[Federal Register Volume 70, Number 183 (Thursday, September 22, 2005)]
[Rules and Regulations]
[Pages 55545-55550]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-18957]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[R05-OAR-2005-IL-0003; FRL-7973-2]


Designation of Areas for Air Quality Planning Purposes; Illinois; 
Lake Calumet PM-10 Redesignation and Maintenance Plan

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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SUMMARY: EPA is approving the State of Illinois' request to redesignate 
to attainment the Lake Calumet (Southeast Chicago) area currently 
designated as nonattainment of the National Ambient Air Quality 
Standard (NAAQS) for particulate matter with an aerodynamic diameter 
less than or equal to a nominal 10 micrometers (PM-10). We are also 
approving the Lake Calumet maintenance plan, submitted by the Illinois 
Environmental Protection Agency (IEPA) on August 2, 2005, and as 
supplemented on September 8, 2005, as a revision to the PM-10 State 
Implementation Plan (SIP) for this area.

DATES: This ``direct final'' rule is effective on November 21, 2005, 
unless EPA receives adverse written comments by October 24, 2005. If 
EPA receives adverse comment, it will publish a timely withdrawal of 
the rule in the Federal Register and inform the public that the rule 
will not take effect.

ADDRESSES: Submit comments, identified by Regional Material in EDocket 
(RME) ID No. R05-OAR-2005-IL-0003, by one of the following methods:
    Federal eRulemaking Portal: http://www.regulations.gov. Follow the 
on-line instructions for submitting comments.
    Agency Web site: http://docket.epa.gov/rmepub/. Regional RME, EPA's 
electronic public docket and comments system, is EPA's preferred method 
for receiving comments. Once in the system, select ``quick search,'' 
then key in the appropriate RME Docket identification number. Follow 
the on-line instructions for submitting comments.
    E-mail: [email protected].
    Fax: (312)886-5824.
    Mail: You may send written comments to: John M. Mooney, Chief, 
Criteria Pollutant Section, (AR-18J), U.S. Environmental Protection 
Agency, 77 West Jackson Boulevard, Chicago, Illinois 60604.
    Hand delivery: Deliver your comments to: John M. Mooney, Chief, 
Criteria Pollutant Section, (AR-18J), U.S. Environmental Protection 
Agency, Region 5, 77 West Jackson Boulevard, 18th floor, Chicago, 
Illinois 60604.
    Such deliveries are only accepted during the Regional Office's 
normal hours of operation. The Regional Office's official hours of 
business are

[[Page 55546]]

Monday through Friday, 8:30 a.m. to 4:30 p.m. excluding Federal 
holidays.
    Instructions: Direct your comments to RME ID No. R05-OAR-2005-IL-
0003. EPA's policy is that all comments received will be included in 
the public docket without change, including any personal information 
provided, unless the comment includes information claimed to be 
Confidential Business Information (CBI) or other information whose 
disclosure is restricted by statute. Do not submit information that you 
consider to be CBI or otherwise protected through RME, regulations.gov, 
or e-mail. The EPA RME Web site and the Federal regulations.gov Web 
site are ``anonymous access'' systems, which means EPA will not know 
your identity or contact information unless you provide it in the body 
of your comment. If you send an e-mail comment directly to EPA without 
going through RME or regulations.gov, your e-mail address will be 
automatically captured and included as part of the comment that is 
placed in the public docket and made available on the Internet. If you 
submit an electronic comment, EPA recommends that you include your name 
and other contact information in the body of your comment and with any 
disk or CD-ROM you submit. If EPA cannot read your comment due to 
technical difficulties and cannot contact you for clarification, EPA 
may not be able to consider your comment. Electronic files should avoid 
the use of special characters, any form of encryption, and be free of 
any defects or viruses. For additional instructions on submitting 
comments, go to Section I of the SUPPLEMENTARY INFORMATION section of 
the related proposed rule which is published in the Proposed Rules 
section of this Federal Register.
    Docket: All documents in the electronic docket are listed in the 
RME index at http://docket.epa.gov/rmepub/. Although listed in the 
index, some information is not publicly available, i.e., CBI or other 
information whose disclosure is restricted by statute. Publicly 
available docket materials are available either electronically in RME 
or in hard copy at Environmental Protection Agency, Region 5, Air and 
Radiation Division, 77 West Jackson Boulevard, Chicago, Illinois 60604. 
We recommend that you telephone Christos Panos, Environmental Engineer, 
at (312) 353-8328 before visiting the Region 5 office. This Facility is 
open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding 
legal holidays.

