Pat McCrory 

Governor 

Aprill6, 2015 

Donald R. van der Vaart 

Secretary 

Heather McTeer Toney 

Regional Administrator 

USEP A Region 4 

Atlanta Federal Center 

61 Forsyth Street, SW 

Atlanta, GA 30303-8960 

Subject: Redesignation Demonstration and Maintenance Plan for the Charlotte-GastoniaSalisbury, North Carolina 2008 8-Hour Ozone Marginal Nonattainment Area, and 

Clean Air Act Section 11 0(1) Non-Interference Demonstration to Support the 

Gasoline Reid Vapor Pressure (RVP) Standard Relaxation in Gaston and 

Mecklenburg Counties 

Dear Ms. Toney: 

I am pleased to submit the following two final submissions: 

• "Redesignation Demonstration and Maintenance Plan for Charlotte-GastoniaSalisbury, North Carolina 2008 8-Hour Ozone Marginal Nonattainment Area" 

• "Clean Air Act Section 110(l) Non-Interference Demonstration to Support the 

Gasoline Reid Vapor Pressure (RVP) Standard Relaxation in Gaston and 

Mecklenburg Counties" 

Enclosed is one hard copy of the complete package containing the redesignation 

demonstration and maintenance plan, the RVP Clean Air Act Section 11 0(1) non-interference 

demonstration, as well as the supporting documentation. An exact duplicate electronic copy is 

being provided with Motor Vehicle Emission Simulator (MOVES2014) model input and output 

files. 

The Division of Air Quality (DAQ) issued a public notice announcement on March 9, 

2015, in accordance with 40 CFR 51.102, indicating that the "Redesignation Demonstration and 

Maintenance Plan for Charlotte-Gastonia-Salisbury, North Carolina 2008 8-Hour Ozone 

Marginal Nonattainment Area " and the "Clean Air Act Section 11 O(l) Non-Interference 

Demonstration to Support the Gasoline Reid Vapor Pressure (RVP) Standard Relaxation in 

Gaston and Mecklenburg Counties " were available for public comment and posted on the DAQ 

website for review. The public notice announcement indicated that anyone may request a public 

hearing. 
Heather McTeer Toney 

April16, 2015 

Page 2 

In addition to posting on the DAQ website, the public notice announcement was sent to a 

number of e-mail distribution lists managed by the DAQ that includes numerous stakeholders 

from industry and environmental groups. The DAQ believes that sending the public notice 

announcement to these groups is more effective than publishing the notice in a few local 

newspapers and is consistent with the requirements described in the April6, 2011 , memorandum, 

"Regional Consistency for the Administrative Requirements of the State Implementation Plan 

Submittals and the Use of Letter Notices. " 

Additionally, the Rich Site Summary (RSS) feed on the DAQ website offers regular 

delivery to persons interested in receiving updates to the website content. The document was 

also made available for review during normal business hours at the DAQ Central Office in 

Raleigh and the Mooresville Regional Office. 

The public comment period was open from March 9, 2015 through AprillO, 2015. The 

DAQ did not receive any requests for a public hearing. Comments were received from the EPA 

and the North Carolina Petroleum and Convenience Marketers (NCPCM). The EPA offered no 

comments at this time. The NCPCM commented in support ofthe DAQ's request to the EPA to 

relax the summertime RVP standard from 7.8 pounds per square inch (psi) to 9.0 psi in Gaston 

and Mecklenburg Counties. The comments received during the public comment period did not 

require any revisions to these two submissions. Copies of letters submitted by the commenters 

are provided in Appendix C -Public Notice Report. 

The DAQ believes it has in good faith addressed the requirements of Section 

107(d)(3)(E) ofthe Clean Air Act to redesignate the Charlotte-Gastonia-Salisbury nonattainment 

area to attainment of the 2008 8-hour ozone standard. The DAQ also believes that it has in good 

faith addressed the requirements of Section 11 0(1) of the Clean Air Act to Support the Gasoline 

RVP Standard Relaxation in Gaston and Mecklenburg Counties. In addition, the DAQ has 

included the revised redesignation demonstration and maintenance plan to incorporate the 

relaxation of the summertime RVP gasoline standard in Gaston and Mecklenburg Counties. 

If you have any questions regarding this submittal, please contact Randy Strait of my 

staff at (919) 707-8721. 

SCH/rps 

Attachments 

cc: Michael Abraczinskas, DAQ 

Sincerely, 

~C~~ Sheila C. Holman, Director 

Division of Air Quality, NCDENR 
Heather McTeer Toney 

April16, 2015 

Page 3 

Sushma Masemore, DAQ 

Randy Strait, DAQ 

Scott Davis, USEP A 

Lynorae Benjamin, USEPA 

Leslie Rhodes, Mecklenburg County Air Quality 

Myra Reese, SCDHEC