81_FR_31298 81 FR 31202 - Extension of the Attainment Date for the Oakridge, Oregon 24-Hour PM2.5

81 FR 31202 - Extension of the Attainment Date for the Oakridge, Oregon 24-Hour PM2.5

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 81, Issue 96 (May 18, 2016)

Page Range31202-31206
FR Document2016-11628

The Environmental Protection Agency (EPA) is proposing to grant a 1-year extension of the attainment date for the Oakridge, Oregon nonattainment area to meet the 2006 24-hour PM<INF>2.5</INF> NAAQS from December 31, 2015 to December 31, 2016, on the basis that the State has met the criteria for such an extension under the Clean Air Act (CAA or Act).

Federal Register, Volume 81 Issue 96 (Wednesday, May 18, 2016)
[Federal Register Volume 81, Number 96 (Wednesday, May 18, 2016)]
[Proposed Rules]
[Pages 31202-31206]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-11628]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R10-OAR-2016-0051; FRL-9946-51-Region 10]


Extension of the Attainment Date for the Oakridge, Oregon 24-Hour 
PM2.5 Nonattainment Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
grant a 1-year extension of the attainment date for the Oakridge, 
Oregon nonattainment area to meet the 2006 24-hour PM2.5 
NAAQS from December 31, 2015 to December 31, 2016, on the basis that 
the State has met the criteria for such an extension under the Clean 
Air Act (CAA or Act).

DATES:  Written comments must be received on or before June 17, 2016.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R10-
OAR-2016-0051 at http://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from Regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e. on the Web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.
    Docket: All documents in the electronic docket are listed in the 
http://www.regulations.gov index. Although listed in the index, some 
information is not publicly available, i.e., CBI or other information 
that is restricted by statute from disclosure. 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 at http://www.regulations.gov or at EPA Region 
10, Office of Air, Waste and Toxics, 1200 Sixth Avenue, Seattle, 
Washington 98101. The EPA requests that you contact the person listed 
in the FOR FURTHER INFORMATION CONTACT section to schedule your 
inspection. The Regional Office's official hours of business are Monday 
through Friday, 8:30 to 4:30, excluding Federal holidays.

FOR FURTHER INFORMATION CONTACT: Justin Spenillo at (206) 553-6125, or 
email address [email protected],gov.

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

Table of Contents

I. Background for the Proposed Action
II. Criteria for an Extension of the Attainment Date
III. Meeting the Criteria for the 1-Year Extension
    A. Oakridge Air Quality Data for 2015
    B. Oakridge Requirements and Commitments in the Applicable SIP
IV. Summary of Proposed Action
V. Statutory and Executive Order Reviews

I. Background for the Proposed Action

    On October 17, 2006, the EPA issued its final action to revise the 
PM2.5 NAAQS to establish revised 24-hour standards (71 FR 
61144). In that action, we promulgated identical revised primary and 
secondary PM2.5 standards designed to protect public health 
and welfare that specified a 24-hour PM2.5 average 
concentration of 35 [mu]g/m\3\. Specifically, the 2006 standards 
require that the 3-year average of the annual 98th percentile 
concentration may not exceed 35 [mu]g/m\3\.
    On November 13, 2009, the EPA issued a final rule designating all 
areas throughout the country for the 2006 24-hour PM2.5 
NAAQS, effective December 14, 2009 (74 FR 58688). In that action, the 
EPA designated Oakridge, Oregon and a small surrounding area as a 
nonattainment area (Oakridge NAA) based on monitor values at the 
Willamette Activity Center in Oakridge. As a result of this 
nonattainment area designation, Oregon is required to prepare and 
submit to the EPA a State Implementation Plan (SIP) revision to meet 
attainment plan requirements and to bring the Oakridge NAA into 
attainment for the 2006 24-hour PM2.5 NAAQS. The State 
submitted an attainment plan submission for the Oakridge NAA to the EPA 
by letter dated December 12, 2012 (2012 Oakridge Plan).
    On January 4, 2013, the D.C. Circuit Court issued a decision in 
NRDC v. EPA, 706 F.3d 428, holding that the EPA erred in implementing 
the 1997 PM2.5 NAAQS only pursuant to the provisions of 
subpart 1 of the Act, rather than the particulate matter specific 
provisions of subpart 4 of Part D of Title I (subpart 4). The Court did 
not vacate the 2007 PM2.5 Implementation Rule for the 1997 
PM2.5 NAAQS, but remanded it to the EPA with instructions to 
promulgate a new implementation rule for the PM2.5 NAAQS in 
accordance with the requirements of both subpart 1 and subpart 4. On 
June 6, 2013, consistent with the Court's remand decision, the EPA 
withdrew its March 2012 Implementation Guidance recommending that 
states rely on the 2007 PM2.5 Implementation Rule for 
development of attainment plans for the 2006 24-hour PM2.5 
NAAQS. Thus, the EPA withdrew the guidance it initially provided to 
states for meeting attainment plan requirements for purposes of areas 
designated nonattainment for the 2006 24-hour PM2.5 NAAQS, 
such as the Oakridge NAA.
    On June 2, 2014, in response to the NRDC decision that it implement 
the PM2.5 NAAQS pursuant to subpart 4, the EPA promulgated 
the ``PM2.5 Subpart 4 Nonattainment Classification and 
Deadline Rule'' (79 FR 31566). In that action, the EPA classified all 
areas currently designated nonattainment for both the 1997 and 2006 
PM2.5 NAAQS as ``Moderate'' nonattainment areas. That rule 
also provided guidance to states on how to meet the subpart 4 
requirements and set a deadline of December 31, 2014 for states to 
submit any revisions to previously submitted attainment plan 
submissions, as necessary to meet subpart 4 requirements. Thus, the EPA 
classified the Oakridge NAA as a Moderate nonattainment area for the 
2006 24-hour PM2.5 NAAQS and provided an

[[Page 31203]]

opportunity for the state to revise the 2012 Oakridge Plan.
    A Moderate PM2.5 nonattainment area's ambient air 
quality status is determined in accordance with Appendix N of 40 CFR 
part 50. To show attainment of the current 24-hour and annual standards 
for PM2.5, data from the most recent three consecutive years 
prior to the area's attainment date must show that PM2.5 
concentrations over the prior three year period are at or below the 
levels of the standards. A complete year of air quality data, as 
described in part 50, Appendix N, is comprised of all four calendar 
quarters with each quarter containing data from at least 75 percent of 
the scheduled sampling days.
    The EPA begins processing and analyzing data related to the 
attainment of the PM2.5 NAAQS after the applicable 
attainment date for the affected areas. Current EPA regulations, under 
40 CFR part 58, set the deadline for the state to certify its air 
quality data in the Air Quality System (AQS) database by May 1 of the 
following year. Under section 179(c), the EPA is required to determine 
as expeditiously as practicable, but not later than 6 months after the 
applicable attainment date, whether a nonattainment area has attained 
the relevant NAAQS. In the case of a state with an area that qualifies 
for an extension of the attainment date under section 188(d), however, 
the EPA has discretion instead to extend the attainment date for an 
area if the state requests the extension and meets the statutory 
criteria for such an extension.

