capacity
factors, which originally applied only to
Boilers #1 and #3 but no longer apply.
EPA preliminarily agrees with the
District that the Amendment 4 to
Medical Center Board Order achieves at
least the same level of NOX emission
reductions as the previously approved
Amendment 1. Therefore, EPA proposes
to approve the April 4, 2017, revision as
Amendment 4 to the Medical Center
Board Order.
E:\FR\FM\10AUP1.SGM
10AUP1
Federal Register / Vol. 82, No. 153 / Thursday, August 10, 2017 / Proposed Rules
mstockstill on DSK30JT082PROD with PROPOSALS
(4) Texas Gas Transmission—NOX
RACT Board Order
As discussed above, Jefferson County
Air Quality Regulation 6.42 requires the
establishment and implementation of
RACT for certain affected facilities that
are located at a major stationary source
for NOX. The initial Texas Gas
Transmission (Texas Gas) NOX RACT
Board Order was approved by the APC–
JC Board on November 8, 1999, and
submitted to EPA by KDAQ on
November 12, 1999, as a site-specific
revision of the Kentucky SIP.
Amendment 1 to the Texas Gas Board
Order, issued on December 20, 2000,
was submitted to EPA and approved
into the SIP on October 23, 2001. See 66
FR 53685.
The March 21, 2011, submittal
includes the District’s second
amendment to the Texas Gas Board
Order and requests withdrawal of
Amendment 1. However, on October 28,
2016, the District submitted a third
amendment to the Texas Gas Board
Order and requested withdrawal of
second one. No federal approval action
has been taken on the second
amendment to the Texas Gas Board
Order.
On June 17, 2009, the APC–JC Board
adopted Amendment 2 to the Texas Gas
Board Order. Amendment 2 removed
the compressor turbine T–1 emission
requirements due to the removal of the
unit from the facility in 2005, added
emission requirements for new
compressor turbine E–22, and added a
requirement that combustion
performance modifications performed
on the nine reciprocating internal
combustion engine compressors remain
in place to ensure NOX emission limits
are achieved.
On May 18, 2016, the LMAPC Board
adopted Amendment 3 to the Texas Gas
Board Order. Amendment 3 introduces
the emission limits and work practice
standards for engine E28 to bring it up
to date with EPA’s NESHAP for
Stationary Reciprocating Internal
Combustion Engines (40 CFR 63,
subpart ZZZZ) as revised in 2013 (see
78 FR 6674); modifies the emission
testing schedule for Compressor Engines
El–E9 and Turbine E22; and more
clearly specifies the emission limits and
testing, recordkeeping, and reporting
requirements for each of the covered
sources.
Regarding the performance testing
schedule for Compressor Engines El–E6,
Amendment 3 requires the same 6-year
testing period for each engine as the
approved Amendment 1. For
Compressor Engines E7–E9,
Amendment 3 also requires a 6-year
VerDate Sep<11>2014
16:24 Aug 09, 2017
Jkt 241001
testing period for each engine, although
these engines are required to be tested
every three years under the approved
Amendment 1. EPA believes the
reduced testing frequency for
Compressor Engines E7–E9 is
appropriate because these units are of
the same type as Compressor Engines
E1–E6, which have a six-year testing
requirement, and the revised schedule
requires performance testing of all nine
of the facility’s compressor engines
within each 6-year period. For Turbine
E22, the performance testing schedule is
reduced from every two years to every
six years. EPA believes this reduced
testing frequency is appropriate because
new condition 7 of Amendment 3
requires the owner or operator to
continuously monitor and record
appropriate parameters to demonstrate
that the unit is operating in low-NOX
mode, as required under 40 CFR
60.334(f)(2), thus minimizing NOX
emissions. Further, if any of these units,
E1–E9 and E22, fails to demonstrate
compliance with standards at any time,
a new provision under condition 15 of
Amendment 3 requires that the unit be
taken out of service until maintenance
has been performed and the unit has
been re-tested and has demonstrated
compliance. In addition, the LMAPC
Board notes that units E1–E9 and E22
have shown historical emission levels
are significantly less than the regulatory
limits.
EPA preliminarily agrees with the
District that Amendment 3 to the Texas
Gas Board Order achieves the same level
of NOX emission reductions as the
previously approved Amendment 1.
Therefore, EPA proposes to approve the
October 28, 2016, revision as
Amendment 3 to the Texas Gas Board
Order.
