BOARD: Henry C. Scott BOARD: Paul C. Aughtry, 111 Chairman Edwin H. Cooper, 111 Vice Chairman Steven G. Kisner Secretary C. Earl Hunter, Commissioner .%mtri,g ~dpwwL*ing &hid ofikpublk ad i& nruimnmmt

:Deceln her 1.7,2007 

### C:ERTIFIE:I) MAIL Jimes I Palmer, Regional Administrator LrSEI' $1 Region 4 Atlanra Federal Center 6 1 Fnrsyth Street, S W Atlanta. GA 30303-8909 Re: South Carolina Air Quality Implementation Plan Revision

# - Regional Haze M. David Mirchd, MD Glennk McCall ColemanF. Buckhouse,MD

Dear Mr. Pidmer: The South CarolinaDepartmentofHealth andEnvironmental Control (the Department) has amended the Slate bnplementation Plan (SIP) to meet obligations of the United States Environmental Protection Agency (EFA) under Section 169A of the Clean Air Act (CAA). This section requires mates to amend their SIPs to provide for the prevention and remediation of manrnade air pollution, which conbibutes to the visibility impairment of Class I Federal areas throughout the country. 

### In 1980, the EPA promulgated regulations to address visibility impairment that is "reasonably attributable" to one or 

### a small group of sourceslocated across abroad geographic area (referredto as regional haze). However, the EPA deferred action on regional haze regulations until monitoring, model i ng, and scientificknowledge aboutthe relationshipbetween pollutants and visibility effects irnpro\ cd. 

### In 1993, at the recommendation of a National Academy of Science (NAS) report, the EPA began conducting research into control technologies available for taking regulatory action to irnprcn c and protect visibility in Class I areas. On Jul j 3 1: 1997, the EPA published proposed amendments to the 1980 regulationsto set forth a program to address regional haze [62 FR 41 1381. On July 1, 1999, and July 6, 2005, the EPA promulgated two rules known as the "Regional Haze Regulation (Regional Haze Rule)" and the ''Regio~xalHaze Regulations and Guidelines for Best Available Retrofit Technology (BART) Determinations" (alsoreferredto 

### as the BART Rule), respectively. TheRegional Haze Rule calls for States to establish goals and strategies for improving visibility in all of the country's 156 Class 

### I nationctlparks and wilderness areas. Cape Romain, South Carolina is one such Class I area. The EPA is requiring all states areas to revise their SIPs to reduce emissions 

### of sulfur dioxide (SOz), oxides of nitrogen (NO,), and particulate matter--especially fine particulate matter (PM2.5)--all of which contribute to regional haze and affect Class 

### I areas. Statesmust also address BART in their regional haze SIPs. SIl's addressing Regional Haze and BART requirements are due to the EPA no later 

### t11:m December 17,2007. The Department has determined that no BART-eligible facilitiesin

SOUTHCA :OL,:NADEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL 2600Bull Street Columbia,SC 29201 Phone: (803) 898-3432 wwwacdhecgwSouth <:i~l.olina SIP Revision - Regional Haze Page 2 December 17,2007 

### South Carolinawill have to undergo Mer 

### analysis for BART, 

### as all ofthese facilities successfidly demonstratedexemption. One facility, DAK Americas, LLC., optedto acceptemission limitations in its Part 70

### Air Quality OperatingPermit 

### so as 

### to demonstrateexemption from BART. 'please see Condition 5.E.34 

### and 6.B.51 

### in the footnote below. Enclosed with 

### this letter is a copy SouthCarolina's proposed Regional 

### Haze SIPand its appendices, as 

### well electronic versions of each. The plan and appendices constitutea SIP revision and include measures necessaryto make reasonableprogress towardthenational goal. 

### Thesemeasuresinclude a long-term strategy for the reduction of visibility impairment that examines emission reductions required by other Clean Air Act programs, the 

### possible application of 

### BART,and 

### ang. additional control measures identified as 

### reasonable by a four fixctor analysis. 19 

### staff-ledpublic hearingto discussthisplan was held onNovember 26,2007. No commentswere received the clay ofthehearing. However, several 

### written commentswerereceived atthe conclusion ol'the public comment period on December 12,2007. Those comments deemed significant by 

### the Ilepartment were used to modifl the SIP and are addressed within Appendix 

### J. The Department requests 

### find approval fiom EPA on the revision to the 

### South Carolina 

### SIP. The Dcpartrnent appreciatesthe assistanceprovided by EPA staklFregardingthe 

### formulation ofthis plan. S

### liould you or your staffhave any questionsor comments coxmmingthis SIPrevision, please contact Stacey Gardner of 

### my staff

### at (803) 898-4287 or gardnesrO;dhee.sc.~ov.

IZobert W. 

### King, Jr., P.E. Deputy Commissioner 13nvironmentalQuality Control

cc: Kay Prince, Chief, Air Planning Branch, USEPA Region 

### 4 (w/ attachments) Richard A. Schutt, Chief, Regulatory Development Section, EPA Region

### N (w/ attachments) Nacosta Ward, Regulatory Development Section, EPA bgion

### XV (w/ attachments) Stacey Gardner, Manager, Regulatory Development Se&m, BAQ (w/mIsments)

cc w/out attachments: Myra Reece, Chief, BAQ, SCDHEC Robert 

### J. Brown, Jr., Director, Division of Air Planning, Development and Outreach, SCDHEC l~nclosu re - 

### Regional 

### Haze State Implementation Plan and SupportingAppendices 

### - '4. 

### - 

# ..A
t .' 

### . .South (:'~solina S[P Revision - Regional Haze Page 3 1)ccemhc.l. 17,2007

PART 5.0 EMISSION UNIT REQUIREMENTS E. EMISSION UNIT CONDITIONS The combined total steam flow (output) fiom Unit ID01 and ID02 shall not exceed 255,000 lblhr or the capacity equivalent of a combined maximum heat input value of 320 million BTU& while burning No. 6 Fuel Oil.

PART 6.0 MONITORING AND REPORTING REQUIREMENTS [SC RegLIlatioil 6 1-62.1, Section 111; [SC Regulation 6 1 -62.70.6(a)(3)(i)(B)1 

### - l'he combined total steam flow (output) from Unit DO1 and DO2 shall not exceed 287,100 Ibhr or the capacity equivalent of a combined maximum heat input value of 360 million BTUhr while burning No. 2 Fuel Oil.

H. MONITORING AND REPORTING CONDITIONS
51. l'he permittee shall maintain a monthly log sheet to record the daily maximum steam flow rate for each boiler. A copy of the monthly log sheets shall be submitted semimually to the Manager ofthe l'echnical Management Section, Bureau of the Air Quality postmarked no later than 30 calendar days after the end ofthe reporting period.