Document ID: EPA-R01-OAR-2011-0711-0001
Agency: epa
Document Type: Proposed Rule
Title: Approvals and Promulgations of Air Quality Implementation Plans: Connecticut; Determinations of Attainment of One-Hour Ozone Standard
Posted Date: 2011-11-23T05:00Z

[Federal Register Volume 76, Number 226 (Wednesday, November 23, 2011)]
[Proposed Rules]
[Pages 72377-72382]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-30254]

[[Page 72377]]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R01-OAR-2011-0711; A-1-FRL-9496-2]

Approval and Promulgation of Air Quality Implementation Plans; 
Connecticut; Determinations of Attainment of the One-Hour Ozone 
Standard

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The EPA is proposing to determine that the Greater Connecticut 
serious one-hour ozone nonattainment area did not meet the applicable 
deadline of November 15, 2007, for attaining the one-hour National 
Ambient Air Quality Standard (NAAQS) for ozone. This proposed 
determination is based upon complete, quality-assured, certified 
ambient air monitoring data that show the area had an expected ozone 
exceedance rate above the level of the now revoked one-hour ozone NAAQS 
for the 2005-2007 monitoring period. Separate from and independent of 
this proposed determination, EPA is also proposing to determine that 
the Greater Connecticut serious one-hour ozone nonattainment area 
currently attains the now revoked one-hour NAAQS for ozone, based upon 
complete, quality-assured, certified ambient air monitoring data for 
2008-2010. The area first attained the one-hour NAAQS during the 2006-
2008 monitoring period, and continued in attainment during the 2007-
2009, and 2008-2010 monitoring periods. Preliminary data available for 
2011 also show the area continues to meet the one-hour NAAQS for ozone. 
EPA is proposing these determinations under the Clean Air Act.

DATES: Written comments must be received on or before December 23, 
2011.

ADDRESSES: Submit your comments, identified by Docket ID Number EPA-
R01-OAR-2011-0711 by one of the following methods:
    1. http://www.regulations.gov: Follow the online instructions for 
submitting comments.
    2. Email: arnold.anne@epa.gov.
    3. Fax: (617) 918-0047.
    4. Mail: ``Docket Identification Number EPA-R01-OAR-2011-0711, '' 
Anne Arnold, U.S. Environmental Protection Agency, EPA New England 
Regional Office, 5 Post Office Square, Suite 100 (mail code: OEP05-2), 
Boston, MA 02109-3912.
    5. Hand Delivery or Courier. Deliver your comments to: Anne Arnold, 
Manager, Air Quality Planning Unit, Office of Ecosystem Protection, 
U.S. Environmental Protection Agency, EPA New England Regional Office, 
5 Post Office Square, Suite 100, Boston, MA 02109-3912. Such deliveries 
are only accepted during the Regional Office's normal hours of 
operation. The Regional Office's official hours of business are Monday 
through Friday, 8:30 to 4:30, excluding legal holidays.
    Instructions: Direct your comments to Docket ID No. EPA-R01-OAR-
2011-0711. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
http://www.regulations.gov, including any personal information 
provided, unless the comment includes information claimed to be 
Confidential Business Information (CBI) or other information whose 
disclosure is restricted by statute. Do not submit through http://www.regulations.gov, or email, information that you consider to be CBI 
or otherwise protected. The http://www.regulations.gov Web site is an 
``anonymous access'' system, which means EPA will not know your 
identity or contact information unless you provide it in the body of 
your comment. If you send an email comment directly to EPA without 
going through http://www.regulations.gov your email address will be 
automatically captured and included as part of the comment that is 
placed in the public docket and made available on the Internet. If you 
submit an electronic comment, EPA recommends that you include your name 
and other contact information in the body of your comment and with any 
disk or CD-ROM you submit. If EPA cannot read your comment due to 
technical difficulties and cannot contact you for clarification, EPA 
may not be able to consider your comment. Electronic files should avoid 
the use of special characters, any form of encryption, and be free of 
any defects or viruses.
    Docket: All documents in the 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 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, is not placed on the Internet and will be 
publicly available only in hard copy form. Publicly available docket 
materials are available either electronically in http://www.regulations.gov or in hard copy at Office of Ecosystem Protection, 
U.S. Environmental Protection Agency, EPA New England Regional Office, 
5 Post Office Square, Suite 100, Boston, MA. EPA requests that if at 
all possible, you contact the person listed in the FOR FURTHER 
INFORMATION CONTACT section to schedule your inspection. The Regional 
Office's official hours of business are Monday through Friday, 8:30 to 
4:30, excluding legal holidays.