(5) General Electric—Remove the Bubble
Action Approved on January 12, 1982
In 1982, EPA approved a revision to
the Kentucky SIP that allowed an
alternative emission reduction plan in
the form of a ‘‘bubble rule’’ for the
General Electric plant in Louisville,
Kentucky. See 47 FR 1291 (January 12,
1982). The sources affected by that SIP
revision were the Koch Plastisol Prime
System and the Koch Wire Rack Prime
System. The revision allowed the plant
to achieve compliance with Kentucky
and Jefferson County VOC regulations
for existing large appliance surface
coating operations. Kentucky’s March
21, 2011, submittal requests removal of
this bubble rule for the General Electric
plant because the subject equipment has
been disabled and the associated
permits have been voided for the
facility. EPA proposes to approve the
PO 00000
Frm 00018
Fmt 4702
Sfmt 4702
37377
removal of the ‘‘Bubble action at
General Electric in Louisville’’ from the
Kentucky SIP.
III. Incorporation by Reference
In this rule, EPA is proposing
regulatory text that includes
incorporation by reference. In
accordance with requirements of 1 CFR
51.5, EPA is proposing the
incorporation by reference of Jefferson
County’s Regulation 6.29, Standard of
Performance for Graphic Arts Facilities
Using Rotogravure or Flexographic
Printing, effective August 21, 2013;
‘‘Board Order Texas Gas Transmission’’
NOX RACT Plan, effective May 18, 2016;
and ‘‘Board Order Louisville Medical
Center Steam Plant’’ NOX RACT Plan,
effective January 18, 2017. EPA has
made, and will continue to make, these
materials generally available through
www.regulations.gov and/or 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. Proposed Actions
EPA is proposing to approve changes
to the Jefferson County Air Quality
Regulations portion of the Kentucky
SIP. The requested revisions were
provided by KDAQ to EPA on March 21,
2011, October 29, 2013, October 28,
2016, and March 24, 2017. The changes
proposed for approval would: (1)
Modify Regulation 6.29, (2) remove
Regulation 7.57, (3) incorporate
Amendment 4 to the NOX RACT Board
Order for the Louisville Medical Center
Steam Plant into the Jefferson County
portion of the Kentucky SIP, (4)
incorporate Amendment 3 to NOX
RACT Board Order for the Texas Gas
Transmission facility into the Kentucky
SIP, and (5) remove the VOC bubble rule
for the General Electric plant in
Louisville, Kentucky. EPA believes
these changes are consistent with the
requirements of the CAA.
V. 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. Accordingly, this proposed
action merely proposes to approve state
law as meeting federal requirements and
does not impose additional
requirements beyond those imposed by
state law. For that reason, this proposed
action:
E:\FR\FM\10AUP1.SGM
10AUP1
37378
Federal Register / Vol. 82, No. 153 / Thursday, August 10, 2017 / Proposed Rules
• 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 (Public Law 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.
mstockstill on DSK30JT082PROD with PROPOSALS
List of Subjects in 40 CFR Part 52
Environmental protection, Air
pollution control, Incorporation by
reference, Intergovernmental relations,
Nitrogen dioxide, Particulate matter,
Reporting and recordkeeping
requirements, Sulfur oxides, Volatile
organic compounds.
Authority: 42 U.S.C. 7401 et seq.
VerDate Sep<11>2014
16:24 Aug 09, 2017
Jkt 241001
Dated: July 28, 2017.
V. Anne Heard,
Acting Regional Administrator, Region 4.
[FR Doc. 2017–16818 Filed 8–9–17; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R04–OAR–2014–0507; FRL–9965–82Region 4]
Air Plan Approval; Florida:
Infrastructure Requirements for the
2010 NO2 NAAQS
Environmental Protection
Agency.
ACTION: Proposed rule.
AGENCY:
The Environmental Protection
Agency (EPA) is approving a portion of
the State Implementation Plan (SIP)
submission, submitted by the State of
Florida, through the Florida Department
of Environmental Protection, on January
22, 2013, addressing the Clean Air Act
(CAA or Act) infrastructure
requirements for the 2010 1-hour
nitrogen dioxide (NO2) national ambient
air quality standard (NAAQS). The CAA
requires that each state adopt and
submit a SIP for the implementation,
maintenance and enforcement of each
NAAQS promulgated by EPA, which is
commonly referred to as an
‘‘infrastructure SIP submission.’’
