Approval and Promulgation of Air Quality Implementation Plans; Spokane PM10 Nonattainment Area Limited Maintenance Plan and Redesignation Request

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

[Federal Register: July 1, 2005 (Volume 70, Number 126)]
[Rules and Regulations]
[Page 38029-38038]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr01jy05-18]

-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY
40 CFR Parts 52 and 81
[Docket #: R10-OAR-2004-WA-0003; FRL-7927-2]

Approval and Promulgation of Air Quality Implementation Plans;
Spokane PM10 Nonattainment Area Limited Maintenance Plan and
Redesignation Request

AGENCY: Environmental Protection Agency (EPA).
ACTION: Direct final rule.

-----------------------------------------------------------------------

SUMMARY: EPA is taking direct final action to approve the Limited
Maintenance Plan for the Spokane nonattainment area (NAA) in Washington
and grant the request by the State to redesignate the area from
nonattainment to attainment for PM10. On November 30, 2004, the State
of Washington submitted a Limited Maintenance Plan (LMP) for the
Spokane nonattainment area (NAA) for approval and concurrently
requested that EPA redesignate the Spokane NAA 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). In 1997, EPA approved Washington's moderate area
plan for the Spokane NAA for all PM10 sources except windblown dust. In
this direct final action, EPA is also approving the remaining elements
of the Spokane NAA moderate area plan for windblown dust sources.

DATES: This direct final rule will be effective August 30, 2005,
without further notice, unless EPA receives adverse comments by August
1, 2005. 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. R10-OAR-
2004-WA-0003, by one of the following methods:

[[Page 38030]]

? Federal eRulemaking Portal: http://www.regulations.gov.
Follow the on-line instructions for submitting comments.
? Agency Web site: http://www.epa.gov/edocket. EDOCKET,
EPA's electronic public docket and comment system, is EPA's preferred
method for receiving comments. Follow the on-line instructions for
submitting comments.
? Mail: Gina Bonifacino, Office of Air, Waste and Toxics,
OAWT-107 EPA, Region 10, 1200 Sixth Ave., Seattle, Washington 98101.
? Hand Delivery: EPA, Region 10 Mail Room, 9th Floor, 1200
Sixth Ave., Seattle, Washington 98101. Attention: Gina Bonifacino,
Office of Air, Waste and Toxics, OAWT-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. R10-OAR-2004-
WA-0003. EPA's policy is that all comments received will be included in
the public docket without change and may be made available online at
http://www.epa.gov/edocket, including any personal information
provided, unless the comment includes information claimed to be
Confidential Business Information (CBI) or other information whose
disclosure is restricted by statute. Do not submit information that you
consider to be CBI or otherwise protected through EDOCKET,
regulations.gov or e-mail. The EPA EDOCKET and the Federal
regulations.gov Web site are ``anonymous access'' systems, 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 e-mail comment
directly to EPA without going through EDOCKET or regulations.gov, your
e-mail 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 EDOCKET index
at http://www.epa.gov/edocket. Although listed in the index, some
information is not publicly available, such as CBI or other information
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, is not placed on the Internet and will be
publicly available only in hard copy form. Publicly available docket
materials are available electronically in EDOCKET, in hard copy at EPA,
Region 10, Office of Air, Waste and Toxics, 1200 Sixth Avenue, Seattle,
Washington, or in hard copy at the EPA Washington Operations Office,
300 Desmond Dr. SE., Suite 102, Lacey, WA 98503 from 8 a.m. to 4:30
p.m. Monday through Friday, excluding legal holidays.

FOR FURTHER INFORMATION CONTACT: Gina Bonifacino at telephone number:
(206) 553-2970, e-mail address: bonifacino.gina@epa.gov, fax number:
(206) 553-0110, or the above EPA, Region 10 address.

SUPPLEMENTARY INFORMATION: Throughout this document wherever ``we,''
``us'' or ``our'' are used, we mean EPA.

Table of Contents

I. This Action
II. Background of the Spokane Nonattainment Area (Spokane NAA)
A. Description of the Spokane Nonattainment Area
B. PM10 Emissions in the Spokane Nonattainment Area
C. Planning Background
III. Requirements for Redesignation
A. Clean Air Act Requirements for Redesignation of Nonattainment Areas
B. The Limited Maintenance Plan (LMP) Option for PM10
Nonattainment Areas
C. Conformity Under the Limited Maintenance Plan Option
IV. Review of the Washington State Submittal Addressing the
Requirements for Redesignation and Limited Maintenance Plans
A. Has the Spokane NAA Attained the Applicable NAAQS?
B. Does the Spokane NAA Have a Fully Approved SIP Under Section
110(k) of the Clean Air Act (the Act)?
C. Has the State Met all Applicable Requirements Under Section
110 and Part D of the Act?
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 Act?
F. Has the State Demonstrated that the Spokane 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?
J. Does the Plan Meet the Clean Air Act Requirements for
Contingency Provisions?
K. Has the State Met Conformity Requirements?
V. Incorporation by Reference (IBR) Material
VI. Direct Final Action
VII. Statutory and Executive Order Reviews

I. This Action

EPA is taking direct final action to approve the Limited
Maintenance Plan (LMP) for the Spokane nonattainment area (Spokane NAA)
and concurrently redesignate the Spokane NAA 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). Also in this action, EPA is approving the remaining
portions of the moderate area State Implementation Plan (SIP) for
windblown dust sources that were deferred in EPA's approval of the
Spokane PM10 NAA moderate area plan in 1997. See 62 FR 3800. (January
27, 1997). See also 66 FR 27055. (May 16, 2001). Spokane attained the
PM10 NAAQS in 1994 and there have been no violations of the PM10 NAAQS
in Spokane since 1993. Also in this action, EPA is approving revisions
to the Spokane County Air Pollution Control Authority (SCAPCA) Regulatory
Orders #96-03, #96-05, and #96-06 for PM10 at the Kaiser-Trentwood
facility.