FOR FURTHER INFORMATION CONTACT: Richard P. Burkhart, Air Quality 
Planning Unit, U.S. Environmental Protection Agency, EPA New England 
Regional Office, 5 Post Office Square, Suite 100, Boston, MA 02109-
3912, telephone number (617) 918-1664, fax number (617) 918-0664, email 
Burkhart.Richard@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean EPA.
    Organization of this document. The following outline is provided to 
aid in locating information in this preamble:

I. What is EPA proposing?
    A. Proposed Determination of Failure to Attain by Applicable 
Attainment Date
    B. Proposed Determination of Current Attainment
II. What is the background for these proposed actions?
    A. Statutory and Regulatory Background
    B. Basis and Effect of Proposed Determinations
III. What is EPA's analysis of data for purposes of determining 
attainment of the one-hour ozone standard?
    A. How does EPA compute whether an area meets the one-hour ozone 
standard?
    B. EPA's Analysis of the One-Hour Ozone Data for the Greater 
Connecticut Area
IV. Proposed Determinations
V. Statutory and Executive Order Reviews

I. What is EPA proposing?

    EPA is proposing two separate and independent actions for the 
Greater Connecticut one-hour ozone serious nonattainment area 
(hereafter, ``the Greater Connecticut area'').

A. Proposed Determination of Failure to Attain by Applicable Attainment 
Date

    EPA is proposing to determine that the Greater Connecticut area did 
not attain the one-hour ozone NAAQS by the applicable attainment date, 
November 15, 2007. This proposed determination is based upon complete, 
quality-assured and certified air quality monitoring data for the 2005 
through 2007 ozone seasons.

B. Proposed Determination of Current Attainment

    In addition, EPA is proposing to determine that the Greater 
Connecticut area is currently attaining the one-hour

[[Page 72378]]

ozone NAAQS based upon complete, quality-assured and certified ambient 
air monitoring data showing the area currently monitors monitored 
attainment of the one-hour ozone NAAQS, and that it has done so 
continuously since the 2006-2008 monitoring period. If this proposed 
determination is finalized, any obligations related to one-hour ozone 
contingency measures in the Greater Connecticut area shall be suspended 
for so long as the area continues to attain the one-hour ozone NAAQS.

