[Federal Register Volume 62, Number 206 (Friday, October 24, 1997)]
[Rules and Regulations]
[Pages 55336-55341]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-27855]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[CT-7202a; FRL-5902-2]
Approval and Promulgation of Implementation Plans; Connecticut
AGENCY: Environmental Protection Agency (EPA).
ACTION: Direct final rule.
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SUMMARY: The EPA today is approving State Implementation Plan (SIP)
revisions submitted by the State of Connecticut. These revisions
consist of 1990 base year ozone emission inventories, and establishment
of a Photochemical Assessment Monitoring System (PAMS) network.
The inventories were submitted by Connecticut to satisfy a Clean
Air Act (CAA) requirement that States containing ozone nonattainment
areas submit inventories of actual ozone precursor emissions in
accordance with guidance from the EPA. The ozone emission inventories
submitted by Connecticut are for the State's portion of the New York,
New Jersey, Connecticut severe area, and the greater Hartford serious
area. The PAMS SIP revision was submitted to satisfy the requirements
of the CAA and the PAMS regulations. The intended effect of this action
is to approve as a revision to the Connecticut SIP the state's 1990
base year ozone emission inventories, and to approve the PAMS network
into the State's SIP.
DATES: This action is effective on December 23, 1997 unless EPA
receives adverse or critical comments by November 24, 1997. If the
effective date is delayed, timely notice will be published in the
Federal Register.
ADDRESSES: Written comments on this action should be addressed to Susan
Studlien, Deputy Director, Office of Ecosystem Protection,
Environmental Protection Agency, Region I, JFK Federal Building,
Boston, Massachusetts, 02203. Copies of the documents relevant to this
action are available for public inspection during normal business hours
at the EPA Region I office, and at the Connecticut Department of
Environmental Protection, Bureau of Air Management, 79 Elm Street,
Hartford, CT 06106-1630. Persons interested in examining these
documents should make an appointment with the appropriate office at
least 24 hours before the visiting day.
FOR FURTHER INFORMATION CONTACT: Robert F. McConnell, Air Quality
Planning Group, EPA Region I, JFK Federal Building, Boston,
Massachusetts, 02203; telephone (617) 565-9266.
SUPPLEMENTARY INFORMATION: Connecticut submitted its 1990 base year
emission inventories of ozone precursors to the EPA on January 13,
1994, as a revision to the State's SIP. Revisions to the inventories
were received on February 3, 1994, and February 16, 1995. Connecticut
submitted a SIP revision establishing a PAMS network into the State's
overall ambient air quality monitoring network on March 2, 1995. This
notice is divided into four parts:
I. Background Information
II. Analysis of State Submission
III. Final Action
IV. Administrative Requirements
I. Background Information
1. Emission Inventory
Under the CAA as amended in 1990, States have the responsibility to
inventory emissions contributing to NAAQS nonattainment, to track these
emissions over time, and to ensure that control strategies are being
implemented
[[Page 55337]]
that reduce emissions and move areas towards attainment. The CAA
requires ozone nonattainment areas designated as moderate, serious,
severe, and extreme to submit a plan within three years of 1990 to
reduce volatile organic compound (VOC) emissions by 15 percent within
six years after 1990. The baseline level of emissions, from which the
15 percent reduction is calculated, is determined by adjusting the base
year inventory to exclude biogenic emissions, non-reactive VOC
emissions that do not form ozone, and to exclude certain emission
reductions not creditable towards the 15 percent. The 1990 base year
emissions inventory is the primary inventory from which the periodic
inventory, the Reasonable Further Progress (RFP) projection inventory,
and the modeling inventory are derived. Further information on these
inventories and their purpose can be found in the ``Emission Inventory
Requirements for Ozone State Implementation Plans,'' U.S. Environmental
Protection Agency, Office of Air Quality Planning and Standards,
Research Triangle Park, North Carolina, March 1991. The base year
inventory may also serve as part of statewide inventories for purposes
of regional modeling in transport areas. The base year inventory plays
an important role in modeling demonstrations for areas classified as
moderate and above.
