Approval and Promulgation of Implementation Plans; New Hampshire

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[NH-7157a-FRL-5906-8]

Approval and Promulgation of Implementation Plans; New Hampshire

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 New Hampshire. These revisions

consist of the 1990 base year ozone emission inventories, and

establishment of a Photochemical Assessment Monitoring System (PAMS)

network.

The inventories were submitted by the State 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 PAMS SIP revision was submitted to

satisfy the requirements of the CAA and the PAMS regulation. The PAMS

regulation required the State to provide for the establishment and

maintenance of an enhanced ambient air quality monitoring network in

the form of PAMS by November 12, 1993. The intended effect of this

action is to approve as a revision to the New Hampshire SIP the state's

1990 base year ozone emission inventories and PAMS network.

DATES: This action is effective on December 26, 1997 unless adverse or

critical comments are received by November 26, 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 New Hampshire Department of

Environmental Services, Air Resources Division, 64 North Main Street,

Caller Box 2033, Concord, NH 03302-2033. 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: New Hampshire submitted a SIP revision to

the EPA consisting of 1990 base year emission inventories of ozone

precursors on January 26, 1993. The State submitted a SIP revision

establishing a PAMS network into the State's overall ambient air

quality monitoring network on December 13, 1994. This notice is divided

into four parts:

I. Background Information

II. Analysis of State Submission

III. Final Action

IV. Administrative Requirements

I. Background

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 that reduce emissions and move areas towards attainment.

The CAAA requires ozone nonattainment areas designated as moderate,

serious, severe, and extreme to submit a plan within three years of

1990 to reduce 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 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 outside transport regions.

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]. Because the EPA is describing

its interpretations here only in broad terms, the reader should refer

to the General Preamble for a more detailed discussion of the

interpretations of title I advanced in today's proposal and the

supporting rationale.

Those States containing ozone nonattainment areas classified as

[[Page 55522]]

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). New Hampshire contains one marginal

and two ozone nonattainment areas, and therefore is subject to this

requirement. The 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).

Emission inventories are first reviewed under the completeness

criteria established under section 110(k)(1) of the CAAA (56 FR 42216,

August 26, 1991). According to section 110(k)(1)(C) if a submittal does

not meet the completeness criteria, `` the State shall be treated as

not having made the submission.'' Under sections 179(a)(1) and

110(c)(1), a finding by EPA that a submittal is incomplete is one of

the actions that initiates the sanctions and Federal Implementation

Plan (FIP) processes (see David Mobley memorandum, November 12,

1992).1

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\1\ Memorandum from J. David Mobley, Chief, Emission Inventory

Branch, to Air Branch Chiefs, Region I-X, ``Guidance on States''

Failure to Submit Ozone and CO SIP Inventories,'' November 12, 1992.

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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.2 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.3 Section

110(a)(2) of the Act similarly 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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\2\ Also Section 172(c)(7) of the Act requires that plan

provisions for nonattainment areas meet the applicable provisions of

section 110(a)(2).

\3\ 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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The inventory was submitted to the EPA as a SIP revision on January

26, 1993, by cover letter from the Governor's designee. New Hampshire

re-submitted a final inventory to the EPA on February 8, 1994. New

Hampshire submitted further revisions to the inventory on May 19, 1994,

June 13, 1994, January 19, 1995, and August 29, 1996. New Hampshire

held several public hearings on its 1990 base year emission

inventories, the last of which occurred on August 2, 1996.

The EPA Region I Office has compared the final New Hampshire

inventory with the deficiencies noted in the various comment letters

and concluded that the State has adequately addressed the issues raised

by the EPA.

2. PAMS Network

On December 13, 1994, the New Hampshire Department of Environmental

Services (DES) 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,

oxides of nitrogen (NOX), and volatile organic compounds

(VOC) 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 the establishment and maintenance of a PAMS

network within nine months after promulgation of the final rule or by

November 12, 1993.

On December 13, 1994, the New Hampshire DES submitted a proposed

PAMS network plan to the EPA that included a schedule for

implementation. This submittal was reviewed and approved on April 10,

1995 by the EPA and was judged to satisfy the requirements of

Sec. 58.40(a). 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''. However, the network description is negotiated and approved

during the annual review as required by 40 CFR Secs. 58.25 and 58.36,

respectively, and the revision to be codified at 40 CFR Sec. 58.46.

On April 19, 1994 and December 13, 1994, the New Hampshire DES

submitted the PAMS SIP revision to the EPA. The EPA sent the State a

letter on July 12, 1994 finding the submittal administratively

complete.

The New Hampshire PAMS SIP revision is intended to meet the

requirements of section 182(c)(1) of the Act and affect compliance with

the PAMS regulations, to be codified at 40 CFR part 58, as promulgated

on February 12, 1993. The New Hampshire DES held a public hearing on

the PAMS SIP revision on February 8, 1994.

II. Analysis of State Submission

1. Emission Inventory

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 New Hampshire ozone

base year emission inventory submitted to the EPA based on the Level I,

II, and III review findings. This section outlines the review

procedures performed to determine if the base year emission inventory

is acceptable or should be disapproved.

[[Page 55523]]

A. The Following Discussion Reviews the State Base Year SIP Inventory

Approval Requirements

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 the following document; ``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 a memorandum from David Mobley and G. T.

Helms to the Regions ``1990 O3/CO SIP Emission Inventory Level III

Acceptance Criteria'', October 7, 1992 4 and revised in a

memorandum from John Seitz to the Regional Air Directors dated June 24,

1993. 5

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\4\ 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.