FOR FURTHER INFORMATION CONTACT: Christos Panos, Environmental 
Engineer, Criteria Pollutant Section, Air Programs Branch (AR-18J), 
U.S. Environmental Protection Agency, Region 5, 77 West Jackson 
Boulevard, Chicago, Illinois 60604, (312) 353-8328. 
[email protected].

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean EPA. This supplemental information 
section is arranged as follows:

I. What Action Is EPA Taking?
II. What Is the Background for this Action?
III. Why Was this SIP Revision Submitted?
IV. What Requirements Must Be Met for Approval of a Redesignation, 
and How Did the State Meet Them?
    A. Attainment of the PM-10 NAAQS
    B. State Implementation Plan Approval
    C. Improvement in Air Quality Due to Permanent and Enforceable 
Measures
    D. Applicable Requirements of Section 110 and Part D of the Act
    1. Section 110 Requirements.
    2. Part D Requirements.
    E. Fully Approved Maintenance Plan Under Section 175A of the Act
    1. Attainment Inventory.
    2. Maintenance Demonstration and Verification of Continued 
Attainment.
    3. Monitoring Network.
    4. Contingency Plan.
V. Rulemaking Action.
VI. Statutory and Executive Order Reviews

I. What Action Is EPA Taking?

    We are approving the State of Illinois' request to redesignate the 
Lake Calumet PM-10 nonattainment area to attainment of the PM-10 NAAQS 
that was submitted on August 2, 2005, and as supplemented on September 
8, 2005. We are also approving the maintenance plan for this area into 
the Illinois SIP.

II. What Is the Background for this Action?

    On July 1, 1987 (52 FR 24634), EPA revised the NAAQS for 
particulate matter with the PM-10 indicator. (See 40 CFR 50.6). The 24-
hour primary PM-10 standard is 150 micrograms per cubic meter ([mu]g/
m3), with no more than one expected exceedance per year. The annual 
primary PM-10 standard is 50 [mu]g/m3, expected annual arithmetic mean 
averaged over three years. The secondary PM-10 standards are identical 
to the primary standards.
    Under section 107(d)(4)(B) of the Clean Air Act (Act), as amended 
on November 15, 1990, certain areas were designated nonattainment for 
PM-10 and were classified as ``moderate''. These initial areas included 
the Lake Calumet, Illinois, PM-10 nonattainment area.
    On July 18, 1997 (62 FR 38652), EPA added a fine particle NAAQS, 
for particulate matter less than 2.5 microns in aerodynamic diameter 
(PM2.5). EPA classified the Chicago metropolitan area, which includes 
the Lake Calumet area, as a PM2.5 nonattainment area on January 5, 
2005.

III. Why Was This SIP Revision Submitted?

    IEPA believes that the Lake Calumet PM-10 nonattainment area is 
eligible for redesignation because we have approved the PM-10 SIP for 
this area and monitoring data demonstrate that this area has been 
attaining the PM-10 NAAQS since 1993. Under a cover letter dated August 
2, 2005, and as supplemented on September 8, 2005, the State submitted 
a redesignation request for the Lake Calumet PM-10 nonattainment area. 
A public hearing was held on July 27, 2005. The State did not receive 
any adverse comments during the public hearing or the 30-day comment 
period. The redesignation request contains text describing how the 
statutory requirements were met and consists primarily of a maintenance 
plan and air quality monitoring data for the area.

IV. What Requirements Must Be Met for Approval of a Redesignation, and 
How Did the State Meet Them?

    Section 107(d)(3)(D) of the Act allows the Governor of a State to 
request the redesignation of an area from nonattainment to attainment. 
The criteria used to review redesignation requests are derived from the 
Act, the general preamble to Title I of the Clean Air Act Amendments of 
1990 (57 FR 13498), and a September 4, 1992 policy and guidance 
memorandum entitled ``Procedures for Processing Requests to Redesignate 
Areas to Attainment.'' An area can be redesignated to attainment if the 
following conditions are met:
    1. The area has attained the applicable NAAQS;
    2. The area has a fully approved SIP under section 110(k) of the 
Act;
    3. The air quality improvement must be permanent and enforceable;
    4. The area has met all relevant requirements under section 110 and 
Part D of the Act;
    5. The area must have a fully approved maintenance plan pursuant to 
section 175A of the Act.