Specifically, EPA is approving the
portion of Florida’s January 22, 2013,
SIP submission addressing element B of
the infrastructure requirements, which
relates to monitoring requirements. EPA
is proposing that Florida’s infrastructure
SIP submission, provided to EPA on
January 22, 2013, satisfies the
infrastructure requirements related to
monitoring for the 2010 1-hour NO2
NAAQS.
SUMMARY:
Written comments must be
received on or before September 11,
2017.
DATES:
Submit your comments,
identified by Docket ID No. EPA–R04–
OAR–2017–0507 at https://
www.regulations.gov. Follow the online
instructions for submitting comments.
Once submitted, comments cannot be
edited or removed from Regulations.gov.
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
ADDRESSES:
PO 00000
Frm 00019
Fmt 4702
Sfmt 4702
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, 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:
Andres Febres of the Air Regulatory
Management Section, Air Planning and
Implementation Branch, Air, Pesticides
and Toxics Management Division, U.S.
Environmental Protection Agency,
Region 4, 61 Forsyth Street SW.,
Atlanta, Georgia 30303–8960. Mr.
Febres can be reached via telephone at
(404) 562–8966 or via electronic mail at
febres-martinez.andres@epa.gov.
SUPPLEMENTARY INFORMATION: In the
Final Rules section of this issue of the
Federal Register, EPA is approving this
portion of Florida’s January 22, 2013,
SIP revision addressing the section
110(a)(2)(B) SIP requirements for the
2010 1-hour NO2 NAAQS. A detailed
rationale for the approval is set forth in
the direct final rule and incorporated
herein by reference. If no adverse
comments are received in response to
this rule, no further activity is
contemplated. If EPA receives adverse
comments, the direct final rule will be
withdrawn and all adverse comments
received will be addressed in a
subsequent final rule based on this
proposed rule. EPA will not institute a
second comment period on this
document. Any parties interested in
commenting on this document should
do so at this time.
Dated: July 26, 2017.
V. Anne Heard,
Acting Regional Administrator, Region 4.
[FR Doc. 2017–16808 Filed 8–9–17; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R04–OAR–2016–0547; FRL–9965–84–
Region 4]
Air Plan Approval; SC: Revisions to
New Source Review Rules
Environmental Protection
Agency (EPA).
AGENCY:
E:\FR\FM\10AUP1.SGM
10AUP1
Agencies
[Federal Register Volume 82, Number 153 (Thursday, August 10, 2017)]
[Proposed Rules]
[Pages 37375-37378]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-16818]
[[Page 37375]]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R04-OAR-2017-0356; FRL-9966-01-Region 4]
Air Plan Approval; KY; Miscellaneous Source Specific Revisions
for Jefferson County
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule.
-----------------------------------------------------------------------
SUMMARY: The Environmental Protection Agency (EPA) is proposing to
approve revisions to the Kentucky State Implementation Plan (SIP),
submitted by the Commonwealth of Kentucky, through the Kentucky
Division for Air Quality (KDAQ), on March 21, 2011, October 29, 2013,
October 28, 2016, and March 24, 2017. The proposed revisions were
submitted by KDAQ on behalf of the Louisville Metro Air Pollution
Control District (District), which has jurisdiction over Jefferson
County, Kentucky. The revisions include changes to Jefferson County
Regulations regarding Reasonably Available Control Technology (RACT)
for two major sources of nitrogen oxides (NOX) and the
removal of a volatile organic compounds (VOC) bubble rule.
DATES: Comments must be received on or before September 11, 2017.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R04-
OAR-2017-0356 at https://www.regulations.gov. Follow the online
instructions for submitting comments. Once submitted, comments cannot
be edited or removed from regulations.gov. 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, 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: Joel Huey, Air Planning and
Implementation Branch, Air, Pesticides and Toxics Management Division,
U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street SW.,
Atlanta, Georgia 30303-8960 or Andres Febres, Air Regulatory Management
Section, Air Planning and Implementation Branch, Air, Pesticides and
Toxics Management Division, U.S. Environmental Protection Agency,
Region 4, 61 Forsyth Street SW., Atlanta, Georgia 30303-8960. Mr. Huey
can be reached by telephone at (404) 562-9104 or via electronic mail at
huey.joel@epa.gov. Mr. Febres can be reached by telephone at (404) 562-
8966 or via electronic mail at febres-martinez.andres@epa.gov.