II. Criteria for an Extension of the Attainment Date

    CAA section 188(d) allows states to apply for, and the EPA the 
discretion to grant, a 1-year extension to the statutory attainment 
date for Moderate PM10 (particulate matter with an 
aerodynamic diameter of a nominal 10 micrometers) nonattainment areas. 
Section 188(d) establishes two criteria that the EPA must consider to 
grant a requested attainment date extension: (1) The state has complied 
with all requirements and commitments pertaining to the area in the 
applicable implementation plan, and (2) no more than one exceedance of 
the 24-hour NAAQS level for PM10 has occurred in the area in 
the year preceding the extension year and the annual mean concentration 
of PM10 in the area for such year is less than or equal to 
the level of the annual standard. Section 188(d) also provides for the 
possibility that the EPA may grant a second 1-year extension if the 
Moderate area meets the specified criteria. No more than two 1-year 
attainment date extensions may be granted for a single nonattainment 
area.
    The provisions of section 188(d) thus allow a state an opportunity 
to demonstrate that a Moderate area should continue to be classified as 
Moderate and not reclassified to Serious, even if the area has monitor 
data exceeding the level of the applicable PM2.5 NAAQS in 
the calendar year preceding the otherwise applicable attainment date. 
Although section 188(d) provides the criteria for such an extension, 
the EPA believes that there are some ambiguities in the statutory 
language that warrant interpretation. Thus, in this action the EPA is 
proposing to interpret the requirements of section 188(d) in evaluating 
the extension request from the State.
    The most significant issue that the EPA must address is how to 
interpret the air quality requirement of section 188(d)(2) in light of 
the fact that the statutory language refers to PM10 rather 
than to PM2.5, and the fact that the air quality requirement 
is phrased as ``no more than one exceedance'' of the 24-hour 
PM10 NAAQS in the year prior to the otherwise applicable 
attainment date. Based upon the NRDC decision, there can be no doubt 
that the EPA must interpret the references to PM10 in 
section 188(d)(2) to encompass PM2.5. Given that fact, 
however, the EPA cannot read the ``no more than one exceedance'' 
requirement to apply literally to the PM2.5 NAAQS because of 
the distinct differences in the form of the PM10 NAAQS and 
the PM2.5 NAAQS.
    The statutory language addressing PM10 in CAA section 
188 explicitly sets ambient air quality conditions for an attainment 
date extension in terms that relate factually to the 24-hour 
PM10 NAAQS that was in effect at the time of the 1990 
Amendments of the CAA, which has a statistical form that is 
substantially different from the 24-hour PM2.5 NAAQS. The 
requirement in 188(d)(2) states that an extension may be granted if 
``no more than one exceedance of the 24-hour national ambient air 
quality standard level for PM10 has occurred in the area in 
the year preceding the Extension Year, and the annual mean 
concentration of PM10 in the area for such year is less than 
or equal to the standard level.'' Given the form of the 24-hour 
PM10 NAAQS, the requirement that an area have no more than 
one ``exceedance'' meant that there could be no more than one monitored 
value over the numerical level of the NAAQS. Such an approach is 
logical when the form of the 24-hour NAAQS allows one exceedance per 
year, on average, over a three year period. By having no more than one 
exceedance, the state was meeting the NAAQS in that last year, even if 
it did not yet meet the requirements for attainment over the requisite 
three year period. In other words, the state would be close to 
attaining the NAAQS, thus making one year extension a potentially 
appropriate way provide additional time for a state to come into 
attainment without the need for a reclassification to Serious and 
additional SIP planning efforts. By contrast, the form of the 2006 24-
hour PM2.5 NAAQS is a 98th percentile-based form and not a 
``one expected exceedance'' form as is the PM10 NAAQS. Under 
the form of the 2006 24-hour PM2.5 NAAQS, there can be a 
number of exceedances of the numerical level of the NAAQS that are 
permitted and are not considered a violation of the NAAQS. Thus, under 
the form of the 2006 24-hour PM2.5 NAAQS an area could be 
close to attaining the NAAQS in the year prior to the attainment date, 
even if there were one or more dates with monitored ``exceedances.'' 
Therefore the statutory language requires some interpretation with 
regard to how it applies to the PM2.5 NAAQS.
    For this action, the EPA is proposing to interpret section 188(d) 
for purposes of the 2006 PM2.5 NAAQS in a way that is 
equivalent to the ``no more than one exceedance'' condition that 
Congress imposed for purposes of the PM10 NAAQS. 
Accordingly, the EPA interprets the requirement to demonstrate that the 
area had ``no more than one exceedance'' of the level of the 24-hour 
PM2.5 NAAQS to mean that the state must demonstrate that the 
area had ``clean data'' in the year proceeding the extension year. 
Thus, a state seeking an attainment date extension for a Moderate 
nonattainment area for a 24-hour PM2.5 NAAQS would be 
required to demonstrate that the area had monitor data showing no 
monitored violations of the NAAQS in light of the statistical form of 
that particular standard (i.e., for the 2006 24-hour PM2.5 
NAAQS, the 98th percentile value did not exceed 35 [mu]g/m\3\) in the 
calendar year prior to the applicable attainment date for the area.
    An additional issue that the EPA must address concerning the air 
quality requirement of section 188(d)(2) is whether a state seeking an 
extension for purposes of a 24-hour PM2.5 NAAQS only, must 
nevertheless meet the portion of section 188(d)(2) that refers to the 
annual ambient air quality of such an area. The EPA notes that 
statutory language of section 188(d) does provide that a state seeking 
an extension of a Moderate area attainment date must

[[Page 31204]]

have not more than one exceedance of the 24-hour NAAQS ``and'' meet an 
annual ambient level requirement as well. The EPA believes that reading 
this provision to require a state to meet both tests, even when the 
state has an area that is designated nonattainment only for the 24-hour 
PM2.5 NAAQS and is seeking an extension of only the 
attainment date for such NAAQS, is not a logical interpretation of the 
provision. Such a reading would be logical were the area at issue 
designated nonattainment for both the 24-hour NAAQS and the annual 
NAAQS, but not if designated nonattainment only for one of those 
standards.
    The EPA is proposing to interpret section 188(d) for the 2006 24-
hour PM2.5 NAAQS to require a state only to establish that 
it meets the air quality requirement with respect to the 24-hour NAAQS 
when seeking an extension of the attainment date only for the 24-hour 
PM2.5 NAAQS. The EPA believes this interpretation of section 
188(d)(2) is appropriate for two main reasons. First, while most 
PM10 nonattainment areas were designated nonattainment for 
either just the 24-hour PM10 NAAQS or for both the 24-hour 
and annual PM10 NAAQS, the majority of current 
PM2.5 nonattainment areas are, in contrast, designated for 
either the 24-hour or the annual PM2.5 NAAQS, and should 
arguably only need to demonstrate clean data for the NAAQS for which 
the area is designated nonattainment. For those few PM2.5 
nonattainment areas designated for both 24-hour and annual 
PM2.5 NAAQS, the EPA believes it also is appropriate that a 
state must only demonstrate clean data for the specific NAAQS for which 
the state is seeking an attainment date extension because such an 
approach is consistent with the statute's overall approach to 
designating nonattainment areas and implementing control strategies for 
each separate PM2.5 NAAQS. Second, if an area is designated 
as nonattainment for both the 24-hour and annual PM2.5 
standards and receives an extension for one standard while still 
working toward a later attainment date for the other standard, the EPA 
maintains that public health protection would not be delayed because 
the state would still be subject to the ongoing mandate to adopt and 
implement measures to ensure expeditious attainment of the other 
standard.
    Section 188(d)(1) of the Act also provides that the state must have 
``. . . complied with all requirements and commitments pertaining to 
the area in the applicable implementation plan.'' As with section 
188(d)(2), the EPA believes that there are some ambiguities in the 
statutory language that warrant interpretation in order to evaluate the 
State's extension request. The EPA proposes to interpret this provision 
to mean that the state has submitted a SIP submission to address the 
attainment plan requirements for the applicable PM2.5 NAAQS 
and that the state has implemented the control measures in the SIP 
submission. This proposed interpretation is based on the plain language 
of section 188(d) that does not explicitly require that the state 
comply with all requirements applicable to the area in the CAA, but 
merely requires that the state comply with all requirements in the 
applicable SIP. In other words, the EPA believes that section 188(d)(1) 
should be interpreted to mean that so long as the state has submitted 
the necessary attainment plan for the area for the applicable 
PM2.5 NAAQS and is implementing the control measures in the 
submission, the fact that the EPA has not yet acted on such submission 
to make it an approved part of the applicable SIP should not be a 
barrier to the state obtaining an extension of the attainment date 
under section 188(d)(1).
    Under this proposed interpretation, therefore, the state has to 
demonstrate that it has submitted an attainment plan to the EPA for the 
relevant PM2.5 NAAQS and that the state is implementing 
control measures in that SIP submission. Because the extension at issue 
under section 188(d) is an extension of a Moderate area attainment 
date, it follows that the control measures in the attainment plan 
submission would be those measures that the State intended to meet the 
RACM and RACT requirements. The EPA interprets the requirement of 
section 188(d)(1) that the state have complied with the ``requirements 
and commitments'' of the applicable implementation plan to mean that 
the state must be implementing the control measures in the submitted 
attainment plan. The state must have adopted and submitted the 
attainment plan SIP revision to the EPA, but the state can qualify for 
the extension even if the EPA has not yet taken action on the SIP 
submission.
    In sum, in order for the EPA to make a decision on whether to grant 
a 1-year attainment date extension, the state is required to submit 
sufficient information to demonstrate that it has both complied with 
all requirements and commitments in the applicable implementation plan, 
and that it had ``clean'' air quality data in the attainment year, as 
explained above. Any decision made by the EPA to extend the attainment 
date for an area would be based on facts specific to the nonattainment 
area at issue.
    Section 188(d) does not specify the process by which the EPA should 
evaluate and act upon requests from states for an extension of the 
Moderate PM2.5 area attainment date. However, the EPA 
believes that an attainment date extension should only be granted after 
the EPA provides notice in the Federal Register and an opportunity for 
the public to comment. Requiring notice-and-comment rulemaking allows 
for appropriate evaluation of the relevant criteria and facts in order 
to assure that the extension is granted or denied after full 
evaluation. This process also is consistent with past practice by the 
EPA in granting attainment date extensions for PM2.5 areas. 
If this proposal is finalized, then the nonattainment area would remain 
classified as Moderate for the 2006 PM2.5 NAAQS throughout 
the 2016 calendar year. After the December 31, 2016 attainment date, 
the EPA will evaluate air quality data and other relevant information 
to determine whether the area has attained the 2006 PM2.5 
NAAQS by the December 31, 2016 attainment date.

