Regional Administrator

U.S. Environmental Protection Agency, Region III

1650 Arch Street (Mailcode 3RA00)

Philadelphia, PA 19103-2029

Dear Mr. Garvin:I am writing to officially withdraw the analysis ofreasonably available control measures(RACM) and reasonably available control technology (RACT) (hereinafter RACT/RACM)element from the Commonwealth of Pennsylvania’s State Implementation Plan (SIP) revision to

demonstrate attainment ofthe 1997 annual fine particulate matter (PM23)national ambient air

quality standard (NAAQS) for the Pennsylvania portion ofthe Philadelphia-Wilmington, PA-NJDE nonattainment area (Philadelphia Area). This SIP revision was submitted to the U.S.Environmental Protection Agency (EPA) on April 12, 2010.

The April 2010 SIP submittal included the Pennsylvania portion ofthe Philadelphia Area’s

attainment demonstration, motor vehicle emission budgets (MVEBs) used for transportation

conformity purposes, analysis ofRACT/RACM, a base year emissions inventory, andcontingency measures as required by Section 172(c) ofthe Clean Air Act (CAA) (42 U.S.C. §7502(c)). The requirement for a reasonable further progress (RFP) plan was not required

because Pennsylvania projected that attainment ofthe 1997 PM25 NAAQS would have occurred

in the Pennsylvania portion ofthe Philadelphia area by the prescribed attaimnent date, April 5,2010.

On May 16, 2012, EPA published two determinations of attainment ofthe 1997 annual PM2.5

NAAQS for the Philadelphia Area (77 FR 28782). First, pursuant to section 179(c) ofthe CAA,

(42 U.S.C. § 7509), EPA has determined that the Philadelphia Area attained the 1997 annual

PM2.5NAAQS by its attainment date, April 5, 2010, based upon quality assured and certified

ambient air monitoring data for the 2007-2009 monitoring period. Second, EPA made a “clean

data” determination, finding that the Philadelphia Area attained the 1991 annual PM2.5NAAQS

based upon 2007-2009 arid 2008-2010 quality assured and certified ambient air monitoring datathat shows the Philadelphia Area has monitored attainment ofthe 1997 annual PM2.5NAAQS.

Accordingly, this clean data determination suspended the requirements for the Philadelphia Area

to submit an attainment demonstration and associated RACMJRACT, RFP plan, contingency

measures, and any other planning requirements related to attainment ofthe 1997 annual PM2.5

NAAQS, as provided in 40 CFR 51.1004(c), for as long as the area continues to attain the

1997 annual PM2•5NAAQS.

Rachel Carson State Office Building I P.O. Box 2063 I Harrisburg, PA 17105-2063

717.787.2814 PrInted on Recycled Paper www.depweb.state.pa.us
longer necessary as the requirement for the RACT /RACM analysis was suspended, pursuant to 40 CFR 5 1.1004(c), by EPA’s May 16, 2012, clean data determination. To this end, I am

withdrawing the portion ofthe April 12, 2010, SIP revision submittal that pertains to the RACT/RACM analysis. Specifically, the Department is withdrawing Section IV.B in its

entirety, pages 29-31 (in part) and Appendix 0 in its entirety.

In addition, I am requesting that EPA approve expeditiously the remaining portions ofthe Aprii 12,2010, SIP submittal including the attainment demonstration, associated MVEBs for

transportation conformity, and contingency measures.

Thank you in advance for expediting approval ofthe transportation conformity MVEBs for the

Pennsylvania portion ofthe Philadelphia nonattainment area. Should you have any questions or need additional information, please contact Joyce E. Epps, Director, Bureau ofAir Quality, by email atjeeppspa.gov or by telephone at 717.787.9702.

e

Michael L. Kranc

Secretary