II. Background of the Spokane Nonattainment Area (Spokane NAA)

A. Description of the Spokane Nonattainment Area

The Spokane PM10 nonattainment area (Spokane NAA) is a roughly
rectangular area covering approximately 599 square kilometers in
eastern Washington. The Spokane NAA encompasses the metropolitan area
of Spokane and some surrounding sections of Spokane County. For a legal
description of the boundaries see 40 CFR 81.348. The Spokane NAA lies
in a broad, flat valley transversed by the Spokane and Little Spokane
rivers. All major point sources (i.e. industrial sources) of PM10 in
Spokane County as well as 81 percent of the county's residences lie
within the NAA. In general, Spokane has a mild, arid climate in summer
and a cold, moist climate in winter. The nonattainment area is
characterized by significant terrain elevation changes which may affect
dispersion.

B. PM10 Emissions in the Spokane Nonattainment Area

Dust storms originating in the Columbia Plateau have contributed to

[[Page 38031]]

exceedences of the PM10 NAAQS and elevated PM10 levels in the Spokane
NAA. The Spokane NAA lies at the northeastern edge of the Columbia
Plateau and is impacted by seasonal high winds from the south and
southwest, which move dust from the approximate 12.1 million acres of
agricultural lands and grasslands on the semi-arid plateau to downwind
areas. A 1992 report entitled ``An Analysis of the Impact of Biogenic
PM10 Sources on the Spokane PM10 Nonattainment Area, February 1992'',
estimated gross annual emissions from anthropogenic and
nonanthropogenic sources of PM10 in eastern Washington as 40% and 60%
respectively.
Washington submitted a complete emissions inventory for the
calendar year 2002 with the Limited Maintenance Plan, and summarized
current significant contributors to daily emissions as fugitive dust
from unpaved roads (49%), residential wood combustion (24%), fugitive
dust from construction (6%), paved roads (3%) and emissions from land
clearing debris burning (3%). In 2002, all other source categories
contributed 2% or less to daily emissions of PM10.

C. Planning Background

The Spokane, Washington area was designated nonattainment for PM10
and classified as moderate under sections 107(d)(4)(B) and 188(a) of
the Clean Air Act upon enactment of the Clean Air Act Amendments of
1990. See 56 FR 56694 (November 6, 1991). States containing initial
moderate PM10 nonattainment areas were required to submit, by November
15, 1991, a moderate nonattainment area SIP that, among other
requirements, implemented reasonably available control measures (RACM)
by December 10, 1993, and demonstrated whether it was practicable to
attain the PM10 NAAQS by December 31, 1994. See generally 57 FR 13498
(April 16, 1992); see also 57 FR 18070 (April 28, 1992).
Washington submitted a SIP for the Spokane area on November 15,
1991, followed by addendums on January 31, 1992, December 9, 1994, and
May 18, 1995. The December 1994 addendum included a detailed technical
analysis indicating that nonanthropogenic sources may be significant in
the Spokane PM10 nonattainment area during windblown dust events. In
1997, based on our review of the State's submissions, we approved the
PM10 emissions inventory, control measures in the SIP as meeting RACM/
RACT, quantitative milestone and reasonable further progress
requirements, and contingency measures for all sources of PM10 other
than windblown dust. See 62 FR 3800 (January 27, 1997). Under section
188(f) of the Act, EPA deferred action on the attainment demonstration,
emissions inventory, control measures and contingency measures for
windblown dust sources in the Spokane NAA to provide the State with
more time to further evaluate windblown dust events in the Spokane NAA.
In this action, we are approving these remaining requirements for
windblown dust.
In the same action, EPA approved regulatory orders for the Kaiser-
Trentwood aluminum facility to provide consistency between the 1994
emissions inventory and allowable emissions for the facility. See 62 FR
3800 (January 27, 1997). SCAPCA Order #91-01 provided for the
use of an alternate opacity limit for the Kaiser-Trentwood aluminum
facility. SCAPCA Order #96-03, Order #96-04, Order
#96-05 and Order #96-06 significantly lowered the
allowable emissions from the facility. These new allowable emissions
limits are equivalent to Kaiser facility emissions in the 1994
emissions inventory used in the attainment demonstration.
On September 24, 2001, EPA published a Federal Register notice with
its determination, based on air quality data for the years 1995-1997,
that the Spokane NAA had attained the NAAQS for PM10 by the extended
attainment date of December 31, 1997. See 66 FR 48808.
On November 30, 2004, Washington submitted a Limited Maintenance
Plan for the Spokane NAA for approval and requested that EPA
redesignate the Spokane NAA to attainment for the National Ambient Air
Quality Standards (NAAQS) for PM10. In this action, EPA is approving
the Limited Maintenance Plan (LMP) for the Spokane NAA in Washington
and granting the request by the State to redesignate the area from
nonattainment to attainment for PM10. As stated above, we are also
approving the remaining moderate area plan requirements for windblown dust.