III. Meeting the Criteria for the 1-Year Extension

    On December 14, 2015, the State of Oregon submitted a request to 
extend the Moderate area attainment date for the Oakridge NAA for the 
2006 24-hour PM2.5 NAAQS from December 31, 2015 to December 
31, 2016. This request contained documentation intended to demonstrate 
that the State meets the criteria for a 1-year attainment date 
extension for this area pursuant to CAA section 188(d). On February 11, 
2016, the Lane Regional Air Protection Agency (LRAPA) submitted an 
Oakridge Extension Request Follow-up, that provides the final quality-
assured air quality data for 2015 and documentation of efforts to 
implement the 2012 Oakridge plan during the 2015-16 winter. The EPA is 
evaluating this request in light of its statutory interpretations of 
section 188(d) with respect to the 2006 24-hour PM2.5 NAAQS.

A. Oakridge Air Quality Data for 2015

    The LRAPA implements the CAA on behalf of the State in the Oakridge 
NAA. The LRAPA monitors ambient PM2.5 at one monitoring site 
in the Oakridge NAA at the Willamette Activity Center, the area of 
expected highest concentrations. The air monitor began operation in 
1989 and has monitored continuously to the present. The monitor is a 
Federal Reference Method sampler, sampling every third day. The

[[Page 31205]]

EPA has previously approved the State's monitoring network including 
the PM2.5 network for Oakridge. The EPA verified in 2010 and 
2013 that the PM2.5 sample collection and filter handling 
procedures met Federal requirements for quality assurance and control. 
The LRAPA reviews and certifies all data from this monitor for 
compliance with these procedures and submits the data to the ODEQ. The 
ODEQ then submits the certified data to the EPA AQS data system.
    The ODEQ submitted complete certified PM2.5 monitor data 
for calendar year 2015 into the EPA AQS data system before February 28, 
2016. Likewise, the state has submitted certified data for calendar 
years 2013 and 2014 to the EPA AQS data system. Thus, the EPA AQS data 
system contains sufficient data for the EPA to evaluate whether the 
Oakridge NAA attained the 2006 24-hour PM2.5 NAAQS by the 
statutory attainment date of December 31, 2015, but also the requisite 
data to determine whether the Oakridge NAA was meeting the NAAQS in 
calendar year 2015 in order to qualify for a one year extension under 
section 188(d).
    As explained above, the EPA is interpreting the air quality 
criterion of section 188(d)(2) in order to reflect the different form 
of the NAAQS for the PM10 NAAQS in effect at the time of the 
1990 Amendments to the CAA versus the form of the 2006 PM2.5 
NAAQS. Under this proposed interpretation, a state could qualify for a 
one year extension of the Moderate area attainment date if the monitor 
data reflects that the area has ambient air quality that is at or below 
the level of the relevant PM2.5 NAAQS for the calendar year 
preceding the otherwise applicable attainment date, i.e., for the 
calendar year prior to the requested extension year. The three year 
average of the annual 98th percentile 24-hour PM2.5 values 
for 2013-2015 in the Oakridge NAA is 37 [mu]g/m\3\ and thus the EPA 
cannot find that the area has attained the 24-hour standards for this 
3-year period. However, the 98th percentile value for the single year 
of 2015 in this area is 28.9 [mu]g/m\3\, which is below the level of 
the 24-hour PM2.5 NAAQS of 35 [mu]g/m\3\.
    Because the Oakridge NAA is designated nonattainment only for the 
2006 24-hour PM2.5 NAAQS, the State only seeks a one year 
extension of the attainment date with respect to this NAAQS. As 
explained above, the EPA is interpreting the air quality criterion of 
section 188(d) to apply only with respect to the specific NAAQS for 
which a state seeks an extension. Thus, for a state seeking an 
extension of an attainment date for an area designated nonattainment 
only for the 24-hour NAAQS, section 188(d) does not require the EPA to 
evaluate the ambient air quality in the area with respect to the annual 
PM2.5 NAAQS as well. Under this proposed approach, the 
monitored annual ambient level of PM2.5 in the Oakridge NAA 
is not germane to the EPA's evaluation the extension request. However, 
the EPA notes that the annual design value for the Oakridge monitor is 
9.2 [mu]g/m\3\ for the 2012-2014 period and the preliminary design 
value is 9.6 [mu]g/m\3\ for the 2013-2015 period. Thus, even if the 
annual ambient monitored PM2.5 level were relevant to this 
extension request, the monitored PM2.5 level in the Oakridge 
NAA is well below the 15 [mu]g/m\3\ level of the 2006 annual 
PM2.5 NAAQS, as well as the 12 [mu]g/m\3\ level of the 2012 
PM2.5 NAAQS.
    For these reasons, the EPA is proposing to find that the State 
meets the ambient air quality criterion for a 1-year attainment date 
extension for the Oakridge NAA pursuant to CAA section 188(d)(2).

B. Oakridge Requirements and Commitments in the Applicable SIP

    On December 12, 2012, the Oregon Department of Environmental 
Quality (ODEQ) submitted a SIP revision to address attainment plan 
requirements for the 2006 PM2.5 NAAQS for the Oakridge NAA 
(2012 Oakridge Plan). The State intended this SIP submission to meet 
the statutory requirements for an attainment plan for purposes of the 
PM2.5 NAAQS based upon the statutory requirements and the 
EPA guidance for those requirements available at that time. Although 
the EPA anticipates that the state may elect to make an additional SIP 
submission to revise and update the 2012 Oakridge Plan, to date the 
State has not done so.
    The State developed the 2012 Oakridge Plan in order to address the 
ambient PM2.5 problem in this area through a control 
strategy designed to focus on the dominant sources of emissions in the 
area. The State has concluded that the violations of the 2006 24-hour 
PM2.5 NAAQS in the Oakridge NAA are primarily due to 
emissions of direct PM2.5 from residential wood combustion 
(RWC) from winter time home heating. Oakridge is a small rural 
community located in a valley of the western slope of the Cascade 
mountain range. Therefore, the State has ascertained that reducing 
emissions of PM2.5 to prevent violations of the 
PM2.5 NAAQS rests primarily on RWC curtailment.
    The 2012 Oakridge Plan included new control measures to address RWC 
emissions by requiring the curtailment of RWC during times when 
elevated levels of PM2.5 are predicted or occur. The RWC 
curtailment control measure was adopted, and is enforceable as a City 
of Oakridge ordinance. This ordinance, in addition to Oregon's state-
wide Heat Smart program, also requires the replacement of old 
uncertified wood stoves with EPA certified stoves when houses 
containing uncertified wood stoves are sold, and requires the 
installation of EPA certified wood stoves in new construction. The 
State provided documentation in the attainment date extension request 
to demonstrate the implementation of the Oakridge RWC curtailment 
ordinance.
    Subsequent to the submission of the 2012 Oakridge Plan submission, 
the City of Oakridge enacted revisions on November 15, 2012 and again 
on October 15, 2015 to strengthen the RWC ordinance which included 
lowering the threshold for triggering a curtailment or ``burn ban,'' 
imposing a more stringent opacity limit, and requiring that only dry, 
seasoned wood be burned for RWC. The State plans to submit a SIP 
revision to the EPA in December 2016 that will include the most recent 
RWC ordinance revisions. The State and LRAPA provided evidence of the 
adoption and implementation of the new revised ordinance in support of 
the extension request. Although the State has not yet submitted the 
ordinance revisions to the EPA for evaluation, and thus the revisions 
are not yet part of the applicable implementation plan, the Agency 
nevertheless considers these revisions an important part of the State's 
strategy for attainment of the 2006 PM2.5 NAAQS in the 
Oakridge NAA.
    As explained above, the EPA is proposing to interpret the 
compliance with applicable implementation plan criterion of section 
188(d)(1) to require that a state have made a submission intended to 
meet the attainment plan requirements for the 2006 PM2.5 
NAAQS and that the state be implementing the control measures in that 
attainment plan submission. Under this proposed interpretation, a state 
could qualify for a 1-year extension of the Moderate area attainment 
date if the state has submitted an attainment plan for the relevant 
PM2.5 NAAQS and demonstrates that it is actively 
implementing the commitments and requirements of the attainment plan at 
the time of attainment date extension request.
    The State developed and submitted the 2012 Oakridge Plan to the EPA 
for evaluation. The State also submitted information to establish that 
the control measures in the 2012 Oakridge Plan are