A. Attainment of the PM-10 NAAQS

    A state must demonstrate that an area has attained the PM-10 NAAQS 
through submittal of ambient air quality data from an ambient air 
monitoring network representing peak PM-10 concentrations. The data, 
which must be quality assured and recorded in the Aerometric 
Information Retrieval System (AIRS), must show that the average annual 
number of expected

[[Page 55547]]

exceedances for the area is less than or equal to 1.0, pursuant to 40 
CFR section 50.6. The data must represent the most recent three 
consecutive years of complete ambient air quality monitoring data 
collected in accordance with EPA methodologies.
    The Cook County Department of Environmental Control currently 
operates two PM-10 monitoring sites in the Lake Calumet nonattainment 
area under agreement with IEPA. The State submitted ambient air quality 
data and supporting documentation from each monitoring site for the 
2001-2003 period demonstrating that the area has attained the PM-10 
NAAQS. This air quality data was quality assured and placed in AIRS. 
There were no exceedances of the 24-hour or annual PM-10 NAAQS recorded 
at these monitors during this time period. Therefore, the State has 
adequately demonstrated, through ambient air quality data, that the PM-
10 NAAQS has been attained in Lake Calumet, with 2003 as the attainment 
year.

B. State Implementation Plan Approval

    Those States containing initial moderate PM-10 nonattainment areas 
were required to submit by November 15, 1991 a SIP which implemented 
reasonably available control measures (RACM) by December 10, 1993 and 
demonstrated attainment of the PM-10 NAAQS by December 31, 1994. In 
order to be redesignated, the SIP for the area must be fully approved 
under section 110(k) of the Act, and must satisfy all requirements that 
apply to the area. Illinois submitted the required SIP revisions for 
the Lake Calumet PM-10 nonattainment area on May 15, 1992. Upon review 
of Illinois' submittal, we identified several concerns. Illinois 
submitted a letter on March 2, 1994, committing to satisfy all of these 
concerns within one year of final conditional approval. On May 25, 
1994, we proposed to conditionally approve the SIP (59 FR 26988). Final 
conditional approval was published on November 18, 1994 (59 FR 59653). 
Illinois made several submittals to correct the remaining deficiencies 
and meet all of the commitments of the conditional approval. EPA fully 
approved the Lake Calumet PM-10 nonattainment area SIP on July 14, 1999 
(64 FR 37847). With this approval, Illinois had fulfilled all Clean Air 
Act requirements for Part D plans for the Lake Calumet moderate PM-10 
nonattainment area.

C. Improvement in Air Quality Due to Permanent and Enforceable Measures

    The State must be able to reasonably attribute the improvement in 
air quality to permanent and enforceable emission reductions. In making 
this showing, the State must demonstrate that air quality improvements 
are the result of actual, enforceable emission reductions.
    The State provided a discussion of the PM-10 emission reductions in 
Lake Calumet for the years 1993-2003. PM-10 emissions dropped 
significantly in the area in 1994 as a result of the control measures 
included in the PM-10 SIP approved by EPA in 1999. The State has 
adequately demonstrated in its submittal that the improvement in air 
quality is due to permanent and enforceable emission reductions of over 
1500 tons per year of PM-10 in Lake Calumet as a result of implementing 
the federally enforceable control measures in the SIP.

