BOARD : BOARD: Paul C. Aughrry, ll [ Cha irman He nry C. Sco£t

Edw ir1 H. Coo p er, [[[ Vi ce C hairman

· r

even G. K

. isner Sec r etary C. E arl Hu nrer , Commiss ior1 er Promoting andprotecting the health of the public and the mvironmmr



### June 1, 2011

Gwendolyn Keyes Fleming, Esq. Regional Administrator US EPA Region 4 Atlanta Federal Center 61 Forsyth Street, S.W

. Atlanta, GA 30303-8909



### Re: Revision to South Carolina Air Quality Implementation Plan M

. David M irchell , MD
Gle nn A. McCall
Coleman F. Buckhousc, MD



### SIP Package: Redesignation Demonstration and Maintenance Plan for the York County portion of the Charlotte-Gastonia-Rock HiU NC-SC Nonattainment Area

Dear Ms. Keyes Fleming:
The South Carolina Department of Health and Environmental Control (Department) is pleased to submit the Redesignation Demonstration and Maintenance Plan for the York County portion of the Charlotte-Gastonia-Rock Hill NC-SC 8-hour Ozone (Metrolina) Nonattainment Area. Enclosed is the complete package containing the redesignation demonstration for the York County portion of the Metrolina nonattainment area, along with certified air quality data, and a maintenance plan which fulfills the requirements of Section 175A of the Clean Air Act as amended.
A public notice to revise the State Implementation Plan (SIP) was published in the 

### State Register on March 25, 2011, and is included as Attachment E in this package. The 

### State Register notice referenced a 30 day comment period that would conclude on April 25, 2011 , however, due to a delay in the associated documentation, the Department extended this comment period to coincide with the proposed public hearing date of May 2, 2011. A public hearing on this issue was offered on May 2, 2011; however, the Department did not receive a request for a public hearing and it was thereby cancelled, as allowed by 40 CFR 51.102. The department did receive comments regarding its pre-hearing submittal from the EPA. These comments, along with Department responses , are included as Attachment F

.

S O UT H C RO L IN A D E P A R T M E N T OF H EA LTH A ND E N V IR O MENTAL CO TROL 2600 Bu \1 Street • Colu mbi a,SC2920l• Ph o ne : (8 03)898-3432 • www.scdhec.govRF ATS Redesignation Demonstration and Maintenance Plan May 31 , 2 011
The Depattment appreciates the assistance provided by you and your staff regarding the formulation of this plan. Should you or your staff have any questions or comments concerning this SIP revision , please contact Mr. Robe1t Brown of the Bureau of Air Quality at 803-898- 4105 , or brownrj @ dhec

. sc.gov.

# -~,.....___) ert W. King, Jr., P.E. Deputy Commissioner Environmental Quality Control South Carolina Department of Health and Environmental Control

ec: Lynorae Benjamin, Chief, Regulatory Development Section , EPA Region 4 Jane Spann, Ozone Coordinator, EPA Region 4 Royce Dansby-Sparks, South Carolina Liaison, EPA Region 4 Myra Reece, Chief, BAQ, SCDHEC Renee Shealy , Assistant Bureau Chief , BAQ, SCDHEC Robert 

### J. Brown, Jr., Director, Div. of Air Assessment , Innovations and Regulation , BAQ , SCDHEC L. Nelson Roberts , Jr. , Manager, Air Quality Standard s & Assessment Section, BAQ SCDHEC Maeve S. R. Mason , Manager, Regulation and SIP Management Section , BAQ, SCDHEC Keith Overcash , Director, North Carolina Department of Environment and Natural Resources, Division of Air Quality Laura Boothe, Attainment Planning Branch Supervisor, North Carolina Department of Environment and Natural Resources, Division of Air Quality Donald W. Rodgers, Chief, Catawba Indian Nation
CD enclosure: 1997 8-Hour Ozone Redesignation Demonstration and Maintenance Plan Appendix A: Point Source Emissions Inventory Documentation Appendix B: Area Emissions Inventory Documentation Appendix C: On-road Mobile Source Inventory Documentation Appendix D: Nonroad Emissions Inventory Documentation Appendix E: Public Notice Published on March 25, 2011 , in the SC State Register Appendix F: EPA Comments to Pre-hearing SIP Submittal and Department Response. Appendix G: Copy of Legal Authority



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