III. Requirements for Redesignation

A. Clean Air Act Requirements for Redesignation of Nonattainment Areas

Nonattainment areas can be redesignated to attainment after the
area has measured air quality data showing it has attained the NAAQS
and when certain planning requirements are met. Section 107(d)(3)(E) of
the Clean Air Act (the Act), and the General Preamble to Title I
provide the criteria for redesignation. See 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, ``Procedures for Processing Requests to Redesignate
Areas to Attainment''. 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 Act;
(3) The state containing the area has met all requirements
applicable to the area under section 110 and part D of the Act;
(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 Act.

B. The Limited Maintenance Plan (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'',
(hereafter the 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, the average annual PM10 design value for the area, based
upon the most recent 5 years of air quality data at all monitors in the
area, should be at or below 40 [mu]g/m\3\, and 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 values (CDV). In addition, the area should expect only limited
growth in on-road motor vehicle PM10 emissions (including fugitive

[[Page 38032]]

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 Limited Maintenance Plan Option

The transportation conformity rule (40 CFR parts 51 and 93) 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 Limited Maintenance Plan 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 Limited Maintenance Plan 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 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 Washington State Submittal Addressing the
Requirements for Redesignation and Limited Maintenance Plans.

A. Has the Spokane NAA Attained the Applicable NAAQS?

There are two separate NAAQS for PM10, an annual standard of 50
[mu]g/m3 and a 24-hour standard of 150 [mu]g/m3. States must
demonstrate that an area has attained the PM10 NAAQS through analysis
of ambient air quality data from an ambient air monitoring network
representing peak PM10 concentrations. The data should be stored in the
EPA Air Quality System (AQS) database. As stated in section II.C. of
this document, EPA determined that the Spokane NAA attained the PM10
NAAQS based on monitoring data from the calendar years 1995-1997. See
66 FR 48808 (September 24, 2001). Currently, the area is in compliance
with both of the PM10 NAAQS.
Since 1997, exceedences of the 24-hour standard occurred on
September 25, 1999 and September 25, 2001. Both of these exceedences
were flagged by the State as due to high wind events under EPA's
Natural Events Policy. Based on the information provided by Washington
about these events, other information provided by Washington regarding
control measures being implemented at the time of the events, and the
area's soil and climate characteristics, we conclude that the
exceedences that occurred on September 25, 1999 and September 25, 2001
were due to high wind natural events and that, on those dates,
anthropogenic sources contributing to the exceedences were controlled
with Best Available Control Measures (BACM). See memorandum entitled
``Assessment of Natural Even Claims for Exceedences on September 25,
1999, and September 25, 2001 in Spokane, Washington'' in the Technical
Support Document for this action. Therefore, EPA is excluding the
exceedences from September 25, 1999 and September 25, 2001 from
consideration in determining whether the area is currently attaining
the PM10 NAAQS and in calculating design values for the Limited
Maintenance Plan. The area continues to attain the 24-hour and annual
PM10 NAAQS.

B. Does the Spokane NAA Have a Fully Approved SIP Under Section 110(k)
of the Clean Air Act (the Act)?

In order to qualify for redesignation, the SIP for the area must be
fully approved under section 110(k) of the Act, and must satisfy all
requirements that apply to the area. Section 107(d)(4)(B) of the Clean
Air Act contains requirements and milestones for all initial moderate
nonattainment area SIPs including:
(1) Provisions to assure that reasonably available control measures
(RACM) (including such reductions in emissions from existing sources in
the area as may be obtained through the adoption, at a minimum, of
reasonably available control technology--RACT) shall be implemented no
later than December 10, 1993;
(2) A demonstration (including air quality modeling) that the plan
will provide for attainment as expeditiously as practicable by no later
than December 31, 1994 or, where the state is seeking an extension of
the attainment date under section 188(e), a demonstration that
attainment by December 31, 1994 is impracticable and that the plan
provides for attainment by the most expeditious alternative date
practicable (CAA sections 189(a)(1)(A));
(3) Quantitative milestones which are to be achieved every three
years and which demonstrate reasonable further progress (RFP) toward
attainment by December 31, 1994 (CAA sections 172(c)(2) and 189(c)); and
(4) Contingency measures to be implemented if the area fails to
make RFP or attain by its attainment deadline. These contingency
measures are to take effect without further action by the State or EPA.
(CAA section 172(c)(9)).
As stated above, on January 27, 1997, EPA approved Spokane's
moderate area plan including RACT/RACM for all PM10 sources except for
windblown dust and under section 188(f) of the Act, deferred action on
the attainment demonstration, emissions inventory, quantitative
milestones, control measures and contingency measures for windblown
dust sources. See 62 FR 3800. In this action, EPA is approving the area
as meeting RACM for windblown dust sources based on the implementation
of BACM to control windblown dust originating from the Columbia
Plateau. EPA generally interprets the BACM requirement as subsuming the
RACM requirement. In other words, if we determine that the measures are
indeed the ``best available,'' we have necessarily concluded that they
are ``reasonably available''. As stated above in section IV.A., EPA
concludes that BACM is implemented for windblown dust from agriculture
on the Columbia Plateau.
The remaining attainment demonstration, emissions inventory,
quantitative milestone, and control and contingency measure
requirements must be met for all PM10 sources for an approvable
moderate area plan. EPA believes that quantitative milestones and
contingency measures are no longer required in the Spokane NAA since
both of these requirements relate to the applicable attainment date,
and EPA determined that the area attained the PM10 NAAQS by December
31, 1997. We believe that Spokane meets all of the remaining
requirements for moderate area plans including control measures for
windblown dust sources, the attainment demonstration, and emissions
inventory by meeting the requirements for the Limited Maintenance Plan.
The Limited Maintenance Plan contains a detailed emissions
inventory for all sources of PM10 for the calendar