SUPPLEMENTARY INFORMATION:
I. What action is EPA proposing?
EPA is proposing to approve changes to the Jefferson County portion
of the Kentucky SIP that were received by EPA on March 21, 2011.
Approval of Kentucky's March 21, 2011, submission would: (1) Make
several changes to Regulation 6.29, Standard of Performance for Graphic
Arts Facilities Using Rotogravure or Flexographic Printing; (2) remove
Regulation 7.57, Standard of Performance for New Graphic Arts
Facilities Using Rotogravure or Flexographic Printing; (3) incorporate
Amendment 4 to the Louisville Medical Steam Plant NOX RACT
Board Order into the Jefferson County portion of the Kentucky SIP; (4)
incorporate Amendment 3 to the Texas Gas Transmission NOX
RACT Board Order into the Jefferson County portion of the Kentucky SIP;
and (5) remove a VOC bubble rule for the General Electric plant in
Louisville, Kentucky. This action also proposes to approve three SIP
revisions received by EPA on October 29, 2013, October 28, 2016, and
March 24, 2017, which modify the March 21, 2011, submittal as discussed
below.
II. What is the background and EPA's analysis for the proposed actions?
On March 21, 2011, the Louisville Metro Air Pollution Control
District,\1\ through KDAQ, submitted a SIP revision with five separate
parts. The following paragraphs discuss the background and EPA's
assessment of each part of that submittal as well as the three
subsequent submittals that revised the third and fourth parts (the
NOX RACT Board Orders for the Louisville Medical Steam Plant
and the Texas Gas Transmission facility, respectively).
---------------------------------------------------------------------------
\1\ In 2003, the City of Louisville and Jefferson County
governments merged and the ``Jefferson County Air Pollution Control
District'' was renamed the ``Louisville Metro Air Pollution Control
District.'' However, each of the regulations in the Jefferson County
portion of the Kentucky SIP still has the subheading ``Air Pollution
Control District of Jefferson County.'' Thus, to be consistent with
the terminology used in the SIP, we refer throughout this notice to
regulations contained in the Jefferson County portion of the
Kentucky SIP as the ``Jefferson County'' regulations.
---------------------------------------------------------------------------
(1) Regulation 6.29, Standard of Performance for Graphic Arts
Facilities Using Rotogravure or Flexographic Printing
Jefferson County Air Quality Regulation 6.29 applies to each
printing line for packaging rotogravure, publication rotogravure,
specialty rotogravure, and/or flexographic printing that commenced
operation before February 4, 1981. Kentucky's March 21, 2011, revision
adds a new Section 3.2, which specifies that compliance with the VOC
limits shall be based upon materials used during a calendar-day
averaging period, but that the ``District may specifically authorize
compliance to be based upon a longer averaging period that shall not
exceed one calendar month.'' Although the existing SIP-approved rule
does not specify the averaging time for compliance determination, EPA
understands it to be 24 hours (based upon the daily recordkeeping
requirement of Section 7.1). EPA believes that the proposed averaging
times for compliance determination for up to one month would not result
in any change in pollutant emissions because such allowances would be
authorized only for facilities that generally use materials having
little variation in VOC content. In addition, EPA notes that the
approach of compliance determination based on averaging periods of up
to one month is consistent with EPA's federal rules regulating this
industry, including the New Source Performance Standards (NSPS) for the
Graphic Arts Industry (Publication Rotogravure Printing) at 40 CFR part
60, subpart QQ, and the National Emission Standards for Hazardous Air
Pollutants (NESHAPs) for the Printing and Publishing Industry at 40 CFR
part 63, subpart KK. See, e.g., 40 CFR 60.434(a)(1) and 40 CFR
63.825(b)(2).
The March 21, 2011, revision also amends Regulation 6.29 to allow
material usage recordkeeping requirements to reflect the approved
averaging period rather than the daily recordkeeping requirement of the
existing SIP-approved rule. The inks and coatings used during a longer
time period would be prorated to the appropriate compliance period
based upon a measured parameter, such as linear feet of substrate
printed. In addition, while the current SIP-
[[Page 37376]]
approved rule requires the owner or operator to keep records of
materials used for the most recent two-year period, the revised rule
would require that records be maintained for the most recent five-year
period (revised Section 6.1).