[[Page 31206]]

in effect and are being implemented by the LRAPA at this time as part 
of the attainment date extension request. The EPA has reviewed the 
control measures of the submitted 2012 Oakridge Plan and the 
documentation of implementation submitted as part of the extension 
request. The docket provides documentation of this including the 
official extension request that describes supplemental strategies 
currently underway, an expanded city ordinance that enhances controls 
designed to reduce emissions from residential home heating, and local 
strategies and efforts to reduce emissions. Based upon this 
information, the EPA believes that the State and the LRAPA are 
complying with the requirements and commitments of the applicable 
implementation plan, as contemplated by section 188(d)(1).
    For these reasons, the EPA is proposing to find that the State 
meets the compliance with the applicable implementation plan criterion 
for a 1-year attainment date extension for the Oakridge NAA pursuant to 
CAA section 188(d)(1).

IV. Summary of Proposed Action

    The EPA is proposing to find that the State has met the criteria 
for receiving a 1-year extension to the Moderate area attainment date 
for the 2006 PM2.5 NAAQS for the Oakridge NAA as provided in 
section 188(d) of the Act. The State is implementing the requirements 
and commitments in the applicable attainment plan for the 
PM2.5 NAAQS in the area, and the 98th percentile 24-hour 
PM2.5 air quality value for 2015 is below 35 [mu]g/m\3\. 
Accordingly, the State has established that it meets the criteria of 
section 188(d) as the EPA is proposing to interpret those requirements 
for purposes of the 2006 PM2.5 NAAQS. The EPA is therefore 
proposing to exercise the discretion granted to the Administrator by 
section 188(d) of the CAA to extend the Moderate area attainment date 
for the Oakridge NAA from December 31, 2015 to December 31, 2016.

V. 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, the EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. 
Accordingly, this proposed 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 proposed action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Orders 
12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 
2011);
     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 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 the EPA with the discretionary authority 
to address, as appropriate, disproportionate human health or 
environmental effects, using practicable and legally permissible 
methods, under Executive Order 12898 (59 FR 7629, February 16, 1994).
    The SIP is not approved to apply on any Indian reservation land or 
in any other area where the EPA or an Indian tribe has demonstrated 
that a tribe has jurisdiction. In those areas of Indian country, the 
rule does not have tribal implications and will not impose substantial 
direct costs on tribal governments or preempt tribal law as specified 
by Executive Order 13175 (65 FR 67249, November 9, 2000).

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Nitrogen dioxide, Particulate 
matter, Reporting and recordkeeping requirements, Sulfur oxides, 
Volatile organic compounds.

    Dated: May 9, 2016.
Dennis J. McLerran,
Regional Administrator, Region 10.
[FR Doc. 2016-11628 Filed 5-17-16; 8:45 am]
BILLING CODE 6560-50-P



                                               31202                  Federal Register / Vol. 81, No. 96 / Wednesday, May 18, 2016 / Proposed Rules

                                               American Housing Programs, Office of                    other file sharing system). For                       the EPA designated Oakridge, Oregon
                                               Public and Indian Housing, 451 7th                      additional submission methods, the full               and a small surrounding area as a
                                               Street SW., Room 4126, Washington, DC                   EPA public comment policy,                            nonattainment area (Oakridge NAA)
                                               20410–8000; telephone number 202–                       information about CBI or multimedia                   based on monitor values at the
                                               401–7914 (this is not a toll-free                       submissions, and general guidance on                  Willamette Activity Center in Oakridge.
                                               number). Persons with hearing or                        making effective comments, please visit               As a result of this nonattainment area
                                               speech impairments may access this                      http://www2.epa.gov/dockets/                          designation, Oregon is required to
                                               number through TTY by calling the toll-                 commenting-epa-dockets.                               prepare and submit to the EPA a State
                                               free Federal Relay Service at 800–877–                     Docket: All documents in the                       Implementation Plan (SIP) revision to
                                               8339.’’                                                 electronic docket are listed in the http://           meet attainment plan requirements and
                                                 Dated: May 12, 2016.                                  www.regulations.gov index. Although                   to bring the Oakridge NAA into
                                               Camille E. Acevedo,
                                                                                                       listed in the index, some information is              attainment for the 2006 24-hour PM2.5
                                                                                                       not publicly available, i.e., CBI or other            NAAQS. The State submitted an
                                               Associate General Counsel for Legislation and
                                               Regulations.
                                                                                                       information that is restricted by statute             attainment plan submission for the
                                                                                                       from disclosure. Certain other material,              Oakridge NAA to the EPA by letter
                                               [FR Doc. 2016–11747 Filed 5–17–16; 8:45 am]
                                                                                                       such as copyrighted material, is not                  dated December 12, 2012 (2012
                                               BILLING CODE 4210–67–P
                                                                                                       placed on the Internet and will be                    Oakridge Plan).
                                                                                                       publicly available only in hard copy                     On January 4, 2013, the D.C. Circuit
                                                                                                       form. Publicly available docket                       Court issued a decision in NRDC v. EPA,
                                               ENVIRONMENTAL PROTECTION                                materials are available at http://                    706 F.3d 428, holding that the EPA
                                               AGENCY                                                  www.regulations.gov or at EPA Region                  erred in implementing the 1997 PM2.5
                                                                                                       10, Office of Air, Waste and Toxics,                  NAAQS only pursuant to the provisions
                                               40 CFR Part 52
                                                                                                       1200 Sixth Avenue, Seattle, Washington                of subpart 1 of the Act, rather than the
                                               [EPA–R10–OAR–2016–0051; FRL–9946–51–                    98101. The EPA requests that you                      particulate matter specific provisions of
                                               Region 10]                                              contact the person listed in the FOR                  subpart 4 of Part D of Title I (subpart 4).
                                                                                                       FURTHER INFORMATION CONTACT section to                The Court did not vacate the 2007 PM2.5
                                               Extension of the Attainment Date for                    schedule your inspection. The Regional                Implementation Rule for the 1997 PM2.5
                                               the Oakridge, Oregon 24-Hour PM2.5                      Office’s official hours of business are               NAAQS, but remanded it to the EPA
                                               Nonattainment Area                                      Monday through Friday, 8:30 to 4:30,                  with instructions to promulgate a new
                                               AGENCY:  Environmental Protection                       excluding Federal holidays.                           implementation rule for the PM2.5
                                               Agency (EPA).                                           FOR FURTHER INFORMATION CONTACT:                      NAAQS in accordance with the
                                               ACTION: Proposed rule.                                  Justin Spenillo at (206) 553–6125, or                 requirements of both subpart 1 and
                                                                                                       email address spenillo.justin@epa,gov.                subpart 4. On June 6, 2013, consistent
                                               SUMMARY:   The Environmental Protection                 SUPPLEMENTARY INFORMATION:                            with the Court’s remand decision, the
                                               Agency (EPA) is proposing to grant a 1-                 Throughout this document whenever                     EPA withdrew its March 2012
                                               year extension of the attainment date for               ‘‘we,’’ ‘‘us,’’ or ‘‘our’’ is used, it is             Implementation Guidance
                                               the Oakridge, Oregon nonattainment                      intended to refer to the EPA.                         recommending that states rely on the
                                               area to meet the 2006 24-hour PM2.5                                                                           2007 PM2.5 Implementation Rule for
                                               NAAQS from December 31, 2015 to                         Table of Contents                                     development of attainment plans for the
                                               December 31, 2016, on the basis that the                I. Background for the Proposed Action                 2006 24-hour PM2.5 NAAQS. Thus, the
                                               State has met the criteria for such an                  II. Criteria for an Extension of the Attainment       EPA withdrew the guidance it initially
                                               extension under the Clean Air Act (CAA                       Date                                             provided to states for meeting
                                               or Act).                                                III. Meeting the Criteria for the 1-Year              attainment plan requirements for
                                               DATES: Written comments must be                              Extension                                        purposes of areas designated
                                               received on or before June 17, 2016.                       A. Oakridge Air Quality Data for 2015              nonattainment for the 2006 24-hour
                                                                                                          B. Oakridge Requirements and
                                               ADDRESSES: Submit your comments,                             Commitments in the Applicable SIP
                                                                                                                                                             PM2.5 NAAQS, such as the Oakridge
                                               identified by Docket ID No. EPA–R10–                    IV. Summary of Proposed Action                        NAA.
                                               OAR–2016–0051 at http://                                V. Statutory and Executive Order Reviews                 On June 2, 2014, in response to the
                                               www.regulations.gov. Follow the online                                                                        NRDC decision that it implement the
                                               instructions for submitting comments.                   I. Background for the Proposed Action                 PM2.5 NAAQS pursuant to subpart 4, the
                                               Once submitted, comments cannot be                         On October 17, 2006, the EPA issued                EPA promulgated the ‘‘PM2.5 Subpart 4
                                               edited or removed from Regulations.gov.                 its final action to revise the PM2.5                  Nonattainment Classification and
                                               The EPA may publish any comment                         NAAQS to establish revised 24-hour                    Deadline Rule’’ (79 FR 31566). In that
                                               received to its public docket. Do not                   standards (71 FR 61144). In that action,              action, the EPA classified all areas
                                               submit electronically any information                   we promulgated identical revised                      currently designated nonattainment for
                                               you consider to be Confidential                         primary and secondary PM2.5 standards                 both the 1997 and 2006 PM2.5 NAAQS
                                               Business Information (CBI) or other                     designed to protect public health and                 as ‘‘Moderate’’ nonattainment areas.
                                               information whose disclosure is                         welfare that specified a 24-hour PM2.5                That rule also provided guidance to
                                               restricted by statute. Multimedia                       average concentration of 35 mg/m3.                    states on how to meet the subpart 4
                                               submissions (audio, video, etc.) must be                Specifically, the 2006 standards require              requirements and set a deadline of
                                               accompanied by a written comment.                       that the 3-year average of the annual                 December 31, 2014 for states to submit
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                                               The written comment is considered the                   98th percentile concentration may not                 any revisions to previously submitted
                                               official comment and should include                     exceed 35 mg/m3.                                      attainment plan submissions, as
                                               discussion of all points you wish to                       On November 13, 2009, the EPA                      necessary to meet subpart 4
                                               make. The EPA will generally not                        issued a final rule designating all areas             requirements. Thus, the EPA classified
                                               consider comments or comment                            throughout the country for the 2006 24-               the Oakridge NAA as a Moderate
                                               contents located outside of the primary                 hour PM2.5 NAAQS, effective December                  nonattainment area for the 2006 24-hour
                                               submission (i.e. on the Web, cloud, or                  14, 2009 (74 FR 58688). In that action,               PM2.5 NAAQS and provided an


