Approval and Promulgation of Air Quality Implementation Plans; Alaska: Eagle River PM10, 900-907 [2012-31431]

Agencies

• ENVIRONMENTAL PROTECTION AGENCY

[Federal Register Volume 78, Number 4 (Monday, January 7, 2013)]
[Rules and Regulations]
[Pages 900-907]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-31431]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[Docket : EPA-R10-OAR-2010-0914; FRL--9764-7]


Approval and Promulgation of Air Quality Implementation Plans; 
Alaska: Eagle River PM10 Nonattainment Area Limited 
Maintenance Plan and Redesignation Request

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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SUMMARY: EPA is taking direct final action to approve the Limited 
Maintenance Plan (LMP) submitted by the State of Alaska on September 
29, 2010 for the Eagle River nonattainment area (Eagle River NAA) and 
the State's request to redesignate the area to attainment for the 
National Ambient Air Quality Standards (NAAQS) for particulate matter 
with an aerodynamic diameter less than or equal to a nominal 10 
micrometers (PM10).

DATES: This direct final rule will be effective March 8, 2013, without 
further notice, unless EPA receives adverse comments by February 6, 
2013. If adverse comments are received, EPA will publish a timely 
withdrawal of the direct final rule in the Federal Register informing 
the public that the rule will not take effect.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R10-
OAR-2010-0914, by any of the following methods:
     www.regulations.gov: Follow the on-line instructions for 
submitting comments.
     Email: R10-Public_Comments@epa.gov.
     Mail: Justin A. Spenillo, EPA Region 10, Office of Air, 
Waste and Toxics (AWT-107), 1200 Sixth Avenue, Suite 900, Seattle WA, 
98101.
     Hand Delivery/Courier: EPA Region 10, 1200 Sixth Avenue, 
Suite 900, Seattle WA, 98101. Attention: Justin A. Spenillo, Office of 
Air, Waste and Toxics, AWT-107. Such deliveries are only accepted 
during normal hours of operation, and special arrangements should be 
made for deliveries of boxed information.
    Instructions: Direct your comments to Docket ID No. EPA-R10-OAR-
2010-0914. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
www.regulations.gov, including any personal information provided, 
unless the comment includes information claimed to be Confidential 
Business Information (CBI) or other information the disclosure of which 
is restricted by statute. Do not submit information that you consider 
to be CBI or otherwise protected through www.regulations.gov or email. 
The www.regulations.gov Web site is an ``anonymous access'' system, 
which means EPA will not know your identity or contact information 
unless you provide it in the body of your comment. If you send an email 
comment directly to EPA without going through www.regulations.gov your 
email address will be automatically captured and included as part of 
the comment that is placed in the public docket and made available on 
the Internet. If you submit an electronic comment, EPA recommends that 
you include your name and other contact information in the body of your 
comment and with any disk or CD-ROM you submit. If EPA cannot read your 
comment due to technical difficulties and cannot contact you for 
clarification, EPA may not be able to consider your comment. Electronic 
files should avoid the use of special characters, any form of 
encryption, and be free of any defects or viruses.
    Docket: All documents in the docket are listed in the 
www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
the disclosure of which 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. Publicly available 
docket materials are available either electronically in 
www.regulations.gov or in hard copy during normal business hours at the 
Office of Air, Waste and Toxics, EPA Region 10, 1200 Sixth Avenue, 
Seattle WA, 98101.

FOR FURTHER INFORMATION CONTACT: Justin A. Spenillo at (206) 553-6125, 
spenillo.justin@epa.gov, or the above EPA, Region 10 address.

SUPPLEMENTARY INFORMATION: Throughout this document wherever ``we'', 
``us'' or ``our'' are used, it is intended to refer to EPA.

Table of Contents

I. This Action
II. Background
    A. PM10 NAAQS
    B. Eagle River NAA and Planning Background
III. Requirements for Redesignation
    A. CAA Requirements for Redesignation of Nonattainment Areas
    B. The LMP Option for PM10 Nonattainment Areas
    C. Conformity Under the LMP Option
IV. Review of the Alaska Submittal Addressing the Requirements for 
Redesignation and LMPs
    A. Has the Eagle River NAA attained the applicable NAAQS?
    B. Does the Eagle River NAA have a fully approved SIP under 
section 110(k) of the CAA?
    C. Has the State met all applicable requirements under section 
110 and part D of the CAA?
    D. Has the State demonstrated that the air quality improvement 
is due to permanent and enforceable reductions?
    E. Does the area have a fully approved maintenance plan pursuant 
to section 175A of the CAA?
    F. Has the State demonstrated that the Eagle River NAA qualifies 
for the LMP option?
    G. Does the State have an approved attainment emissions 
inventory which can be used to demonstrate attainment of the NAAQS?
    H. Does the LMP include an assurance of continued operation of 
an appropriate EPA-approved air quality monitoring network, in 
accordance with 40 CFR part 58?
    I. Does the plan meet the Clean Air Act requirements for 
contingency provisions?
    J. Has the State met conformity requirements?
V. Final Action
VI. Statutory and Executive Order Reviews

I. This Action

    EPA is taking direct final action to approve the Limited 
Maintenance Plan (LMP) submitted by the State of Alaska on September 
29, 2010, for the Eagle River nonattainment area (Eagle River NAA) and 
to concurrently redesignate the area to attainment for the 
PM10 NAAQS. EPA has reviewed air quality

[[Page 901]]

data for the area and determined that the Eagle River NAA attained the 
PM10 NAAQS by the required attainment date, and that 
monitoring data continue to show attainment. EPA also approves 
exclusion of data from a high wind exceptional event on October 30, 
2009.