II. What is the background for these proposed actions?

A. Statutory and Regulatory Background

    EPA designated the Greater Connecticut area as nonattainment for 
one-hour ozone following the enactment of the Clean Air Act (CAA) 
Amendments of 1990. Most areas of the country that EPA designated 
nonattainment for the one-hour ozone NAAQS were classified by operation 
of law as marginal, moderate, serious, severe, or extreme, depending on 
the severity of the area's air quality problem. See CAA sections 
107(d)(1)(C) and 181(a). The Greater Connecticut area was classified as 
serious. The one-hour ozone attainment deadline for the Greater 
Connecticut serious area was initially set for November 15, 1999, and 
later extended to November 15, 2007 based on EPA's Attainment Date 
Extension Policy. See 66 FR 634, January 3, 2001. The Greater 
Connecticut one-hour ozone nonattainment area consists of most of 
Connecticut, with the following exceptions: Bridgetown and New Milford 
in Litchfield County are excluded. Also, Fairfield County is excluded, 
save the City of Sheldon. See 40 CFR 81.307. The entire state was 
designated nonattainment for the one-hour standard, and divided into 
two nonattainment areas: Greater Connecticut and the Connecticut 
portion of the New York City area.
    On July 18, 1997 (62 FR 38856), EPA promulgated a new, standard for 
ozone based on an 8-hour average concentration (the ``1997 8-hour ozone 
NAAQS''). EPA designated and classified most areas of the country under 
the eight-hour ozone NAAQS in an April 30, 2004 final rule. See 69 FR 
23858. EPA designated Greater Connecticut as nonattainment for the 1997 
8-hour ozone NAAQS, and at the time of designation the area did not 
meet the one-hour ozone standard. Again, the entire state was 
designated nonattainment for the 8-hour NAAQS, and divided into two 
nonattainment areas, with the same names as the one-hour areas, but 
with slightly different boundaries than the two one-hour areas. See 40 
CFR 81.307.
    On April 30, 2004, EPA issued a final rule (69 FR 23951) entitled 
``Final Rule To Implement the 8-Hour Ozone National Ambient Air Quality 
Standard--Phase 1,'' referred to as the Phase 1 Rule. Among other 
matters, this rule revoked the one-hour ozone NAAQS in most areas of 
the country, effective June 15, 2005. See 40 CFR 50.9(b); 69 FR at 
23996; and 70 FR 44470. The Phase 1 Rule also set forth how anti-
backsliding principles will ensure continued progress toward attainment 
of the eight-hour ozone NAAQS by identifying which one-hour 
requirements remain applicable in an area after revocation of the one-
hour ozone NAAQS. Although, EPA revoked the one-hour ozone standard 
(effective June 15, 2005), eight-hour ozone nonattainment areas remain 
subject to certain one-hour, anti-backsliding requirements based on 
their one-hour ozone classification. Initially, in our rules to address 
the transition from the one-hour to the eight-hour ozone standard, EPA 
did not include one-hour contingency measures among the measures 
retained as one-hour ozone anti-backsliding requirements.\1\ However, 
on December 23, 2006, the United States Court of Appeals for the 
District of Columbia Circuit determined that EPA should not have 
excluded these requirements (and certain others not relevant here) from 
its anti-backsliding requirements. See South Coast Air Quality 
Management District v. EPA, 472 F.3d 882 (DC Cir. 2006), rehearing 
denied 489 F.3d 1245 (clarifying that the vacatur was limited to the 
issues on which the court granted the petitions for review. Thus, the 
Court vacated the provisions that excluded these requirements. As a 
result, States must continue to meet the obligations for one-hour ozone 
NAAQS contingency measures and, EPA has issued a proposed rule, that 
would remove the vacated provisions of 40 CFR 51.905(e), and addresses 
contingency measures for failure to attain, or make reasonable further 
progress toward attainment, for the one-hour standard. See 74 FR 2936, 
January 16, 2009 (proposed rule); and 74 FR 7027, February 12, 2009 
(notice of public hearing and extension of comment period).
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    \1\ Final Rule to Implement the 8-Hour Ozone National Ambient 
Air Quality Standard--Phase 1, 69 FR 23951 (April 30, 2004).
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B. Basis and Effect of Proposed Determinations

    After revocation of the one-hour ozone standard, EPA must continue 
to provide a mechanism to give effect to the one-hour anti-backsliding 
requirements. See SCAQMD v. EPA, 47 F.3d 882, at 903. In keeping with 
this responsibility with respect to specific one-hour anti-backsliding 
measures, such as contingency measures, EPA proposes to determine that 
Greater Connecticut failed to attain the one-hour ozone standard by its 
applicable attainment date. Consistent with 40 CFR 51.905(e)(2), and 
the South Coast decision, upon revocation of the one-hour ozone NAAQS 
for an area, EPA is no longer obligated to determine whether an area 
has attained the one-hour NAAQS, except insofar as it relates to 
effectuating the anti-backsliding requirements that are specifically 
retained. EPA's determination here is linked solely to required, one-
hour, anti-backsliding, contingency measures. A final determination of 
failure to attain will not result in reclassification of the area under 
the revoked one-hour standard, nor is EPA identifying or determining 
any new one-hour reclassification for the area. EPA is no longer 
required to reclassify an area to a higher classification for the one-
hour ozone NAAQS based upon a determination that the area failed to 
attain that NAAQS by its attainment date. See 40 CFR 
51.905(e)(2)(i)(B). Thus, even if we finalize our proposed 
determination that the area failed to attain the one-hour ozone NAAQS 
by its attainment deadline, the area will not be reclassified to a 
higher classification. Moreover, EPA has previously approved the 
attainment demonstration and Reasonable Further Progress (ROP) plans 
for this area, and in doing so noted that although there were no state 
implementation plan contingency measure reductions applicable to the 
Greater Connecticut area for failure to attain, there were federal 
measures the state had not accounted for in its attainment 
demonstration that provided more reductions than necessary to serve the 
purpose of contingency measures for this area. See 66 FR 634, January 
3, 2001. In addition, EPA is proposing to determine that the Greater 
Connecticut area has attained the one-hour ozone standard since 2008. 
In this context, even if EPA's proposed determination that the area did 
not attain the standard in 2007 deadline is finalized, it will not 
trigger any additional obligations for the area under the one-hour 
ozone standard. Under EPA's ``Clean Data Policy'' interpretation, which 
was first