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                                                                      Federal Register / Vol. 81, No. 96 / Wednesday, May 18, 2016 / Proposed Rules                                             31203

                                               opportunity for the state to revise the                 attainment date extensions may be                     average, over a three year period. By
                                               2012 Oakridge Plan.                                     granted for a single nonattainment area.              having no more than one exceedance,
                                                  A Moderate PM2.5 nonattainment                          The provisions of section 188(d) thus              the state was meeting the NAAQS in
                                               area’s ambient air quality status is                    allow a state an opportunity to                       that last year, even if it did not yet meet
                                               determined in accordance with                           demonstrate that a Moderate area                      the requirements for attainment over the
                                               Appendix N of 40 CFR part 50. To show                   should continue to be classified as                   requisite three year period. In other
                                               attainment of the current 24-hour and                   Moderate and not reclassified to                      words, the state would be close to
                                               annual standards for PM2.5, data from                   Serious, even if the area has monitor                 attaining the NAAQS, thus making one
                                               the most recent three consecutive years                 data exceeding the level of the                       year extension a potentially appropriate
                                               prior to the area’s attainment date must                applicable PM2.5 NAAQS in the                         way provide additional time for a state
                                               show that PM2.5 concentrations over the                 calendar year preceding the otherwise                 to come into attainment without the
                                               prior three year period are at or below                 applicable attainment date. Although                  need for a reclassification to Serious and
                                               the levels of the standards. A complete                 section 188(d) provides the criteria for              additional SIP planning efforts. By
                                               year of air quality data, as described in               such an extension, the EPA believes that              contrast, the form of the 2006 24-hour
                                               part 50, Appendix N, is comprised of all                there are some ambiguities in the                     PM2.5 NAAQS is a 98th percentile-based
                                               four calendar quarters with each quarter                statutory language that warrant                       form and not a ‘‘one expected
                                               containing data from at least 75 percent                interpretation. Thus, in this action the              exceedance’’ form as is the PM10
                                               of the scheduled sampling days.                         EPA is proposing to interpret the                     NAAQS. Under the form of the 2006 24-
                                                  The EPA begins processing and                        requirements of section 188(d) in                     hour PM2.5 NAAQS, there can be a
                                                                                                       evaluating the extension request from                 number of exceedances of the numerical
                                               analyzing data related to the attainment
                                                                                                       the State.                                            level of the NAAQS that are permitted
                                               of the PM2.5 NAAQS after the applicable
                                                                                                          The most significant issue that the                and are not considered a violation of the
                                               attainment date for the affected areas.                 EPA must address is how to interpret
                                               Current EPA regulations, under 40 CFR                                                                         NAAQS. Thus, under the form of the
                                                                                                       the air quality requirement of section                2006 24-hour PM2.5 NAAQS an area
                                               part 58, set the deadline for the state to              188(d)(2) in light of the fact that the
                                               certify its air quality data in the Air                                                                       could be close to attaining the NAAQS
                                                                                                       statutory language refers to PM10 rather              in the year prior to the attainment date,
                                               Quality System (AQS) database by May                    than to PM2.5, and the fact that the air              even if there were one or more dates
                                               1 of the following year. Under section                  quality requirement is phrased as ‘‘no                with monitored ‘‘exceedances.’’
                                               179(c), the EPA is required to determine                more than one exceedance’’ of the 24-                 Therefore the statutory language
                                               as expeditiously as practicable, but not                hour PM10 NAAQS in the year prior to                  requires some interpretation with regard
                                               later than 6 months after the applicable                the otherwise applicable attainment                   to how it applies to the PM2.5 NAAQS.
                                               attainment date, whether a                              date. Based upon the NRDC decision,                      For this action, the EPA is proposing
                                               nonattainment area has attained the                     there can be no doubt that the EPA must               to interpret section 188(d) for purposes
                                               relevant NAAQS. In the case of a state                  interpret the references to PM10 in                   of the 2006 PM2.5 NAAQS in a way that
                                               with an area that qualifies for an                      section 188(d)(2) to encompass PM2.5.                 is equivalent to the ‘‘no more than one
                                               extension of the attainment date under                  Given that fact, however, the EPA                     exceedance’’ condition that Congress
                                               section 188(d), however, the EPA has                    cannot read the ‘‘no more than one                    imposed for purposes of the PM10
                                               discretion instead to extend the                        exceedance’’ requirement to apply                     NAAQS. Accordingly, the EPA
                                               attainment date for an area if the state                literally to the PM2.5 NAAQS because of               interprets the requirement to
                                               requests the extension and meets the                    the distinct differences in the form of               demonstrate that the area had ‘‘no more
                                               statutory criteria for such an extension.               the PM10 NAAQS and the PM2.5                          than one exceedance’’ of the level of the
                                               II. Criteria for an Extension of the                    NAAQS.                                                24-hour PM2.5 NAAQS to mean that the
                                               Attainment Date                                            The statutory language addressing                  state must demonstrate that the area had
                                                                                                       PM10 in CAA section 188 explicitly sets               ‘‘clean data’’ in the year proceeding the
                                                  CAA section 188(d) allows states to                  ambient air quality conditions for an                 extension year. Thus, a state seeking an
                                               apply for, and the EPA the discretion to                attainment date extension in terms that               attainment date extension for a
                                               grant, a 1-year extension to the statutory              relate factually to the 24-hour PM10                  Moderate nonattainment area for a 24-
                                               attainment date for Moderate PM10                       NAAQS that was in effect at the time of               hour PM2.5 NAAQS would be required
                                               (particulate matter with an aerodynamic                 the 1990 Amendments of the CAA,                       to demonstrate that the area had
                                               diameter of a nominal 10 micrometers)                   which has a statistical form that is                  monitor data showing no monitored
                                               nonattainment areas. Section 188(d)                     substantially different from the 24-hour              violations of the NAAQS in light of the
                                               establishes two criteria that the EPA                   PM2.5 NAAQS. The requirement in                       statistical form of that particular
                                               must consider to grant a requested                      188(d)(2) states that an extension may                standard (i.e., for the 2006 24-hour
                                               attainment date extension: (1) The state                be granted if ‘‘no more than one                      PM2.5 NAAQS, the 98th percentile value
                                               has complied with all requirements and                  exceedance of the 24-hour national                    did not exceed 35 mg/m3) in the
                                               commitments pertaining to the area in                   ambient air quality standard level for                calendar year prior to the applicable
                                               the applicable implementation plan,                     PM10 has occurred in the area in the                  attainment date for the area.
                                               and (2) no more than one exceedance of                  year preceding the Extension Year, and                   An additional issue that the EPA must
                                               the 24-hour NAAQS level for PM10 has                    the annual mean concentration of PM10                 address concerning the air quality
                                               occurred in the area in the year                        in the area for such year is less than or             requirement of section 188(d)(2) is
                                               preceding the extension year and the                    equal to the standard level.’’ Given the              whether a state seeking an extension for
                                               annual mean concentration of PM10 in                    form of the 24-hour PM10 NAAQS, the
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                                                                                                                                                             purposes of a 24-hour PM2.5 NAAQS
                                               the area for such year is less than or                  requirement that an area have no more                 only, must nevertheless meet the
                                               equal to the level of the annual                        than one ‘‘exceedance’’ meant that there              portion of section 188(d)(2) that refers to
                                               standard. Section 188(d) also provides                  could be no more than one monitored                   the annual ambient air quality of such
                                               for the possibility that the EPA may                    value over the numerical level of the                 an area. The EPA notes that statutory
                                               grant a second 1-year extension if the                  NAAQS. Such an approach is logical                    language of section 188(d) does provide
                                               Moderate area meets the specified                       when the form of the 24-hour NAAQS                    that a state seeking an extension of a
                                               criteria. No more than two 1-year                       allows one exceedance per year, on                    Moderate area attainment date must