II. Background

A. PM10 NAAQS

    ``Particulate matter,'' also known as particle pollution or PM, is 
a complex mixture of extremely small particles and liquid droplets. The 
size of particles is directly linked to their potential for causing 
health problems. EPA is concerned about particles that are 10 
micrometers in diameter or smaller because those are the particles that 
generally pass through the throat and nose and enter the lungs. Once 
inhaled, these particles can affect the heart and lungs and cause 
serious adverse health effects. People with heart or lung diseases, 
children and older adults are the most likely to be affected by 
particle pollution exposure. However, even healthy individuals may 
experience temporary symptoms from exposure to elevated levels of 
particle pollution.
    On July 1, 1987, EPA promulgated a NAAQS for PM10 (52 FR 
24634). EPA established a 24-hour standard of 150 [mu]g/m\3\ and an 
annual standard of 50 [mu]g/m\3\, expressed as an annual arithmetic 
mean. EPA also promulgated secondary PM10 standards that 
were identical to the primary standards. In a rulemaking action dated 
October 17, 2006, EPA retained the 24-hour PM10 standard but 
revoked the annual PM10 standard (71 FR 61144, effective 
December 18, 2006).

B. Eagle River NAA and Planning Background

    On August 7, 1987, EPA designated the ``Anchorage (Eagle River)'' 
(referred to as Eagle River henceforth) area as a PM10 
nonattainment area due to measured violations of the 24-hour 
PM10 standard (52 FR 29383). The notice announcing the 
designation upon enactment of the 1990 CAA Amendments was published on 
March 15, 1991 (56 FR 11101). On November 6, 1991, the Eagle River NAA 
was subsequently classified as moderate under sections 107(d)(4)(B) and 
188(a) of the CAA (56 FR 56694).
    After the Eagle River NAA was designated nonattainment for 
PM10, the Alaska Department of Environmental Conservation 
(ADEC) and Municipality of Anchorage (MOA) worked with the community of 
Eagle River to develop a plan to bring the area into attainment no 
later than December 31, 1994. The State submitted the plan to EPA on 
October 15, 1991, as a moderate PM10 State Implementation 
Plan (SIP) under section 189(a) of the CAA. The primary control measure 
submitted by the State was a comprehensive road paving program. EPA 
took final action to approve the State's moderate PM10 SIP 
on August 13, 1993 (58 FR 43084). On October 19, 2010, EPA made an 
attainment determination that the Eagle River nonattainment area 
attained the PM10 NAAQS (75 FR 64162).
    The State of Alaska prepared a LMP and provided notice and an 
opportunity for public comment on the proposed plan. On September 29, 
2010, the State submitted to EPA for approval the Eagle River 
PM10 LMP and requested that EPA redesignate the Eagle River 
NAA to attainment for the PM10 NAAQS.

III. Requirements for Redesignation

A. CAA Requirements for Redesignation of Nonattainment Areas

    A nonattainment area can be redesignated to attainment after the 
area has measured air quality data showing the NAAQS has been attained 
and when certain planning requirements are met. Section 107(d)(3)(E) of 
the CAA, and the General Preamble to Title I provide the criteria for 
redesignation (57 FR 13498, April 16, 1992). These criteria are further 
clarified in a policy and guidance memorandum from John Calcagni, 
Director, Air Quality Management Division, EPA Office of Air Quality 
Planning and Standards dated September 4, 1992, entitled ``Procedures 
for Processing Requests to Redesignate Areas to Attainment'' (Calcagni 
memo). The criteria for redesignation are:
    1. The Administrator has determined that the area has attained the 
applicable NAAQS;
    2. The Administrator has fully approved the applicable SIP for the 
area under section 110(k) of the CAA;
    3. The State containing the area has met all requirements 
applicable to the area under section 110 and part D of the CAA;
    4. The Administrator has determined that the improvement in air 
quality is due to permanent and enforceable reductions in emissions; 
and
    5. The Administrator has fully approved a maintenance plan for the 
area as meeting the requirements of section 175A of the CAA.

B. The LMP Option for PM10 Nonattainment Areas

    On August 9, 2001, EPA issued guidance on streamlined maintenance 
plan provisions for certain moderate PM10 nonattainment 
areas seeking redesignation to attainment (Memo from Lydia Wegman, 
Director, Air Quality Standards and Strategies Division, entitled 
``Limited Maintenance Plan Option for Moderate PM10 
Nonattainment Areas'' (LMP Option memo)). The LMP Option memo contains 
a statistical demonstration that areas meeting certain air quality 
criteria will, with a high degree of probability, maintain the standard 
10 years into the future. Thus, EPA has already provided the 
maintenance demonstration for areas meeting the criteria outlined in 
the LMP Option memo. It follows that future year emission inventories 
for these areas, and some of the standard analyses to determine 
transportation conformity with the SIP are no longer necessary.
    To qualify for the LMP Option, the area should have attained the 
PM10 NAAQS and, based upon the most recent five years of air 
quality data at all monitors in the area, the 24-hour design value 
should be at or below 98 [mu]g/m\3\. If an area cannot meet this test, 
it may still be able to qualify for the LMP Option if the average 
design value (ADV) for the site is less than the site-specific critical 
design value (CDV). In addition, the area should expect only limited 
growth in on-road motor vehicle PM10 emissions (including 
fugitive dust) and should have passed a motor vehicle regional 
emissions analysis test. The LMP Option memo also identifies core 
provisions that must be included in the LMP. These provisions include 
an attainment year emissions inventory, assurance of continued 
operation of an EPA-approved air quality monitoring network, and 
contingency provisions.