D. Applicable Requirements of Section 110 and Part D of the Act

    To be redesignated to attainment, section 107(d)(3)(E) requires 
that an area must have met all applicable requirements of section 110 
and of part D of the Act. The EPA interprets this to mean that for a 
redesignation request to be approved, the State must have met all 
requirements that applied to the subject area prior to or at the time 
of a complete redesignation request.
    1. Section 110 Requirements. Section 110(a)(2) contains general 
requirements for nonattainment plans. For purposes of redesignation, 
the Illinois SIP was reviewed to ensure that all applicable 
requirements under the amended Act were satisfied. Title 40 CFR Part 
52, subpart O, further evidences that the Illinois SIP was approved 
under section 110 of the Act and, we have found that the SIP satisfies 
all Part D requirements.
    2. Part D Requirements. Before a PM-10 nonattainment area may be 
redesignated to attainment, the State must have fulfilled the 
applicable requirements of Part D. Subpart 1 of Part D establishes the 
general requirements applicable to all nonattainment areas and subpart 
4 of Part D establishes specific requirements applicable to PM-10 
nonattainment areas.
    The requirements of sections 172(c) and 189(a) regarding attainment 
of the PM-10 NAAQS, and the requirements of section 172(c) regarding 
reasonable further progress, imposition of RACM, the adoption of 
contingency measures, and the submission of an emission inventory have 
been satisfied through the 1999 approval of the Lake Calumet PM-10 SIP 
(64 FR 37847). The requirements of the Part D--New Source Review (NSR) 
permit program will be replaced by the Part C--Prevention of 
Significant Deterioration (PSD) program for major new sources of PM-10 
once the area has been redesignated. Because the PSD program was 
delegated to the State of Illinois on February 28, 1980, and amended on 
November 17, 1981, it will become fully effective immediately upon 
redesignation. However, because this area is included within the 
Chicago PM2.5 nonattainment area, the requirements of the 
Part D NSR permit program will also continue to apply to new or 
modified sources of particulate matter, with the exception that 
PM2.5 will now be the indicator for particulate matter 
rather than PM-10.

E. Fully Approved Maintenance Plan Under Section 175A of the Act

    Section 175A of the Act requires states that submit a redesignation 
request for a nonattainment area under section 107(d) to include a 
maintenance plan to ensure that the attainment of NAAQS for any 
pollutant is maintained. The plan must demonstrate continued attainment 
of the applicable NAAQS for at least ten years after the approval of a 
redesignation to attainment. Eight years after the redesignation, the 
State must submit a revised maintenance plan demonstrating attainment 
for the ten years following the initial ten year period. The basic 
components needed to ensure proper maintenance of the NAAQS are: 
Attainment inventory, maintenance demonstration, verification of 
continued attainment, commitment to maintain the ambient air monitoring 
network, and a contingency plan. EPA is approving the Lake Calumet 
maintenance plans as discussed below.
    1. Attainment Inventory. Appendix B of the state's submittal 
contains an inventory of the reported 2003 PM-10 emissions for 
industrial facilities located in the Lake Calumet nonattainment area.
    2. Maintenance Demonstration and Verification of Continued 
Attainment. The State of Illinois has adequately demonstrated 
attainment and maintenance of the PM-10 NAAQS through its commitment to 
maintain the existing control requirements for point sources and 
fugitive dust sources contained in the PM-10 SIP for this area. 
Illinois is required to submit to EPA any changes to its rules or 
emission limits applicable to PM-10 sources in Lake Calumet for 
approval as a revision to the SIP, and will include, where appropriate, 
a demonstration that the changes will not interfere with maintenance of 
the PM-10 NAAQS. Further, projected emission trends for the years 2002-
2014 from EPA's Nonroad emission model and EPA's Mobile 6.2 emission 
model both indicate that projected PM-10 emissions for both on-road and 
off-road mobile

[[Page 55548]]