Regulation 6.29 has also been revised such that it applies to all
rotogravure and flexographic printing lines operating within the
District. Section 1 (Applicability) of the current SIP-approved rule
provides that the regulation applies to each affected facility that
commenced operation before February 4, 1981. ``Affected facility'' is
defined in the current SIP-approved rule as ``a printing line for
packaging rotogravure, publication rotogravure, specialty rotogravure,
or flexographic printing.'' Under the revised rule, the Applicability
section is moved to Section 2 and provides that the rule applies to
each printing line for packaging rotogravure, publication rotogravure,
specialty rotogravure, or flexographic printing (regardless of
commencement date \2\) and that new or modified affected facilities
shall comply with all standards of the rule upon commencing operation.
---------------------------------------------------------------------------
\2\ New printing lines of these types are currently regulated
pursuant to Regulation 7.57, the proposed removal of which is
discussed in Section II.(2) below.
---------------------------------------------------------------------------
Another change to Regulation 6.29 is that Section 5, ``Exemption,''
has been deleted, and the ink and coating VOC content specifications of
that section have been relocated to Section 3, Standard for Volatile
Organic Compounds, such that they are recognized as material usage
limits rather than exemptions to compliance requirements. Finally,
several non-substantive language changes have been made to Regulation
6.29 for consistency with other current Jefferson County regulations.
EPA has evaluated these requested changes believes they will not
interfere with the Louisville Area's ability to attain and maintain the
national ambient air quality standards (NAAQS). Therefore, EPA proposes
to approve these changes to Regulation 6.29.
(2) Regulation 7.57, Standard of Performance for New Graphic Arts
Facilities Using Rotogravure or Flexographic Printing
Regulation 7.57 applies to the same type of printing lines as
Regulation 6.29, but it applies to ``new'' units, defined as those that
commenced operation on or after February 4, 1981. Kentucky's March 21,
2011, submittal proposes to remove Regulation 7.57 from the SIP. As
noted above, Regulation 6.29 has been revised such that it applies to
all rotogravure and flexographic printing lines, regardless of their
date of operational commencement. EPA has reviewed the revised
Regulation 6.29 and has preliminarily determined that it regulates the
sources with the same stringency as Regulation 7.57. Therefore, because
Regulation 6.29 as revised will apply to all subject printing lines
within the District's jurisdiction, Regulation 7.57 would be
duplicative and unnecessary. EPA proposes to approve the removal of
Regulation 7.57 from the SIP.
(3) Louisville Medical Center Steam Plant--NOX RACT Board
Order
Jefferson County Air Quality Regulation 6.42 (Reasonably Available
Control Technology Requirements for Major Volatile Organic Compound-
and Nitrogen Oxides-Emitting Facilities) requires the establishment and
implementation of RACT for certain affected facilities that are located
at a major stationary source for NOX. Section 4.4 of
Regulation 6.42 requires that each determination of RACT approved by
the District be submitted to EPA as a site-specific revision of the
Kentucky SIP. The Louisville Medical Center Steam Plant (Medical
Center) operates six boilers that provide heat to buildings associated
with the downtown hospital medical complex and is subject to a title V
operating permit issued by the District. The initial Medical Center
NOX RACT Board Order was approved by the Air Pollution
Control Board of Jefferson County (APC Board-JC) on November 8, 1999,
and submitted to EPA by KDAQ on November 12, 1999, as a site-specific
revision of the Kentucky SIP. Amendment 1 to the Medical Center Board
Order, issued on February 21, 2001, was submitted to EPA and approved
into the SIP on October 23, 2001. See 66 FR 53685.
The March 21, 2011, submittal includes the District's second
amendment to the Medical Center Board Order and requests withdrawal of
Amendment 1. However, on October 29, 2013, the District submitted a
third amendment to the Medical Center Board Order and requested
withdrawal of the second one, and on April 4, 2017, the District
submitted a fourth amendment to the Medical Center Board Order and
requested withdrawal of the third one. No federal approval action has
been taken on the second or third amendments to the Medical Center
Board Order.