C. Conformity Under the LMP Option

    The transportation conformity rule and the general conformity rule 
(40 CFR parts 51 and 93) apply to nonattainment areas and maintenance 
areas covered by an approved maintenance plan. Under either conformity 
rule, an acceptable method of demonstrating that a Federal action 
conforms to the applicable SIP is to demonstrate that expected 
emissions from the planned action are consistent with the emissions 
budget for the area.
    While EPA's LMP Option does not exempt an area from the need to 
affirm conformity, it explains that the area may demonstrate conformity 
without submitting an emissions budget. Under the LMP Option, emissions 
budgets are treated as essentially not constraining for the length of 
the maintenance period because it is unreasonable to expect that the 
qualifying areas would experience so much growth in that period that a 
violation of the PM10 NAAQS would result. For transportation 
conformity purposes, EPA would conclude that

[[Page 902]]

emissions in these areas need not be capped for the maintenance period 
and therefore a regional emissions analysis would not be required. 
Similarly, Federal actions subject to the general conformity rule could 
be considered to satisfy the ``budget test'' specified in 40 CFR 93.158 
(a)(5)(i)(A) for the same reasons that the budgets are essentially 
considered to be unlimited.

IV. Review of the Alaska Submittal Addressing the Requirements for 
Redesignation and LMPs

A. Has the Eagle River NAA attained the applicable NAAQS?

    To demonstrate that an area has attained the PM10 NAAQS 
States must submit an analysis of ambient air quality data from an 
ambient air monitoring network representing peak PM10 
concentrations. The data should be quality-assured and stored in the 
EPA Air Quality System database. EPA has reviewed air quality data for 
the area and has determined that the Eagle River NAA attained the 
PM10 NAAQS \1\ by the applicable attainment date of December 
31, 1994, and continues to attain the PM10 NAAQS. EPA's 
analysis is described below.
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    \1\ Because the annual PM10 standard was revoked 
effective December 18, 2006, see 71 FR 61144 (October 17, 2006), 
this notice discusses only attainment of the 24-hour PM10 
standard.''
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    The 24-hour PM10 NAAQS is 150 [mu]g/m\3\. An area has 
attained this 24-hour standard when the average number of expected 
exceedances per year is less than or equal to one, when averaged over a 
three-year period (40 CFR 50.6). To make this determination, three 
consecutive years of complete ambient air quality data must be 
collected in accordance with Federal requirements (40 CFR part 58 
including appendices).
    A comprehensive air quality monitoring plan, meeting the 
requirements of 40 CFR part 58, was submitted by ADEC to EPA on January 
18, 1980 (40 CFR 52. 70), and approved by EPA on April 15, 1981 (72 FR 
21944). Updated monitoring plans have been subsequently submitted, with 
the most recent approval by EPA on October 25, 2012. The monitoring 
plan describes the Alaska monitoring network throughout the State, 
which includes site 02-020-1004 (Parkgate Site) in the Eagle 
River area. In the LMP submittal, ADEC States that the nonattainment 
designation was based on data collected at the Parkgate Site. With the 
exception of two volcanic eruptions and high wind exceptional events, a 
review of data from 1988 through the present show that PM10 
concentrations recorded at this site remain well below the 24-hour 
PM10 NAAQS. In addition, ADEC states that the Parkgate Site 
is operated in compliance with EPA monitoring guidelines set forth in 
40 CFR part 58, Ambient Air Quality Surveillance. More information on 
the monitoring plan can be found at https://dec.alaska.gov/air/am/am_airmonplan.htm.
    Data from the Parkgate Site has been quality assured by ADEC and 
submitted to EPA's Air Quality System (AQS), accessible through EPA's 
AirData Web site at https://www.epa.gov/airdata/. To show attainment for 
the 24-hour PM10 NAAQS the three most recent years of data, 
calendar years 2009-2011, must be below 1.0 Expected number of 
Exceedances (EE), as established in Appendix K to 40 CFR part 50. The 
Parkgate Site recorded one exceedance during the 2009-2011 period on 
October 30, 2009. ADEC has flagged this exceedance as being caused by a 
high wind exceptional event. Under EPA's Exceptional Events Rule, the 
Agency may exclude data from a regulatory determination related to an 
exceedance or violation of the NAAQS if the State adequately 
demonstrates that an exceptional event caused the exceedance or 
violation. 40 CFR 50.1 and 50.14. For the reasons set forth in the AK 
Eagle River PM10 October 30, 2009 Exceptional Event 
concurrence letter and analysis (November 2, 2012), EPA excluded data 
showing an exceedance on October 30, 2009 in determining whether the 
Eagle River NAA has attained the PM10 NAAQS. ADEC also 
submitted an exceedance on October 31, 2009 for consideration as an 
exceptional event however this request was not approved as described in 
the concurrence letter. The concurrence letter explains how ADEC met 
its burden to demonstrate that the October 30, 2009 exceedance 
qualifies as an exceptional event. Based on this demonstration, the 
area's EE was 0.4, which is well below the 1.0 upper limit. EPA 
therefore concludes that the area was not violating the PM10 
NAAQS during the three-year period 2009 to 2011 (Eagle River 
PM10 NAAQS and LMP Determination, November 8, 2012).