sources will decrease significantly over the next ten year period. For 
off-road sources in Cook County, the modeling predicts a decrease of 
over 650 tons/year of PM-10 in 2014 from 2002 levels. For on-road 
sources in Cook County, the modeling predicts a decrease of over 60 
tons/year of PM-10 in 2014 from 2002 levels. The maintenance plan for 
this area also contains a commitment from the State to revise and 
submit a new maintenance plan within eight years of approval of this 
redesignation. In addition, Illinois will be required to develop and 
implement a plan to address PM2.5 that will further improve 
air quality for particulate matter in this area. Future emission 
reductions needed to attain the PM2.5 NAAQS will also help 
to ensure continued attainment of the PM-10 NAAQS in the Lake Calumet 
area.
    3. Monitoring Network. Once an area has been redesignated, the 
State must continue to operate an appropriate air quality monitoring 
network, in accordance with 40 CFR part 58, to verify the attainment 
status of the area. The maintenance plan should contain provisions for 
continued operation of air quality monitors that will provide such 
verification. In its submittal, the State commits to continue to 
operate and maintain the network of PM-10 monitoring stations to 
demonstrate ongoing compliance with the PM-10 NAAQS. IEPA will consult 
with EPA Region 5 staff prior to making any changes to the existing 
monitoring network should changes be necessary in the future.
    4. Contingency Plan. Section 175A of the Act also requires that a 
maintenance plan include contingency measures, as necessary, to 
promptly correct any violation of the NAAQS that occurs after 
redesignation of the area. These contingency measures are distinguished 
from those generally required for nonattainment areas under section 
172(c)(9). However, if an area has been able to attain the NAAQS 
without implementation of the Part D nonattainment SIP contingency 
measures, and the contingency plan includes a requirement that the 
State will implement all of the PM-10 control measures which were 
contained in the SIP before redesignation to attainment, then the State 
can carry over into the area's maintenance plan the Part D SIP measures 
not previously implemented.
    IEPA will rely on ambient air monitoring data in the Lake Calumet 
area to track compliance with the PM-10 NAAQS and to determine the need 
to implement contingency measures. In the event that an exceedance of 
the PM-10 NAAQS occurs, the State will expeditiously investigate and 
determine the source(s) that caused the exceedance and/or violation, 
and enforce any SIP or permit limit that is violated. If there is a 
violation of the PM-10 NAAQS, and it is not due to an exceptional 
event, malfunction, or noncompliance with a permit condition or rule 
requirement, IEPA will determine additional control measures needed to 
assure future attainment of the PM-10 NAAQS. Control measures that can 
be implemented in a short time will be selected in order to be in place 
within eighteen (18) months from the time that IEPA determined that a 
violation occurred. Although the point sources listed in the inventory 
will be the primary focus, the possibility that the problem is 
attributable to new or previously unknown PM-10 sources will be 
considered. Illinois will submit to EPA an analysis to demonstrate that 
the proposed measures are adequate to return the area to attainment. 
Adoption of any additional control measures is subject to the necessary 
administrative and legal process. This process will include publication 
of notices, an opportunity for public hearing, and other measures 
required by Illinois law.

V. Rulemaking Action

    EPA is approving the State of Illinois' request to redesignate the 
Lake Calumet (Southeast Chicago) PM-10 nonattainment area to 
attainment. EPA is also approving Illinois' maintenance plan for the 
Lake Calumet nonattainment area as a SIP revision because it meets the 
requirements of section 175A of the Act. We are publishing this action 
without prior proposal because we view this as a noncontroversial 
amendment and anticipate no adverse comments. However, in the proposed 
rules section of this Federal Register publication, we are publishing a 
separate document that will serve as the proposal to approve the state 
plan if relevant adverse written comments are filed. This rule will be 
effective November 21, 2005 without further notice unless we receive 
relevant adverse written comments by October 24, 2005. If we receive 
such comments, we will withdraw this action before the effective date 
by publishing a subsequent document that will withdraw the final 
action. All public comments received will then be addressed in a 
subsequent final rule based on the proposed action. The EPA will not 
institute a second comment period. Any parties interested in commenting 
on this action should do so at this time. If we do not receive any 
comments, this action will be effective November 21, 2005.

VI. Statutory and Executive Order Reviews

Executive Order 12866; Regulatory Planning and Review

    Under Executive Order 12866 (58 FR 51735, October 4, 1993), this 
action is not a ``significant regulatory action'' and therefore is not 
subject to review by the Office of Management and Budget.

Executive Order 13211: Actions That Significantly Affect Energy Supply, 
Distribution, or Use

    Because it is not a ``significant regulatory action'' under 
Executive Order 12866 or a ``significant energy action,'' this action 
is also not subject to Executive Order 13211, ``Actions Concerning 
Regulations That Significantly Affect Energy Supply, Distribution, or 
Use'' (66 FR 28355, May 22, 2001).

Regulatory Flexibility Act

    This action merely approves state law as meeting Federal 
requirements and imposes no additional requirements beyond those 
imposed by state law. Accordingly, the Administrator certifies that 
this rule will not have a significant economic impact on a substantial 
number of small entities under the Regulatory Flexibility Act (5 U.S.C. 
601 et seq.).

Unfunded Mandates Reform Act

    Because this rule approves pre-existing requirements under state 
law and does not impose any additional enforceable duty beyond that 
required by state law, it does not contain any unfunded mandate or 
significantly or uniquely affect small governments, as described in the 
Unfunded Mandates Reform Act of 1995 (Pub. L. 104-4).