On March 19, 2008, the APC-JC Board adopted Amendment 2 to the
Medical Center Board Order. Amendment 2 changed the fuel for Boiler #1
from coal to natural gas, removed the 10 percent ``seasonal capacity
factor'' and added a 0.10 pound per million British thermal unit (lb/
MMBtu) heat input limit for that boiler. On August 21, 2013, the
Louisville Metro Air Pollution Control Board (LMAPC Board; formerly,
the APC-JC Board) adopted Amendment 3 to the Medical Center Board
Order. Amendment 3 removed the 10 percent seasonal capacity factor for
Boiler #3 (since the coal stoker was removed and replaced with a low
NOX burner) and added a 0.20 lb/MMBtu heat input limit for
that boiler.
On January 18, 2017, the LMAPC Board adopted Amendment 4 to the
Medical Center Board Order. Amendment 4 replaces the emission rate
limits for Boiler #1 and Boiler #3 (0.10 and 0.20 lb/MMBtu,
respectively) with new limits on total NOX emissions (a 32.8
tons annual NOX limit and a 4.0 tons ozone season
NOX limit for both boilers). As shown in the District's
supporting documentation included in the submittal, the new ozone
season NOX limit of 4.0 tons is more conservative than the
potential to emit of 4.04 tons during ozone season (based on the
previous 10 percent seasonal capacity factor), and the new annual
NOX limit of 32.8 tons is the same as the potential to emit
of 32.8 tons per year (based on the previous 10 percent seasonal
capacity factor). Thus, the Medical Center Board Order changes between
Amendment 1 (the version currently approved in the SIP) and Amendment 4
for Boilers #1 and #3 result in a potential emissions reduction of 0.04
tons of NOX per boiler during the ozone season. Other
changes included in Amendment 4 are clarification of the averaging
period for the NOX emission limits as a 30-day rolling
average; the addition of annual performance testing and record of non-
routine boiler maintenance activities for Boilers #1 and #3;
elimination of an obsolete requirement for the Medical Center to submit
a report of daily activities and procedures by April 1, 2001; and
elimination of obsolete requirements related to compliance and
recordkeeping on seasonal capacity factors, which originally applied
only to Boilers #1 and #3 but no longer apply.
EPA preliminarily agrees with the District that the Amendment 4 to
Medical Center Board Order achieves at least the same level of
NOX emission reductions as the previously approved Amendment
1. Therefore, EPA proposes to approve the April 4, 2017, revision as
Amendment 4 to the Medical Center Board Order.
[[Page 37377]]
(4) Texas Gas Transmission--NOX RACT Board Order
As discussed above, Jefferson County Air Quality Regulation 6.42
requires the establishment and implementation of RACT for certain
affected facilities that are located at a major stationary source for
NOX. The initial Texas Gas Transmission (Texas Gas)
NOX RACT Board Order was approved by the APC-JC Board on
November 8, 1999, and submitted to EPA by KDAQ on November 12, 1999, as
a site-specific revision of the Kentucky SIP. Amendment 1 to the Texas
Gas Board Order, issued on December 20, 2000, was submitted to EPA and
approved into the SIP on October 23, 2001. See 66 FR 53685.
The March 21, 2011, submittal includes the District's second
amendment to the Texas Gas Board Order and requests withdrawal of
Amendment 1. However, on October 28, 2016, the District submitted a
third amendment to the Texas Gas Board Order and requested withdrawal
of second one. No federal approval action has been taken on the second
amendment to the Texas Gas Board Order.
On June 17, 2009, the APC-JC Board adopted Amendment 2 to the Texas
Gas Board Order. Amendment 2 removed the compressor turbine T-1
emission requirements due to the removal of the unit from the facility
in 2005, added emission requirements for new compressor turbine E-22,
and added a requirement that combustion performance modifications
performed on the nine reciprocating internal combustion engine
compressors remain in place to ensure NOX emission limits
are achieved.
On May 18, 2016, the LMAPC Board adopted Amendment 3 to the Texas
Gas Board Order. Amendment 3 introduces the emission limits and work
practice standards for engine E28 to bring it up to date with EPA's
NESHAP for Stationary Reciprocating Internal Combustion Engines (40 CFR
63, subpart ZZZZ) as revised in 2013 (see 78 FR 6674); modifies the
emission testing schedule for Compressor Engines El-E9 and Turbine E22;
and more clearly specifies the emission limits and testing,
recordkeeping, and reporting requirements for each of the covered
sources.