B. Does the Eagle River NAA have a fully approved SIP under section 
110(k) of the CAA?

    To qualify for redesignation, the SIP for an area must be fully 
approved under section 110(k) of the CAA, and must satisfy all 
requirements that apply to the area. As discussed in Section II.B. 
above, Alaska submitted a moderate PM10 SIP for the Eagle 
River NAA on October 15, 1991. EPA took final action to fully approve 
the State's moderate PM10 SIP on August 13, 1993 (58 FR 
43084), as satisfying all requirements that apply to the area. Thus the 
area has a fully approved nonattainment area SIP under section 110(k) 
of CAA.

C. Has the State met all applicable requirements under section 110 and 
Part D of the CAA?

    Section 107(d)(3)(E) of the CAA requires that a state containing a 
nonattainment area meet all applicable requirements under section 110 
and Part D of the CAA for the area to be redesignated to attainment. 
EPA interprets this to mean that the state must meet all requirements 
that applied to the area prior to, and at the time of, the submission 
of a complete redesignation request. The following is a summary of how 
Alaska meets these requirements.
(1) Clean Air Act Section 110 Requirements
    Section 110(a)(2) of the CAA contains general requirements for 
nonattainment plans. These requirements include, but are not limited 
to: Submittal of a SIP that has been adopted by the state after 
reasonable notice and public hearing; provisions for establishment and 
operation of appropriate apparatus, methods, systems and procedures 
necessary to monitor ambient air quality; implementation of a permit 
program; provisions for Part C--Prevention of Significant Deterioration 
(PSD) and Part D--New Source Review (NSR) permit programs; criteria for 
stationary source emission control measures, monitoring and reporting; 
provisions for modeling; and provisions for public and local agency 
participation. See the General Preamble for further explanation of 
these requirements (57 FR 13498, April 16, 1992). EPA's approval of 
Alaska's SIP for attainment and maintenance of national standards can 
be found at 40 CFR 52.72. For purposes of redesignation of the Eagle 
River PM10 NAA, EPA has reviewed the Alaska SIP and finds 
that the State has satisfied all applicable requirements under CAA 
section 110(a)(2) for the PM10 NAAQS.
(2) Part D Requirements
    Part D of the CAA contains general requirements applicable to all 
areas designated nonattainment. The general requirements are followed 
by a series of subparts specific to each pollutant. All PM10 
nonattainment areas must meet the general provisions of Subpart 1 and 
the specific PM10 provisions in Subpart 4, ``Additional 
Provisions for Particulate Matter Nonattainment Areas.'' The following 
paragraphs discuss these