[[Page 38033]]

year 2002 including an inventory of windblown dust. The Limited
Maintenance Plan also contains control measures that address windblown
dust among other sources of PM10. We refer the reader to sections
IV.C., and IV.D., respectively for further discussion on the emissions
inventory, and control measures requirements for all sources of PM10 in
the Spokane NAA.
As previously stated, the fully approved SIP must contain an
attainment demonstration (including air quality modeling) that the plan
will provide for attainment by the applicable attainment date. As noted
above, Spokane attained the PM10 NAAQS by the applicable attainment
date (December 31, 1997) based on monitoring data from the calendar
years 1995-1997. See 66 FR 48808 (September 24, 2001). However, EPA has
not previously fully approved the State's attainment demonstration for
Spokane.
In this action, EPA concludes that the statistical demonstration of
maintenance submitted with the Limited Maintenance Plan fulfills the
attainment demonstration requirement. Generally, EPA recommends that
attainment be demonstrated according to the PM-10 SIP Development
Guideline (June 1987), which presents three methods based on Federal
regulations. Federal regulations require demonstration of attainment
``by means of a proportional model or dispersion model or other
procedure which is shown to be adequate and appropriate for such
purposes.'' See 40 CFR 51.112. See also 62 FR 18051 (April 14, 1997).
EPA believes that it is reasonable to accept the Limited Maintenance
Plan demonstration as an adequate attainment demonstration since this
maintenance demonstration ensures maintenance of the PM10 NAAQS for ten
years from the effective date of this action. Section IV.F. of this
notice contains a description of the maintenance demonstration included
with the Limited Maintenance Plan. In this action, EPA is finding the
maintenance demonstration criteria outlined in the Limited LMP Option
are satisfied. Accordingly, EPA is approving the remaining moderate
area plan requirements for the Spokane NAA; the attainment
demonstration, emissions inventory and control methods for all sources,
including windblown dust. Thus, upon the effective date of this action,
the Spokane NAA will have a fully approved moderate area plan.

C. Has the State Met All Applicable Requirements Under Section 110 and
Part D of the Act?

Section 107(d)(3)(E) of the Act requires that a state containing a
nonattainment area must meet all applicable requirements under section
110 and Part D of the Act for an 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
Washington meets these requirements.
(1) Clean Air Act Section 110 Requirements
Section 110(a)(2) of the Act 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).
For purposes of redesignation, EPA review of the Washington SIP
shows that the State has satisfied all requirements under section
110(a)(2) of the Act. Further, in 40 CFR 52.2473, EPA has approved
Washington's plan for the attainment and maintenance of the national
standards under Section 110.
(2) Part D Requirements
Part D 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
requirements as they apply to the Spokane NAA.
(3) Subpart 1, Section 172(c)
Subpart 1, section 172(c) contains general requirements for
nonattainment area plans. A thorough discussion of these requirements
may be found in the General Preamble. See 57 FR 13538 (April 16, 1992).
Clean Air Act (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.'' Since EPA determined that
the Spokane NAA was in attainment of the PM10 NAAQS by 1997, we believe
that no further showing of RFP or quantitative milestones is necessary.
See 66 FR 48808 (September 24, 2001).
(4) Section 172(c)(3)--Emissions Inventory
Section 172(c)(3) of the Act requires a comprehensive, accurate,
current inventory of actual emissions from all sources in the Spokane
PM10 nonattainment area. Washington included an emissions inventory for
the calendar year 2002 with its submittal of the LMP for the Spokane
NAA. Based on the inventory preparation plan for the PM10 2002 base
year emissions inventory, which includes windblown dust sources, EPA
believes that the 2002 base year emissions inventory is current,
accurate and comprehensive and therefore meets the requirements of
Section 172(c)(3) of the Act.
(5) Section 172(c)(5)--New Source Review (NSR)
The Clean Air Act Amendments of 1990 contained revisions to the New
Source Review (NSR) program requirements for the construction and
operation of new and modified major stationary sources located in
nonattainment areas. The Act requires states to amend their SIPS to
reflect these revisions, but does not require submittal of this element
along with the other SIP elements. The Act established June 30, 1992 as
the submittal date for the revised NSR programs (Section 189 of the
Act). The Part D NSR rules for PM10 nonattainment areas in Washington
were approved by EPA on June 2, 1995. See 60 FR 28726. In the Spokane
NAA, the requirements of the Part D NSR program will be replaced by the
Prevention of Significant Deterioration (PSD) program and the
maintenance area NSR program upon effective date of redesignation. The
Federal PSD regulations found at 40 CFR 52.21 are the PSD rules in
effect for Washington. See 40 CFR 52.2497.