The air quality planning requirements for marginal to extreme ozone
nonattainment areas are set out in section 182(a)-(e) of title I of the
CAA. The EPA has issued a General Preamble describing the EPA's
preliminary views on how the agency intends to review SIP revisions
submitted under title I of the Act, including requirements for the
preparation of the 1990 base year inventory (see 57 FR 13502 (April 16,
1992) and 57 FR 18070 (April 28, 1992)). In this action EPA will rely
on the General Preamble's interpretation of the CAA, and the reader
should refer to the General Preamble for a more detailed discussion of
the interpretations of title I advanced in today's rule and the
supporting rationale.
Those States containing ozone nonattainment areas classified as
marginal to extreme are required under section 182(a)(1) of the CAA to
submit a final, comprehensive, accurate, and current inventory of
actual ozone season, weekday emissions from all sources within 2 years
of enactment (November 15, 1992). This inventory is for calendar year
1990 and is denoted as the base year inventory. It includes both
anthropogenic and biogenic sources of volatile organic compound (VOC),
nitrogen oxides (NOX), and carbon monoxide (CO). The
inventory is to address actual VOC, NOX, and CO emissions
for the area during a peak ozone season, which is generally comprised
of the summer months. All stationary point and area sources, as well as
mobile sources within the nonattainment area, are to be included in the
compilation. Available guidance for preparing emission inventories is
provided in the General Preamble (57 FR 13498 (April 16, 1992)).
2. PAMS Network
On March 2, 1995, the Connecticut Department of Environmental
Protection (DEP) submitted to the EPA a SIP revision incorporating PAMS
into the ambient air quality monitoring network of State or Local Air
Monitoring Stations (SLAMS) and National Air Monitoring Stations
(NAMS). The State will establish and maintain PAMS as part of its
overall ambient air quality monitoring network.
Section 182(c)(1) of the CAA and the General Preamble (57 FR 13515)
require that the EPA promulgate rules for enhanced monitoring of ozone,
NOX, and VOCs no later than 18 months after the date of the
enactment of the Act. These rules will provide a mechanism for
obtaining more comprehensive and representative data on ozone air
pollution in areas designated nonattainment and classified as serious,
severe, or extreme.
The final PAMS rule was promulgated by the EPA on February 12, 1993
(58 FR 8452). Section 58.40(a) of the revised rule requires the State
to submit a PAMS network description, including a schedule for
implementation, to the Administrator within six months after
promulgation or by August 12, 1993. Further, Sec. 58.20(f) requires the
State to provide for a PAMS network within nine months after
promulgation of the final rule or by November 12, 1993.
On October 14, 1993, the Connecticut DEP submitted a draft PAMS
network plan. The EPA reviewed the submittal and informed the State it
was approvable and met the requirements of section 58.40(a) via a
letter dated July 21, 1994. On March 2, 1995, Connecticut submitted a
formal amendment to the SIP regarding PAMS Air Quality Monitoring. A
letter finding the submittal complete was sent to the State on April
24, 1995. Since network descriptions may change annually, they are not
part of the SIP as recommended by the document, ``Guideline for the
Implementation of the Ambient Air Monitoring Regulations, 40 CFR part
58'' (EPA-450/4-78-038, OAQPS, November 1979).
Ambient air quality monitoring network descriptions undergo annual
system reviews as required by 40 CFR section 58.20(d). The review
covers the SLAMS, National Air Monitoring Station (NAMS) and PAMS
networks. In addition, 40 CFR section 58.25 pertaining to SLAMS,
section 58.36 pertaining to NAMS, and section 58.46 pertaining to PAMS
each require that any changes to the network description as identified
during the annual review must be approved by EPA.
The Connecticut PAMS SIP revision is intended to meet the
requirements of section 182(c)(1) of the Act and to comply with the
PAMS regulations, codified at 40 CFR part 58. The Connecticut DEP held
a public hearing on the PAMS SIP revision on January 7, 1994.
II. Analysis of State Submission
1. Emission Inventory
A. Procedural Background
The Act requires States to observe certain procedural requirements
in developing emission inventory submissions to the EPA. Section
110(a)(2) of the Act provides that each emission inventory submitted by
a State must be adopted after reasonable notice and public hearing.