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                                               31204                  Federal Register / Vol. 81, No. 96 / Wednesday, May 18, 2016 / Proposed Rules

                                               have not more than one exceedance of                    in the statutory language that warrant                would be based on facts specific to the
                                               the 24-hour NAAQS ‘‘and’’ meet an                       interpretation in order to evaluate the               nonattainment area at issue.
                                               annual ambient level requirement as                     State’s extension request. The EPA                       Section 188(d) does not specify the
                                               well. The EPA believes that reading this                proposes to interpret this provision to               process by which the EPA should
                                               provision to require a state to meet both               mean that the state has submitted a SIP               evaluate and act upon requests from
                                               tests, even when the state has an area                  submission to address the attainment                  states for an extension of the Moderate
                                               that is designated nonattainment only                   plan requirements for the applicable                  PM2.5 area attainment date. However,
                                               for the 24-hour PM2.5 NAAQS and is                      PM2.5 NAAQS and that the state has                    the EPA believes that an attainment date
                                               seeking an extension of only the                        implemented the control measures in                   extension should only be granted after
                                               attainment date for such NAAQS, is not                  the SIP submission. This proposed                     the EPA provides notice in the Federal
                                               a logical interpretation of the provision.              interpretation is based on the plain                  Register and an opportunity for the
                                               Such a reading would be logical were                    language of section 188(d) that does not              public to comment. Requiring notice-
                                               the area at issue designated                            explicitly require that the state comply              and-comment rulemaking allows for
                                               nonattainment for both the 24-hour                      with all requirements applicable to the               appropriate evaluation of the relevant
                                               NAAQS and the annual NAAQS, but                         area in the CAA, but merely requires                  criteria and facts in order to assure that
                                               not if designated nonattainment only for                that the state comply with all                        the extension is granted or denied after
                                               one of those standards.                                 requirements in the applicable SIP. In                full evaluation. This process also is
                                                  The EPA is proposing to interpret                    other words, the EPA believes that                    consistent with past practice by the EPA
                                               section 188(d) for the 2006 24-hour                     section 188(d)(1) should be interpreted               in granting attainment date extensions
                                               PM2.5 NAAQS to require a state only to                  to mean that so long as the state has                 for PM2.5 areas. If this proposal is
                                               establish that it meets the air quality                 submitted the necessary attainment plan               finalized, then the nonattainment area
                                               requirement with respect to the 24-hour                 for the area for the applicable PM2.5                 would remain classified as Moderate for
                                               NAAQS when seeking an extension of                      NAAQS and is implementing the                         the 2006 PM2.5 NAAQS throughout the
                                               the attainment date only for the 24-hour                control measures in the submission, the               2016 calendar year. After the December
                                               PM2.5 NAAQS. The EPA believes this                      fact that the EPA has not yet acted on                31, 2016 attainment date, the EPA will
                                               interpretation of section 188(d)(2) is                  such submission to make it an approved                evaluate air quality data and other
                                               appropriate for two main reasons. First,                part of the applicable SIP should not be              relevant information to determine
                                               while most PM10 nonattainment areas                     a barrier to the state obtaining an                   whether the area has attained the 2006
                                               were designated nonattainment for                       extension of the attainment date under                PM2.5 NAAQS by the December 31, 2016
                                               either just the 24-hour PM10 NAAQS or                   section 188(d)(1).                                    attainment date.
                                               for both the 24-hour and annual PM10                       Under this proposed interpretation,
                                                                                                                                                             III. Meeting the Criteria for the 1-Year
                                               NAAQS, the majority of current PM2.5                    therefore, the state has to demonstrate
                                                                                                                                                             Extension
                                               nonattainment areas are, in contrast,                   that it has submitted an attainment plan
                                               designated for either the 24-hour or the                to the EPA for the relevant PM2.5                        On December 14, 2015, the State of
                                               annual PM2.5 NAAQS, and should                          NAAQS and that the state is                           Oregon submitted a request to extend
                                               arguably only need to demonstrate clean                 implementing control measures in that                 the Moderate area attainment date for
                                               data for the NAAQS for which the area                   SIP submission. Because the extension                 the Oakridge NAA for the 2006 24-hour
                                               is designated nonattainment. For those                  at issue under section 188(d) is an                   PM2.5 NAAQS from December 31, 2015
                                               few PM2.5 nonattainment areas                           extension of a Moderate area attainment               to December 31, 2016. This request
                                               designated for both 24-hour and annual                  date, it follows that the control                     contained documentation intended to
                                               PM2.5 NAAQS, the EPA believes it also                   measures in the attainment plan                       demonstrate that the State meets the
                                               is appropriate that a state must only                   submission would be those measures                    criteria for a 1-year attainment date
                                               demonstrate clean data for the specific                 that the State intended to meet the                   extension for this area pursuant to CAA
                                               NAAQS for which the state is seeking                    RACM and RACT requirements. The                       section 188(d). On February 11, 2016,
                                               an attainment date extension because                    EPA interprets the requirement of                     the Lane Regional Air Protection
                                               such an approach is consistent with the                 section 188(d)(1) that the state have                 Agency (LRAPA) submitted an Oakridge
                                               statute’s overall approach to designating               complied with the ‘‘requirements and                  Extension Request Follow-up, that
                                               nonattainment areas and implementing                    commitments’’ of the applicable                       provides the final quality-assured air
                                               control strategies for each separate PM2.5              implementation plan to mean that the                  quality data for 2015 and
                                               NAAQS. Second, if an area is                            state must be implementing the control                documentation of efforts to implement
                                               designated as nonattainment for both                    measures in the submitted attainment                  the 2012 Oakridge plan during the
                                               the 24-hour and annual PM2.5 standards                  plan. The state must have adopted and                 2015–16 winter. The EPA is evaluating
                                               and receives an extension for one                       submitted the attainment plan SIP                     this request in light of its statutory
                                               standard while still working toward a                   revision to the EPA, but the state can                interpretations of section 188(d) with
                                               later attainment date for the other                     qualify for the extension even if the EPA             respect to the 2006 24-hour PM2.5
                                               standard, the EPA maintains that public                 has not yet taken action on the SIP                   NAAQS.
                                               health protection would not be delayed                  submission.
                                                                                                          In sum, in order for the EPA to make               A. Oakridge Air Quality Data for 2015
                                               because the state would still be subject
                                               to the ongoing mandate to adopt and                     a decision on whether to grant a 1-year                 The LRAPA implements the CAA on
                                               implement measures to ensure                            attainment date extension, the state is               behalf of the State in the Oakridge NAA.
                                               expeditious attainment of the other                     required to submit sufficient                         The LRAPA monitors ambient PM2.5 at
                                                                                                                                                             one monitoring site in the Oakridge
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                                               standard.                                               information to demonstrate that it has
                                                  Section 188(d)(1) of the Act also                    both complied with all requirements                   NAA at the Willamette Activity Center,
                                               provides that the state must have ‘‘. . .               and commitments in the applicable                     the area of expected highest
                                               complied with all requirements and                      implementation plan, and that it had                  concentrations. The air monitor began
                                               commitments pertaining to the area in                   ‘‘clean’’ air quality data in the                     operation in 1989 and has monitored
                                               the applicable implementation plan.’’                   attainment year, as explained above.                  continuously to the present. The
                                               As with section 188(d)(2), the EPA                      Any decision made by the EPA to                       monitor is a Federal Reference Method
                                               believes that there are some ambiguities                extend the attainment date for an area                sampler, sampling every third day. The