[[Page 38034]]

(6) 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 accord with 40 CFR part 58 to
verify attainment status of the area. The State of Washington and
Spokane County Air Pollution Authority (SCAPCA) operate two PM10 and
PM2.5 State and Local Air Monitoring Stations (SLAMS) in the Spokane
NAA. Both monitoring sites meet EPA SLAMS network design and siting
requirements set forth at 40 CFR part 58, appendices D and E, and have
been monitoring for PM10 since 1995. In section D of the Limited
Maintenance Plan that we are approving today, the State commits to
continued operation of the monitoring network.
(7) Section 172 (c)(9) Contingency Measures
The Clean Air Act requires that contingency measures take effect if
the area fails to meet reasonable further progress requirements or
fails to attain the NAAQS by the applicable attainment date. Since the
Spokane NAA attained the NAAQS for PM10 by the applicable attainment
date of December 31, 1997, contingency measures are no longer required
under Section 172(c)(9) of the Act. However, contingency provisions are
required for maintenance plans under Section 175(a)(d). We describe the
contingency provisions Washington provided in the Spokane LMP below.
(8) Part D Subpart 4
Part D Subpart 4, Section 189(a), (c) and (e) requirements apply to
any moderate nonattainment area before the area can be redesignated to
attainment. The requirements which were applicable prior to the
submission of the request to redesignate the area must be fully
approved into the SIP before redesignating the area to attainment.
These requirements include:
(a) Provisions to assure that RACM was implemented by December 10,
1993;
(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;
(c) Quantitative milestones which were achieved every 3 years and
which demonstrate reasonable further progress (RFP) toward attainment
by December 31, 1994; 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.
These provisions, with the exception of the attainment
demonstration and quantitative milestones were fully approved into the
SIP upon EPA approval of the PM10 moderate area plan for the Spokane
NAA on January 27, 1997. See 62 FR 3800. As discussed above, the
requirements for reasonable further progress were satisfied with the
September 24, 2001 finding of attainment (66 FR 48808), and EPA is
approving the attainment demonstration, based on the maintenance
demonstration submitted with the Limited Maintenance Plan, in this action.

D. Has the State Demonstrated That the Air Quality Improvement Is Due
to Permanent and Enforceable Reductions?

The state must be able to reasonably attribute the improvement in
air quality to permanent and enforceable emission reductions. In making
this showing, the state must demonstrate 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 Spokane NAA SIP
include RACM and BACM. Emission sources in the Spokane NAA have been
implementing RACM for at least 10 years. Table 1 contains a list of
RACM implemented in Spokane. These control measures were approved into
the SIP, and they are both permanent and federally enforceable. See 62
FR 3800 (January 27, 1997).

Table 1.--Spokane Nonattainment Area Reasonably Available Control Measures
-------------------------------------------------------------------------------------------
Control Measure Jurisdiction Authority
-------------------------------------------------------------------------------------------
Reduce particulate matter by paving City of Spokane..... Res. #90-93.
unpaved streets
Reduce particulate matter by paving Spokane County...... Res. #90-1219.
unpaved streets
Reduce fugitive dust from paved roads City of Spokane..... Res. #93-43.
through sweeping/sanding mitigation
program
Reduce particulate matter from paved SCAPCA.............. Reg. 1, Sec 6.14.
roads through requirement that
government entities submit sweeping and
sanding plans
Reduce residential wood smoke through Washington State.... RCW 70.94 and WAC 173-433.
curtailment program
Reduce residential wood smoke through SCAPCA.............. Res.'s #88-03,
implementation of wood smoke control #90-08, #94-02 and
zone #94-18.
Reduce fugitive dust from unpaved roads SCAPCA.............. Res. #94-17.
through requirement that governmental
entities submit emission reduction and
control plans
-------------------------------------------------------------------------------------------

As discussed in section IV.A., Best Available Control Measures
(BACM) are in place to control wind blown dust from the Columbia
Plateau. Based on the 2003 NEAP and the 2004 status report submitted to
EPA by the Washington Department of Ecology, EPA has determined that
Spokane meets the BACM requirement for agricultural sources within the
Columbia Plateau. See the technical support document for this action
for a discussion on BACM for agricultural sources within the Columbia
Plateau.
There are two major stationary sources within the Spokane NAA, the
Kaiser Aluminum facilities at Trentwood and Mead. These have not been
evaluated specifically for RACT by either Washington or the Spokane
County Air Pollution Control Authority (SCAPCA) since analysis of the
24-hour PM10 problem indicates that industrial sources are not a major
contributor. See

[[Page 38035]]

61 FR 36001 (July 9, 1996). Although analysis indicates that neither of
the Kaiser Aluminum facilities are major contributors to 24-hour PM10
past or future exceedences, SCAPCA issued regulatory orders for the
Kaiser-Trentwood facility under WAC 173-400-091 ``Voluntary Limits on
Emissions.'' SCAPCA orders #96-03, #96-04, #96-05, and #96-06 lower the
potential to emit and #91-01 establishes an alternate opacity limit.
These orders were adopted into the SIP on January 27, 1997 (62 FR 3800),
and EPA is approving revisions to regulatory orders #96-03, #96-05, and
#96-06 with this action.
Finally, EPA believes that areas that qualify for the LMP will meet
the NAAQS, even under worst case meteorological conditions. Under the
Limited Maintenance Plan policy, the maintenance demonstration is
presumed to be satisfied if an area meets the qualifying criteria.
Thus, by qualifying for the Limited Maintenance Plan, Washington has
demonstrated that the air quality improvements in the Spokane area are
the result of permanent emission reductions and not a result of either
economic trends or meteorology. A description of the LMP qualifying
criteria and how the Spokane area meets these criteria is provided in
the following section.