1 Final approval of the inventory will not occur until the
State revises the inventory to address public comments. Changes to the
inventory that impact the 15 percent reduction calculation and require
a revised control strategy will constitute a SIP revision. EPA created
a ``de minimis'' exception to the public hearing requirement for minor
changes. EPA defines ``de minimis'' for such purposes to be those in
which the 15 percent reduction calculation and the associated control
strategy or the maintenance plan showing, do not change. States will
aggregate all such ``de minimis'' changes together when making the
determination as to whether the change constitutes a SIP revision. The
State will need to make the change through the formal SIP revision
process, in conjunction with the change to the control measure or other
SIP programs. 2 Section 110(a)(2) of the Act similarly
[[Page 55338]]
provides that each revision to an implementation plan submitted by a
State under the Act must be adopted by such State after reasonable
notice and public hearing.
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\1\ Also Section 172(c)(7) of the Act requires that plan
provisions for nonattainment areas meet the applicable provisions of
section 110(a)(2).
\2\ Memorandum from John Calcagni, Director, Air Quality
Management Division, and William G. Laxton, Director, Technical
Support Division, to Regional Air Division Directors, Region I-X,
``Public Hearing Requirements for 1990 Base-Year Emission
Inventories for Ozone and Carbon Monoxide Nonattainment Areas,''
September 29, 1992.
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On January 13, 1994, Connecticut submitted to the EPA as a SIP
revision the 1990 base year inventories for its two ozone nonattainment
areas. Prior to the State's submittal of final inventories, the State
had submitted draft inventories to EPA for review during July, August,
and October 1992. EPA reviewed the draft inventories and sent comments
to the state by letter dated November 20, 1992. Revised inventories
were submitted to EPA in January and May of 1993 which addressed many
of EPA's comments. The State held a public hearing on the inventory on
July 20, 1993. EPA reviewed the May submittal and provided comments to
the State through the hearing process by letter dated August 30, 1993.
These comments included comments developed by an EPA contractor's
review of the Connecticut inventories. The contractor's comments are
summarized within a report dated April 16, 1993. Connecticut submitted
its final 1990 base year emission inventories as revisions to the
State's SIP on January 13, 1994. Additional revisions were submitted on
February 3, 1994, and February 16, 1995.
The EPA Region I Office has compared the final Connecticut
inventories with the deficiencies noted in the various comment letters
and concluded that the State has adequately addressed the issues
presented in the comment letters.
B. Emission Inventory Review
Section 110(k) of the CAA sets out provisions governing the EPA's
review of base year emission inventory submittals in order to determine
approval or disapproval under section 182(a)(1) (see 57 FR 13565-13566
(April 16, 1992)). The EPA is approving the Connecticut ozone base year
emission inventories based on the Level I, II, and III review findings.
This section outlines the review procedures performed to determine if
the base year emission inventories are acceptable or should be
disapproved.
The Level I and II review process is used to determine that all
components of the base year inventory are present. The review also
evaluates the level of supporting documentation provided by the State
and assesses whether the emissions were developed according to current
EPA guidance.
The Level III review process is outlined here and consists of 10
points that the inventory must include. For a base year emission
inventory to be acceptable it must pass all of the following acceptance
criteria:
1. An approved Inventory Preparation Plan (IPP) was provided and
the QA program contained in the IPP was performed and its
implementation documented.
2. Adequate documentation was provided that enabled the reviewer to
determine the emission estimation procedures and the data sources used
to develop the inventory.
3. The point source inventory must be complete.
4. Point source emissions must have been prepared or calculated
according to the current EPA guidance.
5. The area source inventory must be complete.
6. The area source emissions must have been prepared or calculated
according to the current EPA guidance.
7. Biogenic emissions must have been prepared according to current
EPA guidance or another approved technique.
8. The method (e.g., Highway Performance Modeling System or a
network transportation planning model) used to develop vehicle miles
travelled (VMT) estimates must follow EPA guidance, which is detailed
in the document, ``Procedures for Emission Inventory Preparation,
Volume IV: Mobile Sources,'' U.S. Environmental Protection Agency,
Office of Mobile Sources and Office of Air Quality Planning and
Standards, Ann Arbor, Michigan, and Research Triangle Park, North
Carolina, December 1992.
9. The MOBILE model (or EMFAC model for California only) was
correctly used to produce emission factors for each of the vehicle
classes.
10. Non-road mobile emissions were prepared according to current
EPA guidance for all of the source categories.