[[Page 72379]]

articulated for the one-hour standard and then codified for the 8-hour 
ozone standard (40 CFR 51.918),\2\ a determination of attainment 
suspends obligations for attainment-related requirements for that 
standard, including contingency measures. See, for example, 
determination of one-hour ozone attainment for Baton Rouge, 75 FR 6570 
(February 10, 2010).
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    \2\ The U.S. Court of Appeals for the District of Columbia 
Circuit upheld the provisions of 40 CFR 51.918, which codified the 
Clean Data Policy. Previously Courts of Appeals for several other 
Circuits upheld the Clean Data Policy under the one-hour standard. 
See NRDC v. EPA, 571 F.3d 1245 (DC Cir. 2009); Sierra Club v. EPA, 
99 F.3d 1551 (10th Cir. 1996); Sierra Club v. EPA, 375 F.3d 537 (7th 
Cir. 2004) and Our Children's EarthFoundation v. EPA, No. 04-73032 
(9th Cir. June 28, 2005) (memorandum opinion).
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III. What is EPA's analysis of data for purposes of determining 
attainment of the one-hour ozone standard?

A. How does EPA compute whether an area meets the one-hour ozone 
standard?

    Although the one-hour ozone NAAQS as promulgated in 40 CFR 50.9 
includes no discussion of specific data handling conventions, EPA's 
publicly articulated position and the approach long since universally 
adopted by the air quality management community is that the 
interpretation of the one-hour ozone standard requires rounding ambient 
air quality data consistent with the stated level of the standard, 
which is 0.12 parts per million (ppm). 40 CFR 50.9(a) states that: 
``The level of the national one-hour primary and secondary ambient air 
quality standards for ozone * * * is 0.12 parts per million. * * * The 
standard is attained when the expected number of days per calendar year 
with maximum hourly average concentrations of 0.12 parts per million * 
* * is equal to or less than 1, as determined by appendix H to this 
part.'' Thus, compliance with the NAAQS is based on comparison of air 
quality concentrations with the standard and on how many days that 
standard has been exceeded, adjusted for the number of missing days.
    For comparison with the NAAQS, EPA has clearly communicated the 
data handling conventions for the one-hour ozone NAAQS in guidance 
documents. As early as 1979, EPA issued guidance stating that the level 
of our NAAQS dictates the number of significant figures to be used in 
determining whether the standard was exceeded. The stated level of the 
standard is taken as defining the number of significant figures to be 
used in comparisons with the standard. For example, a standard level of 
0.12 ppm means that measurements are to be rounded to two decimal 
places (0.005 rounds up), and, therefore, 0.125 ppm is the smallest 
concentration value in excess of the level of the standard. See 
``Guideline for the Interpretation of Ozone Air Quality Standards,'' 
EPA-450/4-79-003, OAQPS No. 1.2-108, January 1979. EPA has consistently 
applied the rounding convention in this 1979 guideline. See 68 FR 
19111, April 17, 2003, 68 FR 62043, October 31, 2003, and 69 FR 21719, 
April 22, 2004. Then, EPA determines attainment status under the one-
hour ozone NAAQS on the basis of the annual average number of expected 
exceedances of the NAAQS over a three-year period. See 60 FR 3349, 
January 17, 1995 and also the ``General Preamble for the Implementation 
of Title I of the Clean Air Act Amendments of 1990,'' at 57 FR 13506 
April 16, 1992 (``General Preamble''). EPA's determination is based 
upon data that have been collected and quality-assured in accordance 
with 40 CFR 58, and recorded in EPA's Air Quality System (AQS) 
database. To account for missing data, the procedures found in appendix 
H to 40 CFR part 50 are used to adjust the actual number of monitored 
exceedances of the standard to yield the annual number of expected 
exceedances (``expected exceedance days'') at an air quality monitoring 
site. We determine if an area meets the one-hour ozone NAAQS by 
calculating, at each monitor, the average expected number of days over 
the standard per year (i.e., ``average number of expected exceedance 
days'') during the applicable 3-year period. See the General Preamble, 
57 FR 13498, April 16, 1992. The term ``exceedance'' is used throughout 
this document to describe a daily maximum ozone measurement that is 
equal to or exceeds 0.125 ppm which is the level of the standard after 
rounding. An area violates the ozone standard if, over a consecutive 3-
year period, more than 3 days of expected exceedances occur at the same 
monitor. For more information please refer to 40 CFR 50.9, ``National 
one-hour primary and secondary ambient air quality standards for 
ozone'' and ``Interpretation of the one-hour Primary and Secondary 
National Ambient Air Quality Standards for Ozone'' (40 CFR part 50, 
appendix H).