Regarding the performance testing schedule for Compressor Engines
El-E6, Amendment 3 requires the same 6-year testing period for each
engine as the approved Amendment 1. For Compressor Engines E7-E9,
Amendment 3 also requires a 6-year testing period for each engine,
although these engines are required to be tested every three years
under the approved Amendment 1. EPA believes the reduced testing
frequency for Compressor Engines E7-E9 is appropriate because these
units are of the same type as Compressor Engines E1-E6, which have a
six-year testing requirement, and the revised schedule requires
performance testing of all nine of the facility's compressor engines
within each 6-year period. For Turbine E22, the performance testing
schedule is reduced from every two years to every six years. EPA
believes this reduced testing frequency is appropriate because new
condition 7 of Amendment 3 requires the owner or operator to
continuously monitor and record appropriate parameters to demonstrate
that the unit is operating in low-NOX mode, as required
under 40 CFR 60.334(f)(2), thus minimizing NOX emissions.
Further, if any of these units, E1-E9 and E22, fails to demonstrate
compliance with standards at any time, a new provision under condition
15 of Amendment 3 requires that the unit be taken out of service until
maintenance has been performed and the unit has been re-tested and has
demonstrated compliance. In addition, the LMAPC Board notes that units
E1-E9 and E22 have shown historical emission levels are significantly
less than the regulatory limits.
EPA preliminarily agrees with the District that Amendment 3 to the
Texas Gas Board Order achieves the same level of NOX
emission reductions as the previously approved Amendment 1. Therefore,
EPA proposes to approve the October 28, 2016, revision as Amendment 3
to the Texas Gas Board Order.
(5) General Electric--Remove the Bubble Action Approved on January 12,
1982
In 1982, EPA approved a revision to the Kentucky SIP that allowed
an alternative emission reduction plan in the form of a ``bubble rule''
for the General Electric plant in Louisville, Kentucky. See 47 FR 1291
(January 12, 1982). The sources affected by that SIP revision were the
Koch Plastisol Prime System and the Koch Wire Rack Prime System. The
revision allowed the plant to achieve compliance with Kentucky and
Jefferson County VOC regulations for existing large appliance surface
coating operations. Kentucky's March 21, 2011, submittal requests
removal of this bubble rule for the General Electric plant because the
subject equipment has been disabled and the associated permits have
been voided for the facility. EPA proposes to approve the removal of
the ``Bubble action at General Electric in Louisville'' from the
Kentucky SIP.
III. Incorporation by Reference
In this rule, EPA is proposing regulatory text that includes
incorporation by reference. In accordance with requirements of 1 CFR
51.5, EPA is proposing the incorporation by reference of Jefferson
County's Regulation 6.29, Standard of Performance for Graphic Arts
Facilities Using Rotogravure or Flexographic Printing, effective August
21, 2013; ``Board Order Texas Gas Transmission'' NOX RACT
Plan, effective May 18, 2016; and ``Board Order Louisville Medical
Center Steam Plant'' NOX RACT Plan, effective January 18,
2017. EPA has made, and will continue to make, these materials
generally available through www.regulations.gov and/or 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. Proposed Actions
EPA is proposing to approve changes to the Jefferson County Air
Quality Regulations portion of the Kentucky SIP. The requested
revisions were provided by KDAQ to EPA on March 21, 2011, October 29,
2013, October 28, 2016, and March 24, 2017. The changes proposed for
approval would: (1) Modify Regulation 6.29, (2) remove Regulation 7.57,
(3) incorporate Amendment 4 to the NOX RACT Board Order for
the Louisville Medical Center Steam Plant into the Jefferson County
portion of the Kentucky SIP, (4) incorporate Amendment 3 to
NOX RACT Board Order for the Texas Gas Transmission facility
into the Kentucky SIP, and (5) remove the VOC bubble rule for the
General Electric plant in Louisville, Kentucky. EPA believes these
changes are consistent with the requirements of the CAA.
V. 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. Accordingly, this
proposed action merely proposes to approve state law as meeting federal
requirements and does not impose additional requirements beyond those
imposed by state law. For that reason, this proposed action:
[[Page 37378]]
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 (Public Law 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.
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Incorporation by
reference, Intergovernmental relations, Nitrogen dioxide, Particulate
matter, Reporting and recordkeeping requirements, Sulfur oxides,
Volatile organic compounds.
Authority: 42 U.S.C. 7401 et seq.
Dated: July 28, 2017.
V. Anne Heard,
Acting Regional Administrator, Region 4.
[FR Doc. 2017-16818 Filed 8-9-17; 8:45 am]
BILLING CODE 6560-50-P