The base year emission inventory will be approved if it passes
Levels I, II, and III of the review process. Detailed Level I and II
review procedures can be found in ``Quality Review Guidelines for 1990
Base Year Emission Inventories,'' U.S. Environmental Protection Agency,
Office of Air Quality Planning and Standards, Research Triangle Park,
NC, July 27, 1992. Level III review procedures are specified in EPA
memoranda noted in the margin. 3
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\3\ Memorandum from J. David Mobley, Chief, Emissions Inventory
Branch, to Air Branch Chiefs, Region I-X, ``Final Emission Inventory
Level III Acceptance Criteria,'' October 7, 1992; and memorandum
from John S. Seitz, Director, Office of Air Quality Planning and
Standards, to Regional Air Division Directors, Region I-X,
``Emission Inventory Issues,'' June 24, 1993.
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The emission inventories prepared by Connecticut for its two,
serious ozone nonattainment areas meet each of Level III's ten
criteria. Documentation of the EPA's evaluation, including details of
the review procedure, is contained within the technical support
document prepared for the Connecticut 1990 base year inventory, which
is available to the public as part of the docket supporting this
action.
2. PAMS Network
The Connecticut PAMS SIP revision will provide the State with the
authority to establish and operate the PAMS sites, will secure State
funds for PAMS, and will provide the EPA with the authority to enforce
the implementation of PAMS, since its implementation is required by the
Act.
The criteria used to review the proposed SIP revision are derived
from the PAMS regulations, codified at 40 CFR Part 58, and are included
in ``Guideline for the Implementation of the Ambient Air Monitoring
Regulations, 40 CFR part 58'' (EPA-450/4-78-038, Office of Air Quality
Planning and Standards, November 1979), the September 2, 1993,
memorandum from G. T. Helms entitled, ``Final Boilerplate Language for
the PAMS SIP Submittal,'' the CAA, and the General Preamble.
The September 2, 1993, Helms memorandum stipulates that the PAMS
SIP, at a minimum, must:
1. Provide for monitoring of criteria pollutants, such as ozone and
nitrogen dioxide and non-criteria pollutants, such as nitrogen oxides,
speciated VOCs, including carbonyls, as well as meteorological
parameters;
2. Provide a copy of the approved (or proposed) PAMS network
description, including the phase-in schedule, for public inspection
during the public notice and/or comment period provided for in the SIP
revision or, alternatively, provide information to the public upon
request concerning the State's plans for implementing the rules;
3. Make reference to the fact that PAMS will become a part of the
State or local air monitoring stations (SLAMS) network;
4. Provide a statement that SLAMS will employ Federal reference
methods (FRM) or equivalent methods while most PAMS sampling will be
conducted using methods approved by the EPA.
The Connecticut PAMS SIP revision provides that the State will
implement PAMS as required in 40 CFR part 58, as amended February 12,
1993. The State will amend its SLAMS and its NAMS monitoring systems to
include the PAMS requirements. It will develop its PAMS network design
and establish monitoring sites pursuant to 40 CFR
[[Page 55339]]
part 58 in accordance with an approved network description and as
negotiated with the EPA through the 105 grant process on an annual
basis. The State has begun implementing its PAMS network as required in
40 CFR part 58.
The Connecticut PAMS SIP revision also includes a provision to meet
quality assurance requirements as contained in 40 CFR part 58, Appendix
A. The State's SIP revision also assures EPA that the PAMS monitors
will meet monitoring methodology requirements contained in 40 CFR part
58, Appendix C. Lastly, the State's SIP revision requires that the
Connecticut PAMS network will be phased in over a period of five years
as required in 40 CFR 58.44. The State's PAMS SIP submittal and the
EPA's technical support document are available for viewing at the EPA
Region I Office as outlined under the ADDRESSES section of this Federal
Register document. The Connecticut PAMS SIP submittal is also available
for viewing at the Connecticut State Office as outlined under the
ADDRESSES section of this Federal Register document.
III. Final Action
1. Emission Inventory
Connecticut has submitted complete inventories containing point,
area, biogenic, on-road mobile, and non-road mobile source data, and
accompanying documentation. Emissions from these sources are presented
in the following table:
VOC \4\
[Ozone Seasonal Emissions in Tons Per Day]
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Point On-road Non-road
NAA Area source source mobile mobile Biogenic Total
emissions emissions emissions emissions emissions
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NY-NJ-CT.......................... 59.42 8.67 43.83 20.95 54.41 187.28
Hartford.......................... 178.05 33.74 127.12 78.44 383.39 800.74
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\4\ Note that these VOC inventory numbers include emissions of perchloroethylene. EPA has determined that
perchloroethylene is photochemically non-reactive and does not significantly contribute to ozone production.