\5\ 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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New Hampshire's base year emission inventories meet each of these

ten criteria. Documentation of the EPA's evaluation, including details

of the review procedure, is contained within the technical support

document prepared for the New Hampshire 1990 base year inventories,

which is available to the public as part of the docket supporting this

action.

2. PAMS Network

The New Hampshire PAMS SIP revision will provide the State with the

authority to establish and operate the PAMS sites, secure State funds

for PAMS and provide the EPA with the authority to enforce the

implementation of PAMS, since their 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, ``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 boilerplate memorandum stipulates that

the PAMS SIP, at a minimum, must: 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; 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; make reference to the fact that PAMS will

become a part of the State or local air monitoring stations (SLAMS)

network; and provide a statement that SLAMS will employ Federal

reference (FRM) or equivalent methods while most PAMS sampling will be

conducted using methods approved by the EPA which are not FRM or

equivalent.

The New Hampshire 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 National Air Monitoring

Stations (NAMS) monitoring systems to include the PAMS requirements. It

will develop its PAMS network design and establish monitoring sites

pursuant to 40 CFR 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 New Hampshire PAMS SIP revision also includes a provision to

meet quality assurance requirements as contained in 40 CFR Part 58,

Appendix A. The State also assures that the State's PAMS monitors will

meet monitoring methodology requirements contained in 40 CFR Part 58,

Appendix C. Lastly, the State assures that the New Hampshire PAMS

network will be phased in over a period of five years as required in

Sec. 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 State's PAMS SIP submittal is also available for viewing

at the New Hampshire State Office as outlined under the Addresses

section of this Federal Register document.

III. Final Action

1. Emission Inventory

New Hampshire 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:

[[Page 55524]]

VOC

[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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Por-Dov-Roc....................... 10.47 4.30 18.38 7.84 35.00 76.00

Bos-Law-Wor....................... 17.37 6.73 27.13 4.65 36.05 91.93

Manchester........................ 18.25 4.16 28.58 5.19 114.16 170.33

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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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Por-Dov-Roc....................... 2.71 23.12 18.96 1.93 NA 46.72

Bos-Law-Wor....................... 4.56 0.85 26.38 1.95 NA 33.73

Manchester........................ 4.83 73.43 33.70 2.37 NA 114.34

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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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Por-Dov-Roc....................... 1.34 1.72 146.75 29.64 NA 179.44

Bos-Law-Wor....................... 2.25 0.09 206.44 35.85 NA 244.63

Manchester........................ 2.39 1.63 252.51 44.81 NA 301.35

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New Hampshire has satisfied all of the EPA's requirements for

providing a comprehensive, accurate, and current inventory of actual

ozone precursor emissions in the three nonattainment areas in the

State. The inventory is 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 fully approving the SIP 1990

base year ozone emission inventories submitted by New Hampshire to the

EPA for the Portsmouth-Dover-Rochester serious nonattainment area, the

New Hampshire portion of the Boston-Lawrence-Worcester serious

nonattainment area, and the Manchester marginal 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

New Hampshire 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 soliciting public comment on them. This action will be

effective December 26, 1997 unless, by November 26, 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 rule that will

withdraw the final actions. All public comments received will then 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 26, 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

considered separately in light of specific technical, economic, and

environmental factors, 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. 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. 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,

[[Page 55525]]

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 26, 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.

Note: Incorporation by reference of the State Implementation

Plan for the State of New Hampshire was approved by the Director of

the Federal Register on July 1, 1982.

Dated: September 29, 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. 7401-7642.

Subpart EE--New Hampshire

2. Section 52.1533 is added to read as follows:

Sec. 52.1533 Emission inventories.

(a) The Governor's designee for the State of New Hampshire

submitted a 1990 base year emission inventory for the entire state on

January 26, 1993 as a revision to the State Implementation Plan (SIP).

Subsequent revisions to the State's 1990 inventories were made, the

last of which occurred on August 29, 1996. 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 the three nonattainment areas

in the State. The three areas are the Portsmouth-Dover-Rochester

serious area, the New Hampshire portion of the Boston-Lawrence-

Worcester serious area, and the Manchester marginal area.

(b) The inventory is for the ozone precursors which are volatile

organic compounds, nitrogen oxides, and carbon monoxide. The inventory

covers point, area, non-road mobile, on-road mobile, and biogenic

sources.

(c) The Portsmouth-Dover-Rochester serious nonattainment area

includes all of Strafford County and part of Rockingham County. The New

Hampshire portion of the Boston-Lawrence-Worcester serious area

includes portions of Hillsborough and Rockingham Counties. The

Manchester marginal area contains all of Merrimack County and portions

of Hillsborough and Rockingham Counties.

3. Section 52.1520 is amended by adding paragraph (c)(52) to read

as follows:

Sec. 52.1520 Identification of plan.

(c) * * *

(52) A revision to the New Hampshire SIP regarding ozone

monitoring. The State of New Hampshire will modify its SLAMS and its

NAMS monitoring systems to include a PAMS network design and establish

monitoring sites. The State's SIP revision satisfies 40 CFR 58.20(f)

PAMS requirements.

(i) Incorporation by reference.

(A) State of New Hampshire Photochemical Assessment Monitoring

Stations--Network Plan--Network Overview.

(ii) Additional material.

(A) NH-DES letter dated December 13, 1994, and signed by Thomas M.

Noel, Acting Director, NH-DES.

[FR Doc. 97-28371 Filed 10-24-97; 8:45 am]

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