Executive Order 13175 Consultation and Coordination With Indian Tribal 
Governments

    This rule also does not have tribal implications because it will 
not have a substantial direct effect on one or more Indian tribes, on 
the relationship between the Federal Government and Indian tribes, or 
on the distribution of power and responsibilities between the Federal 
Government and Indian tribes, as specified by Executive Order 13175 (59 
FR 22951, November 9, 2000).

Executive Order 13132 Federalism

    This action also does not have Federalism implications because it 
does not have substantial direct effects on the states, on the 
relationship between the national government and the states, or on the 
distribution of power and responsibilities among the various

[[Page 55549]]

levels of government, as specified in Executive Order 13132 (64 FR 
43255, August 10, 1999). This action merely approves a state rule 
implementing a federal standard, and does not alter the relationship or 
the distribution of power and responsibilities established in the Clean 
Air Act.

Executive Order 13045 Protection of Children From Environmental Health 
and Safety Risks

    This rule also is not subject to Executive Order 13045 ``Protection 
of Children from Environmental Health Risks and Safety Risks'' (62 FR 
19885, April 23, 1997), because it is not economically significant.

National Technology Transfer Advancement Act

    In reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. In 
this context, in the absence of a prior existing requirement for the 
state to use voluntary consensus standards (VCS), EPA has no authority 
to disapprove a SIP submission for failure to use VCS. It would thus be 
inconsistent with applicable law for EPA, when it reviews a SIP 
submission, to use VCS in place of a SIP submission that otherwise 
satisfies the provisions of the Clean Air Act. Thus, the requirements 
of section 12(d) of the National Technology Transfer and Advancement 
Act of 1995 (15 U.S.C. 272 note) do not apply.

Paperwork Reduction Act

    This rule does not impose an information collection burden under 
the provisions of the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 
et seq.).

Congressional Review Act

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. EPA will submit a report containing this rule and other 
required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. A major rule cannot 
take effect until 60 days after it is published in the Federal 
Register. This action is not a ``major rule'' as defined by 5 U.S.C. 
804(2).
    Under section 307(b)(1) of the Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by November 21, 2005. Filing a 
petition for reconsideration by the Administrator of this final rule 
does not affect the finality of this rule for the purposes of judicial 
review nor does it extend the time within which a petition for judicial 
review may be filed, and shall not postpone the effectiveness of such 
rule or action. This action may not be challenged later in proceedings 
to enforce its requirements. (See section 307(b)(2).)

List of Subjects

40 CFR Part 52

    Environmental protection, Air pollution control, Intergovernmental 
relations, Particulate matter, Reporting and recordkeeping 
requirements.

40 CFR Part 81

    Air pollution control, National parks, Wilderness areas.

    Dated: September 13, 2005.
Bharat Mathur,
Acting Regional Administrator, Region 5.

0
40 CFR parts 52 and 81 are amended as follows:

PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS

Subpart O--Illinois

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

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


0
2. Section 52.725 is amended by adding a new paragraph (i) to read as 
follows:


Sec.  52.725  Control Strategy: Particulates.

* * * * *
    (i) Approval--On August 2, 2005, and as supplemented on September 
8, 2005, the State of Illinois submitted a request to redesignate the 
Lake Calumet (Southeast Chicago), Cook County particulate matter 
nonattainment area to attainment of the NAAQS for particulate matter 
with an aerodynamic diameter less than or equal to a nominal 10 
micrometers (PM-10). In its submittal, the State also requested that 
EPA approve the maintenance plan for the area into the Illinois PM SIP. 
The redesignation request and maintenance plan meet the redesignation 
requirements of the Clean Air Act.

PART 81--DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES

0
1. The authority citation for part 81 continues to read as follows:

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


0
2. In Sec.  81.314, the table entitled ``Illinois PM-10'' is amended by 
revising entry b. for Cook County to read as follows:


Sec.  81.314  Illinois.

* * * * *

                                                                     Illinois--PM-10
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                              Date                        Type                        Date                        Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Cook County:
 
                                                                      * * * * * * *
    b. The area bounded on the north by      11/21/05  Attainment.
     79th Street, on the west by
     Interstate 57 between Sibley
     Boulevard and Interstate 94 and by
     Interstate 94 between Interstate 57
     and 79th Street, on the south by
     Sibley Boulevard, and on the east
     by the Illinois/Indiana State line.
 
                                                                      * * * * * * *
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[FR Doc. 05-18957 Filed 9-21-05; 8:45 am]
BILLING CODE 6560-50-P