Therefore, these inventory numbers have been adjusted to remove emissions of this compound in the proposed
conditional approval of Connecticut's 15 percent plans published elsewhere in today's Federal Register.
NOX
[Ozone Seasonal Emissions in Tons Per Day]
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Point On-road Non-road
NAA Area source source mobile mobile Biogenic Total
emissions emissions emissions emissions emissions
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NY-NJ-CT.......................... 2.73 43.72 55.73 15.73 NA 117.91
Hartford.......................... 8.07 87.31 175.56 82.61 NA 353.55
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CO
[Ozone Seasonal Emissions in Tons Per Day]
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Point On-road Non-road
NAA Area source source mobile mobile Biogenic Total
emissions emissions emissions emissions emissions
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NY-NJ-CT......................... 3.51 13.09 356.87 165.52 NA 538.99
Hartford......................... 10.90 20.30 1,032.9 530.41 NA 1,594.51
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Connecticut has satisfied all of the EPA's requirements for
providing a comprehensive, accurate, and current inventory of actual
ozone precursor emissions in the Connecticut portion of the NY-NJ-CT
severe area and the Hartford serious ozone nonattainment area. The
inventories are complete and approvable according to the criteria set
out in the November 12, 1992 memorandum from J. David Mobley, Chief
Emission Inventory Branch, TSD to G. T. Helms, Chief Ozone/Carbon
Monoxide Programs Branch, AQMD. In today's final action, the EPA is
approving the SIP 1990 base year ozone emission inventories submitted
by Connecticut for the state's portion of the NY-NJ-CT severe area and
the Hartford serious nonattainment area as meeting the requirements of
section 182(a)(1) of the CAA.
2. PAMS Network
In today's action, the EPA is fully approving the revision to the
Connecticut ozone SIP for PAMS.
The EPA is publishing these actions without prior proposal because
the Agency views them as noncontroversial amendments and anticipates no
adverse comments. However, in a separate document in this Federal
Register publication, the EPA is proposing to approve these SIP
revisions and is soliciting public comment on them. This action will be
effective December 23, 1997 unless, by November 24, 1997, adverse or
critical comments are received.
If the EPA receives such comments, this action will be withdrawn
before the effective date by publishing a subsequent document that will
withdraw the final actions. All public comments received will be
addressed in a subsequent final rule based on this action serving as a
proposed rule. The EPA will not institute a second comment period on
this action. Any parties interested in commenting on this action should
do so at this time. If no such comments are received, the public is
advised that this action will be effective December 23, 1997.
Nothing in this action should be construed as permitting or
allowing or establishing a precedent for any future request for
revision to any SIP. Each request for revision to the SIP shall be
[[Page 55340]]
considered separately in light of specific technical, economic, and
environmental factors and in relation to relevant statutory and
regulatory requirements.
IV. Administrative Requirements
A. Executive Order 12866
This action has been classified as a Table 3 action for signature
by the Regional Administrator under the procedures published in the
Federal Register on January 19, 1989 (54 FR 2214-2225), as revised by a
July 10, 1995 memorandum from Mary Nichols, Assistant Administrator for
Air and Radiation. The Office of Management and Budget (OMB) has
exempted this regulatory action from E.O. 12866 review.
B. Regulatory Flexibility Act
Under the Regulatory Flexibility Act, 5 U.S.C. Sec. 600 et seq.,
EPA must prepare a regulatory flexibility analysis assessing the impact
of any proposed or final rule on small entities. 5 U.S.C. Secs. 603 and
604. Alternatively, EPA may certify that the rule will not have a
significant impact on a substantial number of small entities. Small
entities include small businesses, small not-for profit enterprises,
and government entities with jurisdiction over populations of less than
50,000.
SIP approvals under section 110 and subchapter I, part D of the
Clean Air Act do not create any new requirements but simply approve
requirements that the State is already imposing. Therefore, because the
Federal SIP approval does not impose any new requirements, the
Administrator certifies that it does not have a significant impact on
any small entities affected. Moreover, due to the nature of the
Federal-State relationship under the CAA, preparation of a flexibility
analysis would constitute Federal inquiry into the economic
reasonableness of state action. The Clean Air Act forbids EPA to base
its actions concerning SIPs on such grounds. Union Electric Co. v. U.S.