B. EPA's Analysis of the One-Hour Ozone Data for the Greater 
Connecticut Area

    The following tables show one-hour ozone data for the Greater 
Connecticut area for each of the three-year periods 2005-2007 (Table 
1), 2006-2008 (Table 2), 2007-2009 (Table 3), and 2008-2010 (Table 4). 
In short, if the three-year average expected exceedances rate, shown in 
the far right column, is less than or equal to 1.0, the site meets the 
one-hour ozone NAAQS. If all sites in the area meet the one-hour ozone 
standard, then the area met the one-hour NAAQS during that time period.

  Table 1--Average Expected Exceedance Rate for the One-Hour Ozone Standard in the Greater Connecticut Area for
                                                    2005-2007
----------------------------------------------------------------------------------------------------------------
                                                                                                      3-year
                                                                      Actual         Adjusted         average
          EPA AQS ID                  Site             Year         exceedance      exceedance       expected
                                                                     days over       days for       exceedance
                                                                     0.124 ppm     missing data        rate
----------------------------------------------------------------------------------------------------------------
090050006.....................  Cornwall........            2005               1             1.0             0.7
                                                            2006               0             0.0  ..............
                                                            2007               1             1.0  ..............
090031003.....................  East Hartford...            2005               3             3.1             2.0
                                                            2006               1             1.0  ..............
                                                            2007               2             2.0  ..............
090110008.....................  Groton..........            2005               0             0.0             0.0
                                                            2006               0             0.0  ..............
                                                            2007               0             0.0  ..............
090110124.....................  Groton \3\......            2005  ..............  ..............             0.0
                                                            2006  ..............  ..............  ..............

[[Page 72380]]

 
                                                            2007               0             0.0  ..............
090131001.....................  Stafford........            2005               1             1.0             1.0
                                                            2006               1             1.0  ..............
                                                            2007               1             1.0  ..............
090070007.....................  Middletown......            2005               3             3.0             1.7
                                                            2006               1             1.0  ..............
                                                            2007               1             1.0  ..............
090090027.....................  New Haven.......            2005               1             1.0             0.7
                                                            2006               0             0.0  ..............
                                                            2007               1             1.0  ..............
090093002.....................  Madison.........            2005               3             3.1             1.4
                                                            2006               1             1.0  ..............
                                                            2007               0             0.0  ..............
----------------------------------------------------------------------------------------------------------------

     
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    \3\ Site moved in 2007. Ozone was monitored at both locations in 
2007, and the data collected are comparable.