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requirements as they apply to the Eagle River PM10 NAA.
(2)(a) Part D, Section 172(c)(2)--Reasonable Further Progress
    Section 172(c) contains general requirements for nonattainment area 
plans. A thorough discussion of these requirements may be found in the 
General Preamble (57 FR 13538, April 16, 1992). CAA section 172(c)(2) 
requires nonattainment plans to provide for reasonable further progress 
(RFP). Section 171(1) of the CAA defines RFP as ``such annual 
incremental reductions in emissions of the relevant air pollutant as 
are required by this part (part D of title I) or may reasonably be 
required by the Administrator for the purpose of ensuring attainment of 
the applicable national ambient air quality standard by the applicable 
date.'' The requirements for reasonable further progress, 
identification of certain emissions increases and other measures needed 
for attainment were satisfied with the approved Eagle River 
PM10 SIP (58 FR 43084). In the October 19, 2010 action (75 
FR 64162), EPA determined that the Eagle River NAA attained the 24-hour 
PM10 NAAQS by the December 31, 1994, attainment date. 
Therefore, EPA believes no further showing of RFP or quantitative 
milestones is necessary.
(2)(b) Part D, Section 172(c)(3)--Emissions Inventory
    For redesignation, Section 172(c)(3) of CAA requires a 
comprehensive, accurate, current inventory of actual emissions from all 
sources in the Eagle River PM10 NAA. Alaska included an 
emissions inventory for the Eagle River area for the year 2007 in the 
September 29, 2010 submittal. The inventory estimated emissions during 
spring break-up and fall freeze-up include: Dust from paved roads; 
wind-generated dust from roads, parking lots and un-vegetated areas; 
fireplaces and woodstoves; natural gas combustion; and motor vehicles 
exhaust, tire and brake wear. The emissions inventory included 
emissions estimates for unpaved roads for the initial SIP attainment 
plan (Eagle River PM10 Control Plan), but all roads have been paved and 
so those emissions have not been included in the 2007 nor 2020 
inventories. Emissions estimates for road dust and motor vehicle 
exhaust, brake wear, and tire wear were developed using the EPA-
approved MOBILE6.2 model, and vehicle miles traveled estimates were 
obtained from the 2007 Chugiak-Eagle River Long Range Transportation 
Plan. The remaining emissions estimates were calculated using EPA 
approved AP-42 emission factors. EPA reviewed the inventory and 
associated calculations submitted by Alaska and believes that the 2007 
Eagle River emissions inventory is current, accurate and comprehensive 
and therefore meets the requirements of section 172(c)(3) of the CAA.
(2)(c) Part D, Section 172(c)(5)--New Source Review (NSR)
    The CAA requires all nonattainment areas to meet several 
requirements regarding NSR. The state must have an approved major NSR 
program that meets the requirements of CAA section 172(c)(5). EPA 
evaluated and initially approved the Alaska major NSR program on July 
5, 1983 (48 FR 30623) and most recently approved revisions to Alaska's 
NSR program on February 11, 2011 (76 FR 7116). In the Eagle River 
PM10 NAA, the requirements of the Part D NSR program will be 
replaced by the State's PSD program requirements upon the effective 
date of redesignation.
(2)(d) Part D, Section 172(c)(7)--Compliance With CAA Section 
110(a)(2): Air Quality Monitoring Requirements
    Once an area is redesignated, the state must continue to operate an 
appropriate air monitoring network in accordance with 40 CFR part 58 to 
verify the attainment status of the area. On July 18, 1980 Alaska 
submitted a comprehensive air quality monitoring plan (40 CFR 52.70), 
meeting the requirements of 40 CFR part 58, to EPA. EPA approved the 
plan on April 15, 1981 (72 FR 21944). This monitoring plan has been 
updated, with the most recent approval by EPA on October 25, 2012 
(Alaska Air Monitoring Plan Approval Letter, dated October 25, 2012). 
As described in section IV. A., ADEC operate a comprehensive monitoring 
network.
(2)(e) Part D, Section 172(c)(9)--Contingency Measures
    The CAA requires that contingency measures take effect if an area 
fails to meet RFP requirements or fails to attain the NAAQS by the 
applicable attainment date. Because, as part of this action, EPA has 
determined the Eagle River NAA attained the PM10 NAAQS by 
the applicable attainment date of December 31, 1994, contingency 
measures are no longer required under section 172(c)(9) of the CAA. 
However, contingency provisions are required for maintenance plans 
under Section 175A. See section VI. F. for a description of Alaska's 
maintenance plan contingency provisions.
(2)(f) Part D, Section 189(a), (c), and (e)--Additional Provisions for 
Particulate Matter Nonattainment Areas
    Section 189(a), (c), and (e) apply to moderate PM10 
nonattainment areas. Any of these requirements which were applicable 
and due prior to the submission of the redesignation request must be 
fully approved into the SIP before redesignating the area to 
attainment. With respect to the Eagle River PM10 NAA, these 
requirements include:
    (a) Provisions to assure that reasonably available control measures 
were implemented by December 10, 1993 (section 189(a)(1)(C));
    (b) Either a demonstration that the plan provided for attainment as 
expeditiously as practicable, but not later than December 31, 1994, or 
a demonstration that attainment by that date was impracticable (section 
189(a)(1)(B));
    (c) Quantitative milestones which were achieved every three years 
and which demonstrate RFP toward attainment by December 31, 1994 
(section 189(c)(1)); and
    (d) Provisions to assure that the control requirements applicable 
to major stationary sources of PM10 also apply to major 
stationary sources of PM10 precursors except where the 
Administrator determined that such sources do not contribute 
significantly to PM10 levels which exceed the NAAQS in the 
area (section 189(e)).
    Provisions for reasonably available control measures, attainment 
demonstration, and RFP milestones were fully approved into the SIP upon 
EPA approval of the moderate PM10 SIP for the Eagle River 
NAA on August 13, 1993 (58 FR 43084). EPA most recently approved 
revisions to Alaska's NSR program on February 9, 2011 (76 FR 7116). 
Alaska's major NSR rules include control requirements that apply to 
major stationary sources of PM10 in nonattainment areas and 
attainment/unclassifiable areas. For the Eagle River area, EPA 
determined that major stationary sources do not contribute 
significantly to PM10 levels in excess of the NAAQS. 
Therefore, in EPA's action to approve the moderate PM10 SIP 
for Eagle River, EPA granted the exclusion from control requirements 
authorized under section 189(e) for major stationary sources of 
PM10 precursors (58 FR 43084).

D. Has the State demonstrated that the air quality improvement is due 
to permanent and enforceable reductions?

    Section 107(d)(3)(E)(iii) of the CAA provides that a nonattainment 
area may

[[Page 904]]

not be redesignated unless EPA determines that the improvement in air 
quality is due to permanent and enforceable reductions in emissions 
resulting from implementation of the SIP. Therefore, a State must be 
able to reasonably attribute the improvement in air quality to 
permanent and enforceable emission reductions by demonstrating that air 
quality improvements are the result of actual enforceable emission 
reductions. This showing should consider emission rates, production 
capacities, and other related information. The analysis should assume 
that sources are operating at permitted levels (or historic peak 
levels) unless evidence is presented that such an assumption is 
unrealistic.
    Permanent and enforceable control measures in the Eagle River 
moderate PM10 SIP include road paving and surfacing projects 
to address fugitive dust. These controls were approved by EPA into the 
Eagle River PM10 SIP, and they are both permanent and 
federally enforceable (58 FR 43084). As described in the submittal, the 
primary control measure relied on is the road paving program which 
either paved or surfaced all of the roads in the area by 2007. The 
program paved 22 miles of road which equals almost half of the roads in 
the area. The Municipality of Anchorage (MOA) commits itself to 
maintenance of the roads during their 10-15-year lifetime and 
resurfacing thereafter. The MOA also will work with the Alaska 
Department of Transportation and Public Facilities to limit the amount 
of silt allowed in winter traction sand as well as explore other road 
maintenance techniques that minimize road dust while still cleaning and 
maintaining safe roads.
    EPA believes that areas that qualify for the LMP Option will meet 
the NAAQS, even under worst case meteorological conditions. Therefore, 
under the LMP Option, the maintenance demonstration is presumed to be 
satisfied if an area meets the qualifying criteria. A description of 
the LMP qualifying criteria and how the Eagle River area meets these 
criteria is provided below. By qualifying for the LMP Option, Alaska 
presumptively demonstrates that the air quality improvements in the 
Eagle River area are the result of permanent emission reductions and 
not a result of either economic trends or meteorology.