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                                                                      Federal Register / Vol. 81, No. 96 / Wednesday, May 18, 2016 / Proposed Rules                                            31205

                                               EPA has previously approved the State’s                 attainment date for an area designated                emissions by requiring the curtailment
                                               monitoring network including the PM2.5                  nonattainment only for the 24-hour                    of RWC during times when elevated
                                               network for Oakridge. The EPA verified                  NAAQS, section 188(d) does not require                levels of PM2.5 are predicted or occur.
                                               in 2010 and 2013 that the PM2.5 sample                  the EPA to evaluate the ambient air                   The RWC curtailment control measure
                                               collection and filter handling                          quality in the area with respect to the               was adopted, and is enforceable as a
                                               procedures met Federal requirements                     annual PM2.5 NAAQS as well. Under                     City of Oakridge ordinance. This
                                               for quality assurance and control. The                  this proposed approach, the monitored                 ordinance, in addition to Oregon’s state-
                                               LRAPA reviews and certifies all data                    annual ambient level of PM2.5 in the                  wide Heat Smart program, also requires
                                               from this monitor for compliance with                   Oakridge NAA is not germane to the                    the replacement of old uncertified wood
                                               these procedures and submits the data                   EPA’s evaluation the extension request.               stoves with EPA certified stoves when
                                               to the ODEQ. The ODEQ then submits                      However, the EPA notes that the annual                houses containing uncertified wood
                                               the certified data to the EPA AQS data                  design value for the Oakridge monitor is              stoves are sold, and requires the
                                               system.                                                 9.2 mg/m3 for the 2012–2014 period and                installation of EPA certified wood
                                                  The ODEQ submitted complete                          the preliminary design value is 9.6 mg/               stoves in new construction. The State
                                               certified PM2.5 monitor data for calendar               m3 for the 2013–2015 period. Thus,                    provided documentation in the
                                               year 2015 into the EPA AQS data system                  even if the annual ambient monitored                  attainment date extension request to
                                               before February 28, 2016. Likewise, the                 PM2.5 level were relevant to this                     demonstrate the implementation of the
                                               state has submitted certified data for                  extension request, the monitored PM2.5                Oakridge RWC curtailment ordinance.
                                               calendar years 2013 and 2014 to the                     level in the Oakridge NAA is well below                  Subsequent to the submission of the
                                               EPA AQS data system. Thus, the EPA                      the 15 mg/m3 level of the 2006 annual                 2012 Oakridge Plan submission, the City
                                               AQS data system contains sufficient                     PM2.5 NAAQS, as well as the 12 mg/m3                  of Oakridge enacted revisions on
                                               data for the EPA to evaluate whether the                level of the 2012 PM2.5 NAAQS.                        November 15, 2012 and again on
                                               Oakridge NAA attained the 2006 24-                         For these reasons, the EPA is                      October 15, 2015 to strengthen the RWC
                                               hour PM2.5 NAAQS by the statutory                       proposing to find that the State meets                ordinance which included lowering the
                                               attainment date of December 31, 2015,                   the ambient air quality criterion for a 1-            threshold for triggering a curtailment or
                                               but also the requisite data to determine                year attainment date extension for the                ‘‘burn ban,’’ imposing a more stringent
                                               whether the Oakridge NAA was meeting                    Oakridge NAA pursuant to CAA section                  opacity limit, and requiring that only
                                               the NAAQS in calendar year 2015 in                      188(d)(2).                                            dry, seasoned wood be burned for RWC.
                                               order to qualify for a one year extension                                                                     The State plans to submit a SIP revision
                                                                                                       B. Oakridge Requirements and
                                               under section 188(d).                                                                                         to the EPA in December 2016 that will
                                                  As explained above, the EPA is                       Commitments in the Applicable SIP
                                                                                                                                                             include the most recent RWC ordinance
                                               interpreting the air quality criterion of                  On December 12, 2012, the Oregon                   revisions. The State and LRAPA
                                               section 188(d)(2) in order to reflect the               Department of Environmental Quality                   provided evidence of the adoption and
                                               different form of the NAAQS for the                     (ODEQ) submitted a SIP revision to                    implementation of the new revised
                                               PM10 NAAQS in effect at the time of the                 address attainment plan requirements                  ordinance in support of the extension
                                               1990 Amendments to the CAA versus                       for the 2006 PM2.5 NAAQS for the                      request. Although the State has not yet
                                               the form of the 2006 PM2.5 NAAQS.                       Oakridge NAA (2012 Oakridge Plan).                    submitted the ordinance revisions to the
                                               Under this proposed interpretation, a                   The State intended this SIP submission                EPA for evaluation, and thus the
                                               state could qualify for a one year                      to meet the statutory requirements for                revisions are not yet part of the
                                               extension of the Moderate area                          an attainment plan for purposes of the                applicable implementation plan, the
                                               attainment date if the monitor data                     PM2.5 NAAQS based upon the statutory                  Agency nevertheless considers these
                                               reflects that the area has ambient air                  requirements and the EPA guidance for                 revisions an important part of the State’s
                                               quality that is at or below the level of                those requirements available at that                  strategy for attainment of the 2006 PM2.5
                                               the relevant PM2.5 NAAQS for the                        time. Although the EPA anticipates that               NAAQS in the Oakridge NAA.
                                               calendar year preceding the otherwise                   the state may elect to make an                           As explained above, the EPA is
                                               applicable attainment date, i.e., for the               additional SIP submission to revise and               proposing to interpret the compliance
                                               calendar year prior to the requested                    update the 2012 Oakridge Plan, to date                with applicable implementation plan
                                               extension year. The three year average                  the State has not done so.                            criterion of section 188(d)(1) to require
                                               of the annual 98th percentile 24-hour                      The State developed the 2012                       that a state have made a submission
                                               PM2.5 values for 2013–2015 in the                       Oakridge Plan in order to address the                 intended to meet the attainment plan
                                               Oakridge NAA is 37 mg/m3 and thus the                   ambient PM2.5 problem in this area                    requirements for the 2006 PM2.5 NAAQS
                                               EPA cannot find that the area has                       through a control strategy designed to                and that the state be implementing the
                                               attained the 24-hour standards for this                 focus on the dominant sources of                      control measures in that attainment plan
                                               3-year period. However, the 98th                        emissions in the area. The State has                  submission. Under this proposed
                                               percentile value for the single year of                 concluded that the violations of the                  interpretation, a state could qualify for
                                               2015 in this area is 28.9 mg/m3, which                  2006 24-hour PM2.5 NAAQS in the                       a 1-year extension of the Moderate area
                                               is below the level of the 24-hour PM2.5                 Oakridge NAA are primarily due to                     attainment date if the state has
                                               NAAQS of 35 mg/m3.                                      emissions of direct PM2.5 from                        submitted an attainment plan for the
                                                  Because the Oakridge NAA is                          residential wood combustion (RWC)                     relevant PM2.5 NAAQS and
                                               designated nonattainment only for the                   from winter time home heating.                        demonstrates that it is actively
                                               2006 24-hour PM2.5 NAAQS, the State                     Oakridge is a small rural community                   implementing the commitments and
                                               only seeks a one year extension of the
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                                                                                                       located in a valley of the western slope              requirements of the attainment plan at
                                               attainment date with respect to this                    of the Cascade mountain range.                        the time of attainment date extension
                                               NAAQS. As explained above, the EPA is                   Therefore, the State has ascertained that             request.
                                               interpreting the air quality criterion of               reducing emissions of PM2.5 to prevent                   The State developed and submitted
                                               section 188(d) to apply only with                       violations of the PM2.5 NAAQS rests                   the 2012 Oakridge Plan to the EPA for
                                               respect to the specific NAAQS for                       primarily on RWC curtailment.                         evaluation. The State also submitted
                                               which a state seeks an extension. Thus,                   The 2012 Oakridge Plan included new                 information to establish that the control
                                               for a state seeking an extension of an                  control measures to address RWC                       measures in the 2012 Oakridge Plan are