  Table 2--Average Expected Exceedance Rate for the One-Hour Ozone Standard in the Greater Connecticut Area for
                                                    2006-2008
----------------------------------------------------------------------------------------------------------------
                                                                                                      3-year
                                                                      Actual         Adjusted         average
          EPA AQS ID                  Site             Year         exceedance      exceedance       expected
                                                                     days over       days for       exceedance
                                                                     0.124 ppm     missing data        rate
----------------------------------------------------------------------------------------------------------------
090050006.....................  Cornwall........            2006               0             0.0             0.3
                                                            2007               1             1.0  ..............
                                                            2008               0             0.0  ..............
090031003.....................  East Hartford...            2006               1             1.0             1.0
                                                            2007               2             2.0  ..............
                                                            2008               0             0.0  ..............
090110124.....................  Groton \4\......            2006               0             0.0             0.0
                                                            2007               0             0.0  ..............
                                                            2008               0             0.0  ..............
090131001.....................  Stafford........            2006               1             1.0             1.0
                                                            2007               1             1.0  ..............
                                                            2008               1             1.0  ..............
090070007.....................  Middletown......            2006               1             1.0             1.0
                                                            2007               1             1.0  ..............
                                                            2008               1             1.0  ..............
090090027.....................  New Haven.......            2006               0             0.0             0.3
                                                            2007               1             1.0  ..............
                                                            2008               0             0.0  ..............
090093002.....................  Madison.........            2006               1             1.0             0.7
                                                            2007               0             0.0  ..............
                                                            2008               1             1.0  ..............
----------------------------------------------------------------------------------------------------------------

     
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    \4\ AQS Number 090110008 before 2007.

  Table 3--Average Expected Exceedance Rate for the One-Hour Ozone Standard in the Greater Connecticut Area for
                                                    2007-2009
----------------------------------------------------------------------------------------------------------------
                                                                                                      3-year
                                                                      Actual         Adjusted         average
          EPA AQS ID                  Site             Year         exceedance      exceedance       expected
                                                                     days over       days for       exceedance
                                                                     0.124 ppm     missing data        rate
----------------------------------------------------------------------------------------------------------------
090050006.....................  Cornwall........            2007               1             1.0             0.3

[[Page 72381]]

 
                                                            2008               0             0.0  ..............
                                                            2009               0             0.0  ..............
090031003.....................  East Hartford...            2007               2             2.0             0.7
                                                            2008               0             0.0  ..............
                                                            2009               0             0.0  ..............
090110124.....................  Groton..........            2007               0             0.0             0.0
                                                            2008               0             0.0  ..............
                                                            2009               0             0.0  ..............
090131001.....................  Stafford........            2007               1             1.0             0.7
                                                            2008               1             1.0  ..............
                                                            2009               0             0.0  ..............
090070007.....................  Middletown......            2007               1             1.0             0.7
                                                            2008               1             1.0  ..............
                                                            2009               0             0.0  ..............
090090027.....................  New Haven.......            2007               1             1.0             0.3
                                                            2008               0             0.0  ..............
                                                            2009               0             0.0  ..............
090093002.....................  Madison.........            2007               0             0.0             0.3
                                                            2008               1             1.0  ..............
                                                            2009               0             0.0  ..............
----------------------------------------------------------------------------------------------------------------

  Table 4--Average Expected Exceedance Rate for the One-Hour Ozone Standard in the Greater Connecticut Area for
                                                    2008-2010
----------------------------------------------------------------------------------------------------------------
                                                                                                      3-year
                                                                      Actual         Adjusted         average
          EPA AQS ID                  Site             Year         exceedance      exceedance       expected
                                                                     days over       days for       exceedance
                                                                     0.124 ppm     missing data        rate
----------------------------------------------------------------------------------------------------------------
090050006.....................  Cornwall........            2008               0             0.0             0.0
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
090031003.....................  East Hartford...            2008               0             0.0             0.0
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
090110124.....................  Groton..........            2008               0             0.0             0.0
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
090131001.....................  Stafford........            2008               1             1.0             0.3
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
090070007.....................  Middletown......            2008               1             1.0             0.3
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
090090027.....................  New Haven.......            2008               0             0.0             0.0
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
090093002.....................  Madison.........            2008               1             1.0             0.3
                                                            2009               0             0.0  ..............
                                                            2010               0             0.0  ..............
----------------------------------------------------------------------------------------------------------------