E. Does the area have a fully approved maintenance plan pursuant to 
section 175A of the CAA?

    In this action, we are approving the LMP in accordance with the 
principles outlined in the LMP Option memo. Upon the effective date of 
this action, the area will have a fully approved maintenance plan.

F. Has the State demonstrated that the Eagle River NAA qualifies for 
the LMP option?

    The LMP Option memo outlines the requirements for an area to 
qualify for the LMP Option. First, the area should be attaining the 
NAAQS. In this action, EPA has determined that the Eagle River NAA 
attained the PM10 NAAQS by the required attainment date, and 
continues to be in attainment with the PM10 NAAQS. Please 
see section V. A. for a detailed discussion.
    Second, the average design value (ADV) for the past five years of 
monitoring data must be at or below the critical design value (CDV). 
The CDV is a margin of safety value at which an area has been 
determined to have a one in ten probability of exceeding the NAAQS. The 
LMP Option memo provides two methods to review monitoring data for the 
purpose of determining qualification for the LMP Option. The first 
method is a comparison of a site's ADV with the CDV of 98 [micro]g/m\3\ 
for the 24 hour PM10 NAAQS and 40 [micro]g/m\3\ for the 
annual PM10 NAAQS. A second method that applies to the 24-
hour PM10 NAAQS is the calculation of a site-specific CDV 
and a comparison of the site-specific CDV with the ADV for the past 
five years of monitoring data. The State's submittal provides a 
comparison of five-year ADVs compared to the 24-hour CDV, as described 
in the first method for review of monitoring data to determine 
qualification for the LMP Option. Alaska's analysis demonstrates that 
the Eagle River NAA meets the LMP design value criteria for the period 
2003-2007. Using EPA-recommended methodology, Alaska calculated the 
average 24-hour design value for the area to be 92.3 [micro]g/m\3\, 
which is below the CDV of 98 [micro]g/m\3\. Alaska did not include two 
events that they considered to be exceptional events on March 12, 2003 
and December 2, 2007.
    Given that the LMP memo requires that the most recent five years of 
data be used to determine LMP eligibility, EPA calculated average 
design values using more recent data from 2007-2011. EPA found that the 
Eagle River area meets the LMP design value criteria for both the 24-
hour ADV (95 [micro]g/m\3\ compared to the 98 [micro]g/m\3\ 24 hr ADV) 
and the annual ADV (17 [micro]g/m\3\ compared to the 40 [micro]g/m\3\ 
annual ADV) (Eagle River PM10 NAAQS and LMP Determination 
Memo, November 8, 2012). EPA's calculations did not include data from 
October 30, 2009, which EPA agreed was an exceedance caused by an 
exceptional event. EPA finds that Eagle River meets the design value 
criteria outlined in the LMP Option memo.
    Third, the area must meet the motor vehicle regional emissions 
analysis test in attachment B of the LMP Option memo. Using the 
methodology outlined in attachment B, Alaska submitted an analysis of 
whether increased emissions from on-road mobile sources would increase 
PM10 concentrations in the Eagle River NAA to levels that 
would threaten the assumption of maintenance that underlies the LMP 
policy. Based on monitoring data for the period 2003-2007, Alaska has 
determined that the Eagle River NAA passes the motor vehicle regional 
emissions analysis test. EPA has reviewed the calculations in Appendix 
A of the State's submittal and concurs with this conclusion.
    As described above, the Eagle River NAA meets the qualification 
criteria set forth in the LMP Option memo and therefore qualifies for 
the LMP Option. The LMP Option memo also indicates that once a state 
selects the LMP Option and it is in effect, the state will be expected 
to determine, on an annual basis, that the LMP criteria are still being 
met. If the state determines that the LMP criteria are not being met, 
it should take action to reduce PM10 concentrations enough 
to requalify for the LMP Option. One possible approach the state could 
take is to implement contingency provisions. The State's submittal 
included a description of contingency provisions which are discussed in 
Section V. I. EPA believes the contingency provisions submitted by 
Alaska meet the requirements of CAA section 175A as outlined in the LMP 
Option memo.
    As a result of the above analysis, EPA is approving the LMP for the 
Eagle River area and the State's request to redesignate the Eagle River 
NAA to attainment for PM10.

G. Does the State have an approved attainment emissions inventory which 
can be used to demonstrate attainment of the NAAQS?

    Pursuant to the LMP Option memo, the state's approved attainment 
plan should include an emissions inventory which can be used to 
demonstrate attainment of the NAAQS. The inventory should represent 
emissions during the same five-year period associated with air quality 
data used to determine whether the area meets the applicability 
requirements of the LMP Option. The state should review its inventory 
every three years to ensure emissions growth is incorporated in the 
inventory if necessary.

