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PA Bulletin, Doc. No. 08-513


Proposed Revision to the State Implementation Plan for the Clearfield-Indiana 8-Hour Ozone Nonattainment Area; Public Hearing

[38 Pa.B. 1404]
[Saturday, March 22, 2008]

   Ground-level ozone concentrations above the Federal health-based standard are a serious human health threat and can cause damage to crops, forests and wildlife. Ozone is not emitted directly to the atmosphere, but is formed by photochemical reactions between volatile organic compounds (VOCs) and oxides of nitrogen (NOx) in the presence of sunlight. Stationary point sources are one of the major sources of NOx for Clearfield and Indiana Counties (Clearfield-Indiana Area). The Department of Environmental Protection (Department) has reexamined the methodology used to predict future emissions from stationary point sources and found that the methodology used for the June 14, 2007, State Implementation Plan (SIP) revision submitted to the United States Environmental Protection Agency (EPA) for Clearfield-Indiana Area over-predicted future emissions of NOx from electric generating units (EGUs). Department is proposing a SIP revision that explains why the methodology was changed, what new methodology is being used for evaluation, and what the revised emission predictions are.

   Motor vehicles contribute significantly to the precursors of ozone formation. Federal transportation conformity regulations require that transportation planning activities take into account the potential impact on air quality. The maintenance plan portion of the June 14, 2007, SIP revision establishes motor vehicle emission budgets (MVEBs) for purposes of transportation conformity for the entire two-county area. The Department of Transportation has requested separate MVEBs for the separate transportation planning organizations in Clearfield- Indiana Area, which is allowed by Federal regulations. The total of the subarea budgets is the same as the MVEB in the June 14, 2007, SIP revision for the two counties as a whole. The Department is proposing a SIP revision that establishes separate MVEBs for Clearfield-Indiana Area.

   The Department is seeking comment only on the portions of the SIP that pertain to the methodology used to project future emissions from stationary point sources and the separation of MVEBs for Clearfield-Indiana Area. The SIP revision is available on the Department's web site at (DEP Keywords: Air Plans) or through the contact persons listed as follows.

   The Department will hold a public hearing to receive comments on the proposed SIP revision only if a request for a public hearing is received from a member of the public. A request for a public hearing must be received by 4 p.m. on Monday, April 21, 2008. If a request for a public hearing is received by 4 p.m. on Monday, April 21, 2008, the public hearing will be held on Wednesday, April 23, 2008, at 1 p.m., at the Indiana County Courthouse Annex Building, 1st Floor Conference Room, 827 Water Street, Indiana, PA 15701. If the Department does not receive a request for a public hearing by 4 p.m. on Monday, April 21, 2008, the hearing will be cancelled and notice of the cancellation will be published on Tuesday, April 22, 2008, at 12 p.m. at noon, on the Department's web site at www.depweb. (DEP Keywords: Air Plans). Interested parties may also call (717) 787-9495 to find out if the hearing has been cancelled.

   Persons wishing to request a hearing or who wish to present testimony at a scheduled hearing should contact Yvette House, P. O. Box 8468, Harrisburg, PA 17105, (717) 787-9495, The Department will consider a request to present testimony at a scheduled hearing to be a request for a public hearing. Persons who do not reserve a time will be able to testify as time allows. Witnesses should keep testimony to 10 minutes and should provide two written copies of their statement at the hearing.

   Persons with a disability who wish to attend the hearing and require an auxiliary aid, service or other accommodation to participate in the proceeding should contact Yvette House at (717) 787-9495 or yhouse@state. TDD users may contact the AT&T Relay Service at (800) 654-5984 to discuss how the Department can best accommodate their needs.

   Persons interested in this proposed SIP revision are invited to submit written comments on the proposed SIP revision. Written comments must be received by the Department no later than April 25, 2008. Written comments should be sent to the attention of Arleen Shulman, Division of Air Resource Management, Bureau of Air Quality, P. O. Box 8468, Harrisburg, PA 17105-8468, Please use ''Clearfield-Indiana Area Ozone SIP Revision'' in the subject line.


[Pa.B. Doc. No. 08-513. Filed for public inspection March 21, 2008, 9:00 a.m.]

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