    EPA has reviewed and evaluated these data in order to make two 
separate proposed determinations. First, EPA addresses whether the 
Greater Connecticut area attained the one-hour ozone standard by the 
applicable one-hour attainment date. As shown in Table 1, the Greater 
Connecticut one-hour ozone nonattainment area did not meet its 
attainment deadline of November 15, 2007, since three ozone monitors 
had expected exceedances rates above 1.0. In addition, the East 
Hartford ozone monitor recorded two exceedances of the now revoked one-
hour ozone standard in 2007. Two exceedances at one monitor prevented 
Connecticut from requesting a one-year extension of the attainment date 
for the Greater Connecticut area. See CAA Section 181(a)(5).
    Tables 2, 3 and 4, however, show the area subsequently met the one-
hour ozone standard based on 2006-2008 ozone data (see Table 2) and 
continues to meet the one-hour standard based on complete, quality-
assured data for subsequent time periods (see Tables 3 and 4). 
Preliminary ozone data available for 2011 also show that currently the 
area continues in attainment of the one-hour ozone standard. Thus, EPA 
is

[[Page 72382]]

proposing to determine that based on the most recent three years of 
complete quality-assured ozone monitoring data, the Greater Connecticut 
area is currently attaining the NAAQS.

IV. Proposed Determinations

    For the reasons set forth in this notice, EPA is proposing to 
determine that the Greater Connecticut one-hour ozone nonattainment 
area did not meet its applicable one-hour ozone attainment date of 
November 15, 2007, based on 2005-2007 quality-assured ozone monitoring 
data.\5\ Separate from and independent of this proposed determination, 
EPA is also proposing to determine that the Greater Connecticut one-
hour ozone nonattainment area is currently attaining the one-hour ozone 
standard, based on the most recent three years (2008-2010) of complete, 
quality-assured ozone monitoring data at all monitoring sites in the 
area. EPA's review of the data shows that the area began attaining the 
one-hour ozone standard in the 2006-2008 period, and has continued 
through 2007-2009 and 2008-2010. Preliminary data available for 2011 
indicate that the area continues to attain the one-hour NAAQS.
---------------------------------------------------------------------------

    \5\ For the reasons set forth above, a final determination that 
the Greater Connecticut one-hour ozone nonattainment area did not 
meet its applicable one-hour ozone attainment deadline will not 
result in reclassification of the area for the one-hour standard, 
nor in any additional air quality obligations for the area.
---------------------------------------------------------------------------

    EPA is soliciting public comments on the issues discussed in this 
notice or on other relevant matters. These comments will be considered 
before taking final action. Interested parties may participate in the 
Federal rulemaking procedure by submitting written comments to the EPA 
New England Regional Office listed in the ADDRESSES section of this 
Federal Register.

V. Statutory and Executive Order Reviews

    This action proposes to make determinations of attainment based on 
monitored air quality data and does not impose additional requirements 
beyond those imposed by state law. For that reason, these proposed 
actions:
     Are not ``significant regulatory actions'' subject to 
review by the Office of Management and Budget under Executive Order 
12866 (58 FR 51735, October 4, 1993);
     Do not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Are certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Do not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Do not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Are not economically significant regulatory actions based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     Are not significant regulatory actions subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Are not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the Clean Air Act; and
     Do not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, these actions do not have Tribal implications as 
specified by Executive Order 13175 (65 FR 67249, November 9, 2000), 
because the SIP is not approved to apply in Indian country located in 
the state, and EPA notes that it will not impose substantial direct 
costs on Tribal governments or preempt Tribal law.

List of Subjects in 40 CFR Part 52

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

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

    Dated: November 14, 2011.
H. Curtis Spalding,
Regional Administrator, EPA New England.
[FR Doc. 2011-30254 Filed 11-22-11; 8:45 am]
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