[[Page 905]]

    Alaska's submittal includes an emissions inventory for the year 
2007. After reviewing the 2007 emissions inventory and determining that 
it is current, accurate and complete, as well as reviewing monitoring 
data for the years 2003-2007, EPA has determined that the 2007 
emissions inventory is representative of the attainment year inventory 
because the NAAQS was not violated during 2007. In addition, the year 
2007 is representative of the level of emissions during the time period 
used to calculate the average design value because 2007 is one of the 
years during the five-year period used to calculate the design value 
(2003-2007). The submittal meets EPA guidance, as described above, for 
purposes of an attainment emissions inventory.

H. Does the LMP include an assurance of continued operation of an 
appropriate EPA-approved air quality monitoring network, in accordance 
with 40 CFR part 58?

    PM10 monitoring was established in the Eagle River area 
in 1985. ADEC currently maintains a PM10 monitoring network 
which includes the Parkgate Site within the Eagle River area. This 
monitoring network was developed and has been maintained in accordance 
with Federal siting and design criteria in 40 CFR part 58 and in 
consultation with Region 10. EPA most recently approved Alaska's air 
monitoring plan on October 25, 2012 (Alaska Air Monitoring Plan 
Approval Letter, dated October 25, 2012). In the September 29, 2010 
submittal, Alaska states that it will continue to monitor for 
PM10 in the Eagle River NAA through the end of the 
maintenance planning period (2020).

I. Does the plan meet the Clean Air Act requirements for contingency 
provisions?

    CAA Section 175A states that a maintenance plan must include 
contingency provisions, as necessary, to ensure prompt correction of 
any violation of the NAAQS which may occur after redesignation of the 
area to attainment. As explained in the LMP Option memo and Calcagni 
memo, these contingency provisions are considered to be an enforceable 
part of the SIP. The plan should clearly identify the provisions to be 
adopted, a schedule and procedures for adoption and implementation, and 
a specific time limit for action by the state. The maintenance plan 
should identify the events that would ``trigger'' the adoption and 
implementation of a contingency provision, the contingency provision 
that would be adopted and implemented, and the schedule indicating the 
time frame by which the state would adopt and implement the provision. 
The LMP Option memo and Calcagni memo state that EPA will review what 
constitutes a contingency plan on a case-by-case basis. At a minimum, 
it must require that the State will implement all measures contained in 
the Part D nonattainment plan for the area prior to redesignation.
    ADEC has included maintenance plan contingency provisions to ensure 
the area continues to meet the PM10 NAAQS. Specifically, the 
submittal includes a list of potential contingency measures based on 
the primary sources of PM10 identified in the emission 
inventory. These include traffic-related paved road dust, wind-blown 
dust from roadways, parking lots and cleared areas, and fireplaces and 
woodstoves. Traffic-related road dust and wind-blown dust contingency 
provisions include application of chemical dust palliatives based on a 
successful field study in 2008 during their spring break-up period, and 
the potential use of road sweeping. Another provision primarily 
directed at wind-blown dust would require that traction sand materials 
meet specifications which would reduce the amount of re-entrained dust. 
Fireplace and woodstove provisions would include curtailment scenarios 
if economics or meteorology increased the amount of PM10 
emissions generated by residential wood combustion.
    The contingency provisions submitted by ADEC will be formally 
assessed by MOA within 30 days following the violation of the 
PM10 NAAQS. Within 120 days a report, will be prepared and 
ultimately approved by ADEC. The report will assess existing controls 
and provide a recommendation with respect to the contingency provisions 
or alternatives. Actions will occur at the discretion of the Municipal 
Mayor and Assembly. Some measures may require changes to the local 
ordinances. The contingency provisions identify potential control 
measures and provide a specific schedule for review, recommendation, 
adoption and implementation. EPA believes the contingency provisions 
are adequate to meet CAA Section 175A requirements and the LMP Option 
memo.

J. Has the State met conformity requirements?

(1) Transportation Conformity
    Under the LMP Option, emissions budgets are treated as essentially 
not constraining for the maintenance period because it is unreasonable 
to expect that qualifying areas would experience so much growth in that 
period that a NAAQS violation would result. While areas with 
maintenance plans approved under the LMP Option are not subject to the 
budget test, the areas remain subject to the other transportation 
conformity requirements of 40 CFR part 93, subpart A. Thus, the 
metropolitan planning organization (MPO) in the area or the state must 
document and ensure that:
    (a) Transportation plans and projects provide for timely 
implementation of SIP transportation control measures (TCMs) in 
accordance with 40 CFR 93.113;
    (b) Transportation plans and projects comply with the fiscal 
constraint element as set forth in 40 CFR 93.108;
    (c) The MPO's interagency consultation procedures meet the 
applicable requirements of 40 CFR 93.105;
    (d) Conformity of transportation plans is determined no less 
frequently than every three years, and conformity of plan amendments 
and transportation projects is demonstrated in accordance with the 
timing requirements specified in 40 CFR 93.104;
    (e) The latest planning assumptions and emissions model are used as 
set forth in 40 CFR 93.110 and 40 CFR 93.111;
    (f) Projects do not cause or contribute to any new localized carbon 
monoxide or particulate matter violations, in accordance with 
procedures specified in 40 CFR 93.123; and
    (g) Project sponsors and/or operators provide written commitments 
as specified in 40 CFR 93.125.
    In the 2012 adequacy finding for the Eagle River, Alaska 
Particulate Matter (PM10) Limited Maintenance Plan, EPA 
determined that the Eagle River area met the criteria to be exempted 
from regional emissions analysis for PM10 (77 FR 25164,\2\ 
April 27, 2012). However, project level conformity requirements would 
continue to apply to the area. With EPA's approval of the LMP, the area 
continues to be exempt from performing a regional emissions analysis, 
but must meet project-level conformity analyses as well as the 
transportation conformity criteria mentioned above.
---------------------------------------------------------------------------