E. Does the Area Have a Fully Approved Maintenance Plan Pursuant to
Section 175A of the Act?

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

F. Has the State Demonstrated That the Spokane 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. As stated above in Section IV.A., EPA has determined that the
Spokane NAA has been in attainment of the PM10 NAAQS since 1997 and
continues to meet the PM10 NAAQS for the period 1998-2002.
Second, the average design value (ADV) for the past 5 years of
monitoring data must be at or below the critical design value (CDV).
The CDV is a margin of safety value and is the value at which an area
has been determined to have a 1 in 10 probability of exceeding the
NAAQS. The LMP Option memo provides two methods for review of
monitoring data for the purpose of qualifying for the LMP option. The
first method is a comparison of a site's ADV with the CDV of 98 [mu]g/
m\3\ for the 24-hour PM10 NAAQS and 40 [mu]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 5 years of monitoring data.
The ADV for the 24-hour PM10 NAAQS for Spokane, based on data from
the Crown Zellerbach monitor for the years 1998-2002, is 110.7. This
value falls below the site-specific 24-hour CDV of 116.6 [mu]g/m\3\.
The annual ADV from the Crown Zellerbach monitor for the same period is
28.2 [mu]g/m\3\. This falls below the annual CDV provided in the LMP
Option memo of 40 [mu]g/m\3\. Therefore, Spokane meets the design value
criteria outlined in the LMP Option memo. For the 1998-2002 ADV and
1993-2003 site-specific CDV calculations for PM10 in Spokane, please
see the technical support document, Attachment H.
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 the memo, based on monitoring data for the
period 1998-2002, EPA has determined that the Spokane NAA passes the
motor vehicle regional emissions analysis test. For the calculations
used to determine that Spokane has passed the motor vehicle regional
analysis test, see the technical support document, Attachment H.
The monitoring data for the period 1998-2002 shows that Spokane has
attained the NAAQS for PM10, the 24-hour ADV and the annual ADV in
Spokane are less than the site specific 24-hour PM10 CDV and the
national annual CDV respectively. Finally, the area has met the
regional vehicle emissions analysis test. Thus, the Spokane NAA area
qualifies for the Limited Maintenance Plan option described in the LMP
Option memo.
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. One possible approach the State could take is to implement
contingency measures. In section E of the Limited Maintenance Plan,
Washington commits to evaluate, on an annual basis, the LMP criteria
for the Spokane NAA.
For these reasons and reasons explained below, we are approving the
LMP for the Spokane NAA and the State's request to redesignate the
Spokane NAA from nonattainment to attainment for PM10.

G. Does the State Have an Approved Attainment Emissions Inventory Which
Can Be Used To Demonstrate Attainment of the NAAQS?

The state's approved attainment plan should include an emissions
inventory (attainment 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 attainment inventory
if necessary. In this instance, Washington completed an attainment year
inventory for the attainment year 1997. However, this inventory was not
fully approved as it did not include emissions from windblown dust.
Washington is now using the emissions inventory for the calendar year
2002 as the attainment year inventory.
EPA has reviewed the 2002 emissions inventory and determined that
it is current, accurate and complete. EPA has also reviewed monitoring
data for the years 1997-2002, and determined that the 2002 emissions
inventory is representative of the attainment year inventory since the
NAAQS was not violated during 2002. In addition, the emissions
inventory submitted with the Limited Maintenance Plan for the calendar
year 2002 is representative of the level of emissions during the time
period used to calculate the average design value since 2002 is
included in the five year period used to calculate the design value
(1998-2002). As stated above in Section IV.C.4., the 2002 emissions
inventory meets the requirements of Section 172(c)(3) of the Act, and
the requirements for emissions inventory in Table 3.1 of the EPA
document entitled PM-10 Emission Inventory Requirements, Final Report.

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?

A PM10 monitoring network was established in the Spokane area in
October, 1985. Monitoring sites have been located in nine different
locations throughout the area since that time. The monitoring network
was developed and

[[Page 38036]]

has been maintained in accordance with federal siting and design
criteria in 40 CFR Part 58, Appendices D and E and in consultation with
Region 10. Currently, there are two PM10/PM2.5 SLAMS/NAMS monitors in
the Spokane NAA. In section IV.E. of the Spokane LMP, Washington states
that it will continue to operate its monitoring network to meet EPA
requirements.