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                                               31206                  Federal Register / Vol. 81, No. 96 / Wednesday, May 18, 2016 / Proposed Rules

                                               in effect and are being implemented by   Federal requirements and does not                                      Dated: May 9, 2016.
                                               the LRAPA at this time as part of the    impose additional requirements beyond                                Dennis J. McLerran,
                                               attainment date extension request. The   those imposed by state law. For that                                 Regional Administrator, Region 10.
                                               EPA has reviewed the control measures    reason, this proposed action:                                        [FR Doc. 2016–11628 Filed 5–17–16; 8:45 am]
                                               of the submitted 2012 Oakridge Plan         • Is not a ‘‘significant regulatory                               BILLING CODE 6560–50–P
                                               and the documentation of                 action’’ subject to review by the Office
                                               implementation submitted as part of the  of Management and Budget under
                                               extension request. The docket provides   Executive Orders 12866 (58 FR 51735,                                 ENVIRONMENTAL PROTECTION
                                               documentation of this including the      October 4, 1993) and 13563 (76 FR 3821,                              AGENCY
                                               official extension request that describesJanuary 21, 2011);
                                               supplemental strategies currently           • does not impose an information                                  40 CFR Part 52
                                               underway, an expanded city ordinance     collection burden under the provisions                               [EPA–R09–OAR–2016–0164; FRL–9946–
                                               that enhances controls designed to       of the Paperwork Reduction Act (44                                   358–Region 9]
                                               reduce emissions from residential home   U.S.C. 3501 et seq.);
                                               heating, and local strategies and efforts   • is certified as not having a                                    Determination of Attainment of the 1-
                                               to reduce emissions. Based upon this     significant economic impact on a                                     Hour Ozone National Ambient Air
                                               information, the EPA believes that the   substantial number of small entities                                 Quality Standard in the San Joaquin
                                               State and the LRAPA are complying        under the Regulatory Flexibility Act (5                              Valley Nonattainment Area in
                                               with the requirements and                U.S.C. 601 et seq.);                                                 California
                                               commitments of the applicable               • does not contain any unfunded
                                               implementation plan, as contemplated     mandate or significantly or uniquely                                 AGENCY:  Environmental Protection
                                               by section 188(d)(1).                    affect small governments, as described                               Agency (EPA).
                                                  For these reasons, the EPA is         in the Unfunded Mandates Reform Act                                  ACTION: Proposed rule.
                                               proposing to find that the State meets   of 1995 (Pub. L. 104–4);                                             SUMMARY:    The Environmental Protection
                                               the compliance with the applicable          • does not have Federalism
                                                                                                                                                             Agency (EPA) is proposing to determine
                                               implementation plan criterion for a 1-   implications as specified in Executive
                                                                                                                                                             that the San Joaquin Valley
                                               year attainment date extension for the   Order 13132 (64 FR 43255, August 10,
                                                                                                                                                             nonattainment area has attained the 1-
                                               Oakridge NAA pursuant to CAA section     1999);                                                               hour ozone National Ambient Air
                                               188(d)(1).                                  • is not an economically significant
                                                                                                                                                             Quality Standard. This proposed
                                                                                        regulatory action based on health or
                                               IV. Summary of Proposed Action                                                                                determination is based on the most
                                                                                        safety risks subject to Executive Order
                                                  The EPA is proposing to find that the                                                                      recent three-year period (2012–2014) of
                                                                                        13045 (62 FR 19885, April 23, 1997);
                                                                                                                                                             sufficient, quality-assured, and certified
                                               State has met the criteria for receiving    • is not a significant regulatory action
                                               a 1-year extension to the Moderate area                                                                       data. Preliminary data for 2015 are
                                                                                        subject to Executive Order 13211 (66 FR
                                               attainment date for the 2006 PM2.5                                                                            consistent with continued attainment of
                                                                                        28355, May 22, 2001);
                                               NAAQS for the Oakridge NAA as               • is not subject to requirements of                               the standard in the San Joaquin Valley.
                                               provided in section 188(d) of the Act.   Section 12(d) of the National                                        DATES: Any comments must arrive by
                                               The State is implementing the            Technology Transfer and Advancement                                  June 17, 2016.
                                               requirements and commitments in the      Act of 1995 (15 U.S.C. 272 note) because                             ADDRESSES: Submit your comments,
                                               applicable attainment plan for the PM2.5 application of those requirements would                              identified by Docket ID No. EPA–R09–
                                               NAAQS in the area, and the 98th          be inconsistent with the Clean Air Act;                              OAR–2016–0164 at http://
                                               percentile 24-hour PM2.5 air quality     and                                                                  www.regulations.gov, or via email to
                                               value for 2015 is below 35 mg/m3.           • does not provide the EPA with the                               lee.anita@epa.gov. For comments
                                               Accordingly, the State has established   discretionary authority to address, as                               submitted at Regulations.gov, follow the
                                               that it meets the criteria of section    appropriate, disproportionate human                                  online instructions for submitting
                                               188(d) as the EPA is proposing to        health or environmental effects, using                               comments. Once submitted, comments
                                               interpret those requirements for         practicable and legally permissible                                  cannot be edited or removed from
                                               purposes of the 2006 PM2.5 NAAQS. The methods, under Executive Order 12898                                    Regulations.gov. For either manner of
                                               EPA is therefore proposing to exercise   (59 FR 7629, February 16, 1994).                                     submission, the EPA may publish any
                                               the discretion granted to the               The SIP is not approved to apply on                               comment received to its public docket.
                                               Administrator by section 188(d) of the   any Indian reservation land or in any                                Do not submit electronically any
                                               CAA to extend the Moderate area          other area where the EPA or an Indian                                information you consider to be
                                               attainment date for the Oakridge NAA     tribe has demonstrated that a tribe has                              Confidential Business Information (CBI)
                                               from December 31, 2015 to December       jurisdiction. In those areas of Indian                               or other information whose disclosure is
                                               31, 2016.                                country, the rule does not have tribal                               restricted by statute. Multimedia
                                                                                        implications and will not impose                                     submissions (audio, video, etc.) must be
                                               V. Statutory and Executive Order                                                                              accompanied by a written comment.
                                                                                        substantial direct costs on tribal
                                               Reviews                                                                                                       The written comment is considered the
                                                                                        governments or preempt tribal law as
                                                  Under the Clean Air Act, the          specified by Executive Order 13175 (65                               official comment and should include
                                               Administrator is required to approve a   FR 67249, November 9, 2000).                                         discussion of all points you wish to
                                               SIP submission that complies with the                                                                         make. The EPA will generally not
                                               provisions of the Act and applicable     List of Subjects in 40 CFR Part 52                                   consider comments or comment
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                                               Federal regulations. 42 U.S.C. 7410(k);     Environmental protection, Air                                     contents located outside of the primary
                                               40 CFR 52.02(a). Thus, in reviewing SIP pollution control, Incorporation by                                   submission (i.e., on the Web, cloud, or
                                               submissions, the EPA’s role is to        reference, Intergovernmental relations,                              other file sharing system). For
                                               approve state choices, provided that     Nitrogen dioxide, Particulate matter,                                additional submission methods, please
                                               they meet the criteria of the Clean Air  Reporting and recordkeeping                                          contact the person identified in the FOR
                                               Act. Accordingly, this proposed action   requirements, Sulfur oxides, Volatile                                FURTHER INFORMATION CONTACT section.
                                               merely approves state law as meeting     organic compounds.                                                   For the EPA’s full public comment


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Document Created: 2016-05-18 00:07:07
Document Modified: 2016-05-18 00:07:07
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionProposed rule.
DatesWritten comments must be received on or before June 17, 2016.
ContactJustin Spenillo at (206) 553-6125, or
FR Citation81 FR 31202 
CFR AssociatedEnvironmental Protection; Air Pollution Control; Incorporation by Reference; Intergovernmental Relations; Nitrogen Dioxide; Particulate Matter; Reporting and Recordkeeping Requirements; Sulfur Oxides and Volatile Organic Compounds

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