    \2\ This adequacy finding for Eagle River AK incorrectly 
references a submission of date of September 20, 2011. The correct 
submission date was September 29, 2010.
---------------------------------------------------------------------------

(2) General Conformity
    For Federal actions required to address the specific requirements 
of the general conformity rule, one set of requirements applies 
particularly to ensuring that emissions from the action will not cause 
or contribute to new

[[Page 906]]

violations of the NAAQS, exacerbate current violations, or delay timely 
attainment. One way that this requirement can be met is to demonstrate 
that ``the total of direct and indirect emissions from the action (or 
portion thereof) is determined and documented by the State agency 
primarily responsible for the applicable SIP to result in a level of 
emissions which, together with all other emissions in the nonattainment 
area, would not exceed the emissions budgets specified in the 
applicable SIP'' (40 CFR 93.158(a)(5)(i)(A)).
    The decision about whether to include specific allocations of 
allowable emissions increases to sources is one made by the state and 
local air quality agencies. These emissions budgets are different than 
those used in transportation conformity. Emissions budgets in 
transportation conformity are required to limit and restrain emissions. 
Emissions budgets in general conformity allow increases in emissions up 
to specified levels. Alaska has not chosen to include specific 
emissions allocations for Federal projects that would be subject to the 
provisions of general conformity.

V. Final Action

    EPA is taking direct final action to approve the LMP submitted by 
the State of Alaska for the Eagle River NAA and concurrently 
redesignate the area to attainment for the PM10 NAAQS. EPA 
has reviewed air quality data for the area and determined that the 
Eagle River NAA attained the PM10 NAAQS by the required 
attainment date, and that air monitoring data continue to show 
attainment.
    EPA is publishing this action without prior proposal because the 
Agency views this as a noncontroversial amendment and anticipates no 
adverse comments. However, in the proposed rules section of this 
Federal Register publication, EPA is publishing a separate document 
that will serve as the proposal to approve the SIP revision should 
adverse comments be filed. This rule will be effective March 8, 2013 
without further notice unless the Agency receives adverse comments by 
February 6, 2013.
    If EPA receives such comments, then EPA will publish a timely 
withdrawal of the direct final rule informing the public that the rule 
will not take effect. All public comments received will then be 
addressed in a subsequent final rule based on the proposed rule. The 
EPA will not institute a second comment period on this rule. Any 
parties interested in commenting on this rule should do so at this 
time. If no such comments are received, the public is advised that this 
rule will be effective on March 8, 2013 and no further action will be 
taken on the proposed rule.

VI. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a 
SIP submission that complies with the provisions of the Act and 
applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). 
Thus, in reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. 
Accordingly, this action merely approves state law as meeting Federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Order 
12866 (58 FR 51735, October 4, 1993);
     Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Is not subject to the 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 Clean Air Act; and
     Does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, this rule does not have tribal implications as 
specified by Executive Order 13175 (65 FR 67249, November 9, 2000), 
because the SIP is not approved to apply in Indian country located in 
the state, and EPA notes that it will not impose substantial direct 
costs on tribal governments or preempt tribal law.
    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 Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by March 8, 2013. 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, Particulate matter, Reporting 
and recordkeeping requirements.

40 CFR Part 81

    Environmental protection, Air pollution control, National parks, 
Wilderness areas.

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

    Dated: December 17, 2012.
Dennis J. McLerran,

Regional Administrator, Region 10.

    40 CFR parts 52 and 81 are amended as follows:

PART 52--[AMENDED]

0
1. The authority citation for part 52 continues to read as follows:

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

[[Page 907]]

Subpart C--Alaska

0
2. Section 52.73 is amended by adding paragraph (e)(1) to read as 
follows:


Sec.  52.73  Approval of plans.

* * * * *
    (e) * * *
    (1) Eagle River. (i) EPA approves as a revision to the Alaska State 
Implementation Plan, the Eagle River PM-10 Limited Maintenance Plan 
(Volume II Sections III.D.2 of the State Air Quality Control Plan 
adopted August 20, 2010, effective October 29, 2010, and Volume III 
Sections III.D.2.2 of the Appendices adopted August 20, 2010, effective 
October 29, 2010) submitted by the Alaska Department of Environmental 
Conservation on September 29, 2010.
    (ii) [Reserved]
* * * * *

PART 81--[AMENDED]

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.  81.302, the table entitled ``Alaska--PM-10'' is amended by 
revising the entry for ``Anchorage, Community of Eagle River'' to read 
as follows:


Sec.  81.302  Alaska.

* * * * *

                                                  Alaska--PM-10
----------------------------------------------------------------------------------------------------------------
                                                Designation                           Classification
         Designated area         -------------------------------------------------------------------------------
                                         Date                Type                Date                Type
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
Anchorage
    Community of Eagle River....  March 8, 2013.....  Attainment........
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *
[FR Doc. 2012-31431 Filed 1-4-13; 8:45 am]
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