I. Does the Plan Meet the Clean Air Act Requirements for Contingency
Provisions?

Section 175A of the Act states that a maintenance plan must include
contingency provisions, as necessary, to promptly correct any violation
of the NAAQS which may occur after redesignation of the area to
attainment. As explained in the LMP Option memo, these contingency
measures do not have to be fully adopted at the time of redesignation.
Section IV.F. of the Spokane Limited Maintenance Plan describes a
process and timeline to identify and evaluate appropriate contingency
measures in the event of a quality assured violation of the PM10 NAAQS.
Within 30 days following a violation of the PM10 NAAQS, the Spokane
County Air Pollution Control Authority (SCAPCA), the Spokane Regional
Transportation Council (SRTC) and the Washington Department of Ecology
will convene an assessment team to identify appropriate measures to be
implemented and prepare and deliver a report to the Spokane County Air
Pollution Control Authority (SCAPCA) board of directors and appropriate
staff at Washington Department of Ecology within 120 days based on:
(1) Monitoring data before and during the event;
(2) Weather conditions that may have caused and/or contributed to
the violation;
(3) Normal and unusual emissions occurring prior to and during the
event;
(4) Effectiveness of existing controls in reducing the magnitude
and/or duration of events;
(5) Appropriateness of modifying and or implementing one or more
LMP contingency measures; and
(6) Possible changes to the LMP, monitoring network, and or public
information strategies.
The plan describes contingency measures that are already in effect
or may automatically become effective in the event of a violation of
the NAAQS, subject to the assessment described above. These contingency
measures include:
(1) Unpaved Road Control Regulation: This measure, adopted by
SCAPCA in 1994 as section 6.15 of Regulation I, controls particulate
matter emissions from unpaved surfaces. The measure requires, among
other things, that the city of Spokane, Spokane County, and the Town of
Millwood submit emission reduction contingency plans for the control of
dust emissions from unpaved roads and parking lot emissions to SCAPCA
for approval. These contingency plans, if determined appropriate, will
be reviewed and updated in the event of a NAAQS violation;
(2) Ban on Uncertified Stoves: Article VIII of SCAPCA's Regulation
I contains provisions for Solid Fuel Burning Device Standards. As
amended on January 6, 1994, it enables SCAPCA to take further
residential wood-smoke control actions if the area is not in attainment
of the PM10 standard because of wood-smoke emissions.
The regulation prohibits the use of any solid fuel burning device
not meeting state certification standards. Implementation of this
regulation as a contingency measure will provide a further reduction of
wood-smoke emissions, should the assessment, as described above, find
it necessary.
The assessment team will also consider recommending other
contingency measures that may more appropriately address the most
probable source contributing to the violation. The board may adopt and
implement contingency measures other than those listed above, as
needed. EPA believes that current and proposed contingency measures in
Spokane's Limited Maintenance Plan meet the requirements for contingency
measures as outlined in the Limited Maintenance Plan 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 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 per 40 CFR 93.108;
(c) The MPO's interagency consultation procedures meet 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.
On February 10, 2005, EPA posted a proposal to find the Spokane LMP
Motor Vehicle Emissions Budget adequate for transportation conformity
purposes on EPA's conformity Web site: http://www.epa.gov/oms/traq. As
stated above, Limited Maintenance Plan budgets are unconstrained and
consequently, the adequacy review period for these maintenance plans
serves to allow the public to comment on whether limited maintenance is
appropriate for these areas. Interested parties may comment on the
adequacy and approval of the Limited Maintenance Plans by submitting
their comments on the proposed rule published concurrently with this
direct final rule. The comment period for the adequacy posting for the
Spokane LMP ended on March 15, 2005. EPA did not receive any comments
on this posting.
(2) General Conformity
For Federal actions which are 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 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

[[Page 38037]]

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. Washington has not chosen to include specific
emissions allocations for Federal projects that would be subject to the
provisions of general conformity.

V. Incorporation by Reference (IBR) Material

EPA is incorporating by reference revisions to the following
Spokane County Air Pollution Control Authority (SCAPCA) Regulatory
Orders: #96-03, effective date October 4, 2000; #96-05, effective date
October 4, 2000; and #96-06, effective date October 19, 2000.

VI. Direct Final Action

EPA is approving the Limited Maintenance Plan (LMP) for the Spokane
nonattainment area (Spokane NAA) and redesignating the Spokane NAA 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). EPA is also approving the remaining
portions of the moderate area plan (``attainment plan'') for the
Spokane NAA for all PM10 sources including windblown dust.
Also in this action, EPA is approving revisions to the Spokane
County Air Pollution Control Authority (SCAPCA) Regulatory Orders
#96-03, effective date October 4, 2000; #96-05, effective date October 4,
2000; and #96-06, effective date October 19, 2000.
EPA is publishing this action without a prior proposal because EPA
views this as a noncontroversial amendment and anticipates no adverse
comments. In the proposed rules section of this Federal Register
publication, however, EPA is publishing a separate document that will
serve as the proposal to approve the SIP revision should adverse
comments be filed. This direct final rule is effective on August 30,
2005, without further notice, unless EPA receives adverse comment by
August 1, 2005. If an adverse comment is received, EPA will publish a
timely withdrawal of the direct final rule in the Federal Register and
inform the public that the rule did not take effect. All adverse public
comments received will then be addressed in a subsequent final rule
based on the proposed rule. EPA will not institute a second comment
period on this action. Any parties interested in commenting must do so
at this time. Please note that if EPA receives adverse comment on an
amendment, paragraph, or section of this rule, EPA may adopt as final
those provisions of the rule that are not the subject of an adverse
comment.

VII. Statutory and Executive Order Reviews

Under Executive Order 12866 (58 FR 51735, October 4, 1993), this
action is not a ``significant regulatory action'' and therefore is not
subject to review by the Office of Management and Budget. For this
reason, this action is also not subject to Executive Order 13211,
``Actions Concerning Regulations That Significantly Affect Energy
Supply, Distribution, or Use'' (66 FR 28355, May 22, 2001). This action
merely approves state law as meeting Federal requirements and imposes
no additional requirements beyond those imposed by state law.
Accordingly, the Administrator certifies that this rule will not have a
significant economic impact on a substantial number of small entities
under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.). Because
this rule approves pre-existing requirements under state law and does
not impose any additional enforceable duty beyond that required by
state law, it 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).
This rule also does not have tribal implications because it will
not have a substantial direct effect on one or more Indian tribes, on
the relationship between the Federal Government and Indian tribes, or
on the distribution of power and responsibilities between the Federal
Government and Indian tribes, as specified by Executive Order 13175 (65
FR 67249, November 6, 2000). This action also does not have federalism
implications because it does not have substantial direct effects on the
States, on the relationship between the national government and the
States, or on the distribution of power and responsibilities among the
various levels of government, as specified in Executive Order 13132 (64
FR 43255, August 10, 1999). This action merely approves a state rule
implementing a Federal standard, and does not alter the relationship or
the distribution of power and responsibilities established in the Clean
Air Act. This rule also is not subject to Executive Order 13045
``Protection of Children from Environmental Health Risks and Safety
Risks'' (62 FR 19885, April 23, 1997), because it is not economically
significant.
In reviewing SIP submissions, EPA's role is to approve state
choices, provided that they meet the criteria of the Clean Air Act. In
this context, in the absence of a prior existing requirement for the
State to use voluntary consensus standards (VCS), EPA has no authority
to disapprove a SIP submission for failure to use VCS. It would thus be
inconsistent with applicable law for EPA, when it reviews a SIP
submission, to use VCS in place of a SIP submission that otherwise
satisfies the provisions of the Clean Air Act. Thus, the requirements
of section 12(d) of the National Technology Transfer and Advancement
Act of 1995 (15 U.S.C. 272 note) do not apply. This rule does not
impose an information collection burden under the provisions of the
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.).
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 rule 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 August 30, 2005. Filing a
petition for reconsideration by the Administrator of this final rule
does not affect the finality of this rule 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).

[[Page 38038]]

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.

Dated: June 17, 2005.
Daniel D. Opalski,
Acting Regional Administrator, Region 10.

? Chapter I, title 40 of the Code of Federal Regulations is amended as
follows:

PART 52--[AMENDED]

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

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

Subpart WW--Washington

? 2. Section 52.2470 is amended by adding paragraph (c)(85) to read as
follows:

Sec. 52.2470 Identification of plan.

* * * * *
(c) * * *
(85) On November 15, 2004, the Washington State Department of
Ecology submitted a PM10 Limited Maintenance Plan and requested the
redesignation of the Spokane County PM10 Nonattainment area to
attainment for PM10. The State's Limited Maintenance Plan, attainment
year emissions inventory, and the redesignation request meet the
requirements of the Clean Air Act. EPA approves the State's Limited
Maintenance Plan and Moderate Area Plan requirements for the Spokane
PM10 nonattainment area and request for redesignation to attainment.
(i) Incorporation by reference.
(A) Spokane County Air Pollution Control Authority (SCAPCA) orders
#96-03 (modified October 4, 2000), #96-05 (modified October 4, 2000) and
#96-06 (modified October 19, 2000) to regulate particulate matter
emissions from the specific emission units of the Kaiser Aluminum and
Chemical Corporation, Trentwood aluminum facility.

? 3. Section 52.2475 is amended by adding paragraph (e) (3) (i) to read
as follows:

Sec. 52.2475 Approval of plans.

(e) * * *
(3) Spokane.
(i) EPA approves as a revision to the Washington State
Implementation Plan, the Spokane County PM10 Nonattainment Area Limited
Maintenance Plan adopted by the Spokane Regional Clean Air Authority on
November 17, 2004, and adopted and submitted by the Washington
Department of Ecology on November 30, 2004.
* * * * *

PART 81--[AMENDED]

? 1. The authority citation for part 81 continues to read as follows:

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

? 2. In Sec. 81.348, the table entitled ``Washington PM-10'' is amended
by revising the entry for ``Spokane County'' to read as follows:

Sec. 81.348 Washington.

* * * * *

Washington--PM10
-----------------------------------------------------------------------------------------------
Designation Classification area
Designated area ------------------------------------------------------------
Date Type Date Type
-----------------------------------------------------------------------------------------------
* * * * * * * 8/30/05 Attainment....
Spokane County: The area bounded on the
south by a line from Universal
Transmercator (UTM) coordinate
489000mE, 5271000mN west to 458000mE,
5271000mN, thence north along a line to
coordinate 458000mE, 5288000mN, thence
east to 463000mE, 5288000mN, thence
north to 463000mE, 5292000mN, thence
east to 481000mE, 5292000mN, thence
south to 481000mE, 5288000mN, thence
east to 489000mE, 5288000mN, thence
south to the beginning coordinate,
489000mE, 5271000mN..
* * * * * * *
-----------------------------------------------------------------------------------------------

[FR Doc. 05-12946 Filed 6-30-05; 8:45 am]
BILLING CODE 6560-50-P

Notices For
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994

Approval and Promulgation of Air Quality Implementation Plans; Spokane PM10 Nonattainment Area Limited Maintenance Plan and Redesignation Request

Local Navigation