BOARD: Henry C. Scott BOARD: Paul C. Aughcry, 111 Chairman Edwin H. Cooper, 111 Vice Chairman Steven G. lsner Secretary C. Earl Hunter, Commissioner Promoting andprotecting thehealth ofthepublic and the environment M. David Mitchell, MD Glenn A. McCall Coleman F. Buckhouse.MD
February 16,201 1



### CERTIFIED MAIL Ms. Gwendolyn Keyes Fleming Regional Administrator United States Environmental Protection Agency, Region 4 SamNunn Federal Center 61 Forsyth Street, SW Atlanta, Georgia 30303-8960



### Re: Revision to South Carolina

### Air Quality Implementation Plan -

### 2009 End of Year Revisions

Dear Ms. Fleming: The South Carolina Department of Health and Environmental Control ("Department") requests that the U.S. Environmental Protection Agency ("EPA") grant final approval to this revision of the South Carolina Air Quality Implementation Plan ("SIP"). The EPA promulgates amendments to federal regulations throughout each calendar year. In order to maintain consistency with the appropriate federal revisions, the Department annually incorporates relevant federal rules from the previous year. One ofthe 2009 federal amendments that the Department is incorporating into state regulations, 

### an amendment to the definition of Volatile Organic Compounds ("VOCS"),' amends a section of stateregulations that is part of the SIP. The remaining changes are to state regulations that are not part of the SIP, such as National Emissions Standards for Hazardous Air Pollutants. The enclosed SIP revision is the Department's amendment to the definition of VOCs. The Department published a public notice to revise the aforementioned part of the SIP in the South Carolina State Register on June 25, 2010. The Department held a staff-led informational forum (SIF) on July 26,2010.No stakeholders attended, and the Department received no comments. A transcript of the SIF is included in Appendix A. The Department held a public hearing for this revision before the Board of Health and 

## ' Air Quality: Revision to Definition of Volatile Organic Compounds-Exclusion of Propylene Carbonate and Dimethyl Carbonate, 74 Fed. Reg. 3437. (Jan. 21,2009).

SOUTH CAROLINA DEPARTMENT OFHEALTH ANDENVIRONMENTAL, CON'I'ROL, 2600Bull Street Columbia,SC29201 Phone:(803) 898-3432 www.scdhec.govMs. Fleming February 16,2011 Page 2 

### Environmental Control on November 10,201 0, at which the Department received no comments. A transcript of this meeting is included asAppendix B. The Department published a final notice to revise the aforementioned portion ofthe SIP in the 

### South CarolinaState Register on November 26, 201 0, at which time it became state effective. The Department 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 Alan Hancock of the Bureau of Air Quality at (803) 898-4.139or hancocam@dhec.sc.gov.

Robert W. King, Jr., P.E. Deputy Commissioner Environmental Quality Control South Carolina Department of Health and Environmental Control

ec: Richard Schutt, Chief, Air Planning Branch, EPA Region 4 

### Lynorae Benjamin, Chief, Regulatory Development Section, EPA Region 4 

### Royce Dansby-Sparks, Regulatory Development Section, EPA Region 4 

### Myra Reece, Chief, BAQ, S.C. DHEC Renee Shealy, Assistant Bureau Chief, BAQ, S.C. DHEC Robert Brown, Director, Division ofAir Assessment, Innovations, and Regulation, BAQ, S.C.DHEC Maeve S.R. Mason, Manager, Regulation and SIP Management Section, BAQ, S.C. DHEC

CD enclosure: 1. 

### Text of Final Regulation (strikeout and clean copy) 2. Appendix A: Notices of Drafting, Notice ofProposed Regulation, Staff-Led Informational Forum Sign-in Sheet and Transcript 3. Appendix B: Board Public Hearing Transcript and Notice of Final Regulation 4. 

### Appendix C: Copy of Legal Authority