EPA, 427 U.S. 246, 255-66 (1976); 42 U.S.C. 7410(a)(2).
C. Unfunded Mandates
Under Section 202 of the Unfunded Mandates Reform Act of 1995
(``Unfunded Mandates Act''), signed into law on March 22, 1995, EPA
must prepare a budgetary impact statement to accompany any proposed or
final rule that includes a Federal mandate that may result in estimated
costs to State, local, or tribal governments in the aggregate; or to
the private sector, of $100 million or more. Under Section 205, EPA
must select the most cost-effective and least burdensome alternative
that achieves the objectives of the rule and is consistent with
statutory requirements. Section 203 requires EPA to establish a plan
for informing and advising any small governments that may be
significantly or uniquely impacted by the rule.
EPA has determined that the approval action promulgated does not
include a Federal mandate that may result in estimated costs of $100
million or more to either State, local, or tribal governments in the
aggregate, or to the private sector. This Federal action approves pre-
existing requirements under State or local law, and imposes no new
requirements. Accordingly, no additional costs to State, local, or
tribal governments, or to the private sector, result from this action.
D. Submission to Congress and the General Accounting Office
Under 5 U.S.C. 801(a)(1)(A) as added by the Small Business
Regulatory Enforcement Fairness Act of 1996, EPA submitted 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
General Accounting Office prior to publication of the rule in today's
Federal Register. This rule is not a ``major rule'' as defined by 5
U.S.C. 804(2).
E. Petitions for Judicial Review
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 December 23, 1997. 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).) EPA encourages
interested parties to comment in response to the proposed rule rather
than petition for judicial review, unless the objection arises after
the comment period allowed for in the proposal.
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Carbon monoxide,
Hydrocarbons, Incorporation by reference, Nitrogen dioxide, Ozone,
Reporting and recordkeeping requirements.
Note: Incorporation by reference of the State Implementation
Plan for the State of Connecticut was approved by the Director of
the Federal Register on July 1, 1982.
Dated: September 19, 1997.
John P. DeVillars,
Regional Administrator, Region I.
40 CFR Part 52 is amended as follows:
PART 52--[AMENDED]
1. The authority citation for part 52 continues to read as follows:
Authority: 42 U.S.C. 7401-7641q.
Subpart H--Connecticut
2. Section 52.370 is amended by adding paragraph (c)(74) to read as
follows:
* * * * *
Sec. 52. 370 Identification of plan.
(c) * * *
(74) A revision to the Connecticut SIP regarding ozone monitoring.
Connecticut will modify its SLAMS and its NAMS monitoring systems to
include a PAMS network design and establish monitoring sites.
Connecticut's SIP revision satisfies 40 CFR 58.20(f) PAMS requirements.
(i) Incorporation by reference.
(A) PAMS SIP Commitment Narrative, which incorporates PAMS into the
ambient air quality monitoring network of State or Local Air Monitoring
Stations (SLAMS) and National Air Monitoring Stations (NAMS).
(ii) Additional material.
(A) Letter from the Connecticut Department of Environmental
Protection dated March 2, 1995 submitting a revision to the Connecticut
State Implementation Plan.
3. Section 52.384 is added to read as follows:
Sec. 52.384 Emission inventories.
(a) The Governor's designee for the State of Connecticut submitted
the 1990 base year emission inventories for the Connecticut portion of
the New York-New Jersey-Connecticut severe ozone nonattainment area and
the Hartford serious ozone nonattainment area on January 13, 1994 as
revisions to the State's Implementation Plan (SIP). Revisions to the
inventories were submitted on February 3, 1994 and February 16, 1995.
The 1990 base year emission inventory requirement of section 182(a)(1)
of the Clean Air Act, as amended in 1990, has been satisfied for these
areas.
(b) The inventories are for the ozone precursors which are volatile
organic compounds, nitrogen oxides, and carbon monoxide. The
inventories
[[Page 55341]]
covers point, area, non-road mobile, on-road mobile, and biogenic
sources.
(c) Taken together, the Connecticut portion of the New York-New
Jersey-Connecticut severe nonattainment area and the Hartford serious
nonattainment area encompass the entire geographic area of the State.
[FR Doc. 97-27855 Filed 10-23-97